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* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_runtime_setup):

Browse Source 
Handle prelinked libraries and binaries with new style PLT.

2005-06-07  Jakub Jelinek  <jakub@redhat.com>

	* elf/elf.h (R_PPC_REL16, R_PPC_REL16_LO, R_PPC_REL16_HI,
	R_PPC_REL16_HA): Define.

2005-06-14  Alan Modra  <amodra@bigpond.net.au>

	* config.h.in (HAVE_ASM_PPC_REL16): Add.
	* elf/elf.h (DT_PPC_GOT, DT_PPC_NUM): Define.
	* elf/tls-macros.h (PowerPC32): Include config.h.  Add variants of
	TLS_IE, TLS_LD and TLS_GD for new PLT/GOT layout.
	* sysdeps/powerpc/powerpc32/configure.in: New file,
	* sysdeps/powerpc/powerpc32/dl-dtprocnum.h: New file.
	* sysdeps/powerpc/powerpc32/dl-machine.h (DT_PPC): Define.
	(ppc_got): New inline function.
	(elf_machine_dynamic): Use ppc_got.  Add attribute const.
	(elf_machine_load_address): Add attribute const.  Don't use int vars.
	Use bcl rather than bl to save trashing branch target stack.  Use
	elf_machine_dynamic rather than duplicating code here.
	(elf_machine_runtime_setup): New inline function replacing define.
	Handle new PLT.
	(elf_machine_fixup_plt): Handle new PLT.
	(elf_machine_rela): Likewise.
	* sysdeps/powerpc/powerpc32/sysdep.h: Include config.h.
	(CALL_MCOUNT): Don't set up counter vars.
	* sysdeps/powerpc/powerpc32/ppc-mcount.S: Correct comment.
	* sysdeps/powerpc/powerpc32/elf/start.S (start_addressesp): Don't
	define when HAVE_ASM_PPC_REL16.
	(_start): Add HAVE_ASM_PPC_REL16 code.
	* sysdeps/powerpc/powerpc32/dl-start.S (_dl_start_user): Don't bl
	into the GOT when HAVE_ASM_PPC_REL16.
	* sysdeps/powerpc/powerpc32/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S (__longjmp): Ditto.
	* sysdeps/powerpc/powerpc32/fpu/s_ceil.S (__ceil): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_ceilf.S (__ceilf): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_floor.S (__floor): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_floorf.S (__floorf): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_lround.S (__lround): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_rint.S (__rint): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_rintf.S (__rintf): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_round.S (__round): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_roundf.S (__roundf): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_trunc.S (__trunc): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_truncf.S (__truncf): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S (__sigsetjmp):
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S (__brk): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
	(__getcontext): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
	(__setcontext): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
	(__swapcontext): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S (stackblock):
	Comment.
	(__socket): Bomb if NARGS >= 7.  Invoke CGOTSETUP and CGOTRESTORE.

2005-06-17  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/posix/sigignore.c: Include <string.h> to tell the compiler
	to use __GI_memset.
	* sysdeps/posix/signal.c: Likewise.
	* sysdeps/posix/sigset.c: Likewise.
	* sysdeps/posix/sysv_signal.c: Likewise.
	* sysdeps/unix/sysv/linux/sleep.c: Likewise.
	* sysdeps/unix/sysv/linux/sysctl.c: Likewise.
	* sysdeps/unix/sysv/linux/system.c: Likewise.
This commit is contained in:
Ulrich Drepper 2005-06-17 23:11:35 +00:00
parent 7b01092b16
commit 99c7f8700d
43 changed files with 551 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

73
ChangeLog
View File

@ -1,3 +1,76 @@
2005-06-10 Jakub Jelinek <jakub@redhat.com>
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_runtime_setup):
Handle prelinked libraries and binaries with new style PLT.
2005-06-07 Jakub Jelinek <jakub@redhat.com>
* elf/elf.h (R_PPC_REL16, R_PPC_REL16_LO, R_PPC_REL16_HI,
R_PPC_REL16_HA): Define.
2005-06-14 Alan Modra <amodra@bigpond.net.au>
* config.h.in (HAVE_ASM_PPC_REL16): Add.
* elf/elf.h (DT_PPC_GOT, DT_PPC_NUM): Define.
* elf/tls-macros.h (PowerPC32): Include config.h. Add variants of
TLS_IE, TLS_LD and TLS_GD for new PLT/GOT layout.
* sysdeps/powerpc/powerpc32/configure.in: New file,
* sysdeps/powerpc/powerpc32/dl-dtprocnum.h: New file.
* sysdeps/powerpc/powerpc32/dl-machine.h (DT_PPC): Define.
(ppc_got): New inline function.
(elf_machine_dynamic): Use ppc_got. Add attribute const.
(elf_machine_load_address): Add attribute const. Don't use int vars.
Use bcl rather than bl to save trashing branch target stack. Use
elf_machine_dynamic rather than duplicating code here.
(elf_machine_runtime_setup): New inline function replacing define.
Handle new PLT.
(elf_machine_fixup_plt): Handle new PLT.
(elf_machine_rela): Likewise.
* sysdeps/powerpc/powerpc32/sysdep.h: Include config.h.
(CALL_MCOUNT): Don't set up counter vars.
* sysdeps/powerpc/powerpc32/ppc-mcount.S: Correct comment.
* sysdeps/powerpc/powerpc32/elf/start.S (start_addressesp): Don't
define when HAVE_ASM_PPC_REL16.
(_start): Add HAVE_ASM_PPC_REL16 code.
* sysdeps/powerpc/powerpc32/dl-start.S (_dl_start_user): Don't bl
into the GOT when HAVE_ASM_PPC_REL16.
* sysdeps/powerpc/powerpc32/memset.S (memset): Likewise.
* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S (__longjmp): Ditto.
* sysdeps/powerpc/powerpc32/fpu/s_ceil.S (__ceil): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_ceilf.S (__ceilf): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_floor.S (__floor): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_floorf.S (__floorf): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S (__lround): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_rint.S (__rint): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_rintf.S (__rintf): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_round.S (__round): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_roundf.S (__roundf): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_trunc.S (__trunc): Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_truncf.S (__truncf): Likewise.
* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S (__sigsetjmp):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S (__brk): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
(__getcontext): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
(__setcontext): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
(__swapcontext): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S (stackblock):
Comment.
(__socket): Bomb if NARGS >= 7. Invoke CGOTSETUP and CGOTRESTORE.
2005-06-17 Ulrich Drepper <drepper@redhat.com>
* sysdeps/posix/sigignore.c: Include <string.h> to tell the compiler
to use __GI_memset.
* sysdeps/posix/signal.c: Likewise.
* sysdeps/posix/sigset.c: Likewise.
* sysdeps/posix/sysv_signal.c: Likewise.
* sysdeps/unix/sysv/linux/sleep.c: Likewise.
* sysdeps/unix/sysv/linux/sysctl.c: Likewise.
* sysdeps/unix/sysv/linux/system.c: Likewise.
2005-06-15 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (hesiod_init): Don't check for ctx->classes[0] == 0

3
config.h.in
View File

@ -220,6 +220,9 @@
/* Define if inlined system calls are available. */
#undef HAVE_INLINED_SYSCALLS
/* Define if your assembler and linker support R_PPC_REL16* relocs. */
#undef HAVE_ASM_PPC_REL16
/*
*/

9
elf/elf.h
View File

@ -1979,10 +1979,19 @@ typedef Elf32_Addr Elf32_Conflict;
#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
/* GNU relocs used in PIC code sequences. */
#define R_PPC_REL16 249 /* word32 (sym-.) */
#define R_PPC_REL16_LO 250 /* half16 (sym-.)@l */
#define R_PPC_REL16_HI 251 /* half16 (sym-.)@h */
#define R_PPC_REL16_HA 252 /* half16 (sym-.)@ha */
/* This is a phony reloc to handle any old fashioned TOC16 references
that may still be in object files. */
#define R_PPC_TOC16 255
/* PowerPC specific values for the Dyn d_tag field. */
#define DT_PPC_GOT (DT_LOPROC + 0)
#define DT_PPC_NUM 1
/* PowerPC64 relocations defined by the ABIs */
#define R_PPC64_NONE R_PPC_NONE

51
elf/tls-macros.h
View File

@ -703,6 +703,8 @@ register void *__gp __asm__("$29");
#elif defined __powerpc__ && !defined __powerpc64__
#include "config.h"
# define __TLS_CALL_CLOBBERS \
"0", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", \
"lr", "ctr", "cr0", "cr1", "cr5", "cr6", "cr7"
@ -715,7 +717,20 @@ register void *__gp __asm__("$29");
__result; })
/* PowerPC32 Initial Exec TLS access. */
# define TLS_IE(x) \
# ifdef HAVE_ASM_PPC_REL16
# define TLS_IE(x) \
({ int *__result; \
asm ("bcl 20,31,1f\n1:\t" \
"mflr %0\n\t" \
"addis %0,%0,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \
"addi %0,%0,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \
"lwz %0," #x "@got@tprel(%0)\n\t" \
"add %0,%0," #x "@tls" \
: "=b" (__result) : \
: "lr"); \
__result; })
# else
# define TLS_IE(x) \
({ int *__result; \
asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \
"mflr %0\n\t" \
@ -724,9 +739,24 @@ register void *__gp __asm__("$29");
: "=b" (__result) : \
: "lr"); \
__result; })
# endif
/* PowerPC32 Local Dynamic TLS access. */
# define TLS_LD(x) \
# ifdef HAVE_ASM_PPC_REL16
# define TLS_LD(x) \
({ int *__result; \
asm ("bcl 20,31,1f\n1:\t" \
"mflr 3\n\t" \
"addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \
"addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \
"addi 3,3," #x "@got@tlsld\n\t" \
"bl __tls_get_addr@plt\n\t" \
"addi %0,3," #x "@dtprel" \
: "=r" (__result) : \
: __TLS_CALL_CLOBBERS); \
__result; })
# else
# define TLS_LD(x) \
({ int *__result; \
asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \
"mflr 3\n\t" \
@ -736,9 +766,23 @@ register void *__gp __asm__("$29");
: "=r" (__result) : \
: __TLS_CALL_CLOBBERS); \
__result; })
# endif
/* PowerPC32 General Dynamic TLS access. */
# define TLS_GD(x) \
# ifdef HAVE_ASM_PPC_REL16
# define TLS_GD(x) \
({ register int *__result __asm__ ("r3"); \
asm ("bcl 20,31,1f\n1:\t" \
"mflr 3\n\t" \
"addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t" \
"addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t" \
"addi 3,3," #x "@got@tlsgd\n\t" \
"bl __tls_get_addr@plt" \
: : \
: __TLS_CALL_CLOBBERS); \
__result; })
# else
# define TLS_GD(x) \
({ register int *__result __asm__ ("r3"); \
asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t" \
"mflr 3\n\t" \
@ -747,6 +791,7 @@ register void *__gp __asm__("$29");
: : \
: __TLS_CALL_CLOBBERS); \
__result; })
# endif
#elif defined __powerpc__ && defined __powerpc64__

9
linuxthreads/ChangeLog
View File

@ -1,3 +1,12 @@
2005-06-14 Alan Modra <amodra@bigpond.net.au>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (PSEUDO):
Invoke CGOTSETUP and CGOTRESTORE.
(CGOTSETUP, CGOTRESTORE): Define.
(SINGLE_THREAD_P): Add variant for new PLT/GOT layout.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork): Avoid
bl into the GOT when HAVE_ASM_PPC_REL16.
2005-05-23 Roland McGrath <roland@redhat.com>
* sysdeps/arm, sysdeps/unix/sysv/linux/arm: Subdirectories moved to

30
linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h
View File

@ -37,6 +37,7 @@
stwu 1,-48(1); \
mflr 9; \
stw 9,52(1); \
CGOTSETUP; \
DOCARGS_##args; /* save syscall args around CENABLE. */ \
CENABLE; \
stw 3,16(1); /* store CENABLE return value (MASK). */ \
@ -50,6 +51,7 @@
lwz 4,52(1); \
lwz 0,12(1); /* restore CR/R3. */ \
lwz 3,8(1); \
CGOTRESTORE; \
mtlr 4; \
mtcr 0; \
addi 1,1,48;
@ -75,6 +77,9 @@
# define DOCARGS_6 stw 8,40(1); DOCARGS_5
# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5
# define CGOTSETUP
# define CGOTRESTORE
# ifdef IS_IN_libpthread
# define CENABLE bl __pthread_enable_asynccancel@local
# define CDISABLE bl __pthread_disable_asynccancel@local
@ -84,6 +89,18 @@
# else
# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
# if defined HAVE_AS_REL16 && defined PIC
# undef CGOTSETUP
# define CGOTSETUP \
bcl 20,31,1f; \
1: stw 30,44(1); \
mflr 30; \
addis 30,30,_GLOBAL_OFFSET_TABLE-1b@ha; \
addi 30,30,_GLOBAL_OFFSET_TABLE-1b@l
# undef CGOTRESTORE
# define CGOTRESTORE \
lwz 30,44(1)
# endif
# endif
# ifdef HAVE_TLS_SUPPORT
@ -111,7 +128,17 @@ extern int __local_multiple_threads attribute_hidden;
lwz 10,__local_multiple_threads@l(10); \
cmpwi 10,0
# else
# define SINGLE_THREAD_P \
# ifdef HAVE_ASM_PPC_REL16
# define SINGLE_THREAD_P \
mflr 9; \
bcl 20,31,1f; \
1:mflr 10; \
addis 10,10,__local_multiple_threads-1b@ha; \
lwz 10,__local_multiple_threads-1b@l(10); \
mtlr 9; \
cmpwi 10,0
# else
# define SINGLE_THREAD_P \
mflr 9; \
bl _GLOBAL_OFFSET_TABLE_@local-4; \
mflr 10; \
@ -119,6 +146,7 @@ extern int __local_multiple_threads attribute_hidden;
lwz 10,__local_multiple_threads@got(10); \
lwz 10,0(10); \
cmpwi 10,0
# endif
# endif
# endif
# endif

8
linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S
View File

@ -31,11 +31,19 @@ ENTRY (__vfork)
#ifdef __NR_vfork
# ifdef SHARED
mflr 9
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr 10
addis 10,10,__libc_pthread_functions-1b@ha
lwz 10,__libc_pthread_functions-1b@l(10)
mtlr 9
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr 10
mtlr 9
lwz 10,__libc_pthread_functions@got(10)
lwz 10,0(10)
# endif
# else
.weak pthread_create
lis 10,pthread_create@ha

6
nptl/ChangeLog
View File

@ -1,3 +1,9 @@
2005-06-14 Alan Modra <amodra@bigpond.net.au>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (PSEUDO):
Invoke CGOTSETUP and CGOTRESTORE.
(CGOTSETUP, CGOTRESTORE): Define.
2005-05-29 Richard Henderson <rth@redhat.com>
* tst-cancel4.c (WRITE_BUFFER_SIZE): New.

17
nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h
View File

@ -45,6 +45,7 @@
mflr 9; \
stw 9,52(1); \
cfi_offset (lr, 4); \
CGOTSETUP; \
DOCARGS_##args; /* save syscall args around CENABLE. */ \
CENABLE; \
stw 3,16(1); /* store CENABLE return value (MASK). */ \
@ -58,6 +59,7 @@
lwz 4,52(1); \
lwz 0,12(1); /* restore CR/R3. */ \
lwz 3,8(1); \
CGOTRESTORE; \
mtlr 4; \
mtcr 0; \
addi 1,1,48; \
@ -84,6 +86,9 @@
# define DOCARGS_6 stw 8,40(1); DOCARGS_5
# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5
# define CGOTSETUP
# define CGOTRESTORE
# ifdef IS_IN_libpthread
# define CENABLE bl __pthread_enable_asynccancel@local
# define CDISABLE bl __pthread_disable_asynccancel@local
@ -93,6 +98,18 @@
# elif defined IS_IN_librt
# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel)
# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel)
# if defined HAVE_AS_REL16 && defined PIC
# undef CGOTSETUP
# define CGOTSETUP \
bcl 20,31,1f; \
1: stw 30,44(1); \
mflr 30; \
addis 30,30,_GLOBAL_OFFSET_TABLE-1b@ha; \
addi 30,30,_GLOBAL_OFFSET_TABLE-1b@l
# undef CGOTRESTORE
# define CGOTRESTORE \
lwz 30,44(1)
# endif
# else
# error Unsupported library
# endif

4
sysdeps/posix/sigignore.c
View File

@ -1,5 +1,5 @@
/* Set the disposition of SIG to SIG_IGN.
Copyright (C) 1998 Free Software Foundation, Inc.
Copyright (C) 1998, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@ -22,6 +22,8 @@
#define __need_NULL
#include <stddef.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
int
sigignore (sig)

4
sysdeps/posix/signal.c
View File

@ -1,5 +1,6 @@
/* BSD-like signal function.
Copyright (C) 1991,1992,1996,1997,2000,2002 Free Software Foundation, Inc.
Copyright (C) 1991,1992,1996,1997,2000,2002,2005
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
@ -19,6 +20,7 @@
#include <errno.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
sigset_t _sigintr attribute_hidden; /* Set by siginterrupt. */

3
sysdeps/posix/sigset.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
/* Copyright (C) 1998, 2000, 2005 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
@ -20,6 +20,7 @@
#define __need_NULL
#include <stddef.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
/* Set the disposition for SIG. */

4
sysdeps/posix/sysv_signal.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1991, 1992, 1996, 1997, 2005 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
@ -18,6 +18,8 @@
#include <errno.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
/* Tolerate non-threads versions of Posix */
#ifndef SA_ONESHOT

33
sysdeps/powerpc/powerpc32/configure vendored Normal file
View File

@ -0,0 +1,33 @@
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/powerpc/powerpc32.
# See whether gas has R_PPC_REL16 relocs.
echo "$as_me:$LINENO: checking for R_PPC_REL16 gas support" >&5
echo $ECHO_N "checking for R_PPC_REL16 gas support... $ECHO_C" >&6
if test "${libc_cv_ppc_rel16+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat > conftest.s <<\EOF
.text
addis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
libc_cv_ppc_rel16=yes
else
libc_cv_ppc_rel16=no
fi
rm -f conftest*
fi
echo "$as_me:$LINENO: result: $libc_cv_ppc_rel16" >&5
echo "${ECHO_T}$libc_cv_ppc_rel16" >&6
if test $libc_cv_ppc_rel16 = yes; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_ASM_PPC_REL16 1
_ACEOF
fi

18
sysdeps/powerpc/powerpc32/configure.in Normal file
View File

@ -0,0 +1,18 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/powerpc/powerpc32.
# See whether gas has R_PPC_REL16 relocs.
AC_CACHE_CHECK(for R_PPC_REL16 gas support, libc_cv_ppc_rel16, [dnl
cat > conftest.s <<\EOF
.text
addis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha
EOF
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_ppc_rel16=yes
else
libc_cv_ppc_rel16=no
fi
rm -f conftest*])
if test $libc_cv_ppc_rel16 = yes; then
AC_DEFINE(HAVE_ASM_PPC_REL16)
fi

3
sysdeps/powerpc/powerpc32/dl-dtprocnum.h Normal file
View File

@ -0,0 +1,3 @@
/* Number of extra dynamic section entries for this architecture. By
default there are none. */
#define DT_THISPROCNUM DT_PPC_NUM

124
sysdeps/powerpc/powerpc32/dl-machine.h
View File

@ -25,6 +25,10 @@
#include <assert.h>
#include <dl-tls.h>
/* Translate a processor specific dynamic tag to the index
in l_info array. */
#define DT_PPC(x) (DT_PPC_##x - DT_LOPROC + DT_NUM)
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int
elf_machine_matches_host (const Elf32_Ehdr *ehdr)
@ -32,24 +36,38 @@ elf_machine_matches_host (const Elf32_Ehdr *ehdr)
return ehdr->e_machine == EM_PPC;
}
/* Return the value of the GOT pointer. */
static inline Elf32_Addr * __attribute__ ((const))
ppc_got (void)
{
Elf32_Addr *got;
#ifdef HAVE_ASM_PPC_REL16
asm ("bcl 20,31,1f\n"
"1: mflr %0\n"
" addis %0,%0,_GLOBAL_OFFSET_TABLE_-1b@ha\n"
" addi %0,%0,_GLOBAL_OFFSET_TABLE_-1b@l\n"
: "=b" (got) : : "lr");
#else
asm (" bl _GLOBAL_OFFSET_TABLE_-4@local"
: "=l" (got));
#endif
return got;
}
/* Return the link-time address of _DYNAMIC, stored as
the first value in the GOT. */
static inline Elf32_Addr
static inline Elf32_Addr __attribute__ ((const))
elf_machine_dynamic (void)
{
Elf32_Addr *got;
asm (" bl _GLOBAL_OFFSET_TABLE_-4@local"
: "=l"(got));
return *got;
return *ppc_got ();
}
/* Return the run-time load address of the shared object. */
static inline Elf32_Addr
static inline Elf32_Addr __attribute__ ((const))
elf_machine_load_address (void)
{
unsigned int *got;
unsigned int *branchaddr;
Elf32_Addr *branchaddr;
Elf32_Addr runtime_dynamic;
/* This is much harder than you'd expect. Possibly I'm missing something.
The 'obvious' way:
@ -80,19 +98,17 @@ elf_machine_load_address (void)
the address ourselves. That gives us the following code: */
/* Get address of the 'b _DYNAMIC@local'... */
asm ("bl 0f ;"
asm ("bcl 20,31,0f;"
"b _DYNAMIC@local;"
"0:"
: "=l"(branchaddr));
/* ... and the address of the GOT. */
asm (" bl _GLOBAL_OFFSET_TABLE_-4@local"
: "=l"(got));
: "=l" (branchaddr));
/* So now work out the difference between where the branch actually points,
and the offset of that location in memory from the start of the file. */
return ((Elf32_Addr)branchaddr - *got
+ ((int)(*branchaddr << 6 & 0xffffff00) >> 6));
runtime_dynamic = ((Elf32_Addr) branchaddr
+ ((Elf32_Sword) (*branchaddr << 6 & 0xffffff00) >> 6));
return runtime_dynamic - elf_machine_dynamic ();
}
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) /* nothing */
@ -144,13 +160,69 @@ __elf_preferred_address(struct link_map *loader, size_t maplength,
/* The PowerPC never uses REL relocations. */
#define ELF_MACHINE_NO_REL 1
/* Set up the loaded object described by L so its unrelocated PLT
/* Set up the loaded object described by MAP so its unrelocated PLT
entries will jump to the on-demand fixup code in dl-runtime.c.
Also install a small trampoline to be used by entries that have
been relocated to an address too far away for a single branch. */
extern int __elf_machine_runtime_setup (struct link_map *map,
int lazy, int profile);
#define elf_machine_runtime_setup __elf_machine_runtime_setup
static inline int
elf_machine_runtime_setup (struct link_map *map,
int lazy, int profile)
{
if (map->l_info[DT_JMPREL] == 0)
return lazy;
if (map->l_info[DT_PPC(GOT)] == 0)
/* Handle old style PLT. */
return __elf_machine_runtime_setup (map, lazy, profile);
/* New style non-exec PLT consisting of an array of addresses. */
map->l_info[DT_PPC(GOT)]->d_un.d_ptr += map->l_addr;
if (lazy)
{
Elf32_Addr *plt, *got, glink;
Elf32_Word num_plt_entries;
void (*dlrr) (void);
extern void _dl_runtime_resolve (void);
extern void _dl_prof_resolve (void);
if (__builtin_expect (!profile, 1))
dlrr = _dl_runtime_resolve;
else
{
if (GLRO(dl_profile) != NULL
&&_dl_name_match_p (GLRO(dl_profile), map))
GL(dl_profile_map) = map;
dlrr = _dl_prof_resolve;
}
got = (Elf32_Addr *) map->l_info[DT_PPC(GOT)]->d_un.d_ptr;
glink = got[1];
got[1] = (Elf32_Addr) dlrr;
got[2] = (Elf32_Addr) map;
/* Relocate everything in .plt by the load address offset. */
plt = (Elf32_Addr *) D_PTR (map, l_info[DT_PLTGOT]);
num_plt_entries = (map->l_info[DT_PLTRELSZ]->d_un.d_val
/ sizeof (Elf32_Rela));
/* If a library is prelinked but we have to relocate anyway,
we have to be able to undo the prelinking of .plt section.
The prelinker saved us at got[1] address of .glink
section's start. */
if (glink)
{
glink += map->l_addr;
while (num_plt_entries-- != 0)
*plt++ = glink, glink += 4;
}
else
while (num_plt_entries-- != 0)
*plt++ += map->l_addr;
}
return lazy;
}
/* Change the PLT entry whose reloc is 'reloc' to call the actual routine. */
extern Elf32_Addr __elf_machine_fixup_plt (struct link_map *map,
@ -163,7 +235,12 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t t,
const Elf32_Rela *reloc,
Elf32_Addr *reloc_addr, Elf64_Addr finaladdr)
{
return __elf_machine_fixup_plt (map, reloc, reloc_addr, finaladdr);
if (map->l_info[DT_PPC(GOT)] == 0)
/* Handle old style PLT. */
return __elf_machine_fixup_plt (map, reloc, reloc_addr, finaladdr);
*reloc_addr = finaladdr;
return finaladdr;
}
/* Return the final value of a plt relocation. */
@ -286,11 +363,16 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
break;
#endif /* USE_TLS etc. */
#ifdef RESOLVE_CONFLICT_FIND_MAP
case R_PPC_JMP_SLOT:
#ifdef RESOLVE_CONFLICT_FIND_MAP
RESOLVE_CONFLICT_FIND_MAP (map, reloc_addr);
/* FALLTHROUGH */
#endif
if (map->l_info[DT_PPC(GOT)] != 0)
{
*reloc_addr = value;
break;
}
/* FALLTHROUGH */
default:
__process_machine_rela (map, reloc, sym_map, sym, refsym,

7
sysdeps/powerpc/powerpc32/dl-start.S
View File

@ -47,8 +47,15 @@ ENTRY(_dl_start_user)
passed by value!). */
/* Put our GOT pointer in r31, */
#ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r31
addis r31,r31,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r31,r31,_GLOBAL_OFFSET_TABLE_-1b@l
#else
bl _GLOBAL_OFFSET_TABLE_-4@local
mflr r31
#endif
/* the address of _start in r30, */
mr r30,r3
/* &_dl_argc in 29, &_dl_argv in 27, and _dl_loaded in 28. */

12
sysdeps/powerpc/powerpc32/elf/start.S
View File

@ -52,7 +52,7 @@ L(start_addresses):
ASM_SIZE_DIRECTIVE(L(start_addresses))
.section ".text"
#ifdef PIC
#if defined PIC && !defined HAVE_ASM_PPC_REL16
L(start_addressesp):
.long L(start_addresses)-L(branch)
#endif
@ -73,11 +73,19 @@ L(branch):
mtlr r0
stw r0,0(r1)
/* Set r13 to point at the 'small data area', and put the address of
start_addresses in r8... */
start_addresses in r8. Also load the GOT pointer so that new PLT
calls work, like the one to __libc_start_main. */
#ifdef PIC
# ifdef HAVE_ASM_PPC_REL16
addis r30,r13,_GLOBAL_OFFSET_TABLE_-L(branch)@ha
addis r8,r13,L(start_addresses)-L(branch)@ha
addi r30,r30,_GLOBAL_OFFSET_TABLE_-L(branch)@l
lwzu r13,L(start_addresses)-L(branch)@l(r8)
# else
lwz r8,L(start_addressesp)-L(branch)(r13)
add r8,r13,r8
lwz r13,0(r8)
# endif
#else
lis r8,L(start_addresses)@ha
lwzu r13,L(start_addresses)@l(r8)

7
sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S
View File

@ -34,8 +34,15 @@ ENTRY (BP_SYM (__longjmp))
#ifndef __NO_VMX__
# ifdef PIC
mflr r6
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r5,r5,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
# endif
# ifdef SHARED
lwz r5,_rtld_global_ro@got(r5)
mtlr r6

8
sysdeps/powerpc/powerpc32/fpu/s_ceil.S
View File

@ -29,11 +29,19 @@ ENTRY (__ceil)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

10
sysdeps/powerpc/powerpc32/fpu/s_ceilf.S
View File

@ -20,7 +20,7 @@
#include <sysdep.h>
.section .rodata.cst4,"aM",@progbits,4
.align 2
.align 2
.LC0: /* 2**23 */
.long 0x4b000000
@ -29,11 +29,19 @@ ENTRY (__ceilf)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

8
sysdeps/powerpc/powerpc32/fpu/s_floor.S
View File

@ -29,11 +29,19 @@ ENTRY (__floor)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

10
sysdeps/powerpc/powerpc32/fpu/s_floorf.S
View File

@ -20,7 +20,7 @@
#include <sysdep.h>
.section .rodata.cst4,"aM",@progbits,4
.align 2
.align 2
.LC0: /* 2**23 */
.long 0x4b000000
@ -29,11 +29,19 @@ ENTRY (__floorf)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

7
sysdeps/powerpc/powerpc32/fpu/s_lround.S
View File

@ -41,9 +41,16 @@
ENTRY (__lround)
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
addi r9,r9,.LC0-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
# endif
mtlr r11
lfs fp12,0(r9)
#else

8
sysdeps/powerpc/powerpc32/fpu/s_rint.S
View File

@ -31,11 +31,19 @@
ENTRY (__rint)
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

10
sysdeps/powerpc/powerpc32/fpu/s_rintf.S
View File

@ -20,7 +20,7 @@
#include <sysdep.h>
.section .rodata.cst4,"aM",@progbits,4
.align 2
.align 2
.LC0: /* 2**23 */
.long 0x4b000000
@ -28,11 +28,19 @@
ENTRY (__rintf)
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

7
sysdeps/powerpc/powerpc32/fpu/s_round.S
View File

@ -41,9 +41,16 @@ ENTRY (__round)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
addi r9,r9,.LC0-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
# endif
mtlr r11
lfs fp13,0(r9)
#else

7
sysdeps/powerpc/powerpc32/fpu/s_roundf.S
View File

@ -41,9 +41,16 @@ ENTRY (__roundf )
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
addi r9,r9,.LC0-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
# endif
mtlr r11
lfs fp13,0(r9)
#else

8
sysdeps/powerpc/powerpc32/fpu/s_trunc.S
View File

@ -36,11 +36,19 @@ ENTRY (__trunc)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

10
sysdeps/powerpc/powerpc32/fpu/s_truncf.S
View File

@ -20,7 +20,7 @@
#include <sysdep.h>
.section .rodata.cst4,"aM",@progbits,4
.align 2
.align 2
.LC0: /* 2**23 */
.long 0x4b000000
@ -36,11 +36,19 @@ ENTRY (__truncf)
mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r9
addis r9,r9,.LC0-1b@ha
mtlr r11
lfs fp13,.LC0-1b@l(r9)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r10
lwz r9,.LC0@got(10)
mtlr r11
lfs fp13,0(r9)
# endif
#else
lis r9,.LC0@ha
lfs fp13,.LC0@l(r9)

7
sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
View File

@ -76,8 +76,15 @@ ENTRY (BP_SYM (__sigsetjmp))
#ifndef __NO_VMX__
# ifdef PIC
mflr r6
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r5,r5,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
# endif
# ifdef SHARED
lwz r5,_rtld_global_ro@got(r5)
mtlr r6

7
sysdeps/powerpc/powerpc32/memset.S
View File

@ -264,10 +264,17 @@ L(checklinesize):
beq L(medium)
/* Establishes GOT addressability so we can load __cache_line_size
from static. This value was set from the aux vector during startup. */
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr rGOT
addis rGOT,rGOT,__cache_line_size-1b@ha
lwz rCLS,__cache_line_size-1b@l(rGOT)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr rGOT
lwz rGOT,__cache_line_size@got(rGOT)
lwz rCLS,0(rGOT)
# endif
mtlr rTMP
#else
/* Load __cache_line_size from static. This value was set from the

20
sysdeps/powerpc/powerpc32/ppc-mcount.S
View File

@ -1,5 +1,5 @@
/* PowerPC-specific implementation of profiling support.
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
Copyright (C) 1997, 1999, 2005 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
@ -24,25 +24,19 @@
#include <sysdep.h>
/* We do profiling as described in the SYSV ELF ABI, _mcount is called
with the address of a data word in r0 (that is different for every
routine, initialised to 0, and otherwise unused). The caller has put
the address the caller will return to in the usual place on the stack,
4(r1). _mcount is responsible for ensuring that when it returns no
argument-passing registers are disturbed, and that the LR is set back
to (what the caller sees as) 4(r1).
/* We do profiling as described in the SYSV ELF ABI, except that glibc
_mcount manages its own counters. The caller has put the address the
caller will return to in the usual place on the stack, 4(r1). _mcount
is responsible for ensuring that when it returns no argument-passing
registers are disturbed, and that the LR is set back to (what the
caller sees as) 4(r1).
This is intended so that the following code can be inserted at the
front of any routine without changing the routine:
.data
.align 2
0: .long 0
.previous
mflr r0
lis r11,0b@ha
stw r0,4(r1)
addi r0,r11,0b@l
bl _mcount
*/

23
sysdeps/powerpc/powerpc32/sysdep.h
View File

@ -29,31 +29,10 @@
/* The mcount code relies on a the return address being on the stack
to locate our caller and so it can restore it; so store one just
for its benefit. */
# ifdef PIC
# define CALL_MCOUNT \
.pushsection; \
.section ".data"; \
.align ALIGNARG(2); \
0:.long 0; \
.previous; \
# define CALL_MCOUNT \
mflr r0; \
stw r0,4(r1); \
bl _GLOBAL_OFFSET_TABLE_@local-4; \
mflr r11; \
lwz r0,0b@got(r11); \
bl JUMPTARGET(_mcount);
# else /* PIC */
# define CALL_MCOUNT \
.section ".data"; \
.align ALIGNARG(2); \
0:.long 0; \
.previous; \
mflr r0; \
lis r11,0b@ha; \
stw r0,4(r1); \
addi r0,r11,0b@l; \
bl JUMPTARGET(_mcount);
# endif /* PIC */
#else /* PROF */
# define CALL_MCOUNT /* Do nothing. */
#endif /* PROF */

8
sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S
View File

@ -34,11 +34,19 @@ ENTRY (BP_SYM (__brk))
lwz r6,8(r1)
#ifdef PIC
mflr r4
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r5
addis r5,r5,__curbrk-1b@ha
mtlr r4
stw r3,__curbrk-1b@l(r5)
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r5
lwz r5,__curbrk@got(r5)
mtlr r4
stw r3,0(r5)
# endif
#else
lis r4,__curbrk@ha
stw r3,__curbrk@l(r4)

7
sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
View File

@ -129,8 +129,15 @@ ENTRY(__getcontext)
#ifdef PIC
mflr r8
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r7
addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r7
# endif
# ifdef SHARED
lwz r7,_rtld_global_ro@got(r7)
mtlr r8

7
sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
View File

@ -58,8 +58,15 @@ ENTRY(__setcontext)
#ifdef PIC
mflr r8
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r7
addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r7
# endif
# ifdef SHARED
lwz r7,_rtld_global_ro@got(r7)
mtlr r8

10
sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S
View File

@ -39,6 +39,8 @@
#define NARGS 3
#endif
/* 0(r1) and 4(r1) are reserved by the ABI, 8(r1), 12(r1), 16(r1) are used
for temp saves. 44(r1) is used to save r30. */
#define stackblock 20
#ifndef __socket
@ -69,12 +71,6 @@ ENTRY(__socket)
stw r8,20+stackblock(r1)
#endif
#if NARGS >= 7
stw r9,24+stackblock(r1)
#endif
#if NARGS >= 8
stw r10,28+stackblock(r1)
#endif
#if NARGS >= 9
#error too many arguments!
#endif
@ -94,6 +90,7 @@ ENTRY(__socket)
mflr r9
stw r9,52(r1)
cfi_offset (lr, 4)
CGOTSETUP
CENABLE
stw r3,16(r1)
li r3,P(SOCKOP_,socket)
@ -107,6 +104,7 @@ ENTRY(__socket)
lwz r4,52(r1)
lwz r0,12(r1)
lwz r3,8(r1)
CGOTRESTORE
mtlr r4
mtcr r0
addi r1,r1,48

14
sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
View File

@ -130,8 +130,15 @@ ENTRY(__swapcontext)
stfd fp0,_UC_FREGS+(32*8)(r3)
#ifdef PIC
mflr r8
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r7
addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r7
# endif
# ifdef SHARED
lwz r7,_rtld_global_ro@got(r7)
mtlr r8
@ -272,8 +279,15 @@ L(no_vec):
#ifdef PIC
mflr r8
# ifdef HAVE_ASM_PPC_REL16
bcl 20,31,1f
1: mflr r7
addis r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
addi r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
# else
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr r7
# endif
# ifdef SHARED
lwz r7,_rtld_global_ro@got(r7)
mtlr r8

3
sysdeps/unix/sysv/linux/sleep.c
View File

@ -1,5 +1,5 @@
/* Implementation of the POSIX sleep function using nanosleep.
Copyright (C) 1996, 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
Copyright (C) 1996,1997,1998,1999,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -21,6 +21,7 @@
#include <errno.h>
#include <time.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
#include <unistd.h>
#include <sys/param.h>

3
sysdeps/unix/sysv/linux/sysctl.c
View File

@ -1,5 +1,5 @@
/* Read or write system information. Linux version.
Copyright (C) 1996-1999, 2000, 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 1996-2000,2002,2003,2005 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
@ -18,6 +18,7 @@
02111-1307 USA. */
#include <errno.h>
#include <string.h> /* For the real memset prototype. */
#include <sys/sysctl.h>
#include <sysdep.h>

3
sysdeps/unix/sysv/linux/system.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2003, 2005 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
@ -18,6 +18,7 @@
#include <sched.h>
#include <signal.h>
#include <string.h> /* For the real memset prototype. */
#include <sysdep.h>
#include <unistd.h>
#include <sys/wait.h>