AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-09 23:00:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added Matsushita AM33/2.0 port.

Browse Source
This commit is contained in:
Alexandre Oliva 2004-10-23 00:33:35 +00:00
parent 145f3f8a3c
commit d115c0d8f6
81 changed files with 3454 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

207
ChangeLog.am33 Normal file
View File

@ -0,0 +1,207 @@
2004-10-22 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/bits/mman.h (PROT_GROWSDOWN): New.
(PROT_GROWSUP): New.
2004-08-16 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/shlib-versions: Moved from top level.
2004-08-09 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/preconfigure: Renamed from configure.
* Makefile: Removed.
2004-07-20 Alexandre Oliva <aoliva@redhat.com>
Moved from separate linuxthreads tree into am33/linuxthreads
subdirs:
2004-07-01 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/linuxthreads/sysdep-cancel.h
(PSEUDO): Save value returned by CENABLE and pass it to CDISABLE.
* sysdeps/am33/linuxthreads/pt-machine.h (testandset): Take
volatile argument. Improve asm statement.
2001-10-31 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/linuxthreads/pspinlock.c: New file.
* sysdeps/am33/linuxthreads/pt-machine.h: New file.
2004-07-19 Alexandre Oliva <aoliva@redhat.com>
* configure: New.
* mach.sh: Removed.
* sysdeps/am33/Makefile: Likewise.
2004-06-28 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/Makefile: New file.
* sysdeps/unix/sysv/linux/am33/configure.in: New file.
* sysdeps/unix/sysv/linux/am33/configure: New file.
* mach.sh: New file.
2004-06-19 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/fpu/bits/fenv.h: New file.
* sysdeps/am33/fpu/fpu_control.h: New file.
* sysdeps/am33/fpu/fenv_libc.h: New file.
* sysdeps/am33/fpu/fclrexcpt.c: New file.
* sysdeps/am33/fpu/fedisblxcpt.c: New file.
* sysdeps/am33/fpu/feenablxcpt.c: New file.
* sysdeps/am33/fpu/fegetenv.c: New file.
* sysdeps/am33/fpu/fegetexcept.c: New file.
* sysdeps/am33/fpu/fegetround.c: New file.
* sysdeps/am33/fpu/feholdexcpt.c: New file.
* sysdeps/am33/fpu/fesetenv.c: New file.
* sysdeps/am33/fpu/fesetround.c: New file.
* sysdeps/am33/fpu/feupdateenv.c: New file.
* sysdeps/am33/fpu/fgetexcptflg.c: New file.
* sysdeps/am33/fpu/fraiseexcpt.c: New file.
* sysdeps/am33/fpu/fsetexcptflg.c: New file.
* sysdeps/am33/fpu/ftestexcept.c: New file.
* sysdeps/unix/am33/sysdep.h: Use relative pathnames.
* sysdeps/unix/sysv/linux/am33/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/am33/sysdep.S: Likewise.
* configure, Makefile: Do nothing.
2004-06-09 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/bsd-setjmp.S: Move into...
* sysdeps/am33/setjmp.S: ... this file.
* sysdeps/am33/bsd-_setjmp.S: Likewise.
* sysdeps/am33/dl-machine.h (_dl_start_user): Do not do double
indirection to obtain _dl_loaded.
(elf_machine_rela_relative): Do not add addend.
2004-06-08 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/sysdep.h (JUMPTARGET): Undef before redefining.
* sysdeps/unix/sysv/linux/am33/sysdep.h (PSEUDO_NOERROR,
PSEUDO_END_NOERROR, ret_NOERROR, PSEUDO_ERRVAL, PSEUDO_END_ERRVAL,
ret_ERRVAL, INTERNAL_SYSCALL, INTERNAL_SYSCALL_DECL,
INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): New.
(INLINE_SYSCALL): Rewrite in terms of INTERNAL_SYSCALL macros.
(DO_CALL): Reorder arguments.
* sysdeps/am33/dl-machine.h (elf_machine_rela): Update prototype.
2003-05-16 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/Makefile: New file.
* sysdeps/unix/sysv/linux/am33/sysdep.h (INLINE_SYSCALL1): Drop
comma before args when calling inline_syscall0.
* sysdeps/unix/sysv/linux/am33/chown.c: New file.
* sysdeps/unix/sysv/linux/am33/fchown.c: New file.
* sysdeps/unix/sysv/linux/am33/fxstat.c: New file.
* sysdeps/unix/sysv/linux/am33/getegid.c: New file.
* sysdeps/unix/sysv/linux/am33/geteuid.c: New file.
* sysdeps/unix/sysv/linux/am33/getgid.c: New file.
* sysdeps/unix/sysv/linux/am33/getrlimit.c: New file.
* sysdeps/unix/sysv/linux/am33/getuid.c: New file.
* sysdeps/unix/sysv/linux/am33/lchown.c: New file.
* sysdeps/unix/sysv/linux/am33/lockf64.c: New file.
* sysdeps/unix/sysv/linux/am33/lxstat.c: New file.
* sysdeps/unix/sysv/linux/am33/setegid.c: New file.
* sysdeps/unix/sysv/linux/am33/seteuid.c: New file.
* sysdeps/unix/sysv/linux/am33/setfsgid.c: New file.
* sysdeps/unix/sysv/linux/am33/setfsuid.c: New file.
* sysdeps/unix/sysv/linux/am33/setgid.c: New file.
* sysdeps/unix/sysv/linux/am33/setregid.c: New file.
* sysdeps/unix/sysv/linux/am33/setresgid.c: New file.
* sysdeps/unix/sysv/linux/am33/setresuid.c: New file.
* sysdeps/unix/sysv/linux/am33/setreuid.c: New file.
* sysdeps/unix/sysv/linux/am33/setrlimit.c: New file.
* sysdeps/unix/sysv/linux/am33/setuid.c: New file.
* sysdeps/unix/sysv/linux/am33/xstat.c: New file.
* sysdeps/unix/sysv/linux/am33/syscalls.list: Removed, reverting
2003-03-26's patch.
* sysdeps/unix/sysv/linux/am33/getresgid.c: New file.
* sysdeps/unix/sysv/linux/am33/getresuid.c: New file.
2003-05-09 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/getgroups.c: New file.
* sysdeps/unix/sysv/linux/am33/setgroups.c: New file.
2003-05-07 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/getmsg.c: New file.
* sysdeps/unix/sysv/linux/am33/putmsg.c: New file.
2003-03-26 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/syscalls.list: Added getresuid and
getresgid.
2003-01-17 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/fcntl.c: New file.
2002-02-08 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/sys/ucontext.h (fpregset_t): Make it a structure.
2002-01-07 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/sys/ucontext.h (NFREG): Increment by 1, to make
room for FPCR.
2001-12-13 Alexandre Oliva <aoliva@redhat.com>
* shlib-versions: Set GLIBC_2.2.5 as the earliest symbol set.
2001-12-07 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/am33/__longjmp.S: Tabify.
* sysdeps/am33/setjmp.S: Likewise.
* sysdeps/am33/dl-debug.h: Remove.
* sysdeps/am33/dl-machine.h: Delete commented-out uses of
macros defined in dl-debug.
(elf_machine_rela): Optimize if HAVE_Z_COMBRELOC. Fix
prediction of R_MN10300_NONE. Don't test for impossible
condition.
* sysdeps/am33/sysdep.h (ASM_TYPE_DIRECTIVE,
ASM_SIZE_DIRECTIVE): Define to nothing if ! HAVE_ELF.
2001-11-09 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/clone.S: Avoid branch overflow in
static link.
2001-11-08 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/clone.S: Load arguments correctly
for syscall.
2001-11-07 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/am33/clone.S: Fix argument-passing
to thread_start.
2001-10-31 Alexandre Oliva <aoliva@redhat.com>
* shlib-versions: Added am33_2.0 support.
* sysdeps/am33/Implies: New file.
* sysdeps/am33/__longjmp.S: New file.
* sysdeps/am33/atomicity.h: New file.
* sysdeps/am33/bsd-_setjmp.S: New file.
* sysdeps/am33/bsd-setjmp.S: New file.
* sysdeps/am33/dl-debug.h: New file.
* sysdeps/am33/dl-machine.h: New file.
* sysdeps/am33/memusage.h: New file.
* sysdeps/am33/setjmp.S: New file.
* sysdeps/am33/stackinfo.h: New file.
* sysdeps/am33/sysdep.h: New file.
* sysdeps/am33/bits/endian.h: New file.
* sysdeps/am33/bits/setjmp.h: New file.
* sysdeps/am33/elf/start.S: New file.
* sysdeps/am33/sys/ucontext.h: New file.
* sysdeps/unix/am33/sysdep.S: New file.
* sysdeps/unix/am33/sysdep.h: New file.
* sysdeps/unix/sysv/linux/am33/brk.c: New file.
* sysdeps/unix/sysv/linux/am33/clone.S: New file.
* sysdeps/unix/sysv/linux/am33/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/am33/socket.S: New file.
* sysdeps/unix/sysv/linux/am33/syscall.S: New file.
* sysdeps/unix/sysv/linux/am33/sysdep.S: New file.
* sysdeps/unix/sysv/linux/am33/sysdep.h: New file.
* sysdeps/unix/sysv/linux/am33/bits/fcntl.h: New file.
* sysdeps/unix/sysv/linux/am33/bits/mman.h: New file.

3
sysdeps/am33/Implies Normal file
View File

@ -0,0 +1,3 @@
wordsize-32
ieee754/flt-32
ieee754/dbl-64

61
sysdeps/am33/__longjmp.S Normal file
View File

@ -0,0 +1,61 @@
/* longjmp for AM33.
Copyright 2001 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. */
#include <sysdep.h>
#define _ASM
#define _SETJMP_H
#include <bits/setjmp.h>
#include <asm-syntax.h>
ENTRY (__longjmp)
mov d0,a0
mov (8,a0),d2
mov d2,mdr
mov (0,a0),d2
mov (4,a0),d3
mov (12,a0),a2
mov (16,a0),a3
mov (20,a0),a1
mov a1,sp
add 24,a0
mov (a0+),r4
mov (a0+),r5
mov (a0+),r6
mov (a0+),r7
#ifdef __AM33_2__
fmov (a0+),fs4
fmov (a0+),fs5
fmov (a0+),fs6
fmov (a0+),fs7
fmov (a0+),fs8
fmov (a0+),fs9
fmov (a0+),fs10
fmov (a0+),fs11
fmov (a0+),fs12
fmov (a0+),fs13
fmov (a0+),fs14
fmov (a0+),fs15
fmov (a0+),fs16
fmov (a0+),fs17
fmov (a0+),fs18
fmov (a0+),fs19
#endif
mov d1,d0
retf [],0
END (__longjmp)

87
sysdeps/am33/atomicity.h Normal file
View File

@ -0,0 +1,87 @@
/* Low-level functions for atomic operations. AM33 version.
Copyright 1999, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../sparc/sparc32/atomicity.h
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _ATOMICITY_H
#define _ATOMICITY_H 1
#include <inttypes.h>
#define __acquire_lock(lock) \
__asm__ __volatile__("1: bset %1, (%0)\n\t" \
" beq 1b" \
: : "a" (&(lock)), "d" (1) \
: "memory")
#define __release_lock(lock) lock = 0
static int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
{
static unsigned char lock;
int result;
__acquire_lock (lock);
result = *mem;
*mem += val;
__release_lock (lock);
return result;
}
static void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
static unsigned char lock;
__acquire_lock (lock);
*mem += val;
__release_lock (lock);
}
static int
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
static unsigned char lock;
int ret;
__acquire_lock (lock);
if (*p != oldval)
ret = 0;
else
{
*p = newval;
ret = 1;
}
__release_lock (lock);
return ret;
}
#endif /* atomicity.h */

7
sysdeps/am33/bits/endian.h Normal file
View File

@ -0,0 +1,7 @@
/* AM33 is little-endian. */
#ifndef _ENDIAN_H
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
#endif
#define __BYTE_ORDER __LITTLE_ENDIAN

34
sysdeps/am33/bits/setjmp.h Normal file
View File

@ -0,0 +1,34 @@
/* Copyright 2001 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. */
/* Define the machine-dependent type `jmp_buf'. AM33 version. */
#ifndef _SETJMP_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
#ifndef _ASM
typedef int __jmp_buf[26];
#endif
#define __JMP_BUF_SP 20
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))

1
sysdeps/am33/bsd-_setjmp.S Normal file
View File

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

1
sysdeps/am33/bsd-setjmp.S Normal file
View File

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

481
sysdeps/am33/dl-machine.h Normal file
View File

@ -0,0 +1,481 @@
/* Machine-dependent ELF dynamic relocation inline functions. AM33 version.
Copyright (C) 1995,96,97,98,99,2000,2001, 2004
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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef dl_machine_h
#define dl_machine_h
#define ELF_MACHINE_NAME "mn10300"
#include <sys/param.h>
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int __attribute__ ((unused))
elf_machine_matches_host (const Elf32_Ehdr *ehdr)
{
return ehdr->e_machine == EM_MN10300;
}
/* 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 Elf32_Addr __attribute__ ((unused))
elf_machine_dynamic (void)
{
register Elf32_Addr *got asm ("a2");
return *got;
}
/* Return the run-time load address of the shared object. */
static inline Elf32_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
register Elf32_Addr gotaddr asm ("a2");
Elf32_Addr off, gotval;
asm ("mov _dl_start@GOTOFF,%0" : "=r" (off));
asm ("mov (_dl_start@GOT,%1),%0" : "=r" (gotval) : "r" (gotaddr));
return off + gotaddr - gotval;
}
#if !defined PROF && !__BOUNDED_POINTERS__
/* We add a declaration of this function here so that in dl-runtime.c
the ELF_MACHINE_RUNTIME_TRAMPOLINE macro really can pass the parameters
in registers.
We cannot use this scheme for profiling because the _mcount call
destroys the passed register information. */
/* GKM FIXME: Fix trampoline to pass bounds so we can do
without the `__unbounded' qualifier. */
static ElfW(Addr) fixup (struct link_map *__unbounded l, ElfW(Word) reloc_offset)
__attribute__ ((unused));
static ElfW(Addr) profile_fixup (struct link_map *l, ElfW(Word) reloc_offset,
ElfW(Addr) retaddr)
__attribute__ ((unused));
#endif
/* 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)
{
Elf32_Addr *got;
extern void _dl_runtime_resolve (Elf32_Word) attribute_hidden;
extern void _dl_runtime_profile (Elf32_Word) attribute_hidden;
if (l->l_info[DT_JMPREL] && lazy)
{
/* The GOT entries for functions in the PLT have not yet been filled
in. Their initial contents will arrange when called to push an
offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1],
and then jump to _GLOBAL_OFFSET_TABLE[2]. */
got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
got[1] = (Elf32_Addr) l; /* Identify this shared object. */
/* The got[2] 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 GOT so that all future calls also
end in this function. */
if (__builtin_expect (profile, 0))
{
got[2] = (Elf32_Addr) &_dl_runtime_profile;
if (_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 GOT entry indicated by
the offset on the stack, and then jump to the resolved address. */
got[2] = (Elf32_Addr) &_dl_runtime_resolve;
}
return lazy;
}
/* This code is used in dl-runtime.c to call the `fixup' function
and then redirect to the address it returns. */
#if !defined PROF && !__BOUNDED_POINTERS__
# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
.text\n\
.globl _dl_runtime_resolve\n\
.type _dl_runtime_resolve, @function\n\
_dl_runtime_resolve:\n\
add -12,sp # Preserve registers otherwise clobbered.\n\
mov d1,(20,sp)\n\
mov d0,(16,sp)\n\
mov r1,d0\n\
mov r0,d1\n\
call fixup,[],0 # Call resolver.\n\
mov d0,a0\n\
mov (12,sp),d1 # Copy return address back to mdr,\n\
mov d1,mdr # in case the callee returns with retf\n\
mov (16,sp),d0 # Get register content back.\n\
mov (20,sp),d1\n\
add 12,sp\n\
jmp (a0)\n\
.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
\n\
.globl _dl_runtime_profile\n\
.type _dl_runtime_profile, @function\n\
_dl_runtime_profile:\n\
add -12,sp # Preserve registers otherwise clobbered.\n\
mov d1,(20,sp)\n\
mov d0,(16,sp)\n\
mov r1,d0\n\
mov r0,d1\n\
call profile_fixup,[],0 # Call resolver.\n\
mov d0,a0\n\
mov (12,sp),d1 # Copy return address back to mdr,\n\
mov d1,mdr # in case the callee returns with retf\n\
mov (16,sp),d0 # Get register content back.\n\
mov (20,sp),d1\n\
add 12,sp\n\
jmp (a0)\n\
.size _dl_runtime_profile, .-_dl_runtime_profile\n\
.previous\n\
");
#else
# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\n\
.text\n\
.globl _dl_runtime_resolve\n\
.globl _dl_runtime_profile\n\
.type _dl_runtime_resolve, @function\n\
.type _dl_runtime_profile, @function\n\
_dl_runtime_resolve:\n\
_dl_runtime_profile:\n\
add -12,sp # Preserve registers otherwise clobbered.\n\
mov d1,(20,sp)\n\
mov d0,(16,sp)\n\
mov r1,d0\n\
mov r0,d1\n\
call profile_fixup,[],0 # Call resolver.\n\
mov d0,a0\n\
mov (12,sp),d1 # Copy return address back to mdr,\n\
mov d1,mdr # in case the callee returns with retf\n\
mov (16,sp),d0 # Get register content back.\n\
mov (20,sp),d1\n\
add 12,sp\n\
jmp (a0)\n\
.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
.size _dl_runtime_profile, .-_dl_runtime_profile\n\
.previous\n\
");
#endif
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
#define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL
/* 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 ("\n\
.text\n\
.globl _start\n\
.globl _dl_start_user\n\
_start:\n\
mov 0,a3 # Mark the top of the stack\n\
mov sp,a1\n\
add -20,sp # Prepare for function call\n\
mov a1,d0\n\
call _dl_start,[],0\n\
_dl_start_user:\n\
# Save the user entry point address in d2.\n\
mov d0,d2\n\
# Point a2 at the GOT.\n\
0: mov pc,a2\n\
add _GLOBAL_OFFSET_TABLE_ - (0b-.),a2\n\
# Store the highest stack address\n\
mov (__libc_stack_end@GOT,a2),a0\n\
mov a1,(a0)\n\
# See if we were run as a command with the executable file\n\
# name as an extra leading argument.\n\
mov (_dl_skip_args@GOT,a2),a0\n\
mov (a0),d0\n\
# Pop the original argument count.\n\
mov (20,sp),d3\n\
# Subtract _dl_skip_args from it.\n\
sub d0,d3\n\
# Adjust the stack pointer to skip _dl_skip_args words.\n\
asl2 d0\n\
mov sp,a0\n\
add d0,a0\n\
mov a0,sp\n\
# Push argc back on the stack.\n\
mov d3,(20,sp)\n\
# The special initializer gets called with the stack just\n\
# as the application's entry point will see it; it can\n\
# switch stacks if it moves these contents over.\n\
" RTLD_START_SPECIAL_INIT "\n\
# Load the parameters again.\n\
# (d0, d1, (12,sp), (16,sp)) = (_dl_loaded, argc, argv, envp)\n\
add 24,a0\n\
mov a0,(12,sp) # a0 is 24+sp\n\
mov d3,d1 # d3 contained argc\n\
inc d3\n\
asl2 d3 # d3 is now (argc+1)*4,\n\
add d3,a0 # the offset between argv and envp\n\
mov a0,(16,sp)\n\
mov (_rtld_local@GOTOFF,a2),d0\n\
# Call the function to run the initializers.\n\
call _dl_init@PLT,[],0\n\
# Pass our finalizer function to the user in d0, as per ELF ABI.\n\
mov (_dl_fini@GOT,a2),d0\n\
add 20,sp\n\
# Jump to the user's entry point.\n\
mov d2,a1\n\
jmp (a1)\n\
.previous\n\
");
#ifndef RTLD_START_SPECIAL_INIT
#define RTLD_START_SPECIAL_INIT /* nothing */
#endif
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
PLT entries should not be allowed to define the value.
ELF_RTYPE_CLASS_NOCOPY 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_MN10300_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
| (((type) == R_MN10300_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_MN10300_JMP_SLOT
static inline Elf32_Addr
elf_machine_fixup_plt (struct link_map *map, lookup_t t,
const Elf32_Rela *reloc,
Elf32_Addr *reloc_addr, Elf32_Addr value)
{
return *reloc_addr = value;
}
/* Return the final value of a plt relocation. */
static inline Elf32_Addr
elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
Elf32_Addr value)
{
return value + reloc->r_addend;
}
#endif /* !dl_machine_h */
#ifdef RESOLVE
/* The mn10300 never uses Elf32_Rel relocations. */
#define ELF_MACHINE_NO_REL 1
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
MAP is the object containing the reloc. */
static inline void
elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *sym, const struct r_found_version *version,
void *const reloc_addr_arg)
{
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
Elf32_Addr value, *reloc_addr;
/* Make sure we drop any previous alignment assumptions. */
asm ("" : "=r" (reloc_addr) : "0" (reloc_addr_arg));
#define COPY_UNALIGNED_WORD(sw, tw, align) \
{ \
unsigned long *__sl = (void*)&(sw), *__tl = (void*)&(tw); \
unsigned short *__ss = (void*)&(sw), *__ts = (void*)&(tw); \
unsigned char *__sc = (void*)&(sw), *__tc = (void*)&(tw); \
switch ((align)) \
{ \
case 0: \
*__tl = *__sl; \
break; \
case 2: \
*__ts++ = *__ss++; \
*__ts = *__ss; \
break; \
default: \
*__tc++ = *__sc++; \
*__tc++ = *__sc++; \
*__tc++ = *__sc++; \
*__tc = *__sc; \
break; \
} \
}
#define COPY_UNALIGNED_HALFWORD(sw, tw, align) \
{ \
unsigned short *__ss = (void*)&(sw), *__ts = (void*)&(tw); \
unsigned char *__sc = (void*)&(sw), *__tc = (void*)&(tw); \
switch ((align)) \
{ \
case 0: \
*__ts = *__ss; \
break; \
default: \
*__tc++ = *__sc++; \
*__tc = *__sc; \
break; \
} \
}
#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
if (__builtin_expect (r_type == R_MN10300_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. */
weak_extern (_dl_rtld_map);
if (map != &_dl_rtld_map) /* Already done in rtld itself. */
# endif
{
COPY_UNALIGNED_WORD (*reloc_addr, value, (int) reloc_addr & 3);
value += map->l_addr;
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
}
}
# ifndef RTLD_BOOTSTRAP
else if (__builtin_expect (r_type == R_MN10300_NONE, 0))
return;
# endif
else
#endif
{
#ifndef RTLD_BOOTSTRAP
const Elf32_Sym *const refsym = sym;
#endif
value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
if (sym)
value += sym->st_value;
value += reloc->r_addend; /* Assume copy relocs have zero addend. */
switch (r_type)
{
#ifndef RTLD_BOOTSTRAP
case R_MN10300_COPY:
if (sym == NULL)
/* This can happen in trace mode if an object could not be
found. */
break;
if (sym->st_size > refsym->st_size
|| (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
{
extern char **_dl_argv;
const char *strtab;
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
_dl_error_printf ("\
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
_dl_argv[0] ?: "<program name unknown>",
strtab + refsym->st_name);
}
memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
refsym->st_size));
break;
#endif
case R_MN10300_GLOB_DAT:
case R_MN10300_JMP_SLOT:
/* These addresses are always aligned. */
*reloc_addr = value;
break;
case R_MN10300_32:
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
break;
#ifndef RTLD_BOOTSTRAP
case R_MN10300_16:
COPY_UNALIGNED_HALFWORD (value, *reloc_addr, (int) reloc_addr & 1);
break;
case R_MN10300_8:
*(char *) reloc_addr = value;
break;
case R_MN10300_PCREL32:
value -= (Elf32_Addr) reloc_addr;
COPY_UNALIGNED_WORD (value, *reloc_addr, (int) reloc_addr & 3);
break;
case R_MN10300_PCREL16:
value -= (Elf32_Addr) reloc_addr;
COPY_UNALIGNED_HALFWORD (value, *reloc_addr, (int) reloc_addr & 1);
break;
case R_MN10300_PCREL8:
value -= (Elf32_Addr) reloc_addr;
*(char *) reloc_addr = (value - (Elf32_Addr) reloc_addr);
break;
#endif
case R_MN10300_NONE: /* Alright, Wilbur. */
break;
#if !defined RTLD_BOOTSTRAP || defined _NDEBUG
default:
_dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 0);
break;
#endif
}
}
}
static inline void
elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
void *const reloc_addr_arg)
{
Elf32_Addr value, *reloc_addr;
asm ("" : "=r" (reloc_addr) : "0" (reloc_addr_arg));
COPY_UNALIGNED_WORD (*reloc_addr, value, (int)reloc_addr & 3);
value += l_addr;
COPY_UNALIGNED_WORD (value, *reloc_addr, (int)reloc_addr & 3);
}
static inline void
elf_machine_lazy_rel (struct link_map *map,
Elf32_Addr l_addr, const Elf32_Rela *reloc)
{
unsigned long int const r_type = ELF32_R_TYPE (reloc->r_info);
/* Check for unexpected PLT reloc type. */
if (__builtin_expect (r_type, R_MN10300_JMP_SLOT) == R_MN10300_JMP_SLOT)
{
Elf32_Addr* const reloc_addr = (void *)(l_addr + reloc->r_offset);
Elf32_Addr value;
/* Perform a RELATIVE reloc on the .got entry that transfers
to the .plt. */
COPY_UNALIGNED_WORD (*reloc_addr, value, (int)reloc_addr & 3);
value += l_addr;
COPY_UNALIGNED_WORD (value, *reloc_addr, (int)reloc_addr & 3);
}
else if (__builtin_expect (r_type, R_MN10300_NONE) != R_MN10300_NONE)
_dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1);
}
#endif /* RESOLVE */

81
sysdeps/am33/elf/start.S Normal file
View File

@ -0,0 +1,81 @@
/* Startup code compliant to the ELF MN10300 ABI.
Copyright (C) 1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
Contributed by Alexandre Oliva <aoliva@redhat.com>
Based on ../../i386/elf/start.S.
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. */
/* This is the canonical entry point, usually the first thing in the text
segment. The SVR4/i386 ABI (pages 3-31, 3-32) says that when the entry
point runs, most registers' values are unspecified, except for:
a0 Contains a function pointer to be registered with `atexit'.
This is how the dynamic linker arranges to have DT_FINI
functions called for shared libraries that have been loaded
before this code runs.
sp The stack contains the arguments and environment:
(4,sp) argc
(8,sp) argv[0]
...
(4*(argc+1),sp) NULL
(4*(argc+2),sp) envp[0]
...
NULL
*/
#include "bp-sym.h"
.text
.globl _start
.type _start,@function
_start:
/* Extract the arguments as encoded on the stack and set up
the arguments for `main': argc, argv. envp will be determined
later in __libc_start_main. */
mov sp,a3
add -32,sp
mov a3,(28,sp) /* stack_end. */
mov d0,(24,sp) /* rtld_fini. */
mov _fini, d3
mov d3,(20,sp) /* fini. */
mov _init, d2
mov d2,(16,sp) /* init. */
inc4 a3
mov a3,(12,sp) /* argv. */
/* Set the initial frame pointer as 0, so that the bottom of
the stack is clearly marked. */
mov 0,a3
mov (32,sp), d1 /* argc. */
mov BP_SYM (main), d0 /* main. */
/* Call the user's main function, and exit with its value.
But let the libc call main. */
call BP_SYM (__libc_start_main),[],0
call BP_SYM (abort),[],0 /* Crash if somehow `exit' does return. */
/* Define a symbol for the first piece of initialized data. */
.data
.globl __data_start
__data_start:
.long 0
.weak data_start
data_start = __data_start

67
sysdeps/am33/fpu/bits/fenv.h Normal file
View File

@ -0,0 +1,67 @@
/* Copyright (C) 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on the corresponding file in the mips port.
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. */
#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* Define bits representing the exception. We use the EF bit
positions of the appropriate bits in the FPCR register. */
enum
{
FE_INEXACT = 0x01,
#define FE_INEXACT FE_INEXACT
FE_UNDERFLOW = 0x02,
#define FE_UNDERFLOW FE_UNDERFLOW
FE_OVERFLOW = 0x04,
#define FE_OVERFLOW FE_OVERFLOW
FE_DIVBYZERO = 0x08,
#define FE_DIVBYZERO FE_DIVBYZERO
FE_INVALID = 0x10,
#define FE_INVALID FE_INVALID
};
#define FE_ALL_EXCEPT \
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
/* The AM33/2.0 FPU supports only Round to nearest. Bits 3<<16 are
reserved to represent other rounding modes. */
enum
{
FE_TONEAREST = 0x00000,
#define FE_TONEAREST FE_TONEAREST
};
/* Type representing exception flags. */
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 *) -1)
#ifdef __USE_GNU
/* Floating-point environment where none of the exception is masked. */
# define FE_NOMASK_ENV ((__const fenv_t *) -2)
#endif

52
sysdeps/am33/fpu/fclrexcpt.c Normal file
View File

@ -0,0 +1,52 @@
/* Clear given exceptions in current floating-point environment.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fenv_libc.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__feclearexcept (int excepts)
{
fpu_control_t cw;
/* Mask out unsupported bits/exceptions. */
excepts &= FE_ALL_EXCEPT;
/* Read the complete control word. */
_FPU_GETCW (cw);
/* Clear exception flag bits and cause bits. EF bits are cleared by
assigning 1 to them (and there's no way to set them); other bits
are copied normally. */
cw &= ~((excepts << CAUSE_SHIFT) | FE_ALL_EXCEPT);
cw |= excepts;
/* Put the new data in effect. */
_FPU_SETFCW (cw);
/* Success. */
return 0;
}
versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);

42
sysdeps/am33/fpu/fedisblxcpt.c Normal file
View File

@ -0,0 +1,42 @@
/* Disable floating-point exceptions.
Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fenv_libc.h>
#include <fpu_control.h>
int
fedisableexcept (int excepts)
{
fpu_control_t new_exc, old_exc;
/* Get the current control word. */
_FPU_GETCW (new_exc);
old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT;
excepts &= FE_ALL_EXCEPT;
new_exc &= ~(excepts << ENABLE_SHIFT);
_FPU_SETCW (new_exc);
return old_exc;
}

42
sysdeps/am33/fpu/feenablxcpt.c Normal file
View File

@ -0,0 +1,42 @@
/* Enable floating-point exceptions.
Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fenv_libc.h>
#include <fpu_control.h>
int
feenableexcept (int excepts)
{
fpu_control_t new_exc, old_exc;
/* Get the current control word. */
_FPU_GETCW (new_exc);
old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT;
excepts &= FE_ALL_EXCEPT;
new_exc |= excepts << ENABLE_SHIFT;
_FPU_SETCW (new_exc);
return old_exc;
}

35
sysdeps/am33/fpu/fegetenv.c Normal file
View File

@ -0,0 +1,35 @@
/* Store current floating-point environment.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__fegetenv (fenv_t *envp)
{
_FPU_GETCW (*envp);
/* Success. */
return 0;
}
versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);

35
sysdeps/am33/fpu/fegetexcept.c Normal file
View File

@ -0,0 +1,35 @@
/* Get enabled floating-point exceptions.
Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fenv_libc.h>
#include <fpu_control.h>
int
fegetexcept (void)
{
unsigned int exc;
/* Get the current control word. */
_FPU_GETCW (exc);
return (exc & ENABLE_MASK) >> ENABLE_SHIFT;
}

35
sysdeps/am33/fpu/fegetround.c Normal file
View File

@ -0,0 +1,35 @@
/* Return current rounding direction.
Copyright (C) 1998, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fenv_libc.h>
#include <fpu_control.h>
int
fegetround (void)
{
int cw;
/* Get control word. */
_FPU_GETCW (cw);
return (cw & ROUND_MASK);
}

39
sysdeps/am33/fpu/feholdexcpt.c Normal file
View File

@ -0,0 +1,39 @@
/* Store current floating-point environment and clear exceptions.
Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
int
feholdexcept (fenv_t *envp)
{
fpu_control_t cw;
/* Save the current state. */
_FPU_GETCW (cw);
*envp = cw;
/* Clear all exception enable bits and flags. */
cw &= ~(_FPU_MASK_V|_FPU_MASK_Z|_FPU_MASK_O|_FPU_MASK_U|_FPU_MASK_I);
_FPU_SETFCW (cw);
return 0;
}

33
sysdeps/am33/fpu/fenv_libc.h Normal file
View File

@ -0,0 +1,33 @@
/* Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on the corresponding file in the mips port.
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. */
#ifndef _FENV_LIBC_H
#define _FENV_LIBC_H 1
/* Mask for enabling exceptions and for the CAUSE bits. */
#define ENABLE_MASK 0x003E0U
#define CAUSE_MASK 0x07C00U
#define ROUND_MASK 0x30000U
/* Shift for FE_* flags to get up to the ENABLE bits and the CAUSE bits. */
#define ENABLE_SHIFT 5
#define CAUSE_SHIFT 10
#endif /* _FENV_LIBC_H */

60
sysdeps/am33/fpu/fesetenv.c Normal file
View File

@ -0,0 +1,60 @@
/* Install given floating-point environment.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__fesetenv (const fenv_t *envp)
{
fpu_control_t cw;
/* We want to clear all EF bits for the default end IEEE. */
if (envp == FE_DFL_ENV)
_FPU_SETFCW (_FPU_DEFAULT|FE_ALL_EXCEPT);
else if (envp == FE_NOMASK_ENV)
_FPU_SETFCW (_FPU_IEEE|FE_ALL_EXCEPT);
else
{
fpu_control_t temp;
_FPU_GETCW (temp);
cw = *envp;
/* If EF bits are cleared and the user requests them to be set,
we have to fail, because there's no way to do it. */
if (~temp & cw & FE_ALL_EXCEPT)
return -1;
/* We clear EF bits by storing a 1 in them, so flip the
FE_ALL_EXCEPT bits. */
cw = (cw & ~FE_ALL_EXCEPT) | (~cw & FE_ALL_EXCEPT);
_FPU_SETFCW (cw);
}
/* Success. */
return 0;
}
libm_hidden_ver (__fesetenv, fesetenv)
versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);

29
sysdeps/am33/fpu/fesetround.c Normal file
View File

@ -0,0 +1,29 @@
/* Set current rounding direction.
Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
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. */
#include <fenv.h>
int
fesetround (int round)
{
/* The only supported rounding mode is to-nearest. Just check
whether we're switching to it. */
return (round != FE_TONEAREST);
}

47
sysdeps/am33/fpu/feupdateenv.c Normal file
View File

@ -0,0 +1,47 @@
/* Install given floating-point environment and raise exceptions.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__feupdateenv (const fenv_t *envp)
{
int temp;
/* Save current exceptions. */
_FPU_GETCW (temp);
temp &= FE_ALL_EXCEPT;
/* Install new environment. */
fesetenv (envp);
/* Raise the safed exception. Incidently for us the implementation
defined format of the values in objects of type fexcept_t is the
same as the ones specified using the FE_* constants. */
feraiseexcept (temp);
/* Success. */
return 0;
}
versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);

44
sysdeps/am33/fpu/fgetexcptflg.c Normal file
View File

@ -0,0 +1,44 @@
/* Store current representation for exceptions.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__fegetexceptflag (fexcept_t *flagp, int excepts)
{
fexcept_t temp;
/* Get the current exceptions. */
_FPU_GETCW (temp);
/* We only save the relevant bits here. In particular, care has to be
taken with the CAUSE bits, as an inadvertent restore later on could
generate unexpected exceptions. */
*flagp = temp & excepts & FE_ALL_EXCEPT;
/* Success. */
return 0;
}
versioned_symbol (libm, __fegetexceptflag, fegetexceptflag, GLIBC_2_2);

75
sysdeps/am33/fpu/fpu_control.h Normal file
View File

@ -0,0 +1,75 @@
/* FPU control word bits. AM33/2.0 version.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on the corresponding file in the mips port.
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. */
#ifndef _FPU_CONTROL_H
#define _FPU_CONTROL_H
/* AM33/2.0 FPU floating point control register bits.
*
* 31-22 -> reserved
* 21-18 -> floating-point condition codes (L, G, E, U)
* 17-16 -> rounding modes (00 is to-nearest; other values are reserved
* 15 -> reserved (read as 0, write with 0)
* 14-10 -> Exception Cause (inValid, divZero, Overflow, Underflow, Inexact)
* 9- 5 -> Exception Enable
* 4- 0 -> Exception Flag, cleared when exception cause is set
*/
#include <features.h>
#include <fenv.h>
/* masking of interrupts */
#define _FPU_MASK_V 0x0200 /* Invalid operation */
#define _FPU_MASK_Z 0x0100 /* Division by zero */
#define _FPU_MASK_O 0x0080 /* Overflow */
#define _FPU_MASK_U 0x0040 /* Underflow */
#define _FPU_MASK_I 0x0020 /* Inexact operation */
/* rounding control */
#define _FPU_RC_NEAREST 0x0 /* Only available mode */
#define _FPU_RESERVED 0xffc08000 /* Reserved bits in fpcr */
/* The fdlibm code requires strict IEEE double precision arithmetic,
and no interrupts for exceptions, rounding to nearest. */
#define _FPU_DEFAULT 0x0000001f
/* IEEE: same as above, but exceptions */
#define _FPU_IEEE 0x000003ff
/* Type of the control word. */
typedef unsigned int fpu_control_t;
/* Macros for accessing the hardware control word. _FPU_SETCW is
defined such that it won't modify the EF bits, that are cleared
when assigned bits that are set. Use SETFCW to get them actually
reset. */
#define _FPU_SETFCW(cw) __asm__ ("fmov %0,fpcr" : : "ri" (cw))
#define _FPU_SETCW(cw) _FPU_SETFCW((cw) & ~FE_ALL_EXCEPT)
#define _FPU_GETCW(cw) __asm__ ("fmov fpcr,%0" : "=r" (cw))
/* Default control word set at startup. */
extern fpu_control_t __fpu_control;
#endif /* fpu_control.h */

79
sysdeps/am33/fpu/fraiseexcpt.c Normal file
View File

@ -0,0 +1,79 @@
/* Raise given exceptions.
Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the M68K port.
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. */
#include <fenv.h>
#include <float.h>
#include <math.h>
#include <shlib-compat.h>
int
__feraiseexcept (int excepts)
{
/* Raise exceptions represented by EXCEPTS. But we must raise only one
signal at a time. It is important that if the overflow/underflow
exception and the divide by zero exception are given at the same
time, the overflow/underflow exception follows the divide by zero
exception. */
/* First: invalid exception. */
if (excepts & FE_INVALID)
{
/* One example of a invalid operation is 0 * Infinity. */
float x = HUGE_VALF, y = 0.0f;
__asm__ __volatile__ ("fmul %1,%0" : "+f" (x) : "f" (y));
}
/* Next: division by zero. */
if (excepts & FE_DIVBYZERO)
{
float x = 1.0f, y = 0.0f;
__asm__ __volatile__ ("fdiv %1,%0" : "+f" (x) : "f" (y));
}
/* Next: overflow. */
if (excepts & FE_OVERFLOW)
{
float x = FLT_MAX;
__asm__ __volatile__ ("fmul %0,%0" : "+f" (x));
}
/* Next: underflow. */
if (excepts & FE_UNDERFLOW)
{
float x = -FLT_MIN;
__asm__ __volatile__ ("fmul %0,%0" : "+f" (x));
}
/* Last: inexact. */
if (excepts & FE_INEXACT)
{
float x = 1.0f, y = 3.0f;
__asm__ __volatile__ ("fdiv %1,%0" : "=f" (x) : "f" (y));
}
/* Success. */
return 0;
}
libm_hidden_ver (__feraiseexcept, feraiseexcept)
versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);

57
sysdeps/am33/fpu/fsetexcptflg.c Normal file
View File

@ -0,0 +1,57 @@
/* Set floating-point environment exception handling.
Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__fesetexceptflag (const fexcept_t *flagp, int excepts)
{
fpu_control_t cw, temp;
/* Get the current exceptions. */
_FPU_GETCW (cw);
/* Make sure the flags we want restored are legal. */
excepts &= FE_ALL_EXCEPT;
temp = *flagp & excepts;
/* If EF bits are clear and the user requests them to be set,
we have to fail, because there's no way to do it. */
if (~(cw & excepts) & temp)
return -1;
/* We clear EF bits by storing a 1 in them, so flip the
FE_ALL_EXCEPT bits. */
temp = (~temp & FE_ALL_EXCEPT);
/* Now clear the bits called for, and copy them in from flagp. Note that
we ignore all non-flag bits from *flagp, so they don't matter. */
cw = (cw & ~FE_ALL_EXCEPT) | temp;
_FPU_SETFCW (cw);
/* Success. */
return 0;
}
versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);

34
sysdeps/am33/fpu/ftestexcept.c Normal file
View File

@ -0,0 +1,34 @@
/* Test exception in current environment.
Copyright (C) 1998, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
based on corresponding file in the MIPS port.
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. */
#include <fenv.h>
#include <fpu_control.h>
int
fetestexcept (int excepts)
{
int cw;
/* Get current control word. */
_FPU_GETCW (cw);
return cw & excepts & FE_ALL_EXCEPT;
}

74
sysdeps/am33/linuxthreads/pspinlock.c Normal file
View File

@ -0,0 +1,74 @@
/* POSIX spinlock implementation. AM33 version.
Copyright 2001 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <pthread.h>
#include "internals.h"
int
__pthread_spin_lock (pthread_spinlock_t *lock)
{
__asm__ __volatile__("1: bset %1, (%0); beq 1b"
: : "a" (lock), "d" (1) : "memory");
return 0;
}
weak_alias (__pthread_spin_lock, pthread_spin_lock)
int
__pthread_spin_trylock (pthread_spinlock_t *lock)
{
int oldval = 1;
__asm__ __volatile__ ("bset %0, (%1); beq 1f; clr %0; 1:" :
"+d" (oldval) : "a" (lock) : "memory");
return oldval ? EBUSY : 0;
}
weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
int
__pthread_spin_unlock (pthread_spinlock_t *lock)
{
*lock = 0;
return 0;
}
weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
int
__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
{
/* We can ignore the `pshared' parameter. Since we are busy-waiting
all processes which can access the memory location `lock' points
to can use the spinlock. */
*lock = 0;
return 0;
}
weak_alias (__pthread_spin_init, pthread_spin_init)
int
__pthread_spin_destroy (pthread_spinlock_t *lock)
{
/* Nothing to do. */
return 0;
}
weak_alias (__pthread_spin_destroy, pthread_spin_destroy)

68
sysdeps/am33/linuxthreads/pt-machine.h Normal file
View File

@ -0,0 +1,68 @@
/* Machine-dependent pthreads configuration and inline functions.
am33 version.
Copyright (C) 1996,1997,1998,1999,2000,2001, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
Based on ../i386/pt-machine.h.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _PT_MACHINE_H
#define _PT_MACHINE_H 1
#ifndef __ASSEMBLER__
#ifndef PT_EI
# define PT_EI extern inline
#endif
/* Get some notion of the current stack. Need not be exactly the top
of the stack, just something somewhere in the current frame. */
#define CURRENT_STACK_FRAME __builtin_frame_address (0)
/* Spinlock implementation; required. */
PT_EI long int
testandset (int *spinlock)
{
long int ret = 1;
/* This won't test&set the entire int, only the least significant
byte. I hope this doesn't matter, since we can't do better. */
__asm__ __volatile__ ("bset %0, %1; bne 1f; clr %0; 1:" :
"+d" (ret), "+m" (*(volatile int *)spinlock));
return ret;
}
PT_EI int
get_eflags (void)
{
int res;
__asm__ __volatile__ ("mov psw,%0" : "=d" (res));
return res;
}
PT_EI void
set_eflags (int newflags)
{
__asm__ __volatile__ ("mov %0,psw" : : "d" (newflags) : "cc");
}
#endif /* __ASSEMBLER__ */
#endif /* pt-machine.h */

23
sysdeps/am33/memusage.h Normal file
View File

@ -0,0 +1,23 @@
/* Copyright 2000, 2001 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. */
#define GETSP() ({ uintptr_t stack_ptr; \
asm ("mov sp,%0" : "=a" (stack_ptr)); \
stack_ptr; })
#include <sysdeps/generic/memusage.h>

5
sysdeps/am33/preconfigure Normal file
View File

@ -0,0 +1,5 @@
case "$machine" in
am33*)
base_machine=am33 machine=am33
;;
esac

80
sysdeps/am33/setjmp.S Normal file
View File

@ -0,0 +1,80 @@
/* setjmp for am33.
Copyright (C) 2001, 2004 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. */
#include <sysdep.h>
#define _ASM
#define _SETJMP_H
#include <bits/setjmp.h>
#include <asm-syntax.h>
ENTRY (__sigsetjmp)
.Lsigsetjmp:
/* Save registers. */
mov d0,a0
mov d2,(0,a0)
mov d3,(4,a0)
mov mdr,d0
mov d0,(8,a0)
/* Restore d0 for __sigjmp_save. */
mov a0,d0
mov a2,(12,a0)
mov a3,(16,a0)
mov sp,a1
mov a1,(20,a0)
add 24,a0
mov r4,(a0+)
mov r5,(a0+)
mov r6,(a0+)
mov r7,(a0+)
#ifdef __AM33_2__
fmov fs4,(a0+)
fmov fs5,(a0+)
fmov fs6,(a0+)
fmov fs7,(a0+)
fmov fs8,(a0+)
fmov fs9,(a0+)
fmov fs10,(a0+)
fmov fs11,(a0+)
fmov fs12,(a0+)
fmov fs13,(a0+)
fmov fs14,(a0+)
fmov fs15,(a0+)
fmov fs16,(a0+)
fmov fs17,(a0+)
fmov fs18,(a0+)
fmov fs19,(a0+)
#endif
/* Make a tail call to __sigjmp_save; it takes the same args. */
jmp __sigjmp_save
END (__sigsetjmp)
/* BSD `_setjmp' entry point to `sigsetjmp (..., 1)'. */
ENTRY (setjmp)
/* Tail-call setsetjmp with savesigs==1. */
mov 1,d1
bra .Lsigsetjmp
END (setjmp)
/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. */
ENTRY (_setjmp)
/* Tail-call setsetjmp with savesigs==0. */
clr d1
bra .Lsigsetjmp
END (_setjmp)

1
sysdeps/am33/shlib-versions Normal file
View File

@ -0,0 +1 @@
am33.*-.*-linux.* DEFAULT GLIBC_2.2.5

28
sysdeps/am33/stackinfo.h Normal file
View File

@ -0,0 +1,28 @@
/* Copyright 2001 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. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
/* On am33 the stack grows down. */
#define _STACK_GROWS_DOWN 1
#endif /* stackinfo.h */

123
sysdeps/am33/sys/ucontext.h Normal file
View File

@ -0,0 +1,123 @@
/* Copyright 1997, 1999, 2000, 2002 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* AM33/2.0 context switching support. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#include <features.h>
#include <signal.h>
/* Type for general register. */
typedef int greg_t;
/* Number of general registers. */
#define NGREG 28
/* Container for all general registers. */
typedef greg_t gregset_t[NGREG];
/* Number of each register is the `gregset_t' array. */
enum
{
REG_D0 = 0,
#define REG_D0 REG_D0
REG_D1,
#define REG_D1 REG_D1
REG_D2,
#define REG_D2 REG_D2
REG_D3,
#define REG_D3 REG_D3
REG_A0,
#define REG_A0 REG_A0
REG_A1,
#define REG_A1 REG_A1
REG_A2,
#define REG_A2 REG_A2
REG_A3,
#define REG_A3 REG_A3
REG_E0,
#define REG_E0 REG_E0
REG_E1,
#define REG_E1 REG_E1
REG_E2,
#define REG_E2 REG_E2
REG_E3,
#define REG_E3 REG_E3
REG_E4,
#define REG_E4 REG_E4
REG_E5,
#define REG_E5 REG_E5
REG_E6,
#define REG_E6 REG_E6
REG_E7,
#define REG_E7 REG_E7
REG_LAR,
#define REG_LAR REG_LAR
REG_LIR,
#define REG_LIR REG_LIR
REG_MDR,
#define REG_MDR REG_MDR
REG_MCVF,
#define REG_MCVF REG_MCVF
REG_MCRL,
#define REG_MCRL REG_MCRL
REG_MCRH,
#define REG_MCRH REG_MCRH
REG_MDRQ,
#define REG_MDRQ REG_MDRQ
REG_SP,
#define REG_SP REG_SP
REG_EPSW,
#define REG_EPSW REG_EPSW
REG_PC,
#define REG_PC REG_PC
};
typedef int freg_t;
/* Structure to describe FPU registers. */
typedef struct {
union {
double fp_dregs[16];
float fp_fregs[32];
freg_t fp_regs[32];
} regs;
freg_t fpcr;
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
gregset_t gregs;
fpregset_t fpregs;
} mcontext_t;
/* Userlevel context. */
typedef struct ucontext
{
unsigned long int uc_flags;
struct ucontext *uc_link;
__sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
long int uc_filler[5];
} ucontext_t;
#endif /* sys/ucontext.h */

82
sysdeps/am33/sysdep.h Normal file
View File

@ -0,0 +1,82 @@
/* Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/sysdep.h.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdeps/generic/sysdep.h>
#ifdef __ASSEMBLER__
/* Syntactic details of assembler. */
#ifdef HAVE_ELF
/* For ELF we need the `.type' directive to make shared libs work right. */
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
/* In ELF C symbols are asm symbols. */
#undef NO_UNDERSCORES
#define NO_UNDERSCORES
#else
#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */
#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */
#endif
/* Define an entry point visible from C. */
#define ENTRY(name) \
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
C_LABEL(name) \
CALL_MCOUNT
#undef END
#define END(name) \
ASM_SIZE_DIRECTIVE(name) \
/* If compiled for profiling, call `mcount' at the start of each function. */
#ifdef PROF
/* The mcount code relies on a normal frame pointer being on the stack
to locate our caller, so push one just for its benefit. */
#define CALL_MCOUNT \
movm [a3],(sp); mov sp,a3; add -12,sp; \
call JUMPTARGET(mcount),[],0; add 12,sp; movm (sp),[a3];
#else
#define CALL_MCOUNT /* Do nothing. */
#endif
#ifdef NO_UNDERSCORES
/* 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
#endif
#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) name##@PLT
#else
#define JUMPTARGET(name) name
#endif
/* Local label name for asm code. */
#ifndef L
#define L(name) name
#endif
#endif /* __ASSEMBLER__ */

64
sysdeps/unix/am33/sysdep.S Normal file
View File

@ -0,0 +1,64 @@
/* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000, 2001
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/sysdep.S.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#define _ERRNO_H
#include <bits/errno.h>
.globl C_SYMBOL_NAME(errno)
.globl syscall_error
#undef syscall_error
#ifdef NO_UNDERSCORES
__syscall_error:
#else
syscall_error:
#endif
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
cmp EWOULDBLOCK_sys,d0 /* Is it the old EWOULDBLOCK? */
bne .Lnotb /* Branch if not. */
mov EAGAIN,d0 /* Yes; translate it to EAGAIN. */
.Lnotb:
#endif
#ifndef PIC
# ifndef _LIBC_REENTRANT
mov d0,(C_SYMBOL_NAME (errno))
# else
movm [d2],(sp)
add -12,sp
mov d0,d2
call __errno_location,[],0
mov d2,(a0)
add 12,sp
movm (sp),[d2]
# endif
#else
# error "This shouldn't be assembled for PIC"
#endif
mov -1,d0
mov d0,a0
ret
#undef __syscall_error
END (__syscall_error)

33
sysdeps/unix/am33/sysdep.h Normal file
View File

@ -0,0 +1,33 @@
/* Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/sysdep.h.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdeps/unix/sysdep.h>
#include "../../am33/sysdep.h"
#ifdef __ASSEMBLER__
#define r0 d0 /* Normal return-value register. */
#define r1 !!!! /* Secondary return-value register. */
#define scratch d1 /* Call-clobbered register for random use. */
#define MOVE(x,y) mov x, y
#define ret ret [],0
#endif /* __ASSEMBLER__ */

3
sysdeps/unix/sysv/linux/am33/Makefile Normal file
View File

@ -0,0 +1,3 @@
ifeq ($(subdir),misc)
sysdep_routines += setfsgid setfsuid
endif

179
sysdeps/unix/sysv/linux/am33/bits/fcntl.h Normal file
View File

@ -0,0 +1,179 @@
/* O_*, F_*, FD_* bit values for Linux.
Copyright (C) 1995, 1996, 1997, 1998, 2000, 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _FCNTL_H
# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
#endif
#include <sys/types.h>
/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
located on an ext2 file system */
#define O_ACCMODE 0003
#define O_RDONLY 00
#define O_WRONLY 01
#define O_RDWR 02
#define O_CREAT 0100 /* not fcntl */
#define O_EXCL 0200 /* not fcntl */
#define O_NOCTTY 0400 /* not fcntl */
#define O_TRUNC 01000 /* not fcntl */
#define O_APPEND 02000
#define O_NONBLOCK 04000
#define O_NDELAY O_NONBLOCK
#define O_SYNC 010000
#define O_FSYNC O_SYNC
#define O_ASYNC 020000
#ifdef __USE_GNU
# define O_DIRECT 040000 /* Direct disk access. */
# define O_DIRECTORY 0200000 /* Must be a directory. */
# define O_NOFOLLOW 0400000 /* Do not follow links. */
#endif
/* For now Linux has synchronisity options for data and read operations.
We define the symbols here but let them do the same as O_SYNC since
this is a superset. */
#if defined __USE_POSIX199309 || defined __USE_UNIX98
# define O_DSYNC O_SYNC /* Synchronize data. */
# define O_RSYNC O_SYNC /* Synchronize read operations. */
#endif
#ifdef __USE_LARGEFILE64
# define O_LARGEFILE 0100000
#endif
/* Values for the second argument to `fcntl'. */
#define F_DUPFD 0 /* Duplicate file descriptor. */
#define F_GETFD 1 /* Get file descriptor flags. */
#define F_SETFD 2 /* Set file descriptor flags. */
#define F_GETFL 3 /* Get file status flags. */
#define F_SETFL 4 /* Set file status flags. */
#ifndef __USE_FILE_OFFSET64
# define F_GETLK 5 /* Get record locking info. */
# define F_SETLK 6 /* Set record locking info (non-blocking). */
# define F_SETLKW 7 /* Set record locking info (blocking). */
#else
# define F_GETLK F_GETLK64 /* Get record locking info. */
# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
#endif
#define F_GETLK64 12 /* Get record locking info. */
#define F_SETLK64 13 /* Set record locking info (non-blocking). */
#define F_SETLKW64 14 /* Set record locking info (blocking). */
#if defined __USE_BSD || defined __USE_XOPEN2K
# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
#endif
#ifdef __USE_GNU
# define F_SETSIG 10 /* Set number of signal to be sent. */
# define F_GETSIG 11 /* Get number of signal to be sent. */
#endif
#ifdef __USE_GNU
# define F_SETLEASE 1024 /* Set a lease. */
# define F_GETLEASE 1025 /* Enquire what lease is active. */
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
#define F_RDLCK 0 /* Read lock. */
#define F_WRLCK 1 /* Write lock. */
#define F_UNLCK 2 /* Remove lock. */
/* For old implementation of bsd flock(). */
#define F_EXLCK 4 /* or 3 */
#define F_SHLCK 8 /* or 4 */
#ifdef __USE_BSD
/* Operations for bsd flock(), also used by the kernel implementation. */
# define LOCK_SH 1 /* shared lock */
# define LOCK_EX 2 /* exclusive lock */
# define LOCK_NB 4 /* or'd with one of the above to prevent
blocking */
# define LOCK_UN 8 /* remove lock */
#endif
#ifdef __USE_GNU
# define LOCK_MAND 32 /* This is a mandatory flock: */
# define LOCK_READ 64 /* ... which allows concurrent read operations. */
# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
#endif
#ifdef __USE_GNU
/* Types of directory notifications that may be requested with F_NOTIFY. */
# define DN_ACCESS 0x00000001 /* File accessed. */
# define DN_MODIFY 0x00000002 /* File modified. */
# define DN_CREATE 0x00000004 /* File created. */
# define DN_DELETE 0x00000008 /* File removed. */
# define DN_RENAME 0x00000010 /* File renamed. */
# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
#endif
struct flock
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
#ifndef __USE_FILE_OFFSET64
__off_t l_start; /* Offset where the lock begins. */
__off_t l_len; /* Size of the locked area; zero means until EOF. */
#else
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
#endif
__pid_t l_pid; /* Process holding the lock. */
};
#ifdef __USE_LARGEFILE64
struct flock64
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
__pid_t l_pid; /* Process holding the lock. */
};
#endif
/* Define some more compatibility macros to be backward compatible with
BSD systems which did not managed to hide these kernel macros. */
#ifdef __USE_BSD
# define FAPPEND O_APPEND
# define FFSYNC O_FSYNC
# define FASYNC O_ASYNC
# define FNONBLOCK O_NONBLOCK
# define FNDELAY O_NDELAY
#endif /* Use BSD. */
/* Advise to `posix_fadvise'. */
#ifdef __USE_XOPEN2K
# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif

97
sysdeps/unix/sysv/linux/am33/bits/mman.h Normal file
View File

@ -0,0 +1,97 @@
/* Definitions for POSIX memory map interface. Linux/AM33 version.
Copyright (C) 1997, 2000, 2001, 2004 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#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. */
/* Protections are chosen from these bits, OR'd together. The
implementation does not necessarily support PROT_EXEC or PROT_WRITE
without PROT_READ. The only guarantees are that no writing will be
allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
#define PROT_READ 0x1 /* Page can be read. */
#define PROT_WRITE 0x2 /* Page can be written. */
#define PROT_EXEC 0x4 /* Page can be executed. */
#define PROT_NONE 0x0 /* Page can not be accessed. */
#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
growsdown vma (mprotect only). */
#define PROT_GROWSUP 0x02000000 /* Extend change to start of
growsup vma (mprotect only). */
/* Sharing types (must choose one and only one of these). */
#define MAP_SHARED 0x01 /* Share changes. */
#define MAP_PRIVATE 0x02 /* Changes are private. */
#ifdef __USE_MISC
# define MAP_TYPE 0x0f /* Mask for type of mapping. */
#endif
/* Other flags. */
#define MAP_FIXED 0x10 /* Interpret addr exactly. */
#ifdef __USE_MISC
# define MAP_FILE 0
# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
# define MAP_ANON MAP_ANONYMOUS
#endif
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */
# define MAP_DENYWRITE 0x0800 /* ETXTBSY */
# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */
# define MAP_LOCKED 0x2000 /* Lock the mapping. */
# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */
#endif
/* Flags to `msync'. */
#define MS_ASYNC 1 /* Sync memory asynchronously. */
#define MS_SYNC 4 /* Synchronous memory sync. */
#define MS_INVALIDATE 2 /* Invalidate the caches. */
/* Flags for `mlockall'. */
#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
#define MCL_FUTURE 2 /* Lock all additions to address
space. */
/* Flags for `mremap'. */
#ifdef __USE_GNU
# define MREMAP_MAYMOVE 1
#endif
/* Advice to `madvise'. */
#ifdef __USE_BSD
# define MADV_NORMAL 0 /* No further special treatment. */
# define MADV_RANDOM 1 /* Expect random page references. */
# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define MADV_WILLNEED 3 /* Will need these pages. */
# define MADV_DONTNEED 4 /* Don't need these pages. */
#endif
/* The POSIX people had to invent similar names for the same things. */
#ifdef __USE_XOPEN2K
# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
#endif

46
sysdeps/unix/sysv/linux/am33/brk.c Normal file
View File

@ -0,0 +1,46 @@
/* brk system call for Linux/am33.
Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/brk.c.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <unistd.h>
#include <sysdep.h>
/* This must be initialized data because commons can't have aliases. */
void *__curbrk = 0;
int
__brk (void *addr)
{
void *newbrk;
newbrk = INLINE_SYSCALL (brk, 1, __ptrvalue (addr));
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
weak_alias (__brk, brk)

1
sysdeps/unix/sysv/linux/am33/chown.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/chown.c>

81
sysdeps/unix/sysv/linux/am33/clone.S Normal file
View File

@ -0,0 +1,81 @@
/* Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/clone.S.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* clone() is even more special than fork() as it mucks with stacks
and invokes a function in the right context after its all over. */
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#include <asm-syntax.h>
#include <bp-sym.h>
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
.text
ENTRY (BP_SYM (__clone))
/* Sanity check arguments. */
cmp 0,d0 /* no NULL function pointers */
beq L(error_inval)
cmp 0,d1 /* no NULL stack pointers */
beq L(error_inval)
/* Allocate room for a function call in the new stack, and
store fn and arg in it. They will be read back in
thread_start. */
mov d1,a0
sub 12,a0
mov d0,(a0)
mov (16,sp),d1
mov d1,(4,a0)
/* Do the system call */
mov a0,d1
mov (12,sp),a0
mov SYS_ify(clone),d0
syscall 0
cmp 0,d0
beq thread_start
blt L(to_SYSCALL_ERROR_LABEL)
L(pseudo_end):
ret
L(error_inval):
mov -EINVAL,d0
L(to_SYSCALL_ERROR_LABEL):
jmp SYSCALL_ERROR_LABEL
thread_start:
mov 0,a3 /* terminate the stack frame */
mov (4,sp),d0
mov (sp),a0
calls (a0)
#ifdef PIC
L(here):
mov pc,a2
add _GLOBAL_OFFSET_TABLE_-(L(here) - .),a2
#endif
call JUMPTARGET (_exit),[],0
PSEUDO_END (BP_SYM (__clone))
weak_alias (BP_SYM (__clone), BP_SYM (clone))

4
sysdeps/unix/sysv/linux/am33/configure vendored Executable file
View File

@ -0,0 +1,4 @@
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
# Local configure fragment for am33/sysdeps/unix/sysv/linux/am33
arch_minimum_kernel=2.4.0

4
sysdeps/unix/sysv/linux/am33/configure.in Normal file
View File

@ -0,0 +1,4 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for am33/sysdeps/unix/sysv/linux/am33
arch_minimum_kernel=2.4.0

1
sysdeps/unix/sysv/linux/am33/fchown.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/fchown.c>

1
sysdeps/unix/sysv/linux/am33/fcntl.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/fcntl.c>

1
sysdeps/unix/sysv/linux/am33/fxstat.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/fxstat.c>

1
sysdeps/unix/sysv/linux/am33/getegid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getegid.c>

1
sysdeps/unix/sysv/linux/am33/geteuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/geteuid.c>

1
sysdeps/unix/sysv/linux/am33/getgid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getgid.c>

1
sysdeps/unix/sysv/linux/am33/getgroups.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getgroups.c>

1
sysdeps/unix/sysv/linux/am33/getmsg.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getmsg.c>

1
sysdeps/unix/sysv/linux/am33/getresgid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getresgid.c>

1
sysdeps/unix/sysv/linux/am33/getresuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getresuid.c>

1
sysdeps/unix/sysv/linux/am33/getrlimit.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getrlimit.c>

1
sysdeps/unix/sysv/linux/am33/getuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/getuid.c>

1
sysdeps/unix/sysv/linux/am33/lchown.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/lchown.c>

1
sysdeps/unix/sysv/linux/am33/lockf64.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/lockf64.c>

1
sysdeps/unix/sysv/linux/am33/lxstat.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/lxstat.c>

27
sysdeps/unix/sysv/linux/am33/profil-counter.h Normal file
View File

@ -0,0 +1,27 @@
/* Low-level statistical profiling support function. Linux/am33 version.
Copyright (C) 1996, 1997, 1998, 2001 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <signal.h>
#include <sigcontextinfo.h>
static void
profil_counter (int signo, SIGCONTEXT scp)
{
profil_count ((void *) GET_PC (scp));
}

1
sysdeps/unix/sysv/linux/am33/putmsg.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/putmsg.c>

1
sysdeps/unix/sysv/linux/am33/setegid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setegid.c>

1
sysdeps/unix/sysv/linux/am33/seteuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/seteuid.c>

1
sysdeps/unix/sysv/linux/am33/setfsgid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setfsgid.c>

1
sysdeps/unix/sysv/linux/am33/setfsuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setfsuid.c>

1
sysdeps/unix/sysv/linux/am33/setgid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setgid.c>

1
sysdeps/unix/sysv/linux/am33/setgroups.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setgroups.c>

1
sysdeps/unix/sysv/linux/am33/setregid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setregid.c>

1
sysdeps/unix/sysv/linux/am33/setresgid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setresgid.c>

1
sysdeps/unix/sysv/linux/am33/setresuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setresuid.c>

1
sysdeps/unix/sysv/linux/am33/setreuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setreuid.c>

1
sysdeps/unix/sysv/linux/am33/setrlimit.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setrlimit.c>

1
sysdeps/unix/sysv/linux/am33/setuid.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/setuid.c>

73
sysdeps/unix/sysv/linux/am33/socket.S Normal file
View File

@ -0,0 +1,73 @@
/* Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/socket.S.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include <socketcall.h>
#define P(a, b) P2(a, b)
#define P2(a, b) a##b
.text
/* The socket-oriented system calls are handled unusally in Linux.
They are all gated through the single `socketcall' system call number.
`socketcall' takes two arguments: the first is the subcode, specifying
which socket function is being called; and the second is a pointer to
the arguments to the specific function.
The .S files for the other calls just #define socket and #include this. */
#ifndef __socket
#ifndef NO_WEAK_ALIAS
#define __socket P(__,socket)
#else
#define __socket socket
#endif
#endif
.globl __socket
ENTRY (__socket)
mov d0,(4,sp)
mov d1,(8,sp)
mov SYS_ify(socketcall),d0 /* System call number in d0. */
/* Use ## so `socket' is a separate token that might be #define'd. */
mov P(SOCKOP_,socket),a0 /* Subcode is first arg to syscall. */
mov sp,d1
add 4,d1 /* Address of args is 2nd arg. */
/* Do the system call trap. */
syscall 0
/* d0 is < 0 if there was an error. */
cmp -126,d0
bls L(pseudo_end)
jmp SYSCALL_ERROR_LABEL
/* Successful; return the syscall's value. */
L(pseudo_end):
ret
PSEUDO_END (__socket)
#ifndef NO_WEAK_ALIAS
weak_alias (__socket, socket)
#endif

43
sysdeps/unix/sysv/linux/am33/syscall.S Normal file
View File

@ -0,0 +1,43 @@
/* Copyright (C) 1995, 1996, 1998, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/syscall.S.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
/* Please consult the file sysdeps/unix/sysv/linux/am33/sysdep.h for
more information about the value -126 used below.*/
.text
ENTRY (syscall)
movm [d2,d3,a2,a3],(sp) /* Save register contents. */
mov d1,a0
mov (28,sp),d1
mov (32,sp),a3
mov (36,sp),a2
mov (40,sp),d3
mov (44,sp),d2
syscall 0 /* Do the system call. */
movm (sp),[d2,d3,a2,a3] /* Restore register contents. */
cmp -126,d0 /* Check for error. */
bls L(pseudo_end)
jmp SYSCALL_ERROR_LABEL /* Jump to error handler if error. */
L(pseudo_end):
ret /* Return to caller. */
PSEUDO_END (syscall)

42
sysdeps/unix/sysv/linux/am33/sysdep.S Normal file
View File

@ -0,0 +1,42 @@
/* Copyright (C) 1995, 1996, 1997, 1998, 2001, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/sysdep.S.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
/* The following code is only used in the shared library when we
compile the reentrant version. Otherwise each system call defines
each own version. */
#ifndef PIC
#undef CALL_MCOUNT
#define CALL_MCOUNT /* Don't insert the profiling call, it clobbers %eax. */
.text
ENTRY (__syscall_error)
mov d0,d1
clr d0
sub d1,d0
#define __syscall_error __syscall_error_1
#include <../../../am33/sysdep.S>
#endif /* !PIC */

317
sysdeps/unix/sysv/linux/am33/sysdep.h Normal file
View File

@ -0,0 +1,317 @@
/* Copyright 2001, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
Based on ../i386/sysdep.h.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _LINUX_AM33_SYSDEP_H
#define _LINUX_AM33_SYSDEP_H 1
/* There is some commonality. */
#include "../../../am33/sysdep.h"
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
of the kernel. But these symbols do not follow the SYS_* syntax
so we have to redefine the `SYS_ify' macro here. */
#undef SYS_ify
#define SYS_ify(syscall_name) __NR_##syscall_name
/* ELF-like local names start with `.L'. */
#undef L
#define L(name) .L##name
#ifdef __ASSEMBLER__
/* Linux uses a negative return value to indicate syscall errors,
unlike most Unices, which use the condition codes' carry flag.
Since version 2.1 the return value of a system call might be
negative even if the call succeeded. E.g., the `lseek' system call
might return a large offset. Therefore we must not anymore test
for < 0, but test for a real error by making sure the value in %eax
is a real error number. Linus said he will make sure the no syscall
returns a value in -1 .. -4095 as a valid result so we can savely
test with -4095. */
/* We don't want the label for the error handle to be global when we define
it here. */
#ifdef PIC
# define SYSCALL_ERROR_LABEL 0f
#else
# define SYSCALL_ERROR_LABEL syscall_error
#endif
#undef PSEUDO
#define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
cmp -126,d0; \
bls L(pseudo_end); \
jmp SYSCALL_ERROR_LABEL; \
L(pseudo_end): \
mov d0,a0;
#undef PSEUDO_END
#define PSEUDO_END(name) \
SYSCALL_ERROR_HANDLER \
END (name)
#undef PSEUDO_NOERROR
#define PSEUDO_NOERRNO(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args)
#undef PSEUDO_END_NOERRNO
#define PSEUDO_END_NOERRNO(name) \
END (name)
#define ret_NOERRNO ret
/* The function has to return the error code. */
#undef PSEUDO_ERRVAL
#define PSEUDO_ERRVAL(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
clr d1; \
sub d0,d1,d0
#undef PSEUDO_END_ERRVAL
#define PSEUDO_END_ERRVAL(name) \
END (name)
#define ret_ERRVAL ret
#ifndef PIC
#define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
#else
/* Store (- d0) into errno through the GOT. */
#ifdef _LIBC_REENTRANT
#define SYSCALL_ERROR_HANDLER \
0:movm [d2,a2],(sp); \
add -12,sp; \
1:mov pc,a2; \
add _GLOBAL_OFFSET_TABLE_-(1b-.),a2; \
clr d2; \
sub d0,d2; \
call __errno_location@PLT,[],0; \
mov d2,(a0); \
add 12,sp; \
movm (sp),[d2,a2]; \
mov -1,d0; \
mov d0,a0; \
jmp L(pseudo_end);
/* A quick note: it is assumed that the call to `__errno_location' does
not modify the stack! */
#else
#define SYSCALL_ERROR_HANDLER \
0:mov pc,a0; \
add _GLOBAL_OFFSET_TABLE_-(0b-.),a0; \
clr d1; \
sub d0,d1; \
mov (errno@GOT,a0),a1; \
mov d1,(a0); \
mov -1,d0; \
mov d0,a0; \
jmp L(pseudo_end);
#endif /* _LIBC_REENTRANT */
#endif /* PIC */
/* Linux takes system call arguments in registers:
syscall number d0 call-clobbered
arg 1 a0 call-clobbered
arg 2 d1 call-clobbered
arg 3 a3 call-saved
arg 4 a2 call-saved
arg 5 d3 call-saved
arg 6 d2 call-saved
The stack layout upon entering the function is:
(24,sp) Arg# 6
(20,sp) Arg# 5
(16,sp) Arg# 4
(12,sp) Arg# 3
d1 Arg# 2
d0 Arg# 1
(sp) Return address
(Of course a function with say 3 arguments does not have entries for
arguments 4, 5 and 6.) */
#undef DO_CALL
#define DO_CALL(syscall_name, args) \
PUSHARGS_##args \
DOARGS_##args \
mov SYS_ify (syscall_name),d0; \
syscall 0 \
POPARGS_##args
#define PUSHARGS_0 /* No arguments to push. */
#define _DOARGS_0(N) /* No arguments to frob. */
#define DOARGS_0 /* No arguments to frob. */
#define POPARGS_0 /* No arguments to pop. */
#define PUSHARGS_1 /* No arguments to push. */
#define _DOARGS_1(N) _DOARGS_0 (N-4) mov d0,a0;
#define DOARGS_1 _DOARGS_1 (4)
#define POPARGS_1 /* No arguments to pop. */
#define PUSHARGS_2 /* No arguments to push. */
#define _DOARGS_2(N) _DOARGS_1 (N-4) /* Argument already in d1. */
#define DOARGS_2 _DOARGS_2 (8)
#define POPARGS_2 /* No arguments to pop. */
#define PUSHARGS_3 movm [a3],(sp);
#define _DOARGS_3(N) _DOARGS_2 (N-4) mov (N,sp),a3;
#define DOARGS_3 _DOARGS_3 (16)
#define POPARGS_3 ; movm (sp),[a3]
#define PUSHARGS_4 movm [a2,a3],(sp);
#define _DOARGS_4(N) _DOARGS_3 (N-4) mov (N,sp),a2;
#define DOARGS_4 _DOARGS_4 (24)
#define POPARGS_4 ; movm (sp),[a2,a3]
#define PUSHARGS_5 movm [d3,a2,a3],(sp);
#define _DOARGS_5(N) _DOARGS_4 (N-4) mov (N,sp),d3;
#define DOARGS_5 _DOARGS_5 (32)
#define POPARGS_5 ; movm (sp),[d3,a2,a3]
#define PUSHARGS_6 movm [d2,d3,a2,a3],(sp);
#define _DOARGS_6(N) _DOARGS_5 (N-4) mov (N,sp),d2;
#define DOARGS_6 _DOARGS_6 (40)
#define POPARGS_6 ; movm (sp),[d2,d3,a2,a3]
#else /* !__ASSEMBLER__ */
/* Define a macro which expands inline into the wrapper code for a system
call. */
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ \
unsigned int resultvar = INTERNAL_SYSCALL (name, , nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, ), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \
resultvar = 0xffffffff; \
} \
(int) resultvar; })
#define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
register long __sc0 asm ("d0") = __NR_##name; \
inline_syscall##nr(name, ## args); \
__sc0; \
})
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val, err) \
((unsigned int) (val) >= (unsigned long)-125)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
#define inline_syscall0(name,dummy...) \
__asm__ __volatile__ ("syscall 0" \
: "+d" (__sc0) \
: : "memory")
#define inline_syscall1(name,arg1) \
register long __sc1 asm ("a0") = (long) (arg1); \
inline_syscall0 (name); \
__asm__ __volatile__ ("" : : "r" (__sc1))
#define inline_syscall2(name,arg1,arg2) \
register long __sc2 asm ("d1") = (long) (arg2); \
inline_syscall1 (name,(arg1)); \
__asm__ __volatile__ ("" : : "r" (__sc2))
/* We can't tell whether a3 is going to be eliminated in the enclosing
function, so we have to assume it isn't. We first load the value
of any arguments into their registers, except for a3 itself, that
may be needed to load the value of the other arguments. Then, we
save a3's value in some other register, and load the argument value
into a3. We have to force both a3 and its copy to be live in
different registers at the same time, to avoid having the copy
spilled and the value reloaded into the same register, in which
case we'd be unable to get the value of a3 back, should the stack
slot reference be (offset,a3). */
#define inline_syscall3(name,arg1,arg2,arg3) \
long __sc3v = (long) (arg3); \
register long __sc1 asm ("a0") = (long) (arg1); \
register long __sc2 asm ("d1") = (long) (arg2); \
register long __sc3 asm ("a3") = __sc3; \
register long __sc3c; \
__asm__ __volatile__ ("mov %1,%0" : "=&r" (__sc3c) : "r" (__sc3)); \
__sc3 = __sc3v; \
__asm__ __volatile__ ("" : : "r" (__sc3c), "r" (__sc3)); \
inline_syscall0 (name); \
__sc3 = __sc3c; \
__asm__ __volatile__ ("" : : "r" (__sc3), "r" (__sc2), "r" (__sc1))
#ifdef PIC
/* Since a2 is the PIC register, it requires similar handling as a3
when we're generating PIC, as a2's value may be needed to load
arguments whose values live in global variables. The difference is
that we don't need to require its value to be live in a register;
it may well be in a stack slot, as long as we save it before
clobbering a3 and restore it after restoring a3. */
#define inline_syscall4(name,arg1,arg2,arg3,arg4) \
long __sc4v = (long) (arg4); \
long __sc3v = (long) (arg3); \
register long __sc1 asm ("a0") = (long) (arg1); \
register long __sc2 asm ("d1") = (long) (arg2); \
register long __sc3 asm ("a3") = __sc3; \
register long __sc3c; \
register long __sc4 asm ("a2") = __sc4; \
long __sc4c = __sc4; \
__sc4 = __sc4v; \
__asm__ __volatile__ ("mov %1,%0" : "=&r" (__sc3c) : "r" (__sc3)); \
__sc3 = __sc3v; \
__asm__ __volatile__ ("" : : "r" (__sc3c), "r" (__sc3), "r" (__sc4)); \
inline_syscall0 (name); \
__sc3 = __sc3c; \
__sc4 = __sc4c; \
__asm__ __volatile__ ("" : : "r" (__sc4), "r" (__sc3), \
"r" (__sc2), "r" (__sc1))
#else
#define inline_syscall4(name,arg1,arg2,arg3,arg4) \
register long __sc4 asm ("a2") = (long) (arg4); \
inline_syscall3 (name,(arg1),(arg2),(arg3)); \
__asm__ __volatile__ ("" : : "r" (__sc4))
#endif
#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \
register long __sc5 asm ("d3") = (long) (arg5); \
inline_syscall4 (name,(arg1),(arg2),(arg3),(arg4)); \
__asm__ __volatile__ ("" : : "r" (__sc5))
#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6) \
register long __sc6 asm ("d2") = (long) (arg6); \
inline_syscall5 (name,(arg1),(arg2),(arg3),(arg4),(arg5)); \
__asm__ __volatile__ ("" : : "r" (__sc6))
#endif /* __ASSEMBLER__ */
#endif /* linux/am33/sysdep.h */

1
sysdeps/unix/sysv/linux/am33/xstat.c Normal file
View File

@ -0,0 +1 @@
#include <sysdeps/unix/sysv/linux/i386/xstat.c>

159
sysdeps/unix/sysv/linux/linuxthreads/sysdep-cancel.h Normal file
View File

@ -0,0 +1,159 @@
/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>
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. */
#include <sysdep.h>
#include <tls.h>
#include <pt-machine.h>
#ifndef __ASSEMBLER__
# include <linuxthreads/internals.h>
#endif
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
.text ; \
ENTRY (name) \
PUSHARGS_##args \
DOARGS_##args \
SINGLE_THREAD_P; \
bne L(pseudo_cancel); \
mov SYS_ify (syscall_name),d0; \
syscall 0 \
POPARGS_##args ; \
cmp -126,d0; \
bls L(pseudo_end); \
jmp SYSCALL_ERROR_LABEL; \
L(pseudo_cancel): \
add -(16+STACK_SPACE (args)),sp; \
SAVE_ARGS_##args \
CENABLE \
mov d0,r0; \
LOAD_ARGS_##args \
mov SYS_ify (syscall_name),d0; \
syscall 0; \
mov d0,(12,sp); \
mov r0,d0; \
CDISABLE \
mov (12,sp),d0; \
add +16+STACK_SPACE (args),sp \
POPARGS_##args ; \
cmp -126,d0; \
bls L(pseudo_end); \
jmp SYSCALL_ERROR_LABEL; \
L(pseudo_end): \
mov d0,a0
/* Reserve up to 2 stack slots for a0 and d1, but fewer than that if
we don't have that many arguments. */
# define STACK_SPACE(n) (((((n) < 3) * (2 - (n))) + 2) * 4)
# define SAVE_ARGS_0
# define SAVE_ARGS_1 mov a0,(20,sp) ;
# define SAVE_ARGS_2 SAVE_ARGS_1 mov d1,(24,sp) ;
# define SAVE_ARGS_3 SAVE_ARGS_2
# define SAVE_ARGS_4 SAVE_ARGS_3
# define SAVE_ARGS_5 SAVE_ARGS_4
# define SAVE_ARGS_6 SAVE_ARGS_5
# define LOAD_ARGS_0
# define LOAD_ARGS_1 mov (20,sp),a0 ;
# define LOAD_ARGS_2 LOAD_ARGS_1 mov (24,sp),d1 ;
# define LOAD_ARGS_3 LOAD_ARGS_2
# define LOAD_ARGS_4 LOAD_ARGS_3
# define LOAD_ARGS_5 LOAD_ARGS_4
# define LOAD_ARGS_6 LOAD_ARGS_5
# ifdef IS_IN_libpthread
# define CENABLE call __pthread_enable_asynccancel,[],0;
# define CDISABLE call __pthread_disable_asynccancel,[],0;
# elif defined IS_IN_librt
# ifdef PIC
# define CENABLE movm [a2],(sp); \
1: mov pc,a2; \
add _GLOBAL_OFFSET_TABLE_-(1b-.),a2; \
call +__librt_enable_asynccancel@PLT,[],0; \
movm (sp),[a2];
# define CENABLE movm [a2],(sp); \
1: mov pc,a2; \
add _GLOBAL_OFFSET_TABLE_-(1b-.),a2; \
call +__librt_disable_asynccancel@PLT,[],0; \
movm (sp),[a2];
# else
# define CENABLE call +__librt_enable_asynccancel,[],0;
# define CDISABLE call +__librt_disable_asynccancel,[],0;
# endif
# else
# define CENABLE call +__libc_enable_asynccancel,[],0;
# define CDISABLE call +__libc_disable_asynccancel,[],0;
# endif
#if !defined NOT_IN_libc
# define __local_multiple_threads __libc_multiple_threads
#elif defined IS_IN_libpthread
# define __local_multiple_threads __pthread_multiple_threads
#else
# define __local_multiple_threads __librt_multiple_threads
#endif
# ifndef __ASSEMBLER__
# if defined FLOATING_STACKS && USE___THREAD && defined PIC
# define SINGLE_THREAD_P \
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
p_header.data.multiple_threads) == 0, 1)
# else
extern int __local_multiple_threads
# if !defined NOT_IN_libc || defined IS_IN_libpthread
attribute_hidden;
# else
;
# endif
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
# endif
# else
# if !defined PIC
# define SINGLE_THREAD_P \
mov (+__local_multiple_threads),d0; \
cmp 0,d0
# elif !defined NOT_IN_libc || defined IS_IN_libpthread
# define SINGLE_THREAD_P \
movm [a2],(sp); \
1: mov pc,a2; \
add _GLOBAL_OFFSET_TABLE_-(1b-.),a2; \
mov (+__local_multiple_threads@GOTOFF,a2),d0; \
movm (sp),[a2]; \
cmp 0,d0
# else
# define SINGLE_THREAD_P \
movm [a2],(sp); \
1: mov pc,a2; \
add _GLOBAL_OFFSET_TABLE_-(1b-.),a2; \
mov (+__local_multiple_threads@GOT,a2),a2; \
mov (a2),d0; \
movm (sp),[a2]; \
cmp 0,d0
# endif
# endif
#elif !defined __ASSEMBLER__
/* This code should never be used but we define it anyhow. */
# define SINGLE_THREAD_P (1)
#endif