diff options
43 files changed, 551 insertions, 79 deletions
@@ -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 diff --git a/config.h.in b/config.h.in index 5406d41111..70e67bb912 100644 --- a/config.h.in +++ b/config.h.in @@ -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 + /* */ @@ -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 diff --git a/elf/tls-macros.h b/elf/tls-macros.h index 0ae9e65dc0..37cbe7514f 100644 --- a/elf/tls-macros.h +++ b/elf/tls-macros.h @@ -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__ diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index 24dbbd8f42..79cb785a22 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -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 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h index 2f7c546a4c..865da8e8ca 100644 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -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 diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S index 920c45eee2..724d4cc541 100644 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S +++ b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S @@ -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 diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 497b33d8a3..7a305bfbfc 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -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. diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h index 393c171eef..84acf38434 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -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 diff --git a/sysdeps/posix/sigignore.c b/sysdeps/posix/sigignore.c index 361a19e0dc..9787e8d234 100644 --- a/sysdeps/posix/sigignore.c +++ b/sysdeps/posix/sigignore.c @@ -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) diff --git a/sysdeps/posix/signal.c b/sysdeps/posix/signal.c index 9a8efee043..9fc514c729 100644 --- a/sysdeps/posix/signal.c +++ b/sysdeps/posix/signal.c @@ -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. */ diff --git a/sysdeps/posix/sigset.c b/sysdeps/posix/sigset.c index 873c1cb1e6..31e39d78b5 100644 --- a/sysdeps/posix/sigset.c +++ b/sysdeps/posix/sigset.c @@ -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. */ diff --git a/sysdeps/posix/sysv_signal.c b/sysdeps/posix/sysv_signal.c index ca2e84f372..16fcd2c2ab 100644 --- a/sysdeps/posix/sysv_signal.c +++ b/sysdeps/posix/sysv_signal.c @@ -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 diff --git a/sysdeps/powerpc/powerpc32/configure b/sysdeps/powerpc/powerpc32/configure new file mode 100644 index 0000000000..9ebac38b57 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/configure @@ -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 $libc_cv_ppc_rel16 = yes; then + cat >>confdefs.h <<\_ACEOF +#define HAVE_ASM_PPC_REL16 1 +_ACEOF + +fi diff --git a/sysdeps/powerpc/powerpc32/configure.in b/sysdeps/powerpc/powerpc32/configure.in new file mode 100644 index 0000000000..6d2c41cb9a --- /dev/null +++ b/sysdeps/powerpc/powerpc32/configure.in @@ -0,0 +1,18 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/powerpc/powerpc32. + +# See whether gas has R_PPC_REL16 relocs. +AC_CACHE_CHECK(for R_PPC_REL16 gas support, libc_cv_ppc_rel16, [dnl +cat > conftest.s <<\EOF + .text + addis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha +EOF +if AC_TRY_COMMAND(${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 diff --git a/sysdeps/powerpc/powerpc32/dl-dtprocnum.h b/sysdeps/powerpc/powerpc32/dl-dtprocnum.h new file mode 100644 index 0000000000..7fe2be7939 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/dl-dtprocnum.h @@ -0,0 +1,3 @@ +/* Number of extra dynamic section entries for this architecture. By + default there are none. */ +#define DT_THISPROCNUM DT_PPC_NUM diff --git a/sysdeps/powerpc/powerpc32/dl-machine.h b/sysdeps/powerpc/powerpc32/dl-machine.h index 545c19b300..496fa71ecc 100644 --- a/sysdeps/powerpc/powerpc32/dl-machine.h +++ b/sysdeps/powerpc/powerpc32/dl-machine.h @@ -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, diff --git a/sysdeps/powerpc/powerpc32/dl-start.S b/sysdeps/powerpc/powerpc32/dl-start.S index d72202d4a4..e1f7f6e24a 100644 --- a/sysdeps/powerpc/powerpc32/dl-start.S +++ b/sysdeps/powerpc/powerpc32/dl-start.S @@ -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. */ diff --git a/sysdeps/powerpc/powerpc32/elf/start.S b/sysdeps/powerpc/powerpc32/elf/start.S index 7827357a6c..bafd2ae001 100644 --- a/sysdeps/powerpc/powerpc32/elf/start.S +++ b/sysdeps/powerpc/powerpc32/elf/start.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S index 6dfe6a67d5..73cc8181f9 100644 --- a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S +++ b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/fpu/s_ceil.S b/sysdeps/powerpc/powerpc32/fpu/s_ceil.S index 7924e34648..13afba88f0 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_ceil.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_ceil.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S b/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S index 9315d8d2df..f8ca1de08c 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_floor.S b/sysdeps/powerpc/powerpc32/fpu/s_floor.S index c8f59c24a6..5dfe8f2d9a 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_floor.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_floor.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_floorf.S b/sysdeps/powerpc/powerpc32/fpu/s_floorf.S index 8ee0644ac9..31b71ad229 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_floorf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_floorf.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_lround.S b/sysdeps/powerpc/powerpc32/fpu/s_lround.S index 72fd49ba46..a85743164c 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_lround.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_lround.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/fpu/s_rint.S b/sysdeps/powerpc/powerpc32/fpu/s_rint.S index 4abdcedfe8..1cfcd78b5c 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_rint.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_rint.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_rintf.S b/sysdeps/powerpc/powerpc32/fpu/s_rintf.S index d02bd066b8..93c02667fe 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_rintf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_rintf.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_round.S b/sysdeps/powerpc/powerpc32/fpu/s_round.S index 96fc2984fd..53b45916d1 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_round.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_round.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/fpu/s_roundf.S b/sysdeps/powerpc/powerpc32/fpu/s_roundf.S index 87965dea80..39ba08655a 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_roundf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_roundf.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/fpu/s_trunc.S b/sysdeps/powerpc/powerpc32/fpu/s_trunc.S index 7a3e705a81..827e8cb940 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_trunc.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_trunc.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S index 5275c69d29..55e7a74b41 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S @@ -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) diff --git a/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S index be2cf4d69d..cf3f215f2d 100644 --- a/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S +++ b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/memset.S b/sysdeps/powerpc/powerpc32/memset.S index 4c0edc8e45..f09c294674 100644 --- a/sysdeps/powerpc/powerpc32/memset.S +++ b/sysdeps/powerpc/powerpc32/memset.S @@ -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 diff --git a/sysdeps/powerpc/powerpc32/ppc-mcount.S b/sysdeps/powerpc/powerpc32/ppc-mcount.S index 314c8ee703..c1a08d379c 100644 --- a/sysdeps/powerpc/powerpc32/ppc-mcount.S +++ b/sysdeps/powerpc/powerpc32/ppc-mcount.S @@ -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 */ diff --git a/sysdeps/powerpc/powerpc32/sysdep.h b/sysdeps/powerpc/powerpc32/sysdep.h index 775073f325..552f595a10 100644 --- a/sysdeps/powerpc/powerpc32/sysdep.h +++ b/sysdeps/powerpc/powerpc32/sysdep.h @@ -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; \ - 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; \ +# define CALL_MCOUNT \ 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 */ diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S index a737322e2a..21ad98e501 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S @@ -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) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S index 4e6cf4b352..10211458d5 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S @@ -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 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S index b7a82a0182..eff60f9bbf 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S @@ -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 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S index c52ad9babf..72170c95c0 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S @@ -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 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S index 0c84d48d10..6e46abadb0 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S @@ -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 diff --git a/sysdeps/unix/sysv/linux/sleep.c b/sysdeps/unix/sysv/linux/sleep.c index d94e4f62fd..0e41a11338 100644 --- a/sysdeps/unix/sysv/linux/sleep.c +++ b/sysdeps/unix/sysv/linux/sleep.c @@ -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> diff --git a/sysdeps/unix/sysv/linux/sysctl.c b/sysdeps/unix/sysv/linux/sysctl.c index 7e601acf2c..637fca5968 100644 --- a/sysdeps/unix/sysv/linux/sysctl.c +++ b/sysdeps/unix/sysv/linux/sysctl.c @@ -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> diff --git a/sysdeps/unix/sysv/linux/system.c b/sysdeps/unix/sysv/linux/system.c index 3fdff04c22..c5b389ea29 100644 --- a/sysdeps/unix/sysv/linux/system.c +++ b/sysdeps/unix/sysv/linux/system.c @@ -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> |