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Move sparc away from the deprecated inifini.c scheme.

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	* sysdeps/sparc/Makefile: Add -fPIC when building crt{i,n}.S
	* sysdeps/sparc/crti.S: New file.
	* sysdeps/sparc/crtn.S: New file.
	* sysdeps/sparc/sparc32/Makefile: Remove initfini handling.
	* sysdeps/sparc/sparc64/Makefile: Likewise.

nptl/

	* sysdeps/sparc/Makefile: Add -fPIC when building pt-crti.S and crtn.S
This commit is contained in:
David S. Miller 2012-02-16 12:54:05 -08:00
parent df6a4a4aec
commit f63f338062
8 changed files with 168 additions and 8 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2012-02-16 David S. Miller <davem@davemloft.net>
* sysdeps/sparc/Makefile: Add -fPIC when building crt{i,n}.S
* sysdeps/sparc/crti.S: New file.
* sysdeps/sparc/crtn.S: New file.
* sysdeps/sparc/sparc32/Makefile: Remove initfini handling.
* sysdeps/sparc/sparc64/Makefile: Likewise.
2012-02-15 Mike Frysinger <vapier@gentoo.org>
* sysdeps/unix/sysv/linux/getcwd.c: Include sys/param.h.

4
nptl/ChangeLog
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@ -1,3 +1,7 @@
2012-02-16 David S. Miller <davem@davemloft.net>
* sysdeps/sparc/Makefile: Add -fPIC when building pt-crti.S and crtn.S
2012-02-15 Marek Polacek <polacek@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/Makefile: Remove file.

5
nptl/sysdeps/sparc/Makefile
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@ -1,3 +1,8 @@
ifeq ($(subdir),csu)
gen-as-const-headers += tcb-offsets.sym
endif
ifeq ($(subdir),nptl)
CPPFLAGS-pt-crti.S += -fPIC
CPPFLAGS-crtn.S += -fPIC
endif

2
sysdeps/sparc/Makefile
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@ -14,4 +14,6 @@ endif
ifeq ($(subdir),csu)
# get offset to rtld_global._dl_hwcap
gen-as-const-headers += rtld-global-offsets.sym
CPPFLAGS-crti.S += -fPIC
CPPFLAGS-crtn.S += -fPIC
endif

104
sysdeps/sparc/crti.S Normal file
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@ -0,0 +1,104 @@
/* Special .init and .fini section support for sparc.
Copyright (C) 1995-2012 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
#ifdef __arch64__
#define STACKFRAME_SIZE 176
#define GOT_LOAD ldx
#else
#define STACKFRAME_SIZE 96
#define GOT_LOAD ld
#endif
.section .init,"ax",@progbits
.p2align 2
.globl _init
.type _init, @function
_init:
save %sp, -STACKFRAME_SIZE, %sp
#if PREINIT_FUNCTION_WEAK
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7
call __sparc_get_pc_thunk.l7
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7
sethi %hi(PREINIT_FUNCTION), %g1
or %g1, %lo(PREINIT_FUNCTION), %g1
GOT_LOAD [%l7 + %g1], %g1
cmp %g1, 0
be 1f
nop
call PREINIT_FUNCTION
nop
1:
#else
call PREINIT_FUNCTION
nop
#endif
.section .fini,"ax",@progbits
.p2align 2
.globl _fini
.type _fini, @function
_fini:
save %sp, -STACKFRAME_SIZE, %sp
.section .text.__sparc_get_pc_thunk.l7,"axG",@progbits,__sparc_get_pc_thunk.l7,comdat
.p2align 2
.weak __sparc_get_pc_thunk.l7
.hidden __sparc_get_pc_thunk.l7
.type __sparc_get_pc_thunk.l7, #function
__sparc_get_pc_thunk.l7:
jmp %o7 + 8
add %o7, %l7, %l7

45
sysdeps/sparc/crtn.S Normal file
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@ -0,0 +1,45 @@
/* Special .init and .fini section support for sparc.
Copyright (C) 1995-2012 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. */
.section .init,"ax",@progbits
jmp %i7 + 8
restore
.section .fini,"ax",@progbits
jmp %i7 + 8
restore

4
sysdeps/sparc/sparc32/Makefile
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@ -19,10 +19,6 @@ ifeq ($(subdir),gnulib)
sysdep_routines = dotmul umul $(divrem) alloca
endif # gnulib
ifeq ($(subdir),csu)
CFLAGS-initfini.s += -mcpu=v7
endif
# We distribute these files, even though they are generated,
# so as to avoid the need for a functioning m4 to build the library.
divrem := sdiv udiv rem urem

4
sysdeps/sparc/sparc64/Makefile
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@ -3,10 +3,6 @@ sysdep_routines += hp-timing
elide-routines.os += hp-timing
endif
ifeq ($(subdir),csu)
CFLAGS-initfini.s += -mcpu=v9
endif
ifeq ($(subdir),string)
sysdep_routines += align-cpy
endif