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Remove tilegx port.

Browse Source 
Since tile support has been removed from the Linux kernel for 4.17,
this patch removes the (unmaintained) port to tilegx from glibc (the
tilepro support having been previously removed).  This reflects the
general principle that a glibc port needs upstream support for the
architecture in all the components it build-depends on (so binutils,
GCC and the Linux kernel, for the normal case of a port supporting the
Linux kernel but no other OS), in order to be maintainable.

Apart from removal of sysdeps/tile and sysdeps/unix/sysv/linux/tile,
there are updates to various comments referencing tile for which
removal of those references seemed appropriate.  The configuration is
removed from README and from build-many-glibcs.py.  contrib.texi keeps
mention of removed contributions, but I updated Chris Metcalf's entry
to reflect that he also contributed the non-removed support for the
generic Linux kernel syscall interface.
__ASSUME_FADVISE64_64_NO_ALIGN support is removed, as it was only used
by tile.

	* sysdeps/tile: Remove.
	* sysdeps/unix/sysv/linux/tile: Likewise.
	* README (tilegx-*-linux-gnu): Remove from list of supported
	configurations.
	* manual/contrib.texi (Contributors): Mention Chris Metcalf's
	contribution of support for generic Linux kernel syscall
	interface.
	* scripts/build-many-glibcs.py (Context.add_all_configs): Remove
	tilegx configurations.
	(Config.install_linux_headers): Do not handle tile.
	* sysdeps/unix/sysv/linux/aarch64/ldsodefs.h: Do not mention Tile
	in comment.
	* sysdeps/unix/sysv/linux/nios2/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/posix_fadvise.c: Likewise.
	[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
	conditional undefine and redefine.
	* sysdeps/unix/sysv/linux/posix_fadvise64.c: Do not mention Tile
	in comment.
	[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
	conditional undefine and redefine.
This commit is contained in:
Joseph Myers 2018-04-27 19:11:24 +00:00
parent 7a6f747871
commit a3fb6b6bc3
164 changed files with 32 additions and 15720 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
ChangeLog
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@ -1,3 +1,26 @@
2018-04-27 Joseph Myers <joseph@codesourcery.com>
* sysdeps/tile: Remove.
* sysdeps/unix/sysv/linux/tile: Likewise.
* README (tilegx-*-linux-gnu): Remove from list of supported
configurations.
* manual/contrib.texi (Contributors): Mention Chris Metcalf's
contribution of support for generic Linux kernel syscall
interface.
* scripts/build-many-glibcs.py (Context.add_all_configs): Remove
tilegx configurations.
(Config.install_linux_headers): Do not handle tile.
* sysdeps/unix/sysv/linux/aarch64/ldsodefs.h: Do not mention Tile
in comment.
* sysdeps/unix/sysv/linux/nios2/Makefile: Likewise.
* sysdeps/unix/sysv/linux/posix_fadvise.c: Likewise.
[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
conditional undefine and redefine.
* sysdeps/unix/sysv/linux/posix_fadvise64.c: Do not mention Tile
in comment.
[__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove
conditional undefine and redefine.
2018-04-26 Aurelien Jarno <aurelien@aurel32.net> 2018-04-26 Aurelien Jarno <aurelien@aurel32.net>
* signal/tst-sigaction.c: New file to test BZ #23069. * signal/tst-sigaction.c: New file to test BZ #23069.

2
NEWS
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@ -57,6 +57,8 @@ Deprecated and removed features, and other changes affecting compatibility:
these macros should first include <sys/types.h>, and then include these macros should first include <sys/types.h>, and then include
<sys/sysmacros.h> if __GNU_LIBRARY__ is defined. <sys/sysmacros.h> if __GNU_LIBRARY__ is defined.
* The tilegx*-*-linux-gnu configurations are no longer supported.
Changes to build and runtime requirements: Changes to build and runtime requirements:
[Add changes to build and runtime requirements here] [Add changes to build and runtime requirements here]

1
README
View File

@ -41,7 +41,6 @@ The GNU C Library supports these configurations for using Linux kernels:
sh[34]-*-linux-gnu sh[34]-*-linux-gnu
sparc*-*-linux-gnu sparc*-*-linux-gnu
sparc64*-*-linux-gnu sparc64*-*-linux-gnu
tilegx-*-linux-gnu
If you are interested in doing a port, please contact the glibc If you are interested in doing a port, please contact the glibc
maintainers; see http://www.gnu.org/software/libc/ for more maintainers; see http://www.gnu.org/software/libc/ for more

3
manual/contrib.texi
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@ -265,7 +265,8 @@ version 3 (@code{i386-sequent-bsd}).
@item @item
Chris Metcalf for the port to Linux/Tile Chris Metcalf for the port to Linux/Tile
(@code{tilegx-@var{anything}-linux} and (@code{tilegx-@var{anything}-linux} and
@code{tilepro-@var{anything}-linux}). @code{tilepro-@var{anything}-linux}) and support for the generic Linux
kernel syscall interface used by several newer ports.
@item @item
David Miller for contributing the port to Linux/Sparc David Miller for contributing the port to Linux/Sparc

9
scripts/build-many-glibcs.py
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@ -376,14 +376,6 @@ class Context(object):
'arch': 'sparcv9', 'arch': 'sparcv9',
'ccopts': '-m32 -mlong-double-128', 'ccopts': '-m32 -mlong-double-128',
'cfg': ['--disable-multi-arch']}]) 'cfg': ['--disable-multi-arch']}])
self.add_config(arch='tilegx',
os_name='linux-gnu',
glibcs=[{},
{'variant': '32', 'ccopts': '-m32'}])
self.add_config(arch='tilegxbe',
os_name='linux-gnu',
glibcs=[{},
{'variant': '32', 'ccopts': '-m32'}])
self.add_config(arch='x86_64', self.add_config(arch='x86_64',
os_name='linux-gnu', os_name='linux-gnu',
gcc_cfg=['--with-multilib-list=m64,m32,mx32'], gcc_cfg=['--with-multilib-list=m64,m32,mx32'],
@ -1271,7 +1263,6 @@ class Config(object):
'riscv64': 'riscv', 'riscv64': 'riscv',
'sh': 'sh', 'sh': 'sh',
'sparc': 'sparc', 'sparc': 'sparc',
'tile': 'tile',
'x86_64': 'x86'} 'x86_64': 'x86'}
linux_arch = None linux_arch = None
for k in arch_map: for k in arch_map:

4
sysdeps/tile/Implies
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@ -1,4 +0,0 @@
ieee754/soft-fp
ieee754/dbl-64/wordsize-64
ieee754/dbl-64
ieee754/flt-32

49
sysdeps/tile/Makefile
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@ -1,49 +0,0 @@
include $(common-objpfx)cflags-mcmodel-large.mk
# Check for gcc to support the command-line switch, and for
# binutils to support the hwN_plt() assembly operators and relocations.
$(common-objpfx)cflags-mcmodel-large.mk: $(common-objpfx)config.make
mcmodel=no; \
(echo 'int main() { return getuid(); }' | \
$(CC) -o /dev/null -xc - -mcmodel=large -fpic) && mcmodel=yes; \
echo "cflags-mcmodel-large = $$mcmodel" > $@
ifeq (yes,$(cflags-mcmodel-large))
ifeq ($(subdir),csu)
# elf-init.c is in libc_nonshared.o (the end of the shared object) but
# must reach the _init symbol at the very start of the shared object.
CFLAGS-elf-init.c += -mcmodel=large
# __gmon_start__ is at the very start of the shared object when linked
# with profiling, but calls to libc.so via the PLT at the very end.
CFLAGS-gmon-start.c += -mcmodel=large
endif
else
# Don't try to compile assembly code with hwN_plt() directives if the
# toolchain doesn't support -mcmodel=large.
ifeq ($(subdir),csu)
CPPFLAGS-start.S += -DNO_PLT_PCREL
CPPFLAGS-crti.S += -DNO_PLT_PCREL
endif
ifeq ($(subdir),nptl)
CPPFLAGS-pt-crti.S += -DNO_PLT_PCREL
endif
endif
# We don't support long doubles as a distinct type. We don't need to set
# this variable; it's here mostly for documentational purposes.
long-double-fcts = no
ifeq ($(subdir),gmon)
sysdep_routines += _mcount
endif
ifeq ($(subdir),elf)
# Extra shared linker files to link only into dl-allobjs.so.
sysdep-rtld-routines += dl-start __tls_get_addr
endif

6
sysdeps/tile/Versions
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@ -1,6 +0,0 @@
libc {
GLIBC_2.12 {
# name requested by gcc community.
__mcount;
}
}

57
sysdeps/tile/__longjmp.S
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@ -1,57 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
#include <asm-syntax.h>
#include <arch/spr_def.h>
/* PL to return to via iret in longjmp */
#define RETURN_PL 0
.text
ENTRY (__longjmp)
FEEDBACK_ENTER(__longjmp)
#define RESTORE(r) { ld r, r0 ; ADDI_PTR r0, r0, REGSIZE }
FOR_EACH_CALLEE_SAVED_REG(RESTORE)
/* Make longjmp(buf, 0) return "1" instead.
At the same time, construct our iret context; we set ICS so
we can validly load EX_CONTEXT for iret without being
interrupted halfway through. */
{
ld r2, r0 /* retrieve ICS bit from jmp_buf */
movei r3, 1
cmpeqi r0, r1, 0
}
{
mtspr INTERRUPT_CRITICAL_SECTION, r3
shli r2, r2, SPR_EX_CONTEXT_0_1__ICS_SHIFT
}
{
mtspr EX_CONTEXT_0_0, lr
ori r2, r2, RETURN_PL
}
{
or r0, r1, r0
mtspr EX_CONTEXT_0_1, r2
}
iret
jrp lr /* Keep the backtracer happy. */
END (__longjmp)

141
sysdeps/tile/__tls_get_addr.S
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@ -1,141 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <tls.h>
#include <bits/wordsize.h>
#if __WORDSIZE == 64
#define LOG_SIZEOF_DTV_T 4
#else
#define LOG_SIZEOF_DTV_T 3
#endif
/* On entry, r0 points to two words, the module and the offset.
On return, r0 holds the pointer to the relevant TLS memory.
Only registers r25..r29 are clobbered by the call. */
.text
ENTRY (__tls_get_addr)
{
lnk r25
ADDI_PTR r27, tp, DTV_OFFSET
}
.Llnk:
{
LD_PTR r27, r27 /* r27 = THREAD_DTV() */
moveli r26, hw1_last(_rtld_local + TLS_GENERATION_OFFSET - .Llnk)
}
shl16insli r26, r26, hw0(_rtld_local + TLS_GENERATION_OFFSET - .Llnk)
{
ADD_PTR r25, r25, r26
LD_PTR r26, r0 /* r26 = ti_module */
}
LD_PTR r25, r25 /* r25 = DL(dl_tls_generation) */
{
LD_PTR r28, r27 /* r28 = THREAD_DTV()->counter */
ADDI_PTR r29, r0, __SIZEOF_POINTER__
}
{
LD_PTR r29, r29 /* r29 = ti_offset */
cmpeq r25, r28, r25 /* r25 nonzero if generation OK */
shli r28, r26, LOG_SIZEOF_DTV_T /* byte index into dtv array */
}
{
beqz r25, .Lslowpath
cmpeqi r25, r26, -1 /* r25 nonzero if ti_module invalid */
}
{
bnez r25, .Lslowpath
ADD_PTR r28, r28, r27 /* pointer into module array */
}
LD_PTR r26, r28 /* r26 = module TLS pointer */
cmpeqi r25, r26, -1 /* check r26 == TLS_DTV_UNALLOCATED */
bnez r25, .Lslowpath
{
ADD_PTR r0, r26, r29
jrp lr
}
.Lslowpath:
{
st sp, lr
ADDLI_PTR r29, sp, - (25 * REGSIZE)
}
cfi_offset (lr, 0)
{
st r29, sp
ADDLI_PTR sp, sp, - (26 * REGSIZE)
}
cfi_def_cfa_offset (26 * REGSIZE)
ADDI_PTR r29, sp, (2 * REGSIZE)
{ st r29, r1; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r2; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r3; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r4; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r5; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r6; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r7; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r8; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r9; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r10; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r11; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r12; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r13; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r14; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r15; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r16; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r17; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r18; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r19; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r20; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r21; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r22; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r23; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r24; ADDI_PTR r29, r29, REGSIZE }
.hidden __tls_get_addr_slow
jal __tls_get_addr_slow
ADDI_PTR r29, sp, (2 * REGSIZE)
{ ld r1, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r2, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r3, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r4, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r5, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r6, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r7, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r8, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r9, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r10, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r11, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r12, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r13, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r14, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r15, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r16, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r17, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r18, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r19, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r20, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r21, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r22, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r23, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r24, r29; ADDLI_PTR sp, sp, (26 * REGSIZE) }
cfi_def_cfa_offset (0)
ld lr, sp
jrp lr
END (__tls_get_addr)

87
sysdeps/tile/_mcount.S
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@ -1,87 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
Based on work contributed by David Mosberger (davidm@cs.arizona.edu).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Assembly stub to invoke __mcount_internal(). Compiler-generated
code calls mcount after executing a function's prologue, placing
the "lr" register in "r10" for the call. As a result "lr" is the
function that invoked mcount, and "r10" is mcount's caller's
caller. However, we have to save all the parameter registers here
before invoking _mcount_internal. Callee-save and temporary
registers need no special attention. We save r10 and restore it to
lr on the way out, to properly handle the case of ENTRY() in
assembly code, before lr is saved. We use the name __mcount since
the gcc community prefers using the reserved namespace. */
#include <sysdep.h>
.text
ENTRY(__mcount)
{
st sp, lr
ADDI_PTR r29, sp, - (12 * REGSIZE)
}
cfi_offset (lr, 0)
{
ADDI_PTR sp, sp, - (13 * REGSIZE)
st r29, sp
ADDI_PTR r29, r29, REGSIZE
}
cfi_def_cfa_offset (13 * REGSIZE)
{ st r29, r0; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r1; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r2; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r3; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r4; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r5; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r6; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r7; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r8; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r9; ADDI_PTR r29, r29, REGSIZE }
{ st r29, r10; ADDI_PTR r29, r29, REGSIZE; move r0, r10 }
{
move r1, lr
jal __mcount_internal
}
{
ADDI_PTR r29, sp, (2 * REGSIZE)
}
{ ld r0, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r1, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r2, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r3, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r4, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r5, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r6, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r7, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r8, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r9, r29; ADDI_PTR r29, r29, REGSIZE }
{ ld r10, r29; ADDI_PTR sp, sp, (13 * REGSIZE) }
cfi_def_cfa_offset (0)
{
ld lr, sp
}
{
move lr, r10
jrp lr
}
END(__mcount)
#undef mcount
weak_alias (__mcount, _mcount) /* exported in gmon/Versions */
weak_alias (__mcount, mcount) /* exported in stdlib/Versions */

2
sysdeps/tile/abort-instr.h
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@ -1,2 +0,0 @@
/* An instruction which should crash any program is `hlt'. */
#define ABORT_INSTRUCTION asm ("ill")

110
sysdeps/tile/atomic-machine.h
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@ -1,110 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _ATOMIC_MACHINE_H
#define _ATOMIC_MACHINE_H 1
#include <stdint.h>
#include <features.h>
#include <arch/spr_def.h>
typedef int32_t atomic32_t;
typedef uint32_t uatomic32_t;
typedef int_fast32_t atomic_fast32_t;
typedef uint_fast32_t uatomic_fast32_t;
typedef int64_t atomic64_t;
typedef uint64_t uatomic64_t;
typedef int_fast64_t atomic_fast64_t;
typedef uint_fast64_t uatomic_fast64_t;
typedef intptr_t atomicptr_t;
typedef uintptr_t uatomicptr_t;
typedef intmax_t atomic_max_t;
typedef uintmax_t uatomic_max_t;
#ifdef _LP64
# define __HAVE_64B_ATOMICS 1
#else
/* tilegx32 does have 64-bit atomics, but assumptions in the semaphore
code mean that unaligned 64-bit atomics will be used if this symbol
is true, and unaligned atomics are not supported on tile. */
# define __HAVE_64B_ATOMICS 0
#endif
#define USE_ATOMIC_COMPILER_BUILTINS 0
#define ATOMIC_EXCHANGE_USES_CAS 0
/* Pick appropriate 8- or 4-byte instruction. */
#define __atomic_update(mem, v, op) \
((__typeof (*(mem))) (__typeof (*(mem) - *(mem))) \
((sizeof (*(mem)) == 8) ? \
__insn_##op ((void *) (mem), (int64_t) (__typeof((v) - (v))) (v)) : \
(sizeof (*(mem)) == 4) ? \
__insn_##op##4 ((void *) (mem), (int32_t) (__typeof ((v) - (v))) (v)) : \
__atomic_error_bad_argument_size()))
#define atomic_compare_and_exchange_val_acq(mem, n, o) \
({ __insn_mtspr (SPR_CMPEXCH_VALUE, (int64_t) (__typeof ((o) - (o))) (o)); \
__atomic_update (mem, n, cmpexch); })
#define atomic_exchange_acq(mem, newvalue) \
__atomic_update (mem, newvalue, exch)
#define atomic_exchange_and_add(mem, value) \
__atomic_update (mem, value, fetchadd)
#define atomic_and_val(mem, mask) \
__atomic_update (mem, mask, fetchand)
#define atomic_or_val(mem, mask) \
__atomic_update (mem, mask, fetchor)
#define atomic_decrement_if_positive(mem) \
__atomic_update (mem, -1, fetchaddgez)
/* Barrier macro. */
#define atomic_full_barrier() __sync_synchronize()
/* APIs with "release" semantics. */
#define atomic_compare_and_exchange_val_rel(mem, n, o) \
({ \
atomic_full_barrier (); \
atomic_compare_and_exchange_val_acq ((mem), (n), (o)); \
})
#define atomic_exchange_rel(mem, n) \
({ \
atomic_full_barrier (); \
atomic_exchange_acq ((mem), (n)); \
})
/* Various macros that should just be synonyms. */
#define catomic_exchange_and_add atomic_exchange_and_add
#define atomic_and(mem, mask) ((void) atomic_and_val ((mem), (mask)))
#define catomic_and atomic_and
#define atomic_or(mem, mask) ((void) atomic_or_val ((mem), (mask)))
#define catomic_or atomic_or
/* atomic_bit_test_set in terms of atomic_or_val. */
#define atomic_bit_test_set(mem, bit) \
({ __typeof (*(mem)) __att0_mask = ((__typeof (*(mem))) 1 << (bit)); \
atomic_or_val ((mem), __att0_mask) & __att0_mask; })
/*
* This non-existent symbol is called for unsupporrted sizes,
* indicating a bug in the caller.
*/
extern int __atomic_error_bad_argument_size(void)
__attribute__ ((warning ("bad sizeof atomic argument")));
#endif /* _ATOMIC_MACHINE_H */

11
sysdeps/tile/bits/endian.h
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@ -1,11 +0,0 @@
/* Set endianness for tile. */
#ifndef _ENDIAN_H
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
#endif
#if defined __BIG_ENDIAN__
# define __BYTE_ORDER __BIG_ENDIAN
#else
# define __BYTE_ORDER __LITTLE_ENDIAN
#endif

53
sysdeps/tile/bits/fenv.h
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@ -1,53 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* The TILE-Gx hardware does not provide floating-point exception
handling, and TILEPro does not support any floating-point operations. */
#define FE_ALL_EXCEPT 0
/* TILE-Gx supports only round-to-nearest. The software
floating-point support also acts this way. */
enum
{
__FE_UNDEFINED = 0,
FE_TONEAREST =
#define FE_TONEAREST 1
FE_TONEAREST,
};
/* Type representing exception flags (if there were any). */
typedef unsigned int fexcept_t;
/* Type representing floating-point environment. */
typedef unsigned int fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((const fenv_t *) -1l)
#if __GLIBC_USE (IEC_60559_BFP_EXT)
/* Type representing floating-point control modes. */
typedef unsigned int femode_t;
/* Default floating-point control modes. */
# define FE_DFL_MODE ((const femode_t *) -1L)
#endif

57
sysdeps/tile/bits/link.h
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@ -1,57 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _LINK_H
# error "Never include <bits/link.h> directly; use <link.h> instead."
#endif
#define __need_int_reg_t
#include <arch/abi.h>
/* Registers for entry into PLT. */
typedef struct La_tile_regs
{
__uint_reg_t lr_reg[10];
} La_tile_regs;
/* Return values for calls from PLT. */
typedef struct La_tile_retval
{
/* Up to ten registers can be used for a return value (e.g. small struct). */
__uint_reg_t lrv_reg[10];
} La_tile_retval;
__BEGIN_DECLS
extern ElfW(Addr) la_tile_gnu_pltenter (ElfW(Sym) *__sym, unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
La_tile_regs *__regs,
unsigned int *__flags,
const char *__symname,
long int *__framesizep);
extern unsigned int la_tile_gnu_pltexit (ElfW(Sym) *__sym, unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
const La_tile_regs *__inregs,
La_tile_retval *__outregs,
const char *__symname);
__END_DECLS

36
sysdeps/tile/bits/setjmp.h
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@ -1,36 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Define the machine-dependent type `jmp_buf'. TILE version. */
#ifndef _BITS_SETJMP_H
#define _BITS_SETJMP_H 1
#if !defined _SETJMP_H && !defined _PTHREAD_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
#ifndef _ASM
#define __need_int_reg_t
#include <arch/abi.h>
typedef __uint_reg_t __jmp_buf[32];
#endif
#endif /* bits/setjmp.h */

11
sysdeps/tile/bits/wordsize.h
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@ -1,11 +0,0 @@
/* Determine the wordsize from the preprocessor defines. */
#ifdef __LP64__
# define __WORDSIZE 64
# define __WORDSIZE_TIME64_COMPAT32 1
#else
# define __WORDSIZE 32
# define __WORDSIZE_TIME64_COMPAT32 0
# define __WORDSIZE32_SIZE_ULONG 0
# define __WORDSIZE32_PTRDIFF_LONG 0
#endif

1
sysdeps/tile/bsd-_setjmp.S
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@ -1 +0,0 @@
/* _setjmp is in setjmp.S */

1
sysdeps/tile/bsd-setjmp.S
View File

@ -1 +0,0 @@
/* setjmp is in setjmp.S */

30
sysdeps/tile/bzero.S
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@ -1,30 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
ENTRY(__bzero)
FEEDBACK_ENTER(__bzero)
{
move r2, r1
move r1, zero
}
j __memset
END(__bzero)
weak_alias (__bzero, bzero)

7
sysdeps/tile/configure vendored
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@ -1,7 +0,0 @@
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/tile.
# We can always access static and hidden symbols in a position independent way.
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
# work around problem with autoconf and empty lines at the end of files

6
sysdeps/tile/configure.ac
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@ -1,6 +0,0 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/tile.
# We can always access static and hidden symbols in a position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)
# work around problem with autoconf and empty lines at the end of files

113
sysdeps/tile/crti.S
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@ -1,113 +0,0 @@
/* Special .init and .fini section support for tile.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* crti.S puts a function prologue at the beginning of the .init and
.fini sections and defines global symbols for those addresses, so
they can be called as functions. The symbols _init and _fini are
magic and cause the linker to emit DT_INIT and DT_FINI. */
#include <libc-symbols.h>
#include <sysdep.h>
#ifndef PREINIT_FUNCTION
# define PREINIT_FUNCTION __gmon_start__
#endif
#ifndef PREINIT_FUNCTION_WEAK
# define PREINIT_FUNCTION_WEAK 1
#endif
#if PREINIT_FUNCTION_WEAK
weak_extern (PREINIT_FUNCTION)
#else
.hidden PREINIT_FUNCTION
#endif
.section .init,"ax",@progbits
.align 8
.globl _init
.type _init, @function
_init:
{
move r29, sp
ADDI_PTR r28, sp, -REGSIZE
st sp, lr
}
ADDI_PTR sp, sp, -(2 * REGSIZE)
st r28, r29
#if PREINIT_FUNCTION_WEAK
lnk r2
0:
moveli r1, hw2_last(_GLOBAL_OFFSET_TABLE_ - 0b)
{
shl16insli r1, r1, hw1(_GLOBAL_OFFSET_TABLE_ - 0b)
moveli r0, hw1_last_got(PREINIT_FUNCTION)
}
{
shl16insli r1, r1, hw0(_GLOBAL_OFFSET_TABLE_ - 0b)
shl16insli r0, r0, hw0_got(PREINIT_FUNCTION)
}
ADD_PTR r0, r0, r1
ADD_PTR r0, r0, r2
LD_PTR r0, r0
beqz r0, .Lno_weak_fn
jalr r0
#elif !defined(NO_PLT_PCREL)
/* Since we are calling from the start of the object to the PLT,
call by loading the full address into a register. */
lnk r2
0:
moveli r0, hw2_last_plt(PREINIT_FUNCTION - 0b)
shl16insli r0, r0, hw1_plt(PREINIT_FUNCTION - 0b)
shl16insli r0, r0, hw0_plt(PREINIT_FUNCTION - 0b)
add r0, r0, r2
jalr r0
#else
jal plt(PREINIT_FUNCTION)
#endif
.Lno_weak_fn:
.section .fini,"ax",@progbits
.align 8
.globl _fini
.type _fini, @function
_fini:
{
move r29, sp
ADDI_PTR r28, sp, -REGSIZE
st sp, lr
}
ADDI_PTR sp, sp, -(2 * REGSIZE)
st r28, r29

55
sysdeps/tile/crtn.S
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@ -1,55 +0,0 @@
/* Special .init and .fini section support for tile.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* crtn.S puts function epilogues in the .init and .fini sections
corresponding to the prologues in crti.S. */
#include <sysdep.h>
.section .init,"ax",@progbits
ADDI_PTR r29, sp, (2 * REGSIZE)
{
ADDI_PTR sp, sp, (2 * REGSIZE)
ld lr, r29
}
jrp lr
.section .fini,"ax",@progbits
ADDI_PTR r29, sp, (2 * REGSIZE)
{
ADDI_PTR sp, sp, (2 * REGSIZE)
ld lr, r29
}
jrp lr

27
sysdeps/tile/dl-lookupcfg.h
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@ -1,27 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define DL_UNMAP_IS_SPECIAL
#include_next <dl-lookupcfg.h>
struct link_map;
void _dl_unmap (struct link_map *map);
#define DL_UNMAP(map) _dl_unmap (map)

692
sysdeps/tile/dl-machine.h
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@ -1,692 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
Based on work contributed by by Carl Pederson & Martin Schwidefsky.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef dl_machine_h
#define dl_machine_h
#define ELF_MACHINE_NAME "tilegx"
#include <sys/param.h>
#include <string.h>
#include <link.h>
#include <bits/wordsize.h>
#include <arch/icache.h>
#include <arch/opcode.h>
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int
elf_machine_matches_host (const ElfW(Ehdr) *ehdr)
{
if (ehdr->e_machine != EM_TILEGX)
return 0;
#if __WORDSIZE == 32
return (ehdr->e_ident[EI_CLASS] == ELFCLASS32);
#else
return (ehdr->e_ident[EI_CLASS] == ELFCLASS64);
#endif
}
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT. This must be inlined in a function which
uses global data. */
static inline ElfW(Addr)
elf_machine_dynamic (void)
{
ElfW(Addr) *got;
ElfW(Addr) tmp;
asm( " { lnk %0; moveli %1, hw2_last(_GLOBAL_OFFSET_TABLE_ - 1f) }\n"
"1: shl16insli %1, %1, hw1(_GLOBAL_OFFSET_TABLE_ - 1b)\n"
" shl16insli %1, %1, hw0(_GLOBAL_OFFSET_TABLE_ - 1b)\n"
" add %0, %0, %1"
: "=r" (got), "=r" (tmp));
return *got;
}
/* Return the run-time load address of the shared object. */
static inline ElfW(Addr)
elf_machine_load_address (void)
{
ElfW(Addr) *got;
ElfW(Addr) dynamic;
ElfW(Addr) tmp;
asm( " lnk %2\n"
"1: {\n"
" moveli %0, hw2_last(_GLOBAL_OFFSET_TABLE_ - 1b)\n"
" moveli %1, hw2_last(_DYNAMIC - 1b)\n"
" }\n"
" {\n"
" shl16insli %0, %0, hw1(_GLOBAL_OFFSET_TABLE_ - 1b)\n"
" shl16insli %1, %1, hw1(_DYNAMIC - 1b)\n"
" }\n"
" {\n"
" shl16insli %0, %0, hw0(_GLOBAL_OFFSET_TABLE_ - 1b)\n"
" shl16insli %1, %1, hw0(_DYNAMIC - 1b)\n"
" }\n"
" {\n"
" add %0, %0, %2\n"
" add %1, %1, %2\n"
" }"
: "=r" (got), "=r" (dynamic), "=r" (tmp));
return dynamic - *got;
}
/* Flush some range of the instruction cache. If invoked prior to
actually setting dl_pagesize, we conservatively use 4KB, which
is the smallest page size we could plausibly be running with. */
static inline void
_dl_flush_icache (const void *addr, unsigned long size)
{
invalidate_icache (addr, size, GLRO(dl_pagesize) ? : 4096);
}
/* Set up the loaded object described by L so its unrelocated PLT
entries will jump to the on-demand fixup code in dl-runtime.c. */
static inline int __attribute__ ((unused))
elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
{
ElfW(Addr) *gotplt;
extern void _dl_runtime_resolve (ElfW(Word));
extern void _dl_runtime_profile (ElfW(Word));
if (l->l_info[DT_JMPREL] && lazy)
{
gotplt = (ElfW(Addr) *) D_PTR (l, l_info[DT_PLTGOT]);
/* The GOT entries for functions in the PLT have not yet been filled
in. Their initial contents will arrange when called to put in
registers an offset into the .rel.plt section, and gotplt[0], then
jump to gotplt[1]. */
/* Identify this shared object. */
gotplt[0] = (ElfW(Addr)) l;
/* The gotplt[1] entry contains the address of a function which gets
called to get the address of a so far unresolved function and jump
to it. The profiling extension of the dynamic linker allows to
intercept the calls to collect information. In this case we don't
store the address in the GOTPLT so that all future calls also end
in this function. */
if (__builtin_expect (profile, 0))
{
gotplt[1] = (ElfW(Addr)) &_dl_runtime_profile;
if (GLRO(dl_profile) != NULL
&& _dl_name_match_p (GLRO(dl_profile), l))
/* This is the object we are looking for. Say that we really
want profiling and the timers are started. */
GL(dl_profile_map) = l;
}
else
/* This function will get called to fix up the GOTPLT entry
indicated by the offset on the stack, and then jump to the
resolved address. */
gotplt[1] = (ElfW(Addr)) &_dl_runtime_resolve;
}
return lazy;
}
#if __WORDSIZE == 32
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
#define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL
#endif
/* Initial entry point code for the dynamic linker.
The C function `_dl_start' is the real entry point;
its return value is the user program's entry point. */
#define RTLD_START asm (".globl _dl_start");
#ifndef RTLD_START_SPECIAL_INIT
#define RTLD_START_SPECIAL_INIT /* nothing */
#endif
/* Wrap a generic Tilera relocation type. */
#define R_TILE(x) R_TILEGX_##x
#define __R_TILE_TLS(x,c) R_TILEGX_TLS_##x##c
#define _R_TILE_TLS(x,c) __R_TILE_TLS(x,c)
#define R_TILE_TLS(x) _R_TILE_TLS(x,__ELF_NATIVE_CLASS)
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
TLS variable, so undefined references should not be allowed to
define the value.
ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
of the main executable's symbols, as for a COPY reloc. */
#define elf_machine_type_class(type) \
((((type) == R_TILE(JMP_SLOT) || (type) == R_TILE_TLS(DTPMOD) \
|| (type) == R_TILE_TLS(DTPOFF) || (type) == R_TILE_TLS(TPOFF)) \
* ELF_RTYPE_CLASS_PLT) \
| (((type) == R_TILE(COPY)) * ELF_RTYPE_CLASS_COPY))
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
#define ELF_MACHINE_JMP_SLOT R_TILE(JMP_SLOT)
/* TILE never uses Elf32_Rel relocations. */
#define ELF_MACHINE_NO_REL 1
#define ELF_MACHINE_NO_RELA 0
/* We define an initialization functions. This is called very early in
_dl_sysdep_start. */
#define DL_PLATFORM_INIT dl_platform_init ()
static inline void __attribute__ ((unused))
dl_platform_init (void)
{
if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
/* Avoid an empty string which would disturb us. */
GLRO(dl_platform) = NULL;
}
static inline ElfW(Addr)
elf_machine_fixup_plt (struct link_map *map, lookup_t t,
const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
const ElfW(Rela) *reloc,
ElfW(Addr) *reloc_addr, ElfW(Addr) value)
{
return *reloc_addr = value;
}
/* Return the final value of a plt relocation. */
static inline ElfW(Addr)
elf_machine_plt_value (struct link_map *map, const ElfW(Rela) *reloc,
ElfW(Addr) value)
{
return value;
}
/* Support notifying the simulator about new objects. */
void _dl_after_load (struct link_map *l);
#define DL_AFTER_LOAD _dl_after_load
/* Names of the architecture-specific auditing callback functions. */
#define ARCH_LA_PLTENTER tile_gnu_pltenter
#define ARCH_LA_PLTEXIT tile_gnu_pltexit
#endif /* !dl_machine_h */
#ifdef RESOLVE_MAP
struct reloc_howto
{
/* Right shift operand by this number of bits. */
unsigned char right_shift;
/* If nonzero, this is updating a code bundle. */
unsigned char is_bundle_update;
/* If nonzero, subtract the containing address from the address. */
unsigned char is_pcrel;
/* Size in bytes, or 0 if this table entry should be ignored. */
unsigned char byte_size;
};
/* Relocation information. Cannot contain create_* function pointers
because then the table would not be position-independent. */
static const struct reloc_howto howto[] =
{
#if __WORDSIZE == 32
/* The GX -m32 loader only handles 32-bit types, so it will be confused
by shifts larger than that. We convert them to just sign-extend;
they usually indicate a program bug or missed optimization, but we
have to handle them correctly anyway. */
# define S32 31
# define S48 31
#else
# define S32 32
# define S48 48
#endif
/* R_TILEGX_NONE */ { 0, 0, 0, 0 },
/* R_TILEGX_64 */ { 0, 0, 0, 8 },
/* R_TILEGX_32 */ { 0, 0, 0, 4 },
/* R_TILEGX_16 */ { 0, 0, 0, 2 },
/* R_TILEGX_8 */ { 0, 0, 0, 1 },
/* R_TILEGX_64_PCREL */ { 0, 0, 1, 8 },
/* R_TILEGX_32_PCREL */ { 0, 0, 1, 4 },
/* R_TILEGX_16_PCREL */ { 0, 0, 1, 2 },
/* R_TILEGX_8_PCREL */ { 0, 0, 1, 1 },
/* R_TILEGX_HW0 */ { 0, 0, 0, 0 },
/* R_TILEGX_HW1 */ { 16, 0, 0, 0 },
/* R_TILEGX_HW2 */ { S32, 0, 0, 0 },
/* R_TILEGX_HW3 */ { S48, 0, 0, 0 },
/* R_TILEGX_HW0_LAST */ { 0, 0, 0, 0 },
/* R_TILEGX_HW1_LAST */ { 16, 0, 0, 0 },
/* R_TILEGX_HW2_LAST */ { S32, 0, 0, 0 },
/* R_TILEGX_COPY */ { 0, 0, 0, 0 },
/* R_TILEGX_GLOB_DAT */ { 0, 0, 0, 8 },
/* R_TILEGX_JMP_SLOT */ { 0, 0, 0, 0 },
/* R_TILEGX_RELATIVE */ { 0, 0, 0, 0 },
/* R_TILEGX_BROFF_X1 */ { 3, 1, 1, 8 },
/* R_TILEGX_JUMPOFF_X1 */ { 3, 1, 1, 8 },
/* R_TILEGX_JUMPOFF_X1_PLT */ { 3, 1, 1, 8 },
/* R_TILEGX_IMM8_X0 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM8_Y0 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM8_X1 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM8_Y1 */ { 0, 1, 0, 8 },
/* R_TILEGX_DEST_IMM8_X1 */ { 0, 1, 0, 8 },
/* R_TILEGX_MT_IMM14_X1 */ { 0, 1, 0, 8 },
/* R_TILEGX_MF_IMM14_X1 */ { 0, 1, 0, 8 },
/* R_TILEGX_MMSTART_X0 */ { 0, 1, 0, 8 },
/* R_TILEGX_MMEND_X0 */ { 0, 1, 0, 8 },
/* R_TILEGX_SHAMT_X0 */ { 0, 1, 0, 8 },
/* R_TILEGX_SHAMT_X1 */ { 0, 1, 0, 8 },
/* R_TILEGX_SHAMT_Y0 */ { 0, 1, 0, 8 },
/* R_TILEGX_SHAMT_Y1 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0 */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1 */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1 */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2 */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2 */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW3 */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW3 */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0_LAST */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0_LAST */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1_LAST */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1_LAST */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2_LAST */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2_LAST */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0_PCREL */ { 0, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW0_PCREL */ { 0, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW1_PCREL */ { 16, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW1_PCREL */ { 16, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW2_PCREL */ { S32, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW2_PCREL */ { S32, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW3_PCREL */ { S48, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW3_PCREL */ { S48, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW0_LAST_PCREL */ { 0, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW0_LAST_PCREL */ { 0, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW1_LAST_PCREL */ { 16, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW1_LAST_PCREL */ { 16, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW2_LAST_PCREL */ { S32, 1, 1, 8 },
/* R_TILEGX_IMM16_X1_HW2_LAST_PCREL */ { S32, 1, 1, 8 },
/* R_TILEGX_IMM16_X0_HW0_GOT */ { 0, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW0_GOT */ { 0, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW1_GOT */ { 16, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW1_GOT */ { 16, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW2_GOT */ { S32, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW2_GOT */ { S32, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW3_GOT */ { S48, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW3_GOT */ { S48, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW0_LAST_GOT */ { 0, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW0_LAST_GOT */ { 0, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW1_LAST_GOT */ { 16, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW1_LAST_GOT */ { 16, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW2_LAST_GOT */ { S32, 1, 0, 0 },
/* R_TILEGX_IMM16_X1_HW2_LAST_GOT */ { S32, 1, 0, 0 },
/* R_TILEGX_IMM16_X0_HW0_TLS_GD */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0_TLS_GD */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1_TLS_GD */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1_TLS_GD */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2_TLS_GD */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2_TLS_GD */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW3_TLS_GD */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW3_TLS_GD */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD */{ 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD */{ 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD */{ 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD */{ 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD */{ S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD */{ S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0_TLS_IE */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0_TLS_IE */ { 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1_TLS_IE */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1_TLS_IE */ { 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2_TLS_IE */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2_TLS_IE */ { S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW3_TLS_IE */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW3_TLS_IE */ { S48, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE */{ 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE */{ 0, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE */{ 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE */{ 16, 1, 0, 8 },
/* R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE */{ S32, 1, 0, 8 },
/* R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE */{ S32, 1, 0, 8 },
/* R_TILEGX_TLS_DTPMOD64 */ { 0, 0, 0, 0 },
/* R_TILEGX_TLS_DTPOFF64 */ { 0, 0, 0, 0 },
/* R_TILEGX_TLS_TPOFF64 */ { 0, 0, 0, 0 },
/* R_TILEGX_TLS_DTPMOD32 */ { 0, 0, 0, 0 },
/* R_TILEGX_TLS_DTPOFF32 */ { 0, 0, 0, 0 },
/* R_TILEGX_TLS_TPOFF32 */ { 0, 0, 0, 0 }
};
#if __ELF_NATIVE_CLASS == 32
#define ELFW_R_TYPE ELF32_R_TYPE
#define ELFW_ST_TYPE ELF32_ST_TYPE
#else
#define ELFW_R_TYPE ELF64_R_TYPE
#define ELFW_ST_TYPE ELF64_ST_TYPE
#endif
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
MAP is the object containing the reloc. */
auto inline void __attribute__ ((always_inline))
elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
const ElfW(Sym) *sym, const struct r_found_version *version,
void *const reloc_addr_arg, int skip_ifunc)
{
ElfW(Addr) *const reloc_addr = reloc_addr_arg;
const unsigned int r_type = ELFW_R_TYPE (reloc->r_info);
#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
if (__builtin_expect (r_type == R_TILE(RELATIVE), 0))
{
# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
/* This is defined in rtld.c, but nowhere in the static libc.a;
make the reference weak so static programs can still link.
This declaration cannot be done when compiling rtld.c
(i.e. #ifdef RTLD_BOOTSTRAP) because rtld.c contains the
common defn for _dl_rtld_map, which is incompatible with a
weak decl in the same file. */
# ifndef SHARED
weak_extern (GL(dl_rtld_map));
# endif
if (map != &GL(dl_rtld_map)) /* Already done in rtld itself. */
# endif
*reloc_addr = map->l_addr + reloc->r_addend;
return;
}
#endif
if (__builtin_expect (r_type == R_TILE(NONE), 0))
return;
#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
const ElfW(Sym) *const refsym = sym;
#endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
ElfW(Addr) value;
if (sym == NULL)
value = 0;
else if (ELFW_ST_TYPE (sym->st_info) == STT_SECTION)
value = map->l_addr; /* like a RELATIVE reloc */
else
value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
&& __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
&& __builtin_expect (!skip_ifunc, 1))
value = ((Elf64_Addr (*) (void)) value) ();
switch (r_type)
{
case R_TILE(JMP_SLOT):
elf_machine_fixup_plt (map, 0, 0, 0, reloc, reloc_addr,
value + reloc->r_addend);
return;
#ifndef RESOLVE_CONFLICT_FIND_MAP
case R_TILE_TLS(DTPMOD):
# ifdef RTLD_BOOTSTRAP
/* During startup the dynamic linker is always the module
with index 1.
XXX If this relocation is necessary move before RESOLVE
call. */
*reloc_addr = 1;
# else
/* Get the information from the link map returned by the
resolv function. */
if (sym_map != NULL)
*reloc_addr = sym_map->l_tls_modid;
# endif
return;
case R_TILE_TLS(DTPOFF):
# ifndef RTLD_BOOTSTRAP
/* During relocation all TLS symbols are defined and used.
Therefore the offset is already correct. */
if (sym != NULL)
*reloc_addr = sym->st_value + reloc->r_addend;
# endif
return;
case R_TILE_TLS(TPOFF):
# ifdef RTLD_BOOTSTRAP
*reloc_addr = sym->st_value + reloc->r_addend + map->l_tls_offset;
# else
if (sym != NULL)
{
CHECK_STATIC_TLS (map, sym_map);
*reloc_addr = (sym->st_value + reloc->r_addend
+ sym_map->l_tls_offset);
}
#endif
return;
#endif /* use TLS */
#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
/* Not needed in dl-conflict.c. */
case R_TILE(COPY):
if (sym == NULL)
/* This can happen in trace mode if an object could not be found. */
return;
if (__builtin_expect (sym->st_size > refsym->st_size, 0)
|| (__builtin_expect (sym->st_size < refsym->st_size, 0)
&& __builtin_expect (GLRO(dl_verbose), 0)))
{
const char *strtab;
strtab = (const char *) D_PTR (map,l_info[DT_STRTAB]);
_dl_error_printf ("%s: Symbol `%s' has different size in shared"
" object, consider re-linking\n",
RTLD_PROGNAME, strtab + refsym->st_name);
}
memcpy (reloc_addr_arg, (void *) value,
MIN (sym->st_size, refsym->st_size));
return;
#endif
}
/* All remaining relocations must be in the lookup table. */
const struct reloc_howto *h = &howto[r_type];
if ((unsigned int) r_type >= sizeof howto / sizeof howto[0] ||
h->byte_size == 0)
{
#if !defined RTLD_BOOTSTRAP || defined _NDEBUG
/* We add these checks in the version to relocate ld.so only
if we are still debugging. */
_dl_reloc_bad_type (map, r_type, 0);
#endif
return;
}
value += reloc->r_addend;
/* The lookup table entry knows how to perform this reloc. */
if (h->is_pcrel)
value -= (ElfW(Addr)) reloc_addr;
value = ((long) value) >> h->right_shift;
switch (h->byte_size)
{
case 1:
*(char *) reloc_addr = value;
return;
case 2:
*(short *) reloc_addr = value;
return;
case 4:
*(int *) reloc_addr = value;
return;
case 8:
if (!h->is_bundle_update)
{
*(ElfW(Addr) *) reloc_addr = value;
return;
}
}
/* We are updating a bundle, so use the function pointer that
swizzles the operand bits into the right location. */
tile_bundle_bits *p = (tile_bundle_bits *) reloc_addr;
tile_bundle_bits bits = *p;
#define MUNGE_SIGNED(func, length) do { \
bits = ((bits & ~create_##func (-1)) | create_##func (value)); \
ElfW(Addr) result = get_##func (bits); \
int signbits = __WORDSIZE - length; \
result = (long) (result << signbits) >> signbits; \
if (result != value) \
_dl_signal_error (0, map->l_name, NULL, \
"relocation value too large for " #func); \
} while (0)
#define MUNGE(func) MUNGE_SIGNED(func, __WORDSIZE)
#define MUNGE_NOCHECK(func) \
bits = ((bits & ~create_##func (-1)) | create_##func (value))
switch (r_type)
{
case R_TILEGX_BROFF_X1:
MUNGE_SIGNED (BrOff_X1, 17);
break;
case R_TILEGX_JUMPOFF_X1:
case R_TILEGX_JUMPOFF_X1_PLT:
MUNGE_SIGNED (JumpOff_X1, 27);
break;
case R_TILEGX_IMM8_X0:
MUNGE_SIGNED (Imm8_X0, 8);
break;
case R_TILEGX_IMM8_Y0:
MUNGE_SIGNED (Imm8_Y0, 8);
break;
case R_TILEGX_IMM8_X1:
MUNGE_SIGNED (Imm8_X1, 8);
break;
case R_TILEGX_IMM8_Y1:
MUNGE_SIGNED (Imm8_Y1, 8);
break;
case R_TILEGX_MT_IMM14_X1:
MUNGE (MT_Imm14_X1);
break;
case R_TILEGX_MF_IMM14_X1:
MUNGE (MF_Imm14_X1);
break;
case R_TILEGX_IMM16_X0_HW0:
case R_TILEGX_IMM16_X0_HW1:
case R_TILEGX_IMM16_X0_HW2:
case R_TILEGX_IMM16_X0_HW3:
case R_TILEGX_IMM16_X0_HW0_PCREL:
case R_TILEGX_IMM16_X0_HW1_PCREL:
case R_TILEGX_IMM16_X0_HW2_PCREL:
case R_TILEGX_IMM16_X0_HW3_PCREL:
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
case R_TILEGX_IMM16_X0_HW0_TLS_IE:
MUNGE_NOCHECK (Imm16_X0);
break;
case R_TILEGX_IMM16_X0_HW0_LAST:
case R_TILEGX_IMM16_X0_HW1_LAST:
case R_TILEGX_IMM16_X0_HW2_LAST:
case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
MUNGE_SIGNED (Imm16_X0, 16);
break;
case R_TILEGX_IMM16_X1_HW0:
case R_TILEGX_IMM16_X1_HW1:
case R_TILEGX_IMM16_X1_HW2:
case R_TILEGX_IMM16_X1_HW3:
case R_TILEGX_IMM16_X1_HW0_PCREL:
case R_TILEGX_IMM16_X1_HW1_PCREL:
case R_TILEGX_IMM16_X1_HW2_PCREL:
case R_TILEGX_IMM16_X1_HW3_PCREL:
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
MUNGE_NOCHECK (Imm16_X1);
break;
case R_TILEGX_IMM16_X1_HW0_LAST:
case R_TILEGX_IMM16_X1_HW1_LAST:
case R_TILEGX_IMM16_X1_HW2_LAST:
case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
MUNGE_SIGNED (Imm16_X1, 16);
break;
case R_TILEGX_MMSTART_X0:
MUNGE (BFStart_X0);
break;
case R_TILEGX_MMEND_X0:
MUNGE (BFEnd_X0);
break;
case R_TILEGX_SHAMT_X0:
MUNGE (ShAmt_X0);
break;
case R_TILEGX_SHAMT_X1:
MUNGE (ShAmt_X1);
break;
case R_TILEGX_SHAMT_Y0:
MUNGE (ShAmt_Y0);
break;
case R_TILEGX_SHAMT_Y1:
MUNGE (ShAmt_Y1);
break;
}
#undef MUNGE
*p = bits;
_dl_flush_icache (p, sizeof (*p));
}
auto inline void __attribute__ ((always_inline))
elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
void *const reloc_addr_arg)
{
ElfW(Addr) *const reloc_addr = reloc_addr_arg;
*reloc_addr = l_addr + reloc->r_addend;
}
auto inline void __attribute__ ((always_inline))
elf_machine_lazy_rel (struct link_map *map,
ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
int skip_ifunc)
{
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
/* Check for unexpected PLT reloc type. */
if (__builtin_expect (r_type == R_TILE(JMP_SLOT), 1))
{
*(ElfW(Addr) *) (l_addr + reloc->r_offset) += l_addr;
}
else
_dl_reloc_bad_type (map, r_type, 1);
}
#endif /* RESOLVE_MAP */

159
sysdeps/tile/dl-runtime.c
View File

@ -1,159 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Like x86_64, we pass the index of the relocation and not its offset.
In _dl_profile_fixup and _dl_call_pltexit we also use the index.
Therefore it is wasteful to compute the offset in the trampoline
just to reverse the operation immediately afterwards. */
#define reloc_offset reloc_arg * sizeof (PLTREL)
#define reloc_index reloc_arg
#include <elf/dl-runtime.c>
#include <sys/mman.h>
#include <arch/sim.h>
#include <dl-unmap-segments.h>
/* Like realpath(), but simplified: no dynamic memory use, no lstat(),
no set_errno(), no valid "rpath" on error, etc. This handles some
simple cases where the simulator might not have a valid entry for
a loaded Elf object, in particular dlopen() with a relative path.
For this relatively rare case, one could also imagine using
link_map.l_origin to avoid the getcwd() here, but the simpler code
here seems like a better solution. */
static char *
dl_realpath (const char *name, char *rpath)
{
char *dest;
const char *start, *end;
if (name[0] != '/')
{
if (!__getcwd (rpath, PATH_MAX))
return NULL;
dest = __rawmemchr (rpath, '\0');
}
else
{
rpath[0] = '/';
dest = rpath + 1;
}
for (start = end = name; *start; start = end)
{
/* Skip sequence of multiple path-separators. */
while (*start == '/')
++start;
/* Find end of path component. */
for (end = start; *end && *end != '/'; ++end)
/* Nothing. */;
if (end - start == 0)
break;
else if (end - start == 1 && start[0] == '.')
/* nothing */;
else if (end - start == 2 && start[0] == '.' && start[1] == '.')
{
/* Back up to previous component, ignore if at root already. */
if (dest > rpath + 1)
while ((--dest)[-1] != '/');
}
else
{
if (dest[-1] != '/')
*dest++ = '/';
if (dest + (end - start) >= rpath + PATH_MAX)
return NULL;
dest = __mempcpy (dest, start, end - start);
*dest = '\0';
}
}
if (dest > rpath + 1 && dest[-1] == '/')
--dest;
*dest = '\0';
return rpath;
}
/* Support notifying the simulator about new objects. */
void
_dl_after_load (struct link_map *l)
{
int shift;
char pathbuf[PATH_MAX];
char *path;
/* Don't bother if not in the simulator. */
if (__insn_mfspr (SPR_SIM_CONTROL) == 0)
return;
#define DLPUTC(c) __insn_mtspr (SPR_SIM_CONTROL, \
(SIM_CONTROL_DLOPEN \
| ((c) << _SIM_CONTROL_OPERATOR_BITS)))
/* Write the library address in hex. */
DLPUTC ('0');
DLPUTC ('x');
for (shift = (int) sizeof (unsigned long) * 8 - 4; shift >= 0; shift -= 4)
DLPUTC ("0123456789abcdef"[(l->l_map_start >> shift) & 0xF]);
DLPUTC (':');
/* Write the library path, including the terminating '\0'. */
path = dl_realpath (l->l_name, pathbuf) ?: l->l_name;
for (size_t i = 0;; i++)
{
DLPUTC (path[i]);
if (path[i] == '\0')
break;
}
#undef DLPUTC
}
/* Support notifying the simulator about removed objects prior to munmap(). */
static void
sim_dlclose (ElfW(Addr) map_start)
{
int shift;
/* Don't bother if not in the simulator. */
if (__insn_mfspr (SPR_SIM_CONTROL) == 0)
return;
#define DLPUTC(c) __insn_mtspr (SPR_SIM_CONTROL, \
(SIM_CONTROL_DLCLOSE \
| ((c) << _SIM_CONTROL_OPERATOR_BITS)))
/* Write the library address in hex. */
DLPUTC ('0');
DLPUTC ('x');
for (shift = (int) sizeof (unsigned long) * 8 - 4; shift >= 0; shift -= 4)
DLPUTC ("0123456789abcdef"[(map_start >> shift) & 0xF]);
DLPUTC ('\0');
#undef DLPUTC
}
void
_dl_unmap (struct link_map *map)
{
sim_dlclose (map->l_map_start);
_dl_unmap_segments (map);
}

109
sysdeps/tile/dl-start.S
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@ -1,109 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
/* Get address of "sym" in "reg" assuming r51 holds ".Llink". */
.macro pic_addr reg, sym
moveli \reg, hw1_last(\sym - .Llink)
shl16insli \reg, \reg, hw0(\sym - .Llink)
ADD_PTR \reg, r51, \reg
.endm
.text
ENTRY (_start)
/* Linux starts us with sp pointing at the conventional Elf layout,
but we need to allow two 'caller' words for our ABI convention. */
{
move r52, sp
andi sp, sp, -8
}
cfi_def_cfa_register (r52)
{
/* Point sp at base of ABI area; point r4 to the caller-sp word. */
ADDI_PTR sp, sp, -(2 * REGSIZE)
ADDI_PTR r4, sp, -REGSIZE
}
{
/* Save zero for caller sp in our 'caller' save area, and make
sure lr has a zero value, to limit backtraces. */
move lr, zero
st r4, zero
}
{
move r0, r52
jal _dl_start
}
/* Save returned start of user program address for later. */
move r50, r0
/* See if we were invoked explicitly with the dynamic loader,
in which case we have to adjust the argument vector. */
lnk r51; .Llink:
pic_addr r4, _dl_skip_args
ld4u r4, r4
beqzt r4, .Lno_skip
/* Load the argc word at the initial sp and adjust it.
We basically jump "sp" up over the first few argv entries
and write "argc" a little higher up in memory, to be the
base of the new kernel-initialized stack area. */
LD_PTR r0, r52
{
sub r0, r0, r4
SHL_PTR_ADD r52, r4, r52
}
{
ST_PTR r52, r0
SHL_PTR_ADD sp, r4, sp
}
andi sp, sp, -8
.Lno_skip:
/* Call_dl_init (_dl_loaded, argc, argv, envp). See elf/start.s
for the layout of memory here; r52 is pointing to "+0". */
pic_addr r0, _rtld_local
{
LD_PTR r1, r52 /* load argc in r1 */
ADDLI_PTR r2, r52, __SIZEOF_POINTER__ /* point r2 at argv */
}
{
LD_PTR r0, r0 /* yields _rtld_global._ns_loaded */
addi r3, r1, 1
move lr, zero
}
{
SHL_PTR_ADD r3, r3, r2 /* point r3 at envp */
jal _dl_init
}
/* Call user program whose address we saved in r50.
We invoke it just like a static binary, but with _dl_fini
in r0 so we can distinguish. */
pic_addr r0, _dl_fini
move lr, zero
{
move sp, r52
jr r50
}
/* Tell backtracer to give up (_start has no caller). */
info 2 /* INFO_OP_CANNOT_BACKTRACE */
END (_start)

27
sysdeps/tile/dl-tls.c
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@ -1,27 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
/* We provide a fast-path version of __tls_get_addr to allow for
the normal case to be fast, both by coding the function tightly,
and more importantly by fixing its register clobber API so the
compiler can avoid having to set up frames, etc., unnecessarily. */
#define __tls_get_addr __tls_get_addr_slow
#endif
#include <elf/dl-tls.c>

42
sysdeps/tile/dl-tls.h
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@ -1,42 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Type used for the representation of TLS information in the GOT. */
typedef struct
{
unsigned long int ti_module;
unsigned long int ti_offset;
} tls_index;
/* Fast-path function to get a TLS pointer. */
extern void *__tls_get_addr (tls_index *ti);
/* The thread pointer points to the first static TLS block. */
#define TLS_TP_OFFSET 0
/* Dynamic thread vector pointers at the start of each TLS block. */
#define TLS_DTV_OFFSET 0
/* Compute the value for a GOTTPREL reloc. */
#define TLS_TPREL_VALUE(sym_map, sym) \
((sym_map)->l_tls_offset + (sym)->st_value - TLS_TP_OFFSET)
/* Compute the value for a DTPREL reloc. */
#define TLS_DTPREL_VALUE(sym) \
((sym)->st_value - TLS_DTV_OFFSET)

193
sysdeps/tile/dl-trampoline.S
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@ -1,193 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <arch/abi.h>
/* This function is called via the PLT header, which is called
from an individual PLT entry.
At this point we have several values passed in:
lr: return address to original user code
r28: the tpnt value to pass to _dl_runtime_resolver
r29: the PLT index of the invoked jump table entry.
We set up a frame entry that looks like this (in int_reg_t units):
+57: r25 return values from function...
+56: r24
[...]
+33: r1
+32: r0
+31: PLT index
+30: tpnt
+29: stackframe
+28: caller lr
+27: r25 arguments to function...
+26: r24
[...]
+3: r1
+2: r0
+1: standard ABI slot (sp)
+0: standard ABI slot (callee lr)
The entries from "stackframe" up are only used in _dl_profile_resolve.
We save and restore r0 through r25, rather than the strictly
architected r0 through r9, to support unusual calling conventions;
for example, __tls_get_addr takes r0 and returns r0, but promises
not to clobber r1 through r24 to support its usual fast path. */
#define FRAME_SP (1 * REGSIZE)
#define FRAME_REGS (2 * REGSIZE)
#define FRAME_LR (28 * REGSIZE) /* Must follow FRAME_REGS */
#define FRAME_STACKFRAME (29 * REGSIZE)
#define FRAME_TPNT (30 * REGSIZE)
#define FRAME_INDEX (31 * REGSIZE)
#define FRAME_RETVAL (32 * REGSIZE)
#define FRAME_SIZE_SMALL (30 * REGSIZE)
#define FRAME_SIZE_LARGE (58 * REGSIZE)
#define FOR_EACH_REG(f) \
f(r0); f(r1); f(r2); f(r3); \
f(r4); f(r5); f(r6); f(r7); \
f(r8); f(r9); f(r10); f(r11); \
f(r12); f(r13); f(r14); f(r15); \
f(r16); f(r17); f(r18); f(r19); \
f(r20); f(r21); f(r22); f(r23); \
f(r24); f(r25)
#define SAVE(REG) { st r27, REG; ADDI_PTR r27, r27, REGSIZE }
#define RESTORE(REG) { ld REG, r27; ADDI_PTR r27, r27, REGSIZE }
.macro dl_resolve, name, profile, framesize
.text
.global \name
.hidden \name
/* Note that cpp expands ENTRY(\name) incorrectly. */
.type \name,@function
.align 8
\name:
cfi_startproc
{
st sp, lr
move r26, sp
}
{
ADDLI_PTR sp, sp, -\framesize
ADDLI_PTR r27, sp, FRAME_SP - \framesize
}
cfi_def_cfa_offset (\framesize)
{
st r27, r26
ADDI_PTR r27, r27, FRAME_REGS - FRAME_SP
}
FOR_EACH_REG(SAVE)
{
st r27, lr
ADDLI_PTR r27, sp, FRAME_TPNT
}
cfi_offset (lr, FRAME_LR - \framesize)
.if \profile
{
move r0, r28 /* tpnt value */
st r27, r28
ADDI_PTR r27, r27, FRAME_INDEX - FRAME_TPNT
}
{
move r1, r29 /* PLT index */
st r27, r29
}
{
move r2, lr /* retaddr */
ADDI_PTR r3, sp, FRAME_REGS /* La_tile_regs pointer */
}
{
ADDLI_PTR r4, sp, FRAME_STACKFRAME /* framesize pointer */
jal _dl_profile_fixup
}
ADDLI_PTR r28, sp, FRAME_STACKFRAME
LD_PTR r28, r28
bgtz r28, 1f
.else
{
move r0, r28 /* tpnt value 1 */
move r1, r29 /* PLT index 2 */
}
jal _dl_fixup
.endif
{
/* Copy aside the return value so we can restore r0 below. */
move r29, r0
/* Set up r27 to let us start restoring registers. */
ADDLI_PTR r27, sp, FRAME_REGS
}
FOR_EACH_REG(RESTORE)
.if \profile
ADDLI_PTR r28, sp, FRAME_STACKFRAME
ld r28, r28
bgtz r28, 1f
.endif
{
/* Restore original user return address. */
ld lr, r27
/* Pop off our stack frame. */
ADDLI_PTR sp, sp, \framesize
}
cfi_def_cfa_offset (0)
jr r29 /* Transfer control to freshly loaded code. */
jrp lr /* Keep backtracer happy. */
.if \profile
1: jalr r29 /* Call resolved function. */
{
ADDLI_PTR r28, sp, FRAME_TPNT
ADDLI_PTR r27, sp, FRAME_RETVAL
}
FOR_EACH_REG(SAVE)
{
ld r0, r28
ADDI_PTR r28, r28, FRAME_INDEX - FRAME_TPNT
}
{
ld r1, r28
ADDLI_PTR r2, sp, FRAME_REGS
}
{
ADDLI_PTR r3, sp, FRAME_RETVAL
jal _dl_call_pltexit
}
{
ADDLI_PTR lr, sp, FRAME_LR
ADDLI_PTR r27, sp, FRAME_RETVAL
}
FOR_EACH_REG(RESTORE)
{
ld lr, lr
ADDLI_PTR sp, sp, \framesize
}
jrp lr
.endif
END (\name)
.endm
dl_resolve _dl_runtime_resolve, 0, FRAME_SIZE_SMALL
#ifndef PROF
dl_resolve _dl_runtime_profile, 1, FRAME_SIZE_LARGE
#endif

36
sysdeps/tile/ffs.c
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@ -1,36 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <limits.h>
#define ffsl __something_else
#include <string.h>
#undef ffs
int
__ffs (int x)
{
return __builtin_ffs (x);
}
weak_alias (__ffs, ffs)
libc_hidden_def (__ffs)
libc_hidden_builtin_def (ffs)
#if ULONG_MAX == UINT_MAX
#undef ffsl
weak_alias (__ffs, ffsl)
#endif

32
sysdeps/tile/ffsll.c
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@ -1,32 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <limits.h>
#define ffsl __something_else
#include <string.h>
#undef ffsll
int
ffsll (long long x)
{
return __builtin_ffsll (x);
}
#if ULONG_MAX > UINT_MAX
#undef ffsl
weak_alias (ffsll, ffsl)
#endif

21
sysdeps/tile/gccframe.h
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@ -1,21 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define FIRST_PSEUDO_REGISTER 64
#include <sysdeps/generic/gccframe.h>

62
sysdeps/tile/jmpbuf-offsets.h
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@ -1,62 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* We don't use most of these symbols; they are here for documentation. */
#define JB_R30 0
#define JB_R31 1
#define JB_R32 2
#define JB_R33 3
#define JB_R34 4
#define JB_R35 5
#define JB_R36 6
#define JB_R37 7
#define JB_R38 8
#define JB_R39 9
#define JB_R40 10
#define JB_R41 11
#define JB_R42 12
#define JB_R43 13
#define JB_R44 14
#define JB_R45 15
#define JB_R46 16
#define JB_R47 17
#define JB_R48 18
#define JB_R49 19
#define JB_R50 20
#define JB_R51 21
#define JB_FP 22 /* r52 */
#define JB_TP 23 /* r53 */
#define JB_SP 24 /* r54 */
#define JB_PC 25 /* normally LR, r55 */
#define JB_ICS 26 /* interrupt critical section bit */
/* We save space for some extra state to accommodate future changes. */
#define JB_LEN 32 /* number of words */
#define JB_SIZE (JB_LEN * REGSIZE)
/* Helper macro used by all the setjmp/longjmp assembly code. */
#define FOR_EACH_CALLEE_SAVED_REG(f) \
.no_require_canonical_reg_names; f(r30); f(r31); \
f(r32); f(r33); f(r34); f(r35); f(r36); f(r37); f(r38); f(r39); \
f(r40); f(r41); f(r42); f(r43); f(r44); f(r45); f(r46); f(r47); \
f(r48); f(r49); f(r50); f(r51); f(r52); f(r53); f(r54); f(r55)
/* Helper for generic ____longjmp_chk(). */
#define JB_FRAME_ADDRESS(buf) \
((void *) (unsigned long) (buf[JB_SP]))

48
sysdeps/tile/jmpbuf-unwind.h
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@ -1,48 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
Based on work contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <setjmp.h>
#include <jmpbuf-offsets.h>
#include <stdint.h>
#include <unwind.h>
#include <sysdep.h>
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
((void *) (address) < (void *) demangle ((jmpbuf)[JB_SP]))
#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
_JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) (long) _Unwind_GetCFA (_context), _adj)
static inline uintptr_t __attribute__ ((unused))
_jmpbuf_sp (__jmp_buf regs)
{
uintptr_t sp = regs[JB_SP];
#ifdef PTR_DEMANGLE
PTR_DEMANGLE (sp);
#endif
return sp;
}
#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
/* We use the normal longjmp for unwinding. */
#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)

40
sysdeps/tile/ldsodefs.h
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@ -1,40 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _TILE_LDSODEFS_H
#define _TILE_LDSODEFS_H 1
#include <elf.h>
struct La_tile_regs;
struct La_tile_retval;
#define ARCH_PLTENTER_MEMBERS \
ElfW(Addr) (*tile_gnu_pltenter) (ElfW(Sym) *, unsigned int, uintptr_t *, \
uintptr_t *, struct La_tile_regs *, \
unsigned int *, const char *, \
long int *)
#define ARCH_PLTEXIT_MEMBERS \
ElfW(Addr) (*tile_gnu_pltexit) (ElfW(Sym) *, unsigned int, uintptr_t *, \
uintptr_t *, const struct La_tile_regs *, \
struct La_tile_retval *, const char *)
#include_next <ldsodefs.h>
#endif

394
sysdeps/tile/libm-test-ulps
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@ -1,394 +0,0 @@
# Begin of automatic generation
# Maximal error of functions:
Function: "acos":
float: 1
ifloat: 1
Function: "acosh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "asin":
float: 1
ifloat: 1
Function: "asinh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "atan":
float: 1
ifloat: 1
Function: "atan2":
float: 1
ifloat: 1
Function: "atanh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "cabs":
double: 1
idouble: 1
Function: Real part of "cacos":
double: 1
float: 2
idouble: 1
ifloat: 2
Function: Imaginary part of "cacos":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Real part of "cacosh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Imaginary part of "cacosh":
double: 1
float: 2
idouble: 1
ifloat: 2
Function: "carg":
float: 1
ifloat: 1
Function: Real part of "casin":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "casin":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Real part of "casinh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Imaginary part of "casinh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "catan":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "catan":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "catanh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "catanh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "cbrt":
double: 3
float: 1
idouble: 3
ifloat: 1
Function: Real part of "ccos":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "ccos":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "ccosh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "ccosh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "cexp":
double: 2
float: 1
idouble: 2
ifloat: 1
Function: Imaginary part of "cexp":
double: 1
float: 2
idouble: 1
ifloat: 2
Function: Real part of "clog":
double: 3
float: 3
idouble: 3
ifloat: 3
Function: Imaginary part of "clog":
float: 1
ifloat: 1
Function: Real part of "clog10":
double: 3
float: 4
idouble: 3
ifloat: 4
Function: Imaginary part of "clog10":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "cos":
float: 1
ifloat: 1
Function: "cosh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "cpow":
double: 2
float: 4
idouble: 2
ifloat: 4
Function: Imaginary part of "cpow":
float: 2
ifloat: 2
Function: Real part of "csin":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "csinh":
float: 1
ifloat: 1
Function: Imaginary part of "csinh":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Real part of "csqrt":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Imaginary part of "csqrt":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: Real part of "ctan":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: Imaginary part of "ctan":
double: 2
float: 1
idouble: 2
ifloat: 1
Function: Real part of "ctanh":
double: 2
float: 1
idouble: 2
ifloat: 1
Function: Imaginary part of "ctanh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "erf":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "erfc":
double: 3
float: 2
idouble: 3
ifloat: 2
Function: "exp":
float: 1
ifloat: 1
Function: "exp10":
double: 2
idouble: 2
Function: "exp2":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "expm1":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "gamma":
double: 4
float: 4
idouble: 4
ifloat: 4
Function: "hypot":
double: 1
idouble: 1
Function: "j0":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "j1":
double: 1
float: 2
idouble: 1
ifloat: 2
Function: "jn":
double: 4
float: 4
idouble: 4
ifloat: 4
Function: "lgamma":
double: 4
float: 4
idouble: 4
ifloat: 4
Function: "log":
float: 1
ifloat: 1
Function: "log10":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "log1p":
double: 1
float: 1
idouble: 1
ifloat: 1
Function: "log2":
double: 2
float: 1
idouble: 2
ifloat: 1
Function: "pow":
float: 3
ifloat: 3
Function: "sin":
float: 1
ifloat: 1
Function: "sincos":
float: 1
ifloat: 1
Function: "sinh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "tan":
float: 1
ifloat: 1
Function: "tanh":
double: 2
float: 2
idouble: 2
ifloat: 2
Function: "tgamma":
double: 5
float: 5
idouble: 5
ifloat: 5
Function: "y0":
double: 2
float: 1
idouble: 2
ifloat: 1
Function: "y1":
double: 3
float: 2
idouble: 3
ifloat: 2
Function: "yn":
double: 3
float: 2
idouble: 3
ifloat: 2
# end of automatic generation

1
sysdeps/tile/libm-test-ulps-name
View File

@ -1 +0,0 @@
Tile

25
sysdeps/tile/machine-gmon.h
View File

@ -1,25 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define _MCOUNT_DECL(from, self) \
void __mcount_internal (u_long from, u_long self)
/* Call __mcount_internal with our the return PC for our caller, and
the return PC our caller will return to. Empty since we use an
assembly stub instead. */
#define MCOUNT

30
sysdeps/tile/math-tests.h
View File

@ -1,30 +0,0 @@
/* Configuration for math tests. Tile version.
Copyright (C) 2013-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* Tile hardware/softfloat does not support exceptions and rounding modes. */
#define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
#define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
#define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
#define EXCEPTION_TESTS_float 0
#define EXCEPTION_TESTS_double 0
#define EXCEPTION_TESTS_long_double 0
/* Tile hardware/softfloat floating-point ops do not preserve NaN payloads. */
#define SNAN_TESTS_PRESERVE_PAYLOAD 0
#include_next <math-tests.h>

77
sysdeps/tile/memchr.c
View File

@ -1,77 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
void *
__memchr (const void *s, int c, size_t n)
{
const uint64_t *last_word_ptr;
const uint64_t *p;
const char *last_byte_ptr;
uintptr_t s_int;
uint64_t goal, before_mask, v, bits;
char *ret;
if (__builtin_expect (n == 0, 0))
{
/* Don't dereference any memory if the array is empty. */
return NULL;
}
/* Get an aligned pointer. */
s_int = (uintptr_t) s;
p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
goal = copy_byte(c);
/* Read the first word, but munge it so that bytes before the array
will not match goal. */
before_mask = MASK (s_int);
v = (*p | before_mask) ^ (goal & before_mask);
/* Compute the address of the last byte. */
last_byte_ptr = (const char *) s + n - 1;
/* Handle possible addition overflow. */
if (__glibc_unlikely ((uintptr_t) last_byte_ptr < (uintptr_t) s))
last_byte_ptr = (const char *) UINTPTR_MAX;
/* Compute the address of the word containing the last byte. */
last_word_ptr = (const uint64_t *) ((uintptr_t) last_byte_ptr & -8);
while ((bits = v1cmpeq (v, goal)) == 0)
{
if (__builtin_expect (p == last_word_ptr, 0))
{
/* We already read the last word in the array, so give up. */
return NULL;
}
v = *++p;
}
/* We found a match, but it might be in a byte past the end
of the array. */
ret = ((char *) p) + (CFZ (bits) >> 3);
return (ret <= last_byte_ptr) ? ret : NULL;
}
weak_alias (__memchr, memchr)
libc_hidden_builtin_def (memchr)

349
sysdeps/tile/memcmp.c
View File

@ -1,349 +0,0 @@
/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if defined HAVE_STRING_H || defined _LIBC
# include <string.h>
#endif
#undef memcmp
#ifndef MEMCMP
# define MEMCMP memcmp
#endif
#ifdef _LIBC
# include <memcopy.h>
# include <endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
# define WORDS_BIGENDIAN
# endif
#else /* Not in the GNU C library. */
# include <sys/types.h>
/* Type to use for aligned memory operations.
This should normally be the biggest type supported by a single load
and store. Must be an unsigned type. */
# define op_t unsigned long int
# define OPSIZ (sizeof(op_t))
/* Threshold value for when to enter the unrolled loops. */
# define OP_T_THRES 16
/* Type to use for unaligned operations. */
typedef unsigned char byte;
#endif /* In the GNU C library. */
/* Provide the appropriate builtins to shift two registers based on
the alignment of a pointer held in a third register, and to reverse
the bytes in a word. */
#define DBLALIGN __insn_dblalign
#define REVBYTES __insn_revbytes
#ifdef WORDS_BIGENDIAN
# define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1)
#else
# define CMP_LT_OR_GT(a, b) (REVBYTES(a) > REVBYTES(b) ? 1 : -1)
#endif
/* BE VERY CAREFUL IF YOU CHANGE THIS CODE! */
/* The strategy of this memcmp is:
1. Compare bytes until one of the block pointers is aligned.
2. Compare using memcmp_common_alignment or
memcmp_not_common_alignment, regarding the alignment of the other
block after the initial byte operations. The maximum number of
full words (of type op_t) are compared in this way.
3. Compare the few remaining bytes. */
static int memcmp_common_alignment (long, long, size_t) __THROW;
/* memcmp_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN `op_t'
objects (not LEN bytes!). Both SRCP1 and SRCP2 should be aligned for
memory operations on `op_t's. */
static int
memcmp_common_alignment (long int srcp1, long int srcp2, size_t len)
{
op_t a0, a1;
op_t b0, b1;
switch (len % 4)
{
default: /* Avoid warning about uninitialized local variables. */
case 2:
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
len += 2;
goto do1;
case 3:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
len += 1;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return 0;
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
goto do3;
case 1:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
/* Fall through. */
}
do
{
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (a1 != b1))
return CMP_LT_OR_GT (a1, b1);
do3:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (a0 != b0))
return CMP_LT_OR_GT (a0, b0);
do2:
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (a1 != b1))
return CMP_LT_OR_GT (a1, b1);
do1:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (a0 != b0))
return CMP_LT_OR_GT (a0, b0);
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
if (__glibc_likely (a1 != b1))
return CMP_LT_OR_GT (a1, b1);
return 0;
}
static int memcmp_not_common_alignment (long, long, size_t) __THROW;
/* memcmp_not_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN
`op_t' objects (not LEN bytes!). SRCP2 should be aligned for memory
operations on `op_t', but SRCP1 *should be unaligned*. */
static int
memcmp_not_common_alignment (long int srcp1, long int srcp2, size_t len)
{
void * srcp1i;
op_t a0, a1, a2, a3;
op_t b0, b1, b2, b3;
op_t x;
/* Calculate how to shift a word read at the memory operation
aligned srcp1 to make it aligned for comparison. */
srcp1i = (void *) srcp1;
/* Make SRCP1 aligned by rounding it down to the beginning of the `op_t'
it points in the middle of. */
srcp1 &= -OPSIZ;
switch (len % 4)
{
default: /* Avoid warning about uninitialized local variables. */
case 2:
a1 = ((op_t *) srcp1)[0];
a2 = ((op_t *) srcp1)[1];
b2 = ((op_t *) srcp2)[0];
srcp1 += 2 * OPSIZ;
srcp2 += 1 * OPSIZ;
len += 2;
goto do1;
case 3:
a0 = ((op_t *) srcp1)[0];
a1 = ((op_t *) srcp1)[1];
b1 = ((op_t *) srcp2)[0];
srcp1 += 2 * OPSIZ;
srcp2 += 1 * OPSIZ;
len += 1;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return 0;
a3 = ((op_t *) srcp1)[0];
a0 = ((op_t *) srcp1)[1];
b0 = ((op_t *) srcp2)[0];
srcp1 += 2 * OPSIZ;
srcp2 += 1 * OPSIZ;
goto do3;
case 1:
a2 = ((op_t *) srcp1)[0];
a3 = ((op_t *) srcp1)[1];
b3 = ((op_t *) srcp2)[0];
srcp1 += 2 * OPSIZ;
srcp2 += 1 * OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
/* Fall through. */
}
do
{
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
x = DBLALIGN (a2, a3, srcp1i);
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (x != b3))
return CMP_LT_OR_GT (x, b3);
do3:
a1 = ((op_t *) srcp1)[0];
b1 = ((op_t *) srcp2)[0];
x = DBLALIGN (a3, a0, srcp1i);
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (x != b0))
return CMP_LT_OR_GT (x, b0);
do2:
a2 = ((op_t *) srcp1)[0];
b2 = ((op_t *) srcp2)[0];
x = DBLALIGN (a0, a1, srcp1i);
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (x != b1))
return CMP_LT_OR_GT (x, b1);
do1:
a3 = ((op_t *) srcp1)[0];
b3 = ((op_t *) srcp2)[0];
x = DBLALIGN (a1, a2, srcp1i);
srcp1 += OPSIZ;
srcp2 += OPSIZ;
if (__glibc_likely (x != b2))
return CMP_LT_OR_GT (x, b2);
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
x = DBLALIGN (a2, a3, srcp1i);
if (__glibc_likely (x != b3))
return CMP_LT_OR_GT (x, b3);
return 0;
}
int
MEMCMP (const void *s1, const void *s2, size_t len)
{
op_t a0;
op_t b0;
long int srcp1 = (long int) s1;
long int srcp2 = (long int) s2;
int res;
if (len >= OP_T_THRES)
{
/* There are at least some bytes to compare. No need to test
for LEN == 0 in this alignment loop. */
while (srcp2 % OPSIZ != 0)
{
a0 = ((byte *) srcp1)[0];
b0 = ((byte *) srcp2)[0];
srcp1 += 1;
srcp2 += 1;
res = a0 - b0;
if (__glibc_likely (res != 0))
return res;
len -= 1;
}
/* SRCP2 is now aligned for memory operations on `op_t'.
SRCP1 alignment determines if we can do a simple,
aligned compare or need to shuffle bits. */
if (srcp1 % OPSIZ == 0)
res = memcmp_common_alignment (srcp1, srcp2, len / OPSIZ);
else
res = memcmp_not_common_alignment (srcp1, srcp2, len / OPSIZ);
if (res != 0)
return res;
/* Number of bytes remaining in the interval [0..OPSIZ-1]. */
srcp1 += len & -OPSIZ;
srcp2 += len & -OPSIZ;
len %= OPSIZ;
}
/* There are just a few bytes to compare. Use byte memory operations. */
while (len != 0)
{
a0 = ((byte *) srcp1)[0];
b0 = ((byte *) srcp2)[0];
srcp1 += 1;
srcp2 += 1;
res = a0 - b0;
if (__glibc_likely (res != 0))
return res;
len -= 1;
}
return 0;
}
libc_hidden_builtin_def(memcmp)
#ifdef weak_alias
# undef bcmp
weak_alias (memcmp, bcmp)
#endif

31
sysdeps/tile/memcopy.h
View File

@ -1,31 +0,0 @@
/* memcopy.h -- definitions for memory copy functions. Tile version.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdeps/generic/memcopy.h>
#include <bits/wordsize.h>
/* The tilegx implementation of memcpy is safe to use for memmove. */
#undef MEMCPY_OK_FOR_FWD_MEMMOVE
#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
/* Support more efficient copying on tilegx32, which supports
long long as a native 64-bit type. */
#if __WORDSIZE == 32
# undef op_t
# define op_t unsigned long long int
#endif

272
sysdeps/tile/memcpy.c
View File

@ -1,272 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <memcopy.h>
#include <arch/chip.h>
/* How many cache lines ahead should we prefetch? */
#define PREFETCH_LINES_AHEAD 3
void * inhibit_loop_to_libcall
__memcpy (void *__restrict dstv, const void *__restrict srcv, size_t n)
{
char *__restrict dst1 = (char *) dstv;
const char *__restrict src1 = (const char *) srcv;
const char *__restrict src1_end;
const char *__restrict prefetch;
op_t *__restrict dst8; /* 8-byte pointer to destination memory. */
op_t final; /* Final bytes to write to trailing word, if any */
long i;
if (n < 16)
{
for (; n; n--)
*dst1++ = *src1++;
return dstv;
}
/* Locate the end of source memory we will copy. Don't prefetch
past this. */
src1_end = src1 + n - 1;
/* Prefetch ahead a few cache lines, but not past the end. */
prefetch = src1;
for (i = 0; i < PREFETCH_LINES_AHEAD; i++)
{
__insn_prefetch (prefetch);
prefetch += CHIP_L2_LINE_SIZE ();
prefetch = (prefetch < src1_end) ? prefetch : src1;
}
/* Copy bytes until dst is word-aligned. */
for (; (uintptr_t) dst1 & (sizeof (op_t) - 1); n--)
*dst1++ = *src1++;
/* 8-byte pointer to destination memory. */
dst8 = (op_t *) dst1;
if (__builtin_expect ((uintptr_t) src1 & (sizeof (op_t) - 1), 0))
{
/* Misaligned copy. Use glibc's _wordcopy_fwd_dest_aligned, but
inline it to avoid prologue/epilogue. TODO: Consider
prefetching and using wh64 as well. */
void * srci;
op_t a0, a1, a2, a3;
long int dstp = (long int) dst1;
long int srcp = (long int) src1;
long int len = n / OPSIZ;
/* Save the initial source pointer so we know the number of
bytes to shift for merging two unaligned results. */
srci = (void *) srcp;
/* Make SRCP aligned by rounding it down to the beginning of the
`op_t' it points in the middle of. */
srcp &= -OPSIZ;
switch (len % 4)
{
case 2:
a1 = ((op_t *) srcp)[0];
a2 = ((op_t *) srcp)[1];
len += 2;
srcp += 2 * OPSIZ;
goto do1;
case 3:
a0 = ((op_t *) srcp)[0];
a1 = ((op_t *) srcp)[1];
len += 1;
srcp += 2 * OPSIZ;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return dstv;
a3 = ((op_t *) srcp)[0];
a0 = ((op_t *) srcp)[1];
len += 0;
srcp += 2 * OPSIZ;
goto do3;
case 1:
a2 = ((op_t *) srcp)[0];
a3 = ((op_t *) srcp)[1];
srcp += 2 * OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
goto do4; /* No-op. */
}
do
{
do4:
a0 = ((op_t *) srcp)[0];
a2 = __insn_dblalign (a2, a3, srci);
((op_t *) dstp)[0] = a2;
srcp += OPSIZ;
dstp += OPSIZ;
do3:
a1 = ((op_t *) srcp)[0];
a3 = __insn_dblalign (a3, a0, srci);
((op_t *) dstp)[0] = a3;
srcp += OPSIZ;
dstp += OPSIZ;
do2:
a2 = ((op_t *) srcp)[0];
a0 = __insn_dblalign (a0, a1, srci);
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
do1:
a3 = ((op_t *) srcp)[0];
a1 = __insn_dblalign (a1, a2, srci);
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
((op_t *) dstp)[0] = __insn_dblalign (a2, a3, srci);
n = n % OPSIZ;
if (n == 0)
return dstv;
a0 = ((const char *) srcp <= src1_end) ? ((op_t *) srcp)[0] : 0;
final = __insn_dblalign (a3, a0, srci);
dst8 = (op_t *)(dstp + OPSIZ);
}
else
{
/* Aligned copy. */
const op_t *__restrict src8 = (const op_t *) src1;
/* src8 and dst8 are both word-aligned. */
if (n >= CHIP_L2_LINE_SIZE ())
{
/* Copy until 'dst' is cache-line-aligned. */
for (; (uintptr_t) dst8 & (CHIP_L2_LINE_SIZE () - 1);
n -= sizeof (op_t))
*dst8++ = *src8++;
for (; n >= CHIP_L2_LINE_SIZE ();)
{
op_t tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
/* Prefetch and advance to next line to prefetch, but
don't go past the end. */
__insn_prefetch (prefetch);
prefetch += CHIP_L2_LINE_SIZE ();
prefetch = (prefetch < src1_end) ? prefetch :
(const char *) src8;
/* Do all the loads before wh64. This is necessary if
[src8, src8+7] and [dst8, dst8+7] share the same
cache line and dst8 <= src8, as can be the case when
called from memmove, or with code tested on x86 whose
memcpy always works with forward copies. */
tmp0 = *src8++;
tmp1 = *src8++;
tmp2 = *src8++;
tmp3 = *src8++;
tmp4 = *src8++;
tmp5 = *src8++;
tmp6 = *src8++;
tmp7 = *src8++;
__insn_wh64 (dst8);
*dst8++ = tmp0;
*dst8++ = tmp1;
*dst8++ = tmp2;
*dst8++ = tmp3;
*dst8++ = tmp4;
*dst8++ = tmp5;
*dst8++ = tmp6;
*dst8++ = tmp7;
n -= 64;
}
#if CHIP_L2_LINE_SIZE() != 64
# error "Fix code that assumes particular L2 cache line size."
#endif
}
for (; n >= sizeof (op_t); n -= sizeof (op_t))
*dst8++ = *src8++;
if (__builtin_expect (n == 0, 1))
return dstv;
final = *src8;
}
/* n != 0 if we get here. Write out any trailing bytes. */
dst1 = (char *) dst8;
#ifndef __BIG_ENDIAN__
if (n & 4)
{
*(uint32_t *) dst1 = final;
dst1 += 4;
final >>= 32;
n &= 3;
}
if (n & 2)
{
*(uint16_t *) dst1 = final;
dst1 += 2;
final >>= 16;
n &= 1;
}
if (n)
*(uint8_t *) dst1 = final;
#else
if (n & 4)
{
*(uint32_t *) dst1 = final >> 32;
dst1 += 4;
}
else
{
final >>= 32;
}
if (n & 2)
{
*(uint16_t *) dst1 = final >> 16;
dst1 += 2;
}
else
{
final >>= 16;
}
if (n & 1)
*(uint8_t *) dst1 = final >> 8;
#endif
return dstv;
}
weak_alias (__memcpy, memcpy)
libc_hidden_builtin_def (memcpy)

151
sysdeps/tile/memset.c
View File

@ -1,151 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <arch/chip.h>
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
void * inhibit_loop_to_libcall
__memset (void *s, int c, size_t n)
{
uint64_t *out64;
int n64, to_align64;
uint64_t v64;
uint8_t *out8 = s;
/* Experimentation shows that a trivial tight loop is a win up until
around a size of 20, where writing a word at a time starts to win. */
#define BYTE_CUTOFF 20
#if BYTE_CUTOFF < 7
/* This must be at least at least this big, or some code later
on doesn't work. */
# error "BYTE_CUTOFF is too small."
#endif
if (n < BYTE_CUTOFF)
{
/* Strangely, this turns out to be the tightest way to write
this loop. */
if (n != 0)
{
do
{
/* Strangely, combining these into one line performs worse. */
*out8 = c;
out8++;
}
while (--n != 0);
}
return s;
}
/* Align 'out8'. We know n >= 7 so this won't write past the end. */
while (((uintptr_t) out8 & 7) != 0)
{
*out8++ = c;
--n;
}
/* Align 'n'. */
while (n & 7)
out8[--n] = c;
out64 = (uint64_t *) out8;
n64 = n >> 3;
/* Tile input byte out to 64 bits. */
v64 = copy_byte(c);
/* This must be at least 8 or the following loop doesn't work. */
#define CACHE_LINE_SIZE_IN_DOUBLEWORDS (CHIP_L2_LINE_SIZE() / 8)
/* Determine how many words we need to emit before the 'out32'
pointer becomes aligned modulo the cache line size. */
to_align64 = (-((uintptr_t) out64 >> 3)) &
(CACHE_LINE_SIZE_IN_DOUBLEWORDS - 1);
/* Only bother aligning and using wh64 if there is at least
one full cache line to process. This check also prevents
overrunning the end of the buffer with alignment words. */
if (to_align64 <= n64 - CACHE_LINE_SIZE_IN_DOUBLEWORDS)
{
int lines_left;
/* Align out64 mod the cache line size so we can use wh64. */
n64 -= to_align64;
for (; to_align64 != 0; to_align64--)
{
*out64 = v64;
out64++;
}
/* Use unsigned divide to turn this into a right shift. */
lines_left = (unsigned) n64 / CACHE_LINE_SIZE_IN_DOUBLEWORDS;
do
{
/* Only wh64 a few lines at a time, so we don't exceed the
maximum number of victim lines. */
int x = ((lines_left < CHIP_MAX_OUTSTANDING_VICTIMS ()) ? lines_left
: CHIP_MAX_OUTSTANDING_VICTIMS ());
uint64_t *wh = out64;
int i = x;
int j;
lines_left -= x;
do
{
__insn_wh64 (wh);
wh += CACHE_LINE_SIZE_IN_DOUBLEWORDS;
}
while (--i);
for (j = x * (CACHE_LINE_SIZE_IN_DOUBLEWORDS / 4); j != 0; j--)
{
*out64++ = v64;
*out64++ = v64;
*out64++ = v64;
*out64++ = v64;
}
}
while (lines_left != 0);
/* We processed all full lines above, so only this many
words remain to be processed. */
n64 &= CACHE_LINE_SIZE_IN_DOUBLEWORDS - 1;
}
/* Now handle any leftover values. */
if (n64 != 0)
{
do
{
*out64 = v64;
out64++;
}
while (--n64 != 0);
}
return s;
}
weak_alias (__memset, memset)
libc_hidden_builtin_def (memset)

31
sysdeps/tile/memusage.h
View File

@ -1,31 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <stdint.h>
#include <arch/spr_def.h>
#define GETSP() ({ register uintptr_t stack_ptr asm ("sp"); stack_ptr; })
#define GETTIME(low,high) \
{ \
uint64_t cycles = __insn_mfspr (SPR_CYCLE); \
low = cycles & 0xffffffff; \
high = cycles >> 32; \
}
#include <sysdeps/generic/memusage.h>

20
sysdeps/tile/nptl/Makefile
View File

@ -1,20 +0,0 @@
# Copyright (C) 2002-2018 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library. If not, see
# <http://www.gnu.org/licenses/>.
ifeq ($(subdir),csu)
gen-as-const-headers += tcb-offsets.sym
endif

81
sysdeps/tile/nptl/bits/pthreadtypes-arch.h
View File

@ -1,81 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
#include <bits/wordsize.h>
#if __WORDSIZE == 64
# define __SIZEOF_PTHREAD_MUTEX_T 40
# define __SIZEOF_PTHREAD_ATTR_T 56
# define __SIZEOF_PTHREAD_RWLOCK_T 56
# define __SIZEOF_PTHREAD_BARRIER_T 32
#else
# define __SIZEOF_PTHREAD_MUTEX_T 24
# define __SIZEOF_PTHREAD_ATTR_T 36
# define __SIZEOF_PTHREAD_RWLOCK_T 32
# define __SIZEOF_PTHREAD_BARRIER_T 20
#endif
#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
#define __SIZEOF_PTHREAD_COND_T 48
#define __SIZEOF_PTHREAD_CONDATTR_T 4
#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
/* Data structure for mutex handling. */
#define __PTHREAD_COMPAT_PADDING_MID
#define __PTHREAD_COMPAT_PADDING_END
#define __PTHREAD_MUTEX_LOCK_ELISION 0
#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND (__WORDSIZE != 64)
#define __PTHREAD_MUTEX_USE_UNION (__WORDSIZE != 64)
#define __LOCK_ALIGNMENT
#define __ONCE_ALIGNMENT
struct __pthread_rwlock_arch_t
{
unsigned int __readers;
unsigned int __writers;
unsigned int __wrphase_futex;
unsigned int __writers_futex;
unsigned int __pad3;
unsigned int __pad4;
#if __WORDSIZE == 64
int __cur_writer;
int __shared;
unsigned long int __pad1;
unsigned long int __pad2;
/* FLAGS must stay at this position in the structure to maintain
binary compatibility. */
unsigned int __flags;
#else
/* FLAGS must stay at this position in the structure to maintain
binary compatibility. */
unsigned char __flags;
unsigned char __shared;
unsigned char __pad1;
unsigned char __pad2;
int __cur_writer;
#endif
};
#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
#endif /* bits/pthreadtypes.h */

41
sysdeps/tile/nptl/bits/semaphore.h
View File

@ -1,41 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SEMAPHORE_H
# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
#endif
#include <bits/wordsize.h>
#if __WORDSIZE == 64
# define __SIZEOF_SEM_T 32
#else
# define __SIZEOF_SEM_T 16
#endif
/* Value returned if `sem_open' failed. */
#define SEM_FAILED ((sem_t *) 0)
typedef union
{
char __size[__SIZEOF_SEM_T];
long int __align;
} sem_t;

15
sysdeps/tile/nptl/pthread-offsets.h
View File

@ -1,15 +0,0 @@
#include <bits/wordsize.h>
#if __WORDSIZE == 64
# define __PTHREAD_MUTEX_NUSERS_OFFSET 12
# define __PTHREAD_MUTEX_KIND_OFFSET 16
# define __PTHREAD_MUTEX_SPINS_OFFSET 20
# define __PTHREAD_MUTEX_ELISION_OFFSET 22
# define __PTHREAD_MUTEX_LIST_OFFSET 24
#else
# define __PTHREAD_MUTEX_NUSERS_OFFSET 16
# define __PTHREAD_MUTEX_KIND_OFFSET 12
# define __PTHREAD_MUTEX_SPINS_OFFSET 20
# define __PTHREAD_MUTEX_ELISION_OFFSET 22
# define __PTHREAD_MUTEX_LIST_OFFSET 20
#endif

50
sysdeps/tile/nptl/pthread_spin_lock.c
View File

@ -1,50 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include "pthreadP.h"
#include <arch/spr_def.h>
#include <atomic.h>
/* Bound point for bounded exponential backoff */
#define BACKOFF_MAX 2048
/* Initial cycle delay for exponential backoff */
#define BACKOFF_START 32
/* Use cmpexch() after the initial fast-path exch to avoid
invalidating the cache line of the lock holder. */
#define TNS(p) atomic_exchange_acq((p), 1)
#define CMPTNS(p) atomic_compare_and_exchange_val_acq((p), 1, 0)
int
pthread_spin_lock (pthread_spinlock_t *lock)
{
if (__builtin_expect (TNS (lock) != 0, 0))
{
unsigned int backoff = BACKOFF_START;
while (CMPTNS (lock) != 0)
{
unsigned int start = __insn_mfspr (SPR_CYCLE);
while (__insn_mfspr (SPR_CYCLE) - start < backoff)
;
if (backoff < BACKOFF_MAX)
backoff *= 2;
}
}
return 0;
}

28
sysdeps/tile/nptl/pthread_spin_trylock.c
View File

@ -1,28 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include "pthreadP.h"
#include <errno.h>
#define TNS(p) __insn_exch4((p), 1)
int
pthread_spin_trylock (pthread_spinlock_t *lock)
{
return (TNS (lock) == 0) ? 0 : EBUSY;
}

28
sysdeps/tile/nptl/pthread_spin_unlock.c
View File

@ -1,28 +0,0 @@
/* pthread_spin_unlock -- unlock a spin lock. Tile version.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include "pthreadP.h"
#include <atomic.h>
int
pthread_spin_unlock (pthread_spinlock_t *lock)
{
/* Use exchange() to bypass the write buffer. */
atomic_exchange_rel (lock, 0);
return 0;
}

36
sysdeps/tile/nptl/pthreaddef.h
View File

@ -1,36 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <string.h>
/* Default stack size. */
#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
/* Required stack pointer alignment at beginning. */
#define STACK_ALIGN 16
/* Minimal stack size after allocating thread descriptor and guard size. */
#define MINIMAL_REST_STACK 2048
/* Alignment requirement for TCB. */
#define TCB_ALIGNMENT 16
/* Location of current stack frame. */
#define CURRENT_STACK_FRAME __builtin_frame_address (0)

16
sysdeps/tile/nptl/tcb-offsets.sym
View File

@ -1,16 +0,0 @@
#define SHARED /* needed to get struct rtld_global from <ldsodefs.h> */
#include <sysdep.h>
#include <tls.h>
#include <ldsodefs.h>
--
-- Abuse tls.h macros to derive offsets relative to the thread register.
#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
TID_OFFSET thread_offsetof (tid)
POINTER_GUARD (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
FEEDBACK_DATA_OFFSET (offsetof (tcbhead_t, feedback_data) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
DTV_OFFSET (offsetof (tcbhead_t, dtv) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
TLS_GENERATION_OFFSET offsetof (struct rtld_global, _dl_tls_generation)

185
sysdeps/tile/nptl/tls.h
View File

@ -1,185 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _TLS_H
#define _TLS_H 1
# include <dl-sysdep.h>
#ifndef __ASSEMBLER__
# include <stdbool.h>
# include <stddef.h>
# include <stdint.h>
# include <dl-dtv.h>
#else /* __ASSEMBLER__ */
# include <tcb-offsets.h>
#endif /* __ASSEMBLER__ */
#ifndef __ASSEMBLER__
/* Get system call information. */
# include <sysdep.h>
/* The TP points to the start of the thread blocks. */
# define TLS_DTV_AT_TP 1
# define TLS_TCB_AT_TP 0
/* We use the multiple_threads field in the pthread struct */
#define TLS_MULTIPLE_THREADS_IN_TCB 1
/* Get the thread descriptor definition. */
# include <nptl/descr.h>
/* The stack_guard is accessed directly by GCC -fstack-protector code,
so it is a part of public ABI. The dtv and pointer_guard fields
are private. */
typedef struct
{
void *feedback_data;
uintptr_t pointer_guard;
uintptr_t stack_guard;
dtv_t *dtv;
} tcbhead_t;
/* This is the size of the initial TCB. Because our TCB is before the thread
pointer, we don't need this. */
# define TLS_INIT_TCB_SIZE 0
/* Alignment requirements for the initial TCB. */
# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
/* This is the size of the TCB. Because our TCB is before the thread
pointer, we don't need this. */
# define TLS_TCB_SIZE 0
/* Alignment requirements for the TCB. */
# define TLS_TCB_ALIGN __alignof__ (struct pthread)
/* This is the size we need before TCB - actually, it includes the TCB. */
# define TLS_PRE_TCB_SIZE \
(sizeof (struct pthread) \
+ ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
/* Return the thread descriptor (tp) for the current thread. */
register void *__thread_pointer asm ("tp");
/* The thread pointer (in hardware register tp) points to the end of
the TCB. The pthread_descr structure is immediately in front of the TCB. */
# define TLS_TCB_OFFSET 0
/* Install the dtv pointer. The pointer passed is to the element with
index -1 which contain the length. */
# define INSTALL_DTV(tcbp, dtvp) \
(((tcbhead_t *) (tcbp))[-1].dtv = (dtvp) + 1)
/* Install new dtv for current thread. */
# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv))
/* Return dtv of given thread descriptor. */
# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))[-1].dtv)
/* Code to initially initialize the thread pointer (tp). */
# define TLS_INIT_TP(tcbp) \
(__thread_pointer = (char *)(tcbp) + TLS_TCB_OFFSET, NULL)
/* Value passed to 'clone' for initialization of the thread register. */
# define TLS_DEFINE_INIT_TP(tp, pd) \
void *tp = (void *) (pd) + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE
/* Return the address of the dtv for the current thread. */
# define THREAD_DTV() \
(((tcbhead_t *) (__thread_pointer - TLS_TCB_OFFSET))[-1].dtv)
/* Return the thread descriptor for the current thread. */
# define THREAD_SELF \
((struct pthread *) (__thread_pointer \
- TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
/* Magic for libthread_db to know how to do THREAD_SELF. */
# define DB_THREAD_SELF \
REGISTER (64, 64, REG_TP * 8, - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
/* Read member of the thread descriptor directly. */
# define THREAD_GETMEM(descr, member) (descr->member)
/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
# define THREAD_GETMEM_NC(descr, member, idx) \
(descr->member[idx])
/* Set member of the thread descriptor directly. */
# define THREAD_SETMEM(descr, member, value) \
(descr->member = (value))
/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
# define THREAD_SETMEM_NC(descr, member, idx, value) \
(descr->member[idx] = (value))
/* Set the stack guard field in TCB head. */
# define THREAD_SET_STACK_GUARD(value) \
(((tcbhead_t *) ((char *) __thread_pointer \
- TLS_TCB_OFFSET))[-1].stack_guard = (value))
# define THREAD_COPY_STACK_GUARD(descr) \
(((tcbhead_t *) ((char *) (descr) \
+ TLS_PRE_TCB_SIZE))[-1].stack_guard \
= ((tcbhead_t *) ((char *) __thread_pointer \
- TLS_TCB_OFFSET))[-1].stack_guard)
/* Set the pointer guard field in TCB head. */
# define THREAD_GET_POINTER_GUARD() \
(((tcbhead_t *) ((char *) __thread_pointer \
- TLS_TCB_OFFSET))[-1].pointer_guard)
# define THREAD_SET_POINTER_GUARD(value) \
(THREAD_GET_POINTER_GUARD () = (value))
# define THREAD_COPY_POINTER_GUARD(descr) \
(((tcbhead_t *) ((char *) (descr) \
+ TLS_PRE_TCB_SIZE))[-1].pointer_guard \
= THREAD_GET_POINTER_GUARD())
/* l_tls_offset == 0 is perfectly valid on Tile, so we have to use some
different value to mean unset l_tls_offset. */
# define NO_TLS_OFFSET -1
/* Get and set the global scope generation counter in struct pthread. */
#define THREAD_GSCOPE_IN_TCB 1
#define THREAD_GSCOPE_FLAG_UNUSED 0
#define THREAD_GSCOPE_FLAG_USED 1
#define THREAD_GSCOPE_FLAG_WAIT 2
#define THREAD_GSCOPE_RESET_FLAG() \
do \
{ int __res \
= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
THREAD_GSCOPE_FLAG_UNUSED); \
if (__res == THREAD_GSCOPE_FLAG_WAIT) \
lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
} \
while (0)
#define THREAD_GSCOPE_SET_FLAG() \
do \
{ \
THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
atomic_write_barrier (); \
} \
while (0)
#define THREAD_GSCOPE_WAIT() \
GL(dl_wait_lookup_done) ()
#endif /* __ASSEMBLER__ */
#endif /* tls.h */

10
sysdeps/tile/preconfigure
View File

@ -1,10 +0,0 @@
# This is a -*- sh -*-
case "$machine" in
tilegx*)
base_machine=tile
if $CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep -q __LP64__; then
machine=tile/tilegx64
else
machine=tile/tilegx32
fi ;;
esac

45
sysdeps/tile/rawmemchr.c
View File

@ -1,45 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
void *
__rawmemchr (const void *s, int c)
{
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
const uint64_t goal = copy_byte(c);
/* Read the first word, but munge it so that bytes before the array
will not match goal. */
const uint64_t before_mask = MASK (s_int);
uint64_t v = (*p | before_mask) ^ (goal & before_mask);
uint64_t bits;
while ((bits = v1cmpeq (v, goal)) == 0)
v = *++p;
return ((char *) p) + (CFZ (bits) >> 3);
}
libc_hidden_def (__rawmemchr)
weak_alias (__rawmemchr, rawmemchr)

47
sysdeps/tile/setjmp.S
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@ -1,47 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
.text
/* Keep traditional entry points in with sigsetjmp(). */
ENTRY(setjmp)
{ movei r1, 1; j 1f }
END(setjmp)
ENTRY(_setjmp)
{ movei r1, 0; j 1f }
END(_setjmp)
libc_hidden_def (_setjmp)
ENTRY(__sigsetjmp)
FEEDBACK_ENTER(__sigsetjmp)
1:
move r2, r0
#define SAVE(r) { st r2, r ; ADDI_PTR r2, r2, REGSIZE }
FOR_EACH_CALLEE_SAVED_REG(SAVE)
mfspr r3, INTERRUPT_CRITICAL_SECTION
st r2, r3
j plt(__sigjmp_save)
jrp lr /* Keep the backtracer happy. */
END(__sigsetjmp)
hidden_def (__sigsetjmp)

99
sysdeps/tile/sfp-machine.h
View File

@ -1,99 +0,0 @@
/* Machine-dependent software floating-point definitions, tile version.
Copyright (C) 2013-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <bits/wordsize.h>
#define _FP_W_TYPE_SIZE __WORDSIZE
#define _FP_W_TYPE unsigned long
#define _FP_WS_TYPE signed long
#define _FP_I_TYPE long
#if _FP_W_TYPE_SIZE == 64
#define _FP_MUL_MEAT_S(R,X,Y) \
_FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
#define _FP_MUL_MEAT_D(R,X,Y) \
_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_S(R,X,Y) \
_FP_MUL_MEAT_DW_1_imm(_FP_WFRACBITS_S,R,X,Y)
#define _FP_MUL_MEAT_DW_D(R,X,Y) \
_FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
_FP_MUL_MEAT_DW_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
#define _FP_NANFRAC_S _FP_QNANBIT_S
#define _FP_NANFRAC_D _FP_QNANBIT_D
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
#else /* _FP_W_TYPE_SIZE == 32 */
#define _FP_MUL_MEAT_S(R,X,Y) \
_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_S(R,X,Y) \
_FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_D(R,X,Y) \
_FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
_FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
#define _FP_NANFRAC_S _FP_QNANBIT_S
#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
#endif
#define _FP_NANSIGN_S 1
#define _FP_NANSIGN_D 1
#define _FP_NANSIGN_Q 1
#define _FP_KEEPNANFRACP 1
#define _FP_QNANNEGATEDP 0
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do { \
if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
{ \
R##_s = Y##_s; \
_FP_FRAC_COPY_##wc(R,Y); \
} \
else \
{ \
R##_s = X##_s; \
_FP_FRAC_COPY_##wc(R,X); \
} \
R##_c = FP_CLS_NAN; \
} while (0)
#define _FP_TININESS_AFTER_ROUNDING 0

49
sysdeps/tile/sotruss-lib.c
View File

@ -1,49 +0,0 @@
/* Override generic sotruss-lib.c to define actual functions for tile.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define HAVE_ARCH_PLTENTER
#define HAVE_ARCH_PLTEXIT
#include <elf/sotruss-lib.c>
ElfW(Addr)
la_tile_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)),
unsigned int ndx __attribute__ ((unused)),
uintptr_t *refcook, uintptr_t *defcook,
La_tile_regs *regs, unsigned int *flags,
const char *symname, long int *framesizep)
{
print_enter (refcook, defcook, symname,
regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2],
*flags);
/* No need to copy anything, we will not need the parameters in any case. */
*framesizep = 0;
return sym->st_value;
}
unsigned int
la_tile_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, const struct La_tile_regs *inregs,
struct La_tile_retval *outregs, const char *symname)
{
print_exit (refcook, defcook, symname, outregs->lrv_reg[0]);
return 0;
}

13
sysdeps/tile/stackguard-macros.h
View File

@ -1,13 +0,0 @@
#include <bits/wordsize.h>
#if __WORDSIZE == 64
# define STACK_CHK_GUARD \
({ uintptr_t x; asm ("addi %0, tp, -16; ld %0, %0" : "=r" (x)); x; })
# define POINTER_CHK_GUARD \
({ uintptr_t x; asm ("addi %0, tp, -24; ld %0, %0" : "=r" (x)); x; })
#else
# define STACK_CHK_GUARD \
({ uintptr_t x; asm ("addi %0, tp, -8; ld4s %0, %0" : "=r" (x)); x; })
# define POINTER_CHK_GUARD \
({ uintptr_t x; asm ("addi %0, tp, -12; ld4s %0, %0" : "=r" (x)); x; })
#endif

48
sysdeps/tile/stackinfo.h
View File

@ -1,48 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On tile the stack grows down. */
#define _STACK_GROWS_DOWN 1
/* Default to a non-executable stack. */
#define DEFAULT_STACK_PERMS (PF_R|PF_W)
/* Access to the stack pointer. The macros are used in alloca_account
for which they need to act as barriers as well, hence the additional
(unnecessary) parameters. */
#define stackinfo_get_sp() \
({ void *p__; asm volatile ("move %0, sp" : "=r" (p__)); p__; })
#if __WORDSIZE == 32
#define __stackinfo_sub "subx"
#else
#define __stackinfo_sub "sub"
#endif
#define stackinfo_sub_sp(ptr) \
({ ptrdiff_t d__; \
asm volatile (__stackinfo_sub " %0, %0, sp" : "=r" (d__) : "0" (ptr)); \
d__; })
#endif /* stackinfo.h */

184
sysdeps/tile/start.S
View File

@ -1,184 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* This is the canonical entry point, usually the first thing in the text
segment. The ELF standard tells us that the stack is set up like this on
entry (the left side is the offset from "sp"), in units of
__SIZEOF_POINTER__ entries:
+0 argc
+1 argv[0]
...
+(argc+1) NULL
+(argc+2) envp[0]
...
NULL
... ElfInfo
The ElfInfo is pairs of key/value long words following the envp
pointers and terminated by a zero-valued key.
Although not mandated by the standard, it happens to be the case
that we store the actual argv and envp strings immediately after
the ElfInfo data on the stack.
On entry r0 points to the shared library termination function, or 0
if there isn't one.
*/
#include <features.h>
#include <sysdep.h>
#include <arch/abi.h>
/* Just create no-ops if we don't support PC-relative PLT relocations. */
#ifdef NO_PLT_PCREL
# define hw2_last_plt(x) 0
# define hw1_plt(x) 0
# define hw0_plt(x) 0
#endif
.text
.global _start
.type _start,@function
.align 8
_start:
/* Linux starts us with sp pointing at the conventional Elf layout,
but we need to allow two "caller" words for our ABI convention. */
{
/* Load argc (stored as a "long", equivalent to a pointer type). */
LD_PTR r1, sp
/* Save incoming 'sp', which points to the Elf argument block. */
move r52, sp
}
{
/* Allocate stack frame callee space for __libc_start_main. */
ADDI_PTR r12, sp, -(2 * REGSIZE)
}
{
/* Get our PC. */
lnk r13
/* sp is not necessarily properly aligned on startup because
of the way ld.so pops off leading argv elements. So align it. */
andi sp, r12, -8
}
.Lmy_pc:
{
/* Pass the address of the shared library termination function. */
move r5, r0
/* Compute location where __libc_start_main's caller is supposed to
store its frame pointer. */
ADDI_PTR r12, sp, REGSIZE
/* Zero out callee space for return address. Unnecessary but free.
This is just paranoia to help backtracing not go awry. */
st sp, zero
}
{
/* Zero out our frame pointer for __libc_start_main. */
st r12, zero
/* Zero out lr to make __libc_start_main the end of backtrace. */
move lr, zero
/* Compute a pointer to argv. envp will be determined
later in __libc_start_main. We set up the first argument
(the address of main) below. */
ADDI_PTR r2, r52, __SIZEOF_POINTER__
}
{
/* Pass the highest stack address to user code. */
ADDI_PTR r6, sp, (2 * REGSIZE)
/* Pass address of main() in r0, and of our own entry
points to .fini and .init in r3 and r4. */
moveli r0, hw2_last(main - .Lmy_pc)
}
{
shl16insli r0, r0, hw1(main - .Lmy_pc)
moveli r3, hw2_last(__libc_csu_init - .Lmy_pc)
}
{
shl16insli r0, r0, hw0(main - .Lmy_pc)
shl16insli r3, r3, hw1(__libc_csu_init - .Lmy_pc)
}
{
ADD_PTR r0, r0, r13
shl16insli r3, r3, hw0(__libc_csu_init - .Lmy_pc)
}
{
moveli r12, hw2_last_plt(__libc_start_main - .Lmy_pc)
ADD_PTR r3, r3, r13
}
{
shl16insli r12, r12, hw1_plt(__libc_start_main - .Lmy_pc)
moveli r4, hw2_last(__libc_csu_fini - .Lmy_pc)
}
{
shl16insli r12, r12, hw0_plt(__libc_start_main - .Lmy_pc)
shl16insli r4, r4, hw1(__libc_csu_fini - .Lmy_pc)
}
{
ADD_PTR r12, r12, r13
shl16insli r4, r4, hw0(__libc_csu_fini - .Lmy_pc)
}
{
ADD_PTR r4, r4, r13
#ifdef NO_PLT_PCREL
j plt(__libc_start_main)
#else
jr r12
#endif
}
{
/* Tell backtracer to give up (_start has no caller). */
info INFO_OP_CANNOT_BACKTRACE
}
.size _start, .-_start
/* Define a symbol for the first piece of initialized data. */
.data
.global __data_start
.align 8
__data_start:
.long 0
.weak data_start
data_start = __data_start

53
sysdeps/tile/strcasestr.c
View File

@ -1,53 +0,0 @@
/* Return the offset of one string within another.
Copyright (C) 1994-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
/* Specification. */
#include <string.h>
#include <ctype.h>
#include <stdbool.h>
#include <strings.h>
#define USE_AS_STRCASESTR
#define STRSTR __strcasestr
#define STRSTR2 strcasestr2
#define STRCHR strcasechr
#define STRSTR_SCAN strcasestr_scan
#undef strcasestr
#undef __strcasestr
#ifndef STRCASESTR
#define STRCASESTR __strcasestr
#endif
#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
#define CANON_ELEMENT(c) TOLOWER (c)
#define CMP_FUNC(p1, p2, l) \
__strncasecmp ((const char *) (p1), (const char *) (p2), l)
#include "strstr.c"
#ifndef NO_ALIAS
weak_alias (__strcasestr, strcasestr)
#endif

67
sysdeps/tile/strchr.c
View File

@ -1,67 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
#undef strchr
char *
strchr (const char *s, int c)
{
int z, g;
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
const uint64_t goal = copy_byte(c);
/* Read the first aligned word, but force bytes before the string to
match neither zero nor goal (we make sure the high bit of each byte
is 1, and the low 7 bits are all the opposite of the goal byte). */
const uint64_t before_mask = MASK (s_int);
uint64_t v = (*p | before_mask) ^ (goal & v1shrui (before_mask, 1));
uint64_t zero_matches, goal_matches;
while (1)
{
/* Look for a terminating '\0'. */
zero_matches = v1cmpeqi (v, 0);
/* Look for the goal byte. */
goal_matches = v1cmpeq (v, goal);
if (__builtin_expect ((zero_matches | goal_matches) != 0, 0))
break;
v = *++p;
}
z = CFZ (zero_matches);
g = CFZ (goal_matches);
/* If we found c before '\0' we got a match. Note that if c == '\0'
then g == z, and we correctly return the address of the '\0'
rather than NULL. */
return (g <= z) ? ((char *) p) + (g >> 3) : NULL;
}
weak_alias (strchr, index)
libc_hidden_builtin_def (strchr)

64
sysdeps/tile/strchrnul.c
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@ -1,64 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
char *
__strchrnul (const char *s, int c)
{
int z, g;
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
const uint64_t goal = copy_byte(c);
/* Read the first aligned word, but force bytes before the string to
match neither zero nor goal (we make sure the high bit of each byte
is 1, and the low 7 bits are all the opposite of the goal byte). */
const uint64_t before_mask = MASK (s_int);
uint64_t v = (*p | before_mask) ^ (goal & v1shrui (before_mask, 1));
uint64_t zero_matches, goal_matches;
while (1)
{
/* Look for a terminating '\0'. */
zero_matches = v1cmpeqi (v, 0);
/* Look for the goal byte. */
goal_matches = v1cmpeq (v, goal);
if (__builtin_expect ((zero_matches | goal_matches) != 0, 0))
break;
v = *++p;
}
z = CFZ (zero_matches);
g = CFZ (goal_matches);
/* Return a pointer to the NUL or goal, whichever is first. */
if (z < g)
g = z;
return ((char *) p) + (g >> 3);
}
weak_alias (__strchrnul, strchrnul)

84
sysdeps/tile/string-endian.h
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@ -1,84 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <endian.h>
#include <stdint.h>
/* Provide a set of macros to help keep endianness #ifdefs out of
the string functions.
MASK: Provide a mask based on the pointer alignment that
sets up non-zero bytes before the beginning of the string.
The MASK expression works because shift counts are taken mod 64.
NULMASK: Clear bytes beyond a given point in the string.
CFZ: Find the first zero bit in the 8 string bytes in a long.
REVCZ: Find the last zero bit in the 8 string bytes in a long.
STRSHIFT: Shift N bits towards the start of the string. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define MASK(x) (__insn_shl(1ULL, (x << 3)) - 1)
#define NULMASK(x) ((2ULL << x) - 1)
#define CFZ(x) __insn_ctz(x)
#define REVCZ(x) __insn_clz(x)
#define STRSHIFT(x,n) ((x) >> n)
#else
#define MASK(x) (__insn_shl(-2LL, ((-x << 3) - 1)))
#define NULMASK(x) (-2LL << (63 - x))
#define CFZ(x) __insn_clz(x)
#define REVCZ(x) __insn_ctz(x)
#define STRSHIFT(x,n) ((x) << n)
#endif
/* Create eight copies of the byte in a uint64_t. Byte Shuffle uses
the bytes of srcB as the index into the dest vector to select a
byte. With all indices of zero, the first byte is copied into all
the other bytes. */
static inline uint64_t copy_byte(uint8_t byte)
{
return __insn_shufflebytes(byte, 0, 0);
}
/* Implement the byte vector instructions using extended assembly.
The __insn_OP() builtins are buggy in the upstream compiler;
see gcc bugzilla 78117. */
#define VECOP(OP) \
static inline uint64_t OP (uint64_t a, uint64_t b) \
{ \
uint64_t result; \
asm volatile (#OP " %0, %1, %2" : "=r"(result) : "r"(a), "r"(b)); \
return result; \
} \
\
static inline uint64_t OP ## i (uint64_t a, uint64_t b) \
{ \
uint64_t result; \
asm volatile (#OP "i %0, %1, %2" : "=r"(result) : "r"(a), "I"(b)); \
return result; \
}
VECOP(v1cmpeq)
VECOP(v1cmpltu)
VECOP(v1cmpne)
VECOP(v1add)
VECOP(v1shru)
VECOP(v1shl)

39
sysdeps/tile/strlen.c
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@ -1,39 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
size_t
strlen (const char *s)
{
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Read and MASK the first word. */
uint64_t v = *p | MASK (s_int);
uint64_t bits;
while ((bits = v1cmpeqi (v, 0)) == 0)
v = *++p;
return ((const char *) p) + (CFZ (bits) >> 3) - s;
}
libc_hidden_builtin_def (strlen)

57
sysdeps/tile/strnlen.c
View File

@ -1,57 +0,0 @@
/* Copyright (C) 2013-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
/* Find the length of S, but scan at most MAXLEN characters. If no
'\0' terminator is found in that many characters, return MAXLEN. */
size_t
__strnlen (const char *s, size_t maxlen)
{
/* When maxlen is 0, can't read any bytes or it might cause a page fault. */
if (maxlen == 0)
return 0;
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
size_t bytes_read = sizeof (*p) - (s_int & (sizeof (*p) - 1));
/* Read and MASK the first word. */
uint64_t v = *p | MASK (s_int);
uint64_t bits;
while ((bits = v1cmpeqi (v, 0)) == 0)
{
if (bytes_read >= maxlen)
{
/* Read maxlen bytes and didn't find the terminator. */
return maxlen;
}
v = *++p;
bytes_read += sizeof (v);
}
/* Found '\0', check it is not larger than maxlen */
size_t len = ((const char *) p) + (CFZ (bits) >> 3) - s;
return (len < maxlen ? len : maxlen);
}
libc_hidden_def (__strnlen)
weak_alias (__strnlen, strnlen)
libc_hidden_def (strnlen)

68
sysdeps/tile/strrchr.c
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@ -1,68 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdint.h>
#include "string-endian.h"
char *
strrchr (const char *s, int c)
{
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
const uint64_t goal = copy_byte(c);
/* Read the first aligned word, but force bytes before the string to
match neither zero nor goal (we make sure the high bit of each byte
is 1, and the low 7 bits are all the opposite of the goal byte). */
const uint64_t before_mask = MASK (s_int);
uint64_t v = (*p | before_mask) ^ (goal & v1shrui (before_mask, 1));
const char *found = NULL;
uint64_t zero_matches, goal_matches;
while (1)
{
/* Look for a terminating '\0'. */
zero_matches = v1cmpeqi (v, 0);
/* Look for the goal byte. */
goal_matches = v1cmpeq (v, goal);
/* If we found the goal, record the last offset. */
if (__builtin_expect (goal_matches != 0, 0))
{
if (__builtin_expect (zero_matches != 0, 0))
{
/* Clear any goal after the first zero. */
int first_nul = CFZ (zero_matches);
goal_matches &= NULMASK (first_nul);
}
if (__builtin_expect (goal_matches != 0, 1))
found = ((char *) p) + 7 - (REVCZ (goal_matches) >> 3);
}
if (__builtin_expect (zero_matches != 0, 0))
return (char *) found;
v = *++p;
}
}
weak_alias (strrchr, rindex)
libc_hidden_builtin_def (strrchr)

270
sysdeps/tile/strstr.c
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@ -1,270 +0,0 @@
/* Copyright (C) 2013-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Specification of strstr. */
#include <string.h>
#include <stdbool.h>
#include "string-endian.h"
#define RETURN_TYPE char *
#define AVAILABLE(h, h_l, j, n_l) \
(!memchr ((h) + (h_l), '\0', (j) + (n_l) - (h_l)) \
&& ((h_l) = (j) + (n_l)))
#include "str-two-way.h"
typeof(two_way_short_needle) two_way_short_needle __attribute__((unused));
#undef strstr
#ifndef STRSTR
#define STRSTR strstr
#endif
#ifndef STRSTR2
#define STRSTR2 strstr2
#endif
#ifndef STRCHR
#define STRCHR strchr
#endif
#ifndef STRSTR_SCAN
#define STRSTR_SCAN strstr_scan
#endif
#ifndef TOLOWER
# define TOLOWER(Ch) (Ch)
#endif
#ifdef USE_AS_STRCASESTR
static uint64_t
vec_tolower (uint64_t cc)
{
/* For Uppercases letters, add 32 to convert to lower case. */
uint64_t less_than_eq_Z = v1cmpltui (cc, 'Z' + 1);
uint64_t less_than_A = v1cmpltui (cc, 'A');
uint64_t is_upper = v1cmpne (less_than_eq_Z, less_than_A);
return v1add (cc, v1shli (is_upper, 5));
}
/* There is no strcasechr() defined, but needed for 1 byte case
of strcasestr(), so create it here. */
static char *
strcasechr (const char *s, int c)
{
int z, g;
c = tolower (c);
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) s;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the byte for which we are looking. */
const uint64_t goal = copy_byte(c);
/* Read the first aligned word, but force bytes before the string to
match neither zero nor goal (we make sure the high bit of each byte
is 1, and the low 7 bits are all the opposite of the goal byte). */
const uint64_t before_mask = MASK (s_int);
uint64_t v =
(vec_tolower (*p) | before_mask) ^ (goal & v1shrui (before_mask, 1));
uint64_t zero_matches, goal_matches;
while (1)
{
/* Look for a terminating '\0'. */
zero_matches = v1cmpeqi (v, 0);
/* Look for the goal byte. */
goal_matches = v1cmpeq (v, goal);
if (__builtin_expect ((zero_matches | goal_matches) != 0, 0))
break;
v = vec_tolower (*++p);
}
z = CFZ (zero_matches);
g = CFZ (goal_matches);
/* If we found c before '\0' we got a match. Note that if c == '\0'
then g == z, and we correctly return the address of the '\0'
rather than NULL. */
return (g <= z) ? ((char *) p) + (g >> 3) : NULL;
}
# define vec_load(p) vec_tolower (*(p))
# define STRCHR strcasechr
# define CMP_FUNC __strncasecmp
#else
# define vec_load(p) (*(p))
# define STRCHR strchr
# define CMP_FUNC memcmp
#endif
/* Compare 2-character needle using SIMD. */
static char *
STRSTR2 (const char *haystack_start, const char *needle)
{
int z, g;
__insn_prefetch (haystack_start + 64);
/* Get an aligned pointer. */
const uintptr_t s_int = (uintptr_t) haystack_start;
const uint64_t *p = (const uint64_t *) (s_int & -8);
/* Create eight copies of the first byte for which we are looking. */
const uint64_t byte1 = copy_byte (TOLOWER (*needle));
/* Create eight copies of the second byte for which we are looking. */
const uint64_t byte2 = copy_byte (TOLOWER (*(needle + 1)));
/* Read the first aligned word, but force bytes before the string to
match neither zero nor goal (we make sure the high bit of each byte
is 1, and the low 7 bits are all the opposite of the goal byte). */
const uint64_t before_mask = MASK (s_int);
uint64_t v =
(vec_load (p) | before_mask) ^ (byte1 & v1shrui (before_mask, 1));
uint64_t zero_matches, goal_matches;
while (1)
{
/* Look for a terminating '\0'. */
zero_matches = v1cmpeqi (v, 0);
uint64_t byte1_matches = v1cmpeq (v, byte1);
if (__builtin_expect (zero_matches != 0, 0))
{
/* This is the last vector. Don't worry about matches
crossing into the next vector. Shift the second byte
back 1 byte to align it with the first byte, then and to
check for both matching. Each vector has a 1 in the LSB
of the byte if there was match. */
uint64_t byte2_matches = v1cmpeq (v, byte2);
goal_matches = byte1_matches & STRSHIFT (byte2_matches, 8);
break;
}
else
{
/* This is not the last vector, so load the next vector now.
And compare byte2 to the 8-bytes starting 1 byte shifted from v,
which goes 1-byte into the next vector. */
uint64_t v2 = vec_load (p + 1);
if (byte1_matches)
{
/* 8-bytes starting 1 byte into v. */
v = __insn_dblalign (v, v2, (void*)1);
uint64_t byte2_matches_shifted = v1cmpeq (v, byte2);
goal_matches = byte1_matches & byte2_matches_shifted;
if (__builtin_expect (goal_matches != 0, 0))
break;
}
__insn_prefetch (p + 4);
/* Move to next vector. */
v = v2;
p++;
}
}
z = CFZ (zero_matches);
g = CFZ (goal_matches);
/* If we found the match before '\0' we got a true match. Note that
if c == '\0' then g == z, and we correctly return the address of
the '\0' rather than NULL. */
return (g <= z) ? ((char *) p) + (g >> 3) : NULL;
}
/* Scan for NEEDLE, using the first two characters as a filter. */
static char *
STRSTR_SCAN (const char *haystack, const char *needle,
unsigned int needle_len)
{
char *match;
while (1)
{
match = STRSTR2 (haystack, needle);
if (match == NULL)
return NULL;
/* Found first two characters of needle, check for remainder. */
if (CMP_FUNC (match + 2, needle + 2, needle_len - 2) == 0)
return match;
/* Move past the previous match. Could be +2 instead of +1 if
first two characters are different, but that tested slower. */
haystack = match + 1;
}
}
/* Return the first occurrence of NEEDLE in HAYSTACK. Return HAYSTACK
if NEEDLE is empty, otherwise NULL if NEEDLE is not found in
HAYSTACK. */
char *
STRSTR (const char *haystack_start, const char *needle_start)
{
const char *haystack = haystack_start;
const char *needle = needle_start;
__insn_prefetch (haystack);
size_t needle_len = strlen (needle_start); /* Length of NEEDLE. */
size_t haystack_len; /* Known minimum length of HAYSTACK. */
if (needle_len <= 2)
{
if (needle_len == 1)
return STRCHR (haystack_start, *needle_start);
if (needle_len == 0)
return (char *) haystack_start;
else
return STRSTR2 (haystack_start, needle_start);
}
/* Fail if NEEDLE is longer than HAYSTACK. */
if (__strnlen (haystack, needle_len) < needle_len)
return NULL;
/* Perform the search. Abstract memory is considered to be an array
of 'unsigned char' values, not an array of 'char' values. See
ISO C 99 section 6.2.6.1. */
if (needle_len < 40)
return STRSTR_SCAN (haystack_start, needle_start, needle_len);
else
{
/* Reduce the size of haystack using STRSTR2, since it has a smaller
linear coefficient than the Two-Way algorithm. */
haystack = STRSTR2 (haystack_start, needle_start);
if (haystack == NULL)
return NULL;
needle = needle_start;
haystack_len = (haystack > haystack_start + needle_len ? 1
: needle_len + haystack_start - haystack);
return two_way_long_needle ((const unsigned char *) haystack,
haystack_len,
(const unsigned char *) needle, needle_len);
}
}
#ifndef USE_AS_STRCASESTR
libc_hidden_builtin_def (STRSTR)
#endif
#undef LONG_NEEDLE_THRESHOLD

83
sysdeps/tile/sysdep.h
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@ -1,83 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdeps/generic/sysdep.h>
#include <bits/wordsize.h>
#include <arch/abi.h>
#if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
#include <feedback.h>
/* Make use of .size directive. */
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
/* Define an entry point visible from C. */
#define ENTRY(name) \
.globl C_SYMBOL_NAME(name); \
.type C_SYMBOL_NAME(name),@function; \
.align 8; \
C_LABEL(name) \
cfi_startproc; \
CALL_MCOUNT
#undef END
#define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(name)
/* Since C identifiers are not normally prefixed with an underscore
on this system, the asm identifier `syscall_error' intrudes on the
C name space. Make sure we use an innocuous name. */
#define syscall_error __syscall_error
#define mcount __mcount
/* If compiled for profiling, call `mcount' at the start of each function.
The mcount code requires the caller PC in r10. The `mcount' function
sets lr back to the value r10 had on entry when it returns. */
#ifdef PROF
#define CALL_MCOUNT { move r10, lr; jal mcount }
#else
#define CALL_MCOUNT /* Do nothing. */
#endif
/* Local label name for asm code. */
#define L(name) .L##name
/* Specify the size in bytes of a machine register. */
#define REGSIZE 8
/* Provide "pointer-oriented" instruction variants. These differ not
just for tilepro vs tilegx, but also for tilegx -m64 vs -m32. */
#if __WORDSIZE == 32
#define ADD_PTR addx
#define ADDI_PTR addxi
#define ADDLI_PTR addxli
#define LD_PTR ld4s
#define ST_PTR st4
#define SHL_PTR_ADD shl2add
#else
#define ADD_PTR add
#define ADDI_PTR addi
#define ADDLI_PTR addli
#define LD_PTR LD
#define ST_PTR ST
#define SHL_PTR_ADD shl3add
#endif
#endif /* __ASSEMBLER__ */

2
sysdeps/tile/tilegx32/Implies
View File

@ -1,2 +0,0 @@
tile
wordsize-32

2
sysdeps/tile/tilegx64/Implies
View File

@ -1,2 +0,0 @@
tile
wordsize-64

65
sysdeps/tile/tls-macros.h
View File

@ -1,65 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define TLS_GD_OFFSET(x) \
"moveli r0, hw1_last_tls_gd(" #x ")\n\t" \
"shl16insli r0, r0, hw0_tls_gd(" #x ")\n\t" \
"addi r0, %1, tls_add(" #x ")\n\t"
#define TLS_GD(x) \
({ \
int *__retval; \
extern char _GLOBAL_OFFSET_TABLE_[]; \
\
asm (TLS_GD_OFFSET(x) \
"jal tls_gd_call(" #x ")\n\t" \
"addi %0, r0, tls_gd_add(" #x ")" : \
"=&r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_) : \
"r0", "r25", "r26", "r27", "r28", "r29"); \
__retval; })
/* No special support for LD mode. */
#define TLS_LD TLS_GD
#define TLS_IE_OFFSET(x) \
"moveli %0, hw1_last_tls_ie(" #x ")\n\t" \
"shl16insli %0, %0, hw0_tls_ie(" #x ")\n\t" \
"addi %0, %1, tls_add(" #x ")\n\t"
#define LD_TLS "ld_tls"
#define TLS_IE(x) \
({ \
int *__retval; \
extern char _GLOBAL_OFFSET_TABLE_[]; \
\
asm (TLS_IE_OFFSET(x) \
LD_TLS " %0, %0, tls_ie_load(" #x ")\n\t" \
"add %0, %0, tp" : \
"=&r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_)); \
__retval; })
#define _TLS_LE(x) \
"moveli %0, hw1_last_tls_le(" #x ")\n\t" \
"shl16insli %0, %0, hw0_tls_le(" #x ")\n\t" \
"add %0, %0, tp"
#define TLS_LE(x) \
({ \
int *__retval; \
asm (_TLS_LE(x) : "=r" (__retval)); \
__retval; })

23
sysdeps/tile/tst-audit.h
View File

@ -1,23 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#define pltenter la_tile_gnu_pltenter
#define pltexit la_tile_gnu_pltexit
#define La_regs La_tile_regs
#define La_retval La_tile_retval
#define int_retval lrv_reg[0]

433
sysdeps/tile/wordcopy.c
View File

@ -1,433 +0,0 @@
/* wordcopy.c -- subroutines for memory copy functions. Tile version.
Copyright (C) 1991-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* To optimize for tile, we make the following changes from the
default glibc version:
- Use the double align instruction instead of the MERGE macro.
- Since we don't have offset addressing mode, make sure the loads /
stores in the inner loop always have indices of 0.
- Use post-increment addresses in the inner loops, which yields
better scheduling. */
/* BE VERY CAREFUL IF YOU CHANGE THIS CODE...! */
#include <stddef.h>
#include <memcopy.h>
/* Provide the appropriate dblalign builtin to shift two registers
based on the alignment of a pointer held in a third register. */
#define DBLALIGN __insn_dblalign
/* _wordcopy_fwd_aligned -- Copy block beginning at SRCP to
block beginning at DSTP with LEN `op_t' words (not LEN bytes!).
Both SRCP and DSTP should be aligned for memory operations on `op_t's. */
void
_wordcopy_fwd_aligned (long int dstp, long int srcp, size_t len)
{
op_t a0, a1;
switch (len % 8)
{
case 2:
a0 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 6;
goto do1;
case 3:
a1 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 5;
goto do2;
case 4:
a0 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 4;
goto do3;
case 5:
a1 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 3;
goto do4;
case 6:
a0 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 2;
goto do5;
case 7:
a1 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len += 1;
goto do6;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return;
a0 = ((op_t *) srcp)[0];
srcp += OPSIZ;
goto do7;
case 1:
a1 = ((op_t *) srcp)[0];
srcp += OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
goto do8; /* No-op. */
}
do
{
do8:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
do7:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
do6:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
do5:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
do4:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
do3:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
do2:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
do1:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
len -= 8;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
((op_t *) dstp)[0] = a1;
}
/* _wordcopy_fwd_dest_aligned -- Copy block beginning at SRCP to
block beginning at DSTP with LEN `op_t' words (not LEN bytes!).
DSTP should be aligned for memory operations on `op_t's, but SRCP must
*not* be aligned. */
void
_wordcopy_fwd_dest_aligned (long int dstp, long int srcp, size_t len)
{
void * srci;
op_t a0, a1, a2, a3;
/* Save the initial source pointer so we know the number of bytes to
shift for merging two unaligned results. */
srci = (void *) srcp;
/* Make SRCP aligned by rounding it down to the beginning of the `op_t'
it points in the middle of. */
srcp &= -OPSIZ;
switch (len % 4)
{
case 2:
a1 = ((op_t *) srcp)[0];
a2 = ((op_t *) srcp)[1];
len += 2;
srcp += 2 * OPSIZ;
goto do1;
case 3:
a0 = ((op_t *) srcp)[0];
a1 = ((op_t *) srcp)[1];
len += 1;
srcp += 2 * OPSIZ;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return;
a3 = ((op_t *) srcp)[0];
a0 = ((op_t *) srcp)[1];
len += 0;
srcp += 2 * OPSIZ;
goto do3;
case 1:
a2 = ((op_t *) srcp)[0];
a3 = ((op_t *) srcp)[1];
srcp += 2 * OPSIZ;
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
goto do4; /* No-op. */
}
do
{
do4:
a0 = ((op_t *) srcp)[0];
a2 = DBLALIGN (a2, a3, srci);
((op_t *) dstp)[0] = a2;
srcp += OPSIZ;
dstp += OPSIZ;
do3:
a1 = ((op_t *) srcp)[0];
a3 = DBLALIGN (a3, a0, srci);
((op_t *) dstp)[0] = a3;
srcp += OPSIZ;
dstp += OPSIZ;
do2:
a2 = ((op_t *) srcp)[0];
a0 = DBLALIGN (a0, a1, srci);
((op_t *) dstp)[0] = a0;
srcp += OPSIZ;
dstp += OPSIZ;
do1:
a3 = ((op_t *) srcp)[0];
a1 = DBLALIGN (a1, a2, srci);
((op_t *) dstp)[0] = a1;
srcp += OPSIZ;
dstp += OPSIZ;
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
((op_t *) dstp)[0] = DBLALIGN (a2, a3, srci);
}
/* _wordcopy_bwd_aligned -- Copy block finishing right before
SRCP to block finishing right before DSTP with LEN `op_t' words
(not LEN bytes!). Both SRCP and DSTP should be aligned for memory
operations on `op_t's. */
void
_wordcopy_bwd_aligned (long int dstp, long int srcp, size_t len)
{
op_t a0, a1;
long int srcp1;
srcp1 = srcp - 1 * OPSIZ;
srcp -= 2 * OPSIZ;
dstp -= 1 * OPSIZ;
switch (len % 8)
{
case 2:
a0 = ((op_t *) srcp1)[0];
len += 6;
goto do1;
case 3:
a1 = ((op_t *) srcp1)[0];
len += 5;
goto do2;
case 4:
a0 = ((op_t *) srcp1)[0];
len += 4;
goto do3;
case 5:
a1 = ((op_t *) srcp1)[0];
len += 3;
goto do4;
case 6:
a0 = ((op_t *) srcp1)[0];
len += 2;
goto do5;
case 7:
a1 = ((op_t *) srcp1)[0];
len += 1;
goto do6;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return;
a0 = ((op_t *) srcp1)[0];
goto do7;
case 1:
a1 = ((op_t *) srcp1)[0];
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
goto do8; /* No-op. */
}
do
{
do8:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp -= OPSIZ;
dstp -= OPSIZ;
do7:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp -= OPSIZ;
dstp -= OPSIZ;
do6:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp -= OPSIZ;
dstp -= OPSIZ;
do5:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp -= OPSIZ;
dstp -= OPSIZ;
do4:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp -= OPSIZ;
dstp -= OPSIZ;
do3:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp -= OPSIZ;
dstp -= OPSIZ;
do2:
a0 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a1;
srcp -= OPSIZ;
dstp -= OPSIZ;
do1:
a1 = ((op_t *) srcp)[0];
((op_t *) dstp)[0] = a0;
srcp -= OPSIZ;
dstp -= OPSIZ;
len -= 8;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
((op_t *) dstp)[0] = a1;
}
/* _wordcopy_bwd_dest_aligned -- Copy block finishing right
before SRCP to block finishing right before DSTP with LEN `op_t'
words (not LEN bytes!). DSTP should be aligned for memory
operations on `op_t', but SRCP must *not* be aligned. */
void
_wordcopy_bwd_dest_aligned (long int dstp, long int srcp, size_t len)
{
void * srci;
op_t a0, a1, a2, a3;
op_t b0, b1, b2, b3;
/* Save the initial source pointer so we know the number of bytes to
shift for merging two unaligned results. */
srci = (void *) srcp;
/* Make SRCP aligned by rounding it down to the beginning of the op_t
it points in the middle of. */
srcp &= -OPSIZ;
srcp += OPSIZ;
switch (len % 4)
{
case 2:
srcp -= 3 * OPSIZ;
dstp -= 1 * OPSIZ;
b2 = ((op_t *) srcp)[2];
b1 = a1 = ((op_t *) srcp)[1];
len += 2;
goto do1;
case 3:
srcp -= 3 * OPSIZ;
dstp -= 1 * OPSIZ;
b3 = ((op_t *) srcp)[2];
b2 = a2 = ((op_t *) srcp)[1];
len += 1;
goto do2;
case 0:
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
return;
srcp -= 3 * OPSIZ;
dstp -= 1 * OPSIZ;
b0 = ((op_t *) srcp)[2];
b3 = a3 = ((op_t *) srcp)[1];
goto do3;
case 1:
srcp -= 3 * OPSIZ;
dstp -= 1 * OPSIZ;
b1 = ((op_t *) srcp)[2];
b0 = a0 = ((op_t *) srcp)[1];
len -= 1;
if (OP_T_THRES <= 3 * OPSIZ && len == 0)
goto do0;
goto do4; /* No-op. */
}
do
{
do4:
b3 = a3 = ((op_t *) srcp)[0];
a0 = DBLALIGN (a0, b1, srci);
((op_t *) dstp)[0] = a0;
srcp -= OPSIZ;
dstp -= OPSIZ;
do3:
b2 = a2 = ((op_t *) srcp)[0];
a3 = DBLALIGN (a3, b0, srci);
((op_t *) dstp)[0] = a3;
srcp -= OPSIZ;
dstp -= OPSIZ;
do2:
b1 = a1 = ((op_t *) srcp)[0];
a2 = DBLALIGN (a2, b3, srci);
((op_t *) dstp)[0] = a2;
srcp -= OPSIZ;
dstp -= OPSIZ;
do1:
b0 = a0 = ((op_t *) srcp)[0];
a1 = DBLALIGN (a1, b2, srci);
((op_t *) dstp)[0] = a1;
srcp -= OPSIZ;
dstp -= OPSIZ;
len -= 4;
}
while (len != 0);
/* This is the right position for do0. Please don't move
it into the loop. */
do0:
a0 = DBLALIGN (a0, b1, srci);
((op_t *) dstp)[0] = a0;
}

3
sysdeps/unix/sysv/linux/aarch64/ldsodefs.h
View File

@ -1,4 +1,5 @@
/* Run-time dynamic linker data structures for loaded ELF shared objects. Tile. /* Run-time dynamic linker data structures for loaded ELF shared objects.
AArch64 version.
Copyright (C) 2001-2018 Free Software Foundation, Inc. Copyright (C) 2001-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.

2
sysdeps/unix/sysv/linux/nios2/Makefile
View File

@ -3,7 +3,7 @@ gen-as-const-headers += ucontext_i.sym
endif endif
ifeq ($(subdir),misc) ifeq ($(subdir),misc)
# MIPS/Tile-style cacheflush routine # MIPS-style cacheflush routine
sysdep_headers += sys/cachectl.h sysdep_headers += sys/cachectl.h
sysdep_routines += cacheflush sysdep_routines += cacheflush
endif endif

10
sysdeps/unix/sysv/linux/posix_fadvise.c
View File

@ -31,9 +31,8 @@
(redefined to __NR_fadvise64_64 in kernel-features.h) that behaves as (redefined to __NR_fadvise64_64 in kernel-features.h) that behaves as
__NR_fadvise64_64 (without the aligment argument required for the ABI). __NR_fadvise64_64 (without the aligment argument required for the ABI).
Third option will be used by both tile 32-bits and mips o32. Tile Third option will be used by mips o32. Mips will use a 7 argument
will set __ASSUME_FADVISE64_64_NO_ALIGN to issue a 6 argument syscall, syscall with __NR_fadvise64.
while mips will use a 7 argument one with __NR_fadvise64.
s390 implements fadvice64_64 using a specific struct with arguments s390 implements fadvice64_64 using a specific struct with arguments
packed inside. This is the only implementation handled in arch-specific packed inside. This is the only implementation handled in arch-specific
@ -53,11 +52,6 @@ posix_fadvise (int fd, off_t offset, off_t len, int advise)
SYSCALL_LL (offset), SYSCALL_LL (len)); SYSCALL_LL (offset), SYSCALL_LL (len));
# else # else
# ifdef __ASSUME_FADVISE64_64_NO_ALIGN
# undef __ALIGNMENT_ARG
# define __ALIGNMENT_ARG
# endif
# ifndef __NR_fadvise64_64 # ifndef __NR_fadvise64_64
# define __NR_fadvise64_64 __NR_fadvise64 # define __NR_fadvise64_64 __NR_fadvise64
# endif # endif

8
sysdeps/unix/sysv/linux/posix_fadvise64.c
View File

@ -26,18 +26,10 @@ libc_hidden_proto (__posix_fadvise64_l64)
just after 'fd' to avoid the requirement of implementing 7-arg syscalls. just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64. ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64.
tile requires __ASSUME_ALIGNED_REGISTER_PAIRS but implements the 32-bit
fadvise64_64 without the padding 0 after fd.
s390 implements fadvice64_64 using a specific struct with arguments s390 implements fadvice64_64 using a specific struct with arguments
packed inside. This is the only implementation handled in arch-specific packed inside. This is the only implementation handled in arch-specific
code. */ code. */
#ifdef __ASSUME_FADVISE64_64_NO_ALIGN
# undef __ALIGNMENT_ARG
# define __ALIGNMENT_ARG
#endif
#ifndef __NR_fadvise64_64 #ifndef __NR_fadvise64_64
# define __NR_fadvise64_64 __NR_fadvise64 # define __NR_fadvise64_64 __NR_fadvise64
#endif #endif

1
sysdeps/unix/sysv/linux/tile/Implies
View File

@ -1 +0,0 @@
tile/nptl

33
sysdeps/unix/sysv/linux/tile/Makefile
View File

@ -1,33 +0,0 @@
# Provide biarch definitions.
abi-variants := 64 32
abi-64-condition := __WORDSIZE == 64
abi-32-condition := __WORDSIZE == 32
ifeq ($(subdir),misc)
# <sys/reg.h> provides something like x86 compatibility.
# New code should probably use <arch/abi.h> instead.
sysdep_headers += sys/reg.h
# MIPS-style cacheflush routine
sysdep_headers += sys/cachectl.h
sysdep_routines += cacheflush
# Control dataplane properties of current thread (compatibility only).
sysdep_routines += set_dataplane
endif
ifeq ($(subdir),elf)
sysdep_routines += dl-vdso
ifeq ($(build-shared),yes)
# This is needed for DSO loading from static binaries.
sysdep-dl-routines += dl-static
endif
endif
ifeq ($(subdir),nptl)
# pull in __syscall_error routine
libpthread-routines += sysdep
libpthread-shared-only-routines += sysdep
endif

18
sysdeps/unix/sysv/linux/tile/Versions
View File

@ -1,18 +0,0 @@
ld {
GLIBC_PRIVATE {
# used for loading by static libraries
_dl_var_init;
}
}
libc {
GLIBC_2.12 {
_flush_cache;
cacheflush;
fallocate64;
set_dataplane;
}
GLIBC_PRIVATE {
__syscall_error;
__vdso_clock_gettime;
}
}

98
sysdeps/unix/sysv/linux/tile/bits/environments.h
View File

@ -1,98 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _UNISTD_H
# error "Never include this file directly. Use <unistd.h> instead"
#endif
#include <bits/wordsize.h>
/* This header should define the following symbols under the described
situations. A value `1' means that the model is always supported,
`-1' means it is never supported. Undefined means it cannot be
statically decided.
_POSIX_V7_ILP32_OFF32 32bit int, long, pointers, and off_t type
_POSIX_V7_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
_POSIX_V7_LP64_OFF32 64bit long and pointers and 32bit off_t type
_POSIX_V7_LPBIG_OFFBIG 64bit long and pointers and large off_t type
The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
_POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
_XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
used in previous versions of the Unix standard and are available
only for compatibility.
*/
#if __WORDSIZE == 64
/* Environments with 32-bit wide pointers are optionally provided.
Therefore following macros aren't defined:
# undef _POSIX_V7_ILP32_OFF32
# undef _POSIX_V7_ILP32_OFFBIG
# undef _POSIX_V6_ILP32_OFF32
# undef _POSIX_V6_ILP32_OFFBIG
# undef _XBS5_ILP32_OFF32
# undef _XBS5_ILP32_OFFBIG
and users need to check at runtime. */
/* We also have no use (for now) for an environment with bigger pointers
and offsets. */
# define _POSIX_V7_LPBIG_OFFBIG -1
# define _POSIX_V6_LPBIG_OFFBIG -1
# define _XBS5_LPBIG_OFFBIG -1
/* By default we have 64-bit wide `long int', pointers and `off_t'. */
# define _POSIX_V7_LP64_OFF64 1
# define _POSIX_V6_LP64_OFF64 1
# define _XBS5_LP64_OFF64 1
#else /* __WORDSIZE == 32 */
/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
and all platforms support LFS. */
# define _POSIX_V7_ILP32_OFF32 1
# define _POSIX_V7_ILP32_OFFBIG 1
# define _POSIX_V6_ILP32_OFF32 1
# define _POSIX_V6_ILP32_OFFBIG 1
# define _XBS5_ILP32_OFF32 1
# define _XBS5_ILP32_OFFBIG 1
/* We optionally provide an environment with the above size but an 64-bit
side `off_t'. Therefore we don't define _POSIX_V7_ILP32_OFFBIG. */
/* Environments with 64-bit wide pointers can be provided,
so these macros aren't defined:
# undef _POSIX_V7_LP64_OFF64
# undef _POSIX_V7_LPBIG_OFFBIG
# undef _POSIX_V6_LP64_OFF64
# undef _POSIX_V6_LPBIG_OFFBIG
# undef _XBS5_LP64_OFF64
# undef _XBS5_LPBIG_OFFBIG
and sysconf tests for it at runtime. */
#endif /* __WORDSIZE == 32 */
/* TILE-Gx has the ability to choose 32- or 64-bit. */
#define __ILP32_OFF32_CFLAGS "-m32"
#define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
#define __ILP32_OFF32_LDFLAGS "-m32"
#define __ILP32_OFFBIG_LDFLAGS "-m32"
#define __LP64_OFF64_CFLAGS "-m64"
#define __LP64_OFF64_LDFLAGS "-m64"

100
sysdeps/unix/sysv/linux/tile/bits/local_lim.h
View File

@ -1,100 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* The kernel header pollutes the namespace with the NR_OPEN symbol
and defines LINK_MAX although filesystems have different maxima. A
similar thing is true for OPEN_MAX: the limit can be changed at
runtime and therefore the macro must not be defined. Remove this
after including the header if necessary. */
#ifndef NR_OPEN
# define __undef_NR_OPEN
#endif
#ifndef LINK_MAX
# define __undef_LINK_MAX
#endif
#ifndef OPEN_MAX
# define __undef_OPEN_MAX
#endif
#ifndef ARG_MAX
# define __undef_ARG_MAX
#endif
/* The kernel sources contain a file with all the needed information. */
#include <linux/limits.h>
/* Have to remove NR_OPEN? */
#ifdef __undef_NR_OPEN
# undef NR_OPEN
# undef __undef_NR_OPEN
#endif
/* Have to remove LINK_MAX? */
#ifdef __undef_LINK_MAX
# undef LINK_MAX
# undef __undef_LINK_MAX
#endif
/* Have to remove OPEN_MAX? */
#ifdef __undef_OPEN_MAX
# undef OPEN_MAX
# undef __undef_OPEN_MAX
#endif
/* Have to remove ARG_MAX? */
#ifdef __undef_ARG_MAX
# undef ARG_MAX
# undef __undef_ARG_MAX
#endif
/* The number of data keys per process. */
#define _POSIX_THREAD_KEYS_MAX 128
/* This is the value this implementation supports. */
#define PTHREAD_KEYS_MAX 1024
/* Controlling the iterations of destructors for thread-specific data. */
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
/* Number of iterations this implementation does. */
#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
/* The number of threads per process. */
#define _POSIX_THREAD_THREADS_MAX 64
/* We have no predefined limit on the number of threads. */
#undef PTHREAD_THREADS_MAX
/* Maximum amount by which a process can descrease its asynchronous I/O
priority level. */
#define AIO_PRIO_DELTA_MAX 20
/* Minimum size for a thread. At least two pages for systems with 64k
pages. */
#define PTHREAD_STACK_MIN 131072
/* Maximum number of timer expiration overruns. */
#define DELAYTIMER_MAX 2147483647
/* Maximum tty name length. */
#define TTY_NAME_MAX 32
/* Maximum login name length. This is arbitrary. */
#define LOGIN_NAME_MAX 256
/* Maximum host name length. */
#define HOST_NAME_MAX 64
/* Maximum message queue priority level. */
#define MQ_PRIO_MAX 32768
/* Maximum value the semaphore can have. */
#define SEM_VALUE_MAX (2147483647)

40
sysdeps/unix/sysv/linux/tile/bits/mman.h
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@ -1,40 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_MMAN_H
# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
#endif
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
#ifdef __USE_MISC
/* These are Linux-specific. */
# define MAP_NONBLOCK 0x00080 /* Do not block on IO. */
# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
# define MAP_STACK MAP_GROWSDOWN /* Provide convenience alias. */
# define MAP_LOCKED 0x00200 /* Lock the mapping. */
# define MAP_NORESERVE 0x00400 /* Don't check for reservations. */
# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
# define MAP_POPULATE 0x00040 /* Populate (prefault) pagetables. */
# define MAP_HUGETLB 0x04000 /* Create huge page mapping. */
#endif
/* Include generic Linux declarations. */
#include <bits/mman-linux.h>

84
sysdeps/unix/sysv/linux/tile/bits/sigaction.h
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@ -1,84 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _BITS_SIGACTION_H
#define _BITS_SIGACTION_H 1
#ifndef _SIGNAL_H
# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
#endif
/* Structure describing the action to be taken when a signal arrives. */
struct sigaction
{
/* Signal handler. */
#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
union
{
/* Used if SA_SIGINFO is not set. */
__sighandler_t sa_handler;
/* Used if SA_SIGINFO is set. */
void (*sa_sigaction) (int, siginfo_t *, void *);
}
__sigaction_handler;
# define sa_handler __sigaction_handler.sa_handler
# define sa_sigaction __sigaction_handler.sa_sigaction
#else
__sighandler_t sa_handler;
#endif
/* Additional set of signals to be blocked. */
__sigset_t sa_mask;
/* Special flags. */
int sa_flags;
/* Restore handler. */
void (*sa_restorer) (void);
};
/* Bits in `sa_flags'. */
#define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */
#define SA_NOCLDWAIT 2 /* Don't create zombie on child death. */
#define SA_SIGINFO 4 /* Invoke signal-catching function with
three arguments instead of one. */
#if defined __USE_XOPEN_EXTENDED || defined __USE_MISC
# define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */
#endif
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
# define SA_RESTART 0x10000000 /* Restart syscall on signal return. */
# define SA_NODEFER 0x40000000 /* Don't automatically block the signal when
its handler is being executed. */
# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */
#endif
#ifdef __USE_MISC
# define SA_NOPTRACE 0x02000000 /* Don't ptrace this signal. */
# define SA_INTERRUPT 0x20000000 /* Historical no-op. */
/* Some aliases for the SA_ constants. */
# define SA_NOMASK SA_NODEFER
# define SA_ONESHOT SA_RESETHAND
# define SA_STACK SA_ONSTACK
#endif
/* Values for the HOW argument to `sigprocmask'. */
#define SIG_BLOCK 0 /* Block signals. */
#define SIG_UNBLOCK 1 /* Unblock signals. */
#define SIG_SETMASK 2 /* Set the set of blocked signals. */
#endif

10
sysdeps/unix/sysv/linux/tile/bits/siginfo-arch.h
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@ -1,10 +0,0 @@
/* Architecture-specific adjustments to siginfo_t. Tile version. */
#ifndef _BITS_SIGINFO_ARCH_H
#define _BITS_SIGINFO_ARCH_H 1
#define __SI_SIGFAULT_ADDL \
int _si_trapno;
#define si_trapno _sifields._sigfault._si_trapno
#endif

14
sysdeps/unix/sysv/linux/tile/bits/siginfo-consts-arch.h
View File

@ -1,14 +0,0 @@
/* Architecture-specific additional siginfo constants. Tile version. */
#ifndef _BITS_SIGINFO_CONSTS_ARCH_H
#define _BITS_SIGINFO_CONSTS_ARCH_H 1
/* `si_code' values for SIGILL signal. */
enum
{
ILL_DBLFLT = ILL_BADSTK + 1, /* Double fault. */
#define ILL_DBLFLT ILL_DBLFLT
ILL_HARDWALL /* User networks hardwall violation. */
#define ILL_HARDWALL ILL_HARDWALL
};
#endif

34
sysdeps/unix/sysv/linux/tile/cacheflush.c
View File

@ -1,34 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <stddef.h>
#include <unistd.h>
/* Flush cache(s). */
int
_flush_cache (char *addr, const int nbytes, const int op)
{
#ifdef __NR_cacheflush
return INLINE_SYSCALL (cacheflush, 3, addr, nbytes, op);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
weak_alias (_flush_cache, cacheflush)

176
sysdeps/unix/sysv/linux/tile/clone.S
View File

@ -1,176 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* clone() is even more special than fork() as it mucks with stacks
and invokes a function in the right context after it's all over. */
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#include <asm/unistd.h>
#include <arch/abi.h>
#include <tls.h>
#include <linux/sched.h>
/* What we save where in the stack frame; must include all callee-saves. */
#define FRAME_NEXT_LR (0 * REGSIZE) /* reserved by ABI; not used here */
#define FRAME_SP (1 * REGSIZE)
#define FRAME_R30 (2 * REGSIZE)
#define FRAME_R31 (3 * REGSIZE)
#define FRAME_R32 (4 * REGSIZE)
#define FRAME_SIZE (5 * REGSIZE)
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
pid_t *ptid, struct user_desc *tls, pid_t *ctid); */
.text
ENTRY (__clone)
/* Create a stack frame so we can pass callee-saves to new task. */
{
move r10, sp
st sp, lr
ADDI_PTR sp, sp, -FRAME_SIZE
}
cfi_offset (lr, 0)
cfi_def_cfa_offset (FRAME_SIZE)
ADDI_PTR r11, sp, FRAME_SP
{
st r11, r10
ADDI_PTR r11, sp, FRAME_R30
}
{
st r11, r30
ADDI_PTR r11, sp, FRAME_R31
}
cfi_offset (r30, FRAME_R30 - FRAME_SIZE)
{
st r11, r31
ADDI_PTR r11, sp, FRAME_R32
}
cfi_offset (r31, FRAME_R31 - FRAME_SIZE)
st r11, r32
cfi_offset (r32, FRAME_R32 - FRAME_SIZE)
/* sanity check arguments */
beqz r0, .Linvalid
beqz r1, .Linvalid
/* Make sure child stack is properly aligned, and set up the
top frame so that we can call out of it immediately in the
child. Setting it up here means we fault in the parent if
it's bogus, which is probably cleaner than faulting first
thing in the child. */
ADDI_PTR r1, r1, -C_ABI_SAVE_AREA_SIZE
andi r1, r1, -C_ABI_SAVE_AREA_SIZE
ADDI_PTR r9, r1, REGSIZE /* sp of this frame on entry, i.e. zero */
st r9, zero
/* We need to switch the argument convention around from
libc to kernel:
libc:
r0 fn
r1 child_stack
r2 flags
r3 arg
r4 ptid
r5 tls
r6 ctid
kernel:
r0 flags
r1 child_stack [same as libc]
r2 ptid
r3 ctid
r4 tls
Plus the callee-saves as described at .Lthread_start, below. */
{
move r32, r0
move r0, r2
}
{
move r31, r3
move r3, r6
}
{
move r30, r2
move r2, r4
}
{
move r4, r5
moveli TREG_SYSCALL_NR_NAME, __NR_clone
}
swint1
beqz r0, .Lthread_start /* If in child task. */
.Ldone:
/* Restore the callee-saved registers and return. */
ADDLI_PTR lr, sp, FRAME_SIZE
{
ld lr, lr
ADDLI_PTR r30, sp, FRAME_R30
}
{
ld r30, r30
ADDLI_PTR r31, sp, FRAME_R31
}
{
ld r31, r31
ADDLI_PTR r32, sp, FRAME_R32
}
{
ld r32, r32
ADDI_PTR sp, sp, FRAME_SIZE
}
cfi_def_cfa_offset (0)
bnez r1, .Lerror
jrp lr
.Lerror:
j SYSCALL_ERROR_NAME
.Linvalid:
{
movei r1, EINVAL
j .Ldone
}
/* This function expects to receive:
sp: the top of a valid stack area
r30: clone() flags
r31: the argument to pass to the user function
r32: the user function pointer */
.Lthread_start:
cfi_def_cfa_offset (FRAME_SIZE)
cfi_undefined (lr)
{
/* Invoke user function with specified argument. */
move r0, r31
jalr r32
}
moveli TREG_SYSCALL_NR_NAME, __NR_exit
swint1
PSEUDO_END (__clone)
libc_hidden_def (__clone)
weak_alias (__clone, clone)

21
sysdeps/unix/sysv/linux/tile/configure vendored
View File

@ -1,21 +0,0 @@
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/unix/sysv/linux/tile/tilegx
ldd_rewrite_script=$dir/ldd-rewrite.sed
case $machine in
tile/tilegx32)
test -n "$libc_cv_slibdir" ||
case "$prefix" in
/usr | /usr/)
libc_cv_slibdir='/lib32'
libc_cv_rtlddir='/lib32'
if test "$libdir" = '${exec_prefix}/lib'; then
libdir='${exec_prefix}/lib32';
# Locale data can be shared between 32-bit and 64-bit libraries.
libc_cv_complocaledir='${exec_prefix}/lib/locale'
fi
;;
esac
;;
esac

10
sysdeps/unix/sysv/linux/tile/configure.ac
View File

@ -1,10 +0,0 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/tile/tilegx
ldd_rewrite_script=$dir/ldd-rewrite.sed
case $machine in
tile/tilegx32)
LIBC_SLIBDIR_RTLDDIR([lib32], [lib32])
;;
esac

84
sysdeps/unix/sysv/linux/tile/dl-static.c
View File

@ -1,84 +0,0 @@
/* Variable initialization. Tile version.
Copyright (C) 2001-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <ldsodefs.h>
#ifdef SHARED
void
_dl_var_init (void *array[])
{
/* It has to match "variables" below. */
enum
{
DL_PAGESIZE = 0
};
GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
}
#else
static void *variables[] =
{
&GLRO(dl_pagesize)
};
static void
_dl_unprotect_relro (struct link_map *l)
{
ElfW(Addr) start = ((l->l_addr + l->l_relro_addr)
& ~(GLRO(dl_pagesize) - 1));
ElfW(Addr) end = ((l->l_addr + l->l_relro_addr + l->l_relro_size)
& ~(GLRO(dl_pagesize) - 1));
if (start != end)
__mprotect ((void *) start, end - start, PROT_READ | PROT_WRITE);
}
void
_dl_static_init (struct link_map *l)
{
struct link_map *rtld_map = l;
struct r_scope_elem **scope;
const ElfW(Sym) *ref = NULL;
lookup_t loadbase;
void (*f) (void *[]);
size_t i;
loadbase = _dl_lookup_symbol_x ("_dl_var_init", l, &ref, l->l_local_scope,
NULL, 0, 1, NULL);
for (scope = l->l_local_scope; *scope != NULL; scope++)
for (i = 0; i < (*scope)->r_nlist; i++)
if ((*scope)->r_list[i] == loadbase)
{
rtld_map = (*scope)->r_list[i];
break;
}
if (ref != NULL)
{
f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
_dl_unprotect_relro (rtld_map);
f (variables);
_dl_protect_relro (rtld_map);
}
}
#endif

95
sysdeps/unix/sysv/linux/tile/getcontext.S
View File

@ -1,95 +0,0 @@
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <arch/abi.h>
#include "ucontext_i.h"
/* int getcontext (ucontext_t *ucp) */
.text
ENTRY (__getcontext)
FEEDBACK_ENTER(__getcontext)
/* Save the callee-saved GPRs. There's no need to save the
caller-saved GPRs since the eventual setcontext() or
swapcontext() will assume those registers are all dead.
Save value "1" to uc_flags to later recognize getcontext(). */
{ movei r11, 1; ADDI_PTR r10, r0, UC_FLAGS_OFFSET }
{ ST_PTR r10, r11; addli r10, r0, UC_REG(30) }
{ st r10, r30; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r31; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r32; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r33; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r34; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r35; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r36; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r37; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r38; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r39; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r40; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r41; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r42; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r43; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r44; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r45; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r46; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r47; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r48; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r49; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r50; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r51; ADDI_PTR r10, r10, REGSIZE }
{ st r10, r52; ADDI_PTR r10, r10, REGSIZE }
{ st r10, tp; ADDI_PTR r10, r10, REGSIZE }
{ st r10, sp; ADDI_PTR r10, r10, REGSIZE }
{ st r10, lr; ADDI_PTR r10, r10, REGSIZE }
lnk r11 /* Point PC at the "jrp lr" instruction. */
addli r11, r11, .Lreturn - .
{ st r10, r11; ADDI_PTR r10, r10, REGSIZE }
mfspr r11, INTERRUPT_CRITICAL_SECTION
{
st r10, r11
movei r1, 0
}
/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG / 8) */
{
movei r3, _NSIG / 8
addli r2, r0, UC_SIGMASK_OFFSET
}
{
movei r0, SIG_BLOCK
moveli TREG_SYSCALL_NR_NAME, __NR_rt_sigprocmask
}
swint1
bnez r1, .Lsyscall_error
.Lreturn:
{
movei r0, 0
jrp lr
}
.Lsyscall_error:
j SYSCALL_ERROR_NAME
END (__getcontext)
.hidden __getcontext
weak_alias (__getcontext, getcontext)

48
sysdeps/unix/sysv/linux/tile/init-first.c
View File

@ -1,48 +0,0 @@
/* Copyright (C) 2012-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
#include <dl-vdso.h>
#include <libc-vdso.h>
struct syscall_return_value (*VDSO_SYMBOL(gettimeofday)) (struct timeval *,
void *)
attribute_hidden;
struct syscall_return_value (*VDSO_SYMBOL(clock_gettime)) (clockid_t,
struct timespec *)
__attribute__ ((nocommon));
static inline void
_libc_vdso_platform_setup (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
void *p = _dl_vdso_vsym ("__vdso_gettimeofday", &linux26);
PTR_MANGLE (p);
VDSO_SYMBOL (gettimeofday) = p;
p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26);
PTR_MANGLE (p);
VDSO_SYMBOL (clock_gettime) = p;
}
#define VDSO_SETUP _libc_vdso_platform_setup
#endif
#include <csu/init-first.c>

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