From 02380086699207fc8e58619f35f60da12470137e Mon Sep 17 00:00:00 2001 From: Andreas Jaeger Date: Wed, 28 Mar 2012 09:22:05 +0200 Subject: Move sysdeps/powerpc/powerpc64/elf files * sysdeps/powerpc/powerpc64/elf/bzero.S: Moved to ... * sysdeps/powerpc/powerpc64/bzero.S: ... here. * sysdeps/powerpc/powerpc64/elf/entry.h: Moved to ... * sysdeps/powerpc/powerpc64/entry.h: ... here. * sysdeps/powerpc/powerpc64/elf/start.S: Moved to ... * sysdeps/powerpc/powerpc64/start.S: here. * sysdeps/powerpc/powerpc64/elf/Makefile: Merge into ... * sysdeps/powerpc/powerpc64/Makefile: ... this. * sysdeps/powerpc/powerpc64/elf/configure.in: Merge into ... * sysdeps/powerpc/powerpc64/configure.in: ... this. * sysdeps/powerpc/powerpc64/elf/configure: Delete file. --- sysdeps/powerpc/powerpc64/Makefile | 10 ++ sysdeps/powerpc/powerpc64/bzero.S | 20 ++++ sysdeps/powerpc/powerpc64/configure.in | 53 +++++++++++ sysdeps/powerpc/powerpc64/elf/Makefile | 11 --- sysdeps/powerpc/powerpc64/elf/bzero.S | 20 ---- sysdeps/powerpc/powerpc64/elf/configure | 148 ----------------------------- sysdeps/powerpc/powerpc64/elf/configure.in | 55 ----------- sysdeps/powerpc/powerpc64/elf/entry.h | 33 ------- sysdeps/powerpc/powerpc64/elf/start.S | 87 ----------------- sysdeps/powerpc/powerpc64/entry.h | 33 +++++++ sysdeps/powerpc/powerpc64/start.S | 87 +++++++++++++++++ 11 files changed, 203 insertions(+), 354 deletions(-) create mode 100644 sysdeps/powerpc/powerpc64/bzero.S delete mode 100644 sysdeps/powerpc/powerpc64/elf/Makefile delete mode 100644 sysdeps/powerpc/powerpc64/elf/bzero.S delete mode 100644 sysdeps/powerpc/powerpc64/elf/configure delete mode 100644 sysdeps/powerpc/powerpc64/elf/configure.in delete mode 100644 sysdeps/powerpc/powerpc64/elf/entry.h delete mode 100644 sysdeps/powerpc/powerpc64/elf/start.S create mode 100644 sysdeps/powerpc/powerpc64/entry.h create mode 100644 sysdeps/powerpc/powerpc64/start.S diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 01889e1..171e89b 100644 --- a/sysdeps/powerpc/powerpc64/Makefile +++ b/sysdeps/powerpc/powerpc64/Makefile @@ -25,6 +25,16 @@ no-special-regs := $(sort $(foreach n,40 41 50 51 60 61 62 63 \ -ffixed-v$n)) \ -ffixed-vrsave -ffixed-vscr -mno-altivec -mno-vsx +# Need to prevent gcc from using fprs in code used during dynamic linking. + +CFLAGS-dl-runtime.os = $(no-special-regs) +CFLAGS-dl-lookup.os = $(no-special-regs) +CFLAGS-dl-misc.os = $(no-special-regs) +CFLAGS-rtld-mempcpy.os = $(no-special-regs) +CFLAGS-rtld-memmove.os = $(no-special-regs) +CFLAGS-rtld-memchr.os = $(no-special-regs) +CFLAGS-rtld-strnlen.os = $(no-special-regs) + ifeq ($(subdir),csu) sysdep_routines += hp-timing elide-routines.os += hp-timing diff --git a/sysdeps/powerpc/powerpc64/bzero.S b/sysdeps/powerpc/powerpc64/bzero.S new file mode 100644 index 0000000..b79f885 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/bzero.S @@ -0,0 +1,20 @@ +/* Optimized bzero `implementation' for PowerPC64. + Copyright (C) 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* This code was moved into memset.S to solve a double stub call problem. + @local would have worked but it is not supported in PowerPC64 asm. */ diff --git a/sysdeps/powerpc/powerpc64/configure.in b/sysdeps/powerpc/powerpc64/configure.in index 67aac66..7d333a7 100644 --- a/sysdeps/powerpc/powerpc64/configure.in +++ b/sysdeps/powerpc/powerpc64/configure.in @@ -40,3 +40,56 @@ rm -f conftest.c conftest.s if test x$libc_cv_overlapping_opd = xyes; then AC_DEFINE(USE_PPC64_OVERLAPPING_OPD) fi + +# Check for support of thread-local storage handling in assembler and +# linker. +AC_CACHE_CHECK(for powerpc64 TLS support, libc_cv_powerpc64_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata","awT",@progbits +x: .quad 1 +x1: .quad 1 +x2: .quad 1 +x3: .quad 1 +x4: .long 1 + .section ".toc","aw" +.LC0: + .quad x@dtpmod + .quad x@dtprel +.LC1: + .quad x1@dtpmod + .quad 0 +.LC2: + .quad x@tprel + .text + addi 3,2,x@got@tlsgd + addi 3,2,.LC0@toc + addi 3,2,x1@got@tlsld + addi 9,3,x1@dtprel + addis 9,3,x2@dtprel@ha + addi 9,9,x2@dtprel@l + ld 9,x3@got@dtprel(2) + addi 3,2,.LC0@toc + lwz 0,x1@dtprel(3) + ld 0,x1@dtprel(3) + addis 9,3,x2@dtprel@ha + lwz 0,x2@dtprel@l(9) + ld 0,x2@dtprel@l(9) + ld 9,x3@got@dtprel(2) + ld 9,x@got@tprel(2) + add 9,9,x@tls + ld 9,.LC2@toc(2) + add 9,9,.LC2@tls + addi 9,13,x1@tprel + addis 9,13,x2@tprel@ha + addi 9,9,x2@tprel@l +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_powerpc64_tls=yes +else + libc_cv_powerpc64_tls=no +fi +rm -f conftest*]) +if test $libc_cv_powerpc64_tls = no; then + AC_MSG_ERROR([the assembler must support TLS]) +fi diff --git a/sysdeps/powerpc/powerpc64/elf/Makefile b/sysdeps/powerpc/powerpc64/elf/Makefile deleted file mode 100644 index 6a77e11..0000000 --- a/sysdeps/powerpc/powerpc64/elf/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# powerpc64/ELF specific definitions. - -# Need to prevent gcc from using fprs in code used during dynamic linking. - -CFLAGS-dl-runtime.os = $(no-special-regs) -CFLAGS-dl-lookup.os = $(no-special-regs) -CFLAGS-dl-misc.os = $(no-special-regs) -CFLAGS-rtld-mempcpy.os = $(no-special-regs) -CFLAGS-rtld-memmove.os = $(no-special-regs) -CFLAGS-rtld-memchr.os = $(no-special-regs) -CFLAGS-rtld-strnlen.os = $(no-special-regs) diff --git a/sysdeps/powerpc/powerpc64/elf/bzero.S b/sysdeps/powerpc/powerpc64/elf/bzero.S deleted file mode 100644 index b79f885..0000000 --- a/sysdeps/powerpc/powerpc64/elf/bzero.S +++ /dev/null @@ -1,20 +0,0 @@ -/* Optimized bzero `implementation' for PowerPC64. - Copyright (C) 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -/* This code was moved into memset.S to solve a double stub call problem. - @local would have worked but it is not supported in PowerPC64 asm. */ diff --git a/sysdeps/powerpc/powerpc64/elf/configure b/sysdeps/powerpc/powerpc64/elf/configure deleted file mode 100644 index a3d24a3..0000000 --- a/sysdeps/powerpc/powerpc64/elf/configure +++ /dev/null @@ -1,148 +0,0 @@ - -# as_fn_set_status STATUS -# ----------------------- -# Set $? to STATUS, without forking. -as_fn_set_status () -{ - return $1 -} # as_fn_set_status - -# as_fn_exit STATUS -# ----------------- -# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. -as_fn_exit () -{ - set +e - as_fn_set_status $1 - exit $1 -} # as_fn_exit -if expr a : '\(a\)' >/dev/null 2>&1 && - test "X`expr 00001 : '.*\(...\)'`" = X001; then - as_expr=expr -else - as_expr=false -fi - -if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then - as_basename=basename -else - as_basename=false -fi - -as_me=`$as_basename -- "$0" || -$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ - X"$0" : 'X\(//\)$' \| \ - X"$0" : 'X\(/\)' \| . 2>/dev/null || -$as_echo X/"$0" | - sed '/^.*\/\([^/][^/]*\)\/*$/{ - s//\1/ - q - } - /^X\/\(\/\/\)$/{ - s//\1/ - q - } - /^X\/\(\/\).*/{ - s//\1/ - q - } - s/.*/./; q'` - - - as_lineno_1=$LINENO as_lineno_1a=$LINENO - as_lineno_2=$LINENO as_lineno_2a=$LINENO - eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && - test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { - # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) - sed -n ' - p - /[$]LINENO/= - ' <$as_myself | - sed ' - s/[$]LINENO.*/&-/ - t lineno - b - :lineno - N - :loop - s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ - t loop - s/-\n.*// - ' >$as_me.lineno && - chmod +x "$as_me.lineno" || - { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } - - # Don't try to exec as it changes $[0], causing all sort of problems - # (the dirname of $[0] is not the place where we might find the - # original and so on. Autoconf is especially sensitive to this). - . "./$as_me.lineno" - # Exit status is that of the last command. - exit -} - -# This file is generated from configure.in by Autoconf. DO NOT EDIT! - # Local configure fragment for sysdeps/powerpc64/elf. - -# Check for support of thread-local storage handling in assembler and -# linker. -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for powerpc64 TLS support" >&5 -$as_echo_n "checking for powerpc64 TLS support... " >&6; } -if ${libc_cv_powerpc64_tls+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat > conftest.s <<\EOF - .section ".tdata","awT",@progbits -x: .quad 1 -x1: .quad 1 -x2: .quad 1 -x3: .quad 1 -x4: .long 1 - .section ".toc","aw" -.LC0: - .quad x@dtpmod - .quad x@dtprel -.LC1: - .quad x1@dtpmod - .quad 0 -.LC2: - .quad x@tprel - .text - addi 3,2,x@got@tlsgd - addi 3,2,.LC0@toc - addi 3,2,x1@got@tlsld - addi 9,3,x1@dtprel - addis 9,3,x2@dtprel@ha - addi 9,9,x2@dtprel@l - ld 9,x3@got@dtprel(2) - addi 3,2,.LC0@toc - lwz 0,x1@dtprel(3) - ld 0,x1@dtprel(3) - addis 9,3,x2@dtprel@ha - lwz 0,x2@dtprel@l(9) - ld 0,x2@dtprel@l(9) - ld 9,x3@got@dtprel(2) - ld 9,x@got@tprel(2) - add 9,9,x@tls - ld 9,.LC2@toc(2) - add 9,9,.LC2@tls - addi 9,13,x1@tprel - addis 9,13,x2@tprel@ha - addi 9,9,x2@tprel@l -EOF -if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5' - { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 - (eval $ac_try) 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; }; then - libc_cv_powerpc64_tls=yes -else - libc_cv_powerpc64_tls=no -fi -rm -f conftest* -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_powerpc64_tls" >&5 -$as_echo "$libc_cv_powerpc64_tls" >&6; } -if test $libc_cv_powerpc64_tls = no; then - as_fn_error $? "the assembler must support TLS" "$LINENO" 5 -fi diff --git a/sysdeps/powerpc/powerpc64/elf/configure.in b/sysdeps/powerpc/powerpc64/elf/configure.in deleted file mode 100644 index 9a375c6..0000000 --- a/sysdeps/powerpc/powerpc64/elf/configure.in +++ /dev/null @@ -1,55 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/powerpc64/elf. - -# Check for support of thread-local storage handling in assembler and -# linker. -AC_CACHE_CHECK(for powerpc64 TLS support, libc_cv_powerpc64_tls, [dnl -cat > conftest.s <<\EOF - .section ".tdata","awT",@progbits -x: .quad 1 -x1: .quad 1 -x2: .quad 1 -x3: .quad 1 -x4: .long 1 - .section ".toc","aw" -.LC0: - .quad x@dtpmod - .quad x@dtprel -.LC1: - .quad x1@dtpmod - .quad 0 -.LC2: - .quad x@tprel - .text - addi 3,2,x@got@tlsgd - addi 3,2,.LC0@toc - addi 3,2,x1@got@tlsld - addi 9,3,x1@dtprel - addis 9,3,x2@dtprel@ha - addi 9,9,x2@dtprel@l - ld 9,x3@got@dtprel(2) - addi 3,2,.LC0@toc - lwz 0,x1@dtprel(3) - ld 0,x1@dtprel(3) - addis 9,3,x2@dtprel@ha - lwz 0,x2@dtprel@l(9) - ld 0,x2@dtprel@l(9) - ld 9,x3@got@dtprel(2) - ld 9,x@got@tprel(2) - add 9,9,x@tls - ld 9,.LC2@toc(2) - add 9,9,.LC2@tls - addi 9,13,x1@tprel - addis 9,13,x2@tprel@ha - addi 9,9,x2@tprel@l -EOF -dnl -if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_powerpc64_tls=yes -else - libc_cv_powerpc64_tls=no -fi -rm -f conftest*]) -if test $libc_cv_powerpc64_tls = no; then - AC_MSG_ERROR([the assembler must support TLS]) -fi diff --git a/sysdeps/powerpc/powerpc64/elf/entry.h b/sysdeps/powerpc/powerpc64/elf/entry.h deleted file mode 100644 index 2a54fe7..0000000 --- a/sysdeps/powerpc/powerpc64/elf/entry.h +++ /dev/null @@ -1,33 +0,0 @@ -/* Finding the entry point and start of text. PowerPC64 version. - Copyright (C) 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - - -#ifndef __ASSEMBLY__ -extern void _start (void); -#endif - -#define ENTRY_POINT _start - -/* We have to provide a special declaration. */ -#define ENTRY_POINT_DECL(class) class void _start (void); - -/* Use the address of ._start as the lowest address for which we need - to keep profiling records. We can't copy the ia64 scheme as our - entry poiny address is really the address of the function - descriptor, not the actual function entry. */ -#define TEXT_START (((long int *) ENTRY_POINT)[0]) diff --git a/sysdeps/powerpc/powerpc64/elf/start.S b/sysdeps/powerpc/powerpc64/elf/start.S deleted file mode 100644 index d9c92d1..0000000 --- a/sysdeps/powerpc/powerpc64/elf/start.S +++ /dev/null @@ -1,87 +0,0 @@ -/* Startup code for programs linked with GNU libc. PowerPC64 version. - Copyright (C) 1998,1999,2000,2001,2002,2003,2009 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include "bp-sym.h" - - /* These are the various addresses we require. */ -#ifdef PIC - .section ".data.rel.ro.local","aw" -#else - .section ".rodata" -#endif - .align 3 -L(start_addresses): - .quad 0 /* was _SDA_BASE_ but not in 64-bit ABI*/ -/* function descriptors so don't need JUMPTARGET */ - .quad BP_SYM(main) - .quad __libc_csu_init - .quad __libc_csu_fini - - ASM_SIZE_DIRECTIVE(L(start_addresses)) - - .section ".toc","aw" -.L01: - .tc L(start_addresses)[TC],L(start_addresses) - .section ".text" -ENTRY(_start) - /* Save the stack pointer, in case we're statically linked under Linux. */ - mr r9,r1 - /* Set up an initial stack frame, and clear the LR. */ - clrrdi r1,r1,4 - li r0,0 - stdu r1,-128(r1) - mtlr r0 - std r0,0(r1) - - /* put the address of start_addresses in r8... ** -** PPC64 ABI uses R13 for thread local, so we leave it alone */ - ld r8,.L01(r2) - - /* and continue in libc-start, in glibc. */ - b JUMPTARGET(BP_SYM(__libc_start_main)) -/* The linker needs this nop to recognize that it's OK to call via a - TOC adjusting stub. */ - nop - -END(_start) - -/* Define a symbol for the first piece of initialized data. */ - .section ".data" - .globl __data_start -__data_start: - .long 0 -weak_alias (__data_start, data_start) diff --git a/sysdeps/powerpc/powerpc64/entry.h b/sysdeps/powerpc/powerpc64/entry.h new file mode 100644 index 0000000..2a54fe7 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/entry.h @@ -0,0 +1,33 @@ +/* Finding the entry point and start of text. PowerPC64 version. + Copyright (C) 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + + +#ifndef __ASSEMBLY__ +extern void _start (void); +#endif + +#define ENTRY_POINT _start + +/* We have to provide a special declaration. */ +#define ENTRY_POINT_DECL(class) class void _start (void); + +/* Use the address of ._start as the lowest address for which we need + to keep profiling records. We can't copy the ia64 scheme as our + entry poiny address is really the address of the function + descriptor, not the actual function entry. */ +#define TEXT_START (((long int *) ENTRY_POINT)[0]) diff --git a/sysdeps/powerpc/powerpc64/start.S b/sysdeps/powerpc/powerpc64/start.S new file mode 100644 index 0000000..d9c92d1 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/start.S @@ -0,0 +1,87 @@ +/* Startup code for programs linked with GNU libc. PowerPC64 version. + Copyright (C) 1998,1999,2000,2001,2002,2003,2009 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include "bp-sym.h" + + /* These are the various addresses we require. */ +#ifdef PIC + .section ".data.rel.ro.local","aw" +#else + .section ".rodata" +#endif + .align 3 +L(start_addresses): + .quad 0 /* was _SDA_BASE_ but not in 64-bit ABI*/ +/* function descriptors so don't need JUMPTARGET */ + .quad BP_SYM(main) + .quad __libc_csu_init + .quad __libc_csu_fini + + ASM_SIZE_DIRECTIVE(L(start_addresses)) + + .section ".toc","aw" +.L01: + .tc L(start_addresses)[TC],L(start_addresses) + .section ".text" +ENTRY(_start) + /* Save the stack pointer, in case we're statically linked under Linux. */ + mr r9,r1 + /* Set up an initial stack frame, and clear the LR. */ + clrrdi r1,r1,4 + li r0,0 + stdu r1,-128(r1) + mtlr r0 + std r0,0(r1) + + /* put the address of start_addresses in r8... ** +** PPC64 ABI uses R13 for thread local, so we leave it alone */ + ld r8,.L01(r2) + + /* and continue in libc-start, in glibc. */ + b JUMPTARGET(BP_SYM(__libc_start_main)) +/* The linker needs this nop to recognize that it's OK to call via a + TOC adjusting stub. */ + nop + +END(_start) + +/* Define a symbol for the first piece of initialized data. */ + .section ".data" + .globl __data_start +__data_start: + .long 0 +weak_alias (__data_start, data_start) -- cgit v1.1