diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/elf/backtracesyms.c | 122 | ||||
| -rw-r--r-- | sysdeps/generic/elf/backtracesymsfd.c | 125 | ||||
| -rw-r--r-- | sysdeps/generic/ifunc-sel.h (renamed from sysdeps/generic/elf/ifunc-sel.h) | 0 | ||||
| -rw-r--r-- | sysdeps/i386/Versions | 6 | ||||
| -rw-r--r-- | sysdeps/i386/configure | 44 | ||||
| -rw-r--r-- | sysdeps/i386/configure.in | 34 | ||||
| -rw-r--r-- | sysdeps/i386/elf/Versions | 6 | ||||
| -rw-r--r-- | sysdeps/i386/elf/configure | 128 | ||||
| -rw-r--r-- | sysdeps/i386/elf/configure.in | 36 | ||||
| -rw-r--r-- | sysdeps/i386/start.S (renamed from sysdeps/i386/elf/start.S) | 3 | ||||
| -rw-r--r-- | sysdeps/unix/i386/start.c | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sparc/start.c | 186 | ||||
| -rw-r--r-- | sysdeps/unix/start.c | 95 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure | 367 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure.in | 122 | ||||
| -rw-r--r-- | sysdeps/x86_64/elf/configure | 125 | ||||
| -rw-r--r-- | sysdeps/x86_64/elf/configure.in | 33 | ||||
| -rw-r--r-- | sysdeps/x86_64/start.S (renamed from sysdeps/x86_64/elf/start.S) | 0 |
18 files changed, 572 insertions, 862 deletions
diff --git a/sysdeps/generic/elf/backtracesyms.c b/sysdeps/generic/elf/backtracesyms.c deleted file mode 100644 index d75ce0a321..0000000000 --- a/sysdeps/generic/elf/backtracesyms.c +++ /dev/null @@ -1,122 +0,0 @@ -/* Return list with names for address in backtrace. - Copyright (C) 1998,1999,2000,2001,2003,2009 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <assert.h> -#include <execinfo.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <ldsodefs.h> - -#if __ELF_NATIVE_CLASS == 32 -# define WORD_WIDTH 8 -#else -/* We assyme 64bits. */ -# define WORD_WIDTH 16 -#endif - - -char ** -__backtrace_symbols (array, size) - void *const *array; - int size; -{ - Dl_info info[size]; - int status[size]; - int cnt; - size_t total = 0; - char **result; - - /* Fill in the information we can get from `dladdr'. */ - for (cnt = 0; cnt < size; ++cnt) - { - struct link_map *map; - status[cnt] = _dl_addr (array[cnt], &info[cnt], &map, NULL); - if (status[cnt] && info[cnt].dli_fname && info[cnt].dli_fname[0] != '\0') - { - /* We have some info, compute the length of the string which will be - "<file-name>(<sym-name>+offset) [address]. */ - total += (strlen (info[cnt].dli_fname ?: "") - + strlen (info[cnt].dli_sname ?: "") - + 3 + WORD_WIDTH + 3 + WORD_WIDTH + 5); - - /* The load bias is more useful to the user than the load - address. The use of these addresses is to calculate an - address in the ELF file, so its prelinked bias is not - something we want to subtract out. */ - info[cnt].dli_fbase = (void *) map->l_addr; - } - else - total += 5 + WORD_WIDTH; - } - - /* Allocate memory for the result. */ - result = (char **) malloc (size * sizeof (char *) + total); - if (result != NULL) - { - char *last = (char *) (result + size); - - for (cnt = 0; cnt < size; ++cnt) - { - result[cnt] = last; - - if (status[cnt] - && info[cnt].dli_fname != NULL && info[cnt].dli_fname[0] != '\0') - { - if (info[cnt].dli_sname == NULL) - /* We found no symbol name to use, so describe it as - relative to the file. */ - info[cnt].dli_saddr = info[cnt].dli_fbase; - - if (info[cnt].dli_sname == NULL && info[cnt].dli_saddr == 0) - last += 1 + sprintf (last, "%s(%s) [%p]", - info[cnt].dli_fname ?: "", - info[cnt].dli_sname ?: "", - array[cnt]); - else - { - char sign; - ptrdiff_t offset; - if (array[cnt] >= (void *) info[cnt].dli_saddr) - { - sign = '+'; - offset = array[cnt] - info[cnt].dli_saddr; - } - else - { - sign = '-'; - offset = info[cnt].dli_saddr - array[cnt]; - } - - last += 1 + sprintf (last, "%s(%s%c%#tx) [%p]", - info[cnt].dli_fname ?: "", - info[cnt].dli_sname ?: "", - sign, offset, array[cnt]); - } - } - else - last += 1 + sprintf (last, "[%p]", array[cnt]); - } - assert (last <= (char *) result + size * sizeof (char *) + total); - } - - return result; -} -weak_alias (__backtrace_symbols, backtrace_symbols) diff --git a/sysdeps/generic/elf/backtracesymsfd.c b/sysdeps/generic/elf/backtracesymsfd.c deleted file mode 100644 index 3562c50a78..0000000000 --- a/sysdeps/generic/elf/backtracesymsfd.c +++ /dev/null @@ -1,125 +0,0 @@ -/* Write formatted list with names for addresses in backtrace to a file. - Copyright (C) 1998,2000,2003,2005,2009,2011 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <execinfo.h> -#include <string.h> -#include <sys/uio.h> - -#include <_itoa.h> -#include <ldsodefs.h> - -#if __ELF_NATIVE_CLASS == 32 -# define WORD_WIDTH 8 -#else -/* We assume 64bits. */ -# define WORD_WIDTH 16 -#endif - - -void -__backtrace_symbols_fd (array, size, fd) - void *const *array; - int size; - int fd; -{ - struct iovec iov[9]; - int cnt; - - for (cnt = 0; cnt < size; ++cnt) - { - char buf[WORD_WIDTH]; - char buf2[WORD_WIDTH]; - Dl_info info; - struct link_map *map; - size_t last = 0; - - if (_dl_addr (array[cnt], &info, &map, NULL) - && info.dli_fname != NULL && info.dli_fname[0] != '\0') - { - /* Name of the file. */ - iov[0].iov_base = (void *) info.dli_fname; - iov[0].iov_len = strlen (info.dli_fname); - last = 1; - - if (info.dli_sname != NULL || map->l_addr != 0) - { - size_t diff; - - iov[last].iov_base = (void *) "("; - iov[last].iov_len = 1; - ++last; - - if (info.dli_sname != NULL) - { - /* We have a symbol name. */ - iov[last].iov_base = (void *) info.dli_sname; - iov[last].iov_len = strlen (info.dli_sname); - ++last; - } - else - /* We have no symbol, so describe it as relative to the file. - The load bias is more useful to the user than the load - address. The use of these addresses is to calculate an - address in the ELF file, so its prelinked bias is not - something we want to subtract out. */ - info.dli_saddr = (void *) map->l_addr; - - if (array[cnt] >= (void *) info.dli_saddr) - { - iov[last].iov_base = (void *) "+0x"; - diff = array[cnt] - info.dli_saddr; - } - else - { - iov[last].iov_base = (void *) "-0x"; - diff = info.dli_saddr - array[cnt]; - } - iov[last].iov_len = 3; - ++last; - - iov[last].iov_base = _itoa_word ((unsigned long int) diff, - &buf2[WORD_WIDTH], 16, 0); - iov[last].iov_len = (&buf2[WORD_WIDTH] - - (char *) iov[last].iov_base); - ++last; - - iov[last].iov_base = (void *) ")"; - iov[last].iov_len = 1; - ++last; - } - } - - iov[last].iov_base = (void *) "[0x"; - iov[last].iov_len = 3; - ++last; - - iov[last].iov_base = _itoa_word ((unsigned long int) array[cnt], - &buf[WORD_WIDTH], 16, 0); - iov[last].iov_len = &buf[WORD_WIDTH] - (char *) iov[last].iov_base; - ++last; - - iov[last].iov_base = (void *) "]\n"; - iov[last].iov_len = 2; - ++last; - - __writev (fd, iov, last); - } -} -weak_alias (__backtrace_symbols_fd, backtrace_symbols_fd) -libc_hidden_def (__backtrace_symbols_fd) diff --git a/sysdeps/generic/elf/ifunc-sel.h b/sysdeps/generic/ifunc-sel.h index 6a27b69c5b..6a27b69c5b 100644 --- a/sysdeps/generic/elf/ifunc-sel.h +++ b/sysdeps/generic/ifunc-sel.h diff --git a/sysdeps/i386/Versions b/sysdeps/i386/Versions index b0230d31cf..7be44aad7a 100644 --- a/sysdeps/i386/Versions +++ b/sysdeps/i386/Versions @@ -1,3 +1,9 @@ +ld { + GLIBC_2.3 { + # The alternative i386 runtime interface to TLS. + ___tls_get_addr; + } +} libc { GLIBC_2.0 { # Functions from libgcc. diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure index baa66096a6..e60b4982e4 100644 --- a/sysdeps/i386/configure +++ b/sysdeps/i386/configure @@ -348,3 +348,47 @@ fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5 $as_echo "$libc_cv_cc_novzeroupper" >&6; } + +# Check for support of thread-local storage handling in assembler and +# linker. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for i386 TLS support" >&5 +$as_echo_n "checking for i386 TLS support... " >&6; } +if ${libc_cv_386_tls+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.s <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .long 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 4 + .text +baz: leal bar@TLSLDM(%ebx), %eax + leal bar@DTPOFF(%eax), %edx + subl foo@GOTTPOFF(%edx), %eax + subl $bar@TPOFF, %eax + movl foo@GOTNTPOFF(%edx), %ecx + movl %gs:(%ecx), %eax + movl %gs:bar@NTPOFF, %eax +EOF +if { ac_try='${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_386_tls=yes +else + libc_cv_386_tls=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_386_tls" >&5 +$as_echo "$libc_cv_386_tls" >&6; } +if test $libc_cv_386_tls = no; then + as_fn_error $? "the assembler must support TLS" "$LINENO" 5 +fi + +$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h + diff --git a/sysdeps/i386/configure.in b/sysdeps/i386/configure.in index 7b4879d54a..b9e6f9eef4 100644 --- a/sysdeps/i386/configure.in +++ b/sysdeps/i386/configure.in @@ -85,3 +85,37 @@ LIBC_TRY_CC_OPTION([-mno-vzeroupper], [libc_cv_cc_novzeroupper=yes], [libc_cv_cc_novzeroupper=no]) ]) + +# Check for support of thread-local storage handling in assembler and +# linker. +AC_CACHE_CHECK(for i386 TLS support, libc_cv_386_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .long 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 4 + .text +baz: leal bar@TLSLDM(%ebx), %eax + leal bar@DTPOFF(%eax), %edx + subl foo@GOTTPOFF(%edx), %eax + subl $bar@TPOFF, %eax + movl foo@GOTNTPOFF(%edx), %ecx + movl %gs:(%ecx), %eax + movl %gs:bar@NTPOFF, %eax +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_386_tls=yes +else + libc_cv_386_tls=no +fi +rm -f conftest*]) +if test $libc_cv_386_tls = no; then + AC_MSG_ERROR([the assembler must support TLS]) +fi + +dnl It is always possible to access static and hidden symbols in an +dnl position independent way. +AC_DEFINE(PI_STATIC_AND_HIDDEN) diff --git a/sysdeps/i386/elf/Versions b/sysdeps/i386/elf/Versions deleted file mode 100644 index 5ca6686b83..0000000000 --- a/sysdeps/i386/elf/Versions +++ /dev/null @@ -1,6 +0,0 @@ -ld { - GLIBC_2.3 { - # The alternative i386 runtime interface to TLS. - ___tls_get_addr; - } -} diff --git a/sysdeps/i386/elf/configure b/sysdeps/i386/elf/configure deleted file mode 100644 index 83e89bd0a0..0000000000 --- a/sysdeps/i386/elf/configure +++ /dev/null @@ -1,128 +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/i386/elf. - -# Check for support of thread-local storage handling in assembler and -# linker. -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for i386 TLS support" >&5 -$as_echo_n "checking for i386 TLS support... " >&6; } -if ${libc_cv_386_tls+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat > conftest.s <<\EOF - .section ".tdata", "awT", @progbits - .globl foo -foo: .long 1 - .section ".tbss", "awT", @nobits - .globl bar -bar: .skip 4 - .text -baz: leal bar@TLSLDM(%ebx), %eax - leal bar@DTPOFF(%eax), %edx - subl foo@GOTTPOFF(%edx), %eax - subl $bar@TPOFF, %eax - movl foo@GOTNTPOFF(%edx), %ecx - movl %gs:(%ecx), %eax - movl %gs:bar@NTPOFF, %eax -EOF -if { ac_try='${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_386_tls=yes -else - libc_cv_386_tls=no -fi -rm -f conftest* -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_386_tls" >&5 -$as_echo "$libc_cv_386_tls" >&6; } -if test $libc_cv_386_tls = no; then - as_fn_error $? "the assembler must support TLS" "$LINENO" 5 -fi - -$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h - diff --git a/sysdeps/i386/elf/configure.in b/sysdeps/i386/elf/configure.in deleted file mode 100644 index 0c436f3f41..0000000000 --- a/sysdeps/i386/elf/configure.in +++ /dev/null @@ -1,36 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/i386/elf. - -# Check for support of thread-local storage handling in assembler and -# linker. -AC_CACHE_CHECK(for i386 TLS support, libc_cv_386_tls, [dnl -cat > conftest.s <<\EOF - .section ".tdata", "awT", @progbits - .globl foo -foo: .long 1 - .section ".tbss", "awT", @nobits - .globl bar -bar: .skip 4 - .text -baz: leal bar@TLSLDM(%ebx), %eax - leal bar@DTPOFF(%eax), %edx - subl foo@GOTTPOFF(%edx), %eax - subl $bar@TPOFF, %eax - movl foo@GOTNTPOFF(%edx), %ecx - movl %gs:(%ecx), %eax - movl %gs:bar@NTPOFF, %eax -EOF -dnl -if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_386_tls=yes -else - libc_cv_386_tls=no -fi -rm -f conftest*]) -if test $libc_cv_386_tls = no; then - AC_MSG_ERROR([the assembler must support TLS]) -fi - -dnl It is always possible to access static and hidden symbols in an -dnl position independent way. -AC_DEFINE(PI_STATIC_AND_HIDDEN) diff --git a/sysdeps/i386/elf/start.S b/sysdeps/i386/start.S index 992c358c07..990f3715d5 100644 --- a/sysdeps/i386/elf/start.S +++ b/sysdeps/i386/start.S @@ -1,6 +1,5 @@ /* Startup code compliant to the ELF i386 ABI. - Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004 - Free Software Foundation, Inc. + Copyright (C) 1995-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or diff --git a/sysdeps/unix/i386/start.c b/sysdeps/unix/i386/start.c deleted file mode 100644 index e6c89ee3f3..0000000000 --- a/sysdeps/unix/i386/start.c +++ /dev/null @@ -1,2 +0,0 @@ -#define DUMMIES dummy0 -#include <sysdeps/unix/start.c> diff --git a/sysdeps/unix/sparc/start.c b/sysdeps/unix/sparc/start.c deleted file mode 100644 index 86fb8bb0a5..0000000000 --- a/sysdeps/unix/sparc/start.c +++ /dev/null @@ -1,186 +0,0 @@ -/* Copyright (C) 1991-1997,2004,2012 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> - -#ifndef NO_SHLIB -#include <sys/exec.h> -#include <sys/types.h> -#include <sys/mman.h> -#include <link.h> -#include <syscall.h> -#endif - -#if !defined (__GNUC__) || __GNUC__ < 2 - #error This file uses GNU C extensions; you must compile with GCC version 2. -#endif - -/* The first piece of initialized data. */ -int __data_start = 0; -weak_alias (__data_start, data_start) - -extern void __libc_init (int argc, char **argv, char **envp) __THROW; -extern int main (int argc, char **argv, char **envp) __THROW; - -register long int sp asm("%sp"), fp asm("%fp"); - -#ifndef NO_SHLIB -static void init_shlib (void) __THROW; -#endif - -#ifndef NO_EXPLICIT_START -/* Declare _start with an explicit assembly symbol name of `start' - (note no leading underscore). This is the name Sun's crt0.o uses, - and programs are often linked with `ld -e start'. */ -void _start (void) asm ("start"); -#endif - -void -_start (void) -{ - /* It is important that these be declared `register'. - Otherwise, when compiled without optimization, they are put on the - stack, which loses completely after we zero the FP. */ - register int argc; - register char **argv, **envp; - - /* Unwind the frame built when we entered the function. */ - asm("restore"); - - /* And clear the frame pointer. */ - fp = 0; - - /* The argument info starts after one register - window (64 bytes) past the SP. */ - argc = ((int *) sp)[16]; - argv = (char **) &((int *) sp)[17]; - envp = &argv[argc + 1]; - __environ = envp; - -#ifndef NO_SHLIB - init_shlib (); -#endif - - /* Allocate 24 bytes of stack space for the register save area. */ - sp -= 24; - __libc_init (argc, argv, envp); - - exit (main (argc, argv, envp)); -} - -#ifndef NO_SHLIB - -/* System calls for use by the bootstrap routine. - These are defined here since the usual calls may be dynamically linked. */ - -int syscall (int sysno, ...) asm ("init_syscall"); -asm ("init_syscall:\n" - " clr %g1\n" - " ta 0\n" - " bcc 1f\n" - " sethi %hi(_errno), %g1\n" - " st %o0, [%g1 + %lo(_errno)]\n" - " sub %g0, 1, %o0\n" - "1:retl\n" - " nop"); - -static void -init_shlib () -{ - extern struct link_dynamic _DYNAMIC; - int so, zf; - caddr_t somap; - caddr_t sodmap; - caddr_t sobssmap; - void (*ldstart) (int, int); - struct exec soexec; - struct - { - caddr_t crt_ba; - int crt_dzfd; - int crt_ldfd; - struct link_dynamic *crt_dp; - char **crt_ep; - caddr_t crt_bp; - } soarg; - - /* If not dynamically linked, do nothing. */ - if (&_DYNAMIC == 0) - return; - - /* Map in the dynamic linker. */ - so = syscall (SYS_open, "/usr/lib/ld.so", O_RDONLY); - if (syscall (SYS_read, so, &soexec, sizeof (soexec)) != sizeof (soexec) - || soexec.a_magic != ZMAGIC) - { - static const char emsg[] = "crt0: no /usr/lib/ld.so\n"; - - syscall (SYS_write, 2, emsg, sizeof (emsg) - 1); - syscall (SYS_exit, 127); - } - somap = (caddr_t) syscall (SYS_mmap, 0, - soexec.a_text + soexec.a_data + soexec.a_bss, - PROT_READ | PROT_EXEC, _MAP_NEW | MAP_PRIVATE, - so, 0); - sodmap = (caddr_t) syscall (SYS_mmap, somap + soexec.a_text, soexec.a_data, - PROT_READ | PROT_WRITE | PROT_EXEC, - _MAP_NEW | MAP_FIXED | MAP_PRIVATE, - so, soexec.a_text); - zf = syscall (SYS_open, "/dev/zero", O_RDONLY); - if (soexec.a_bss != 0) - sobssmap = (caddr_t) syscall (SYS_mmap, - somap + soexec.a_text + soexec.a_data, - soexec.a_bss, - PROT_READ | PROT_WRITE | PROT_EXEC, - _MAP_NEW | MAP_FIXED | MAP_PRIVATE, - zf, 0); - - /* Call the entry point of the dynamic linker. */ - soarg.crt_ba = somap; - soarg.crt_dzfd = zf; - soarg.crt_ldfd = so; - soarg.crt_dp = &_DYNAMIC; - soarg.crt_ep = __environ; - soarg.crt_bp = (caddr_t) &&retaddr; - - ldstart = (__typeof (ldstart)) (somap + soexec.a_entry); - (*ldstart) (1, (char *) &soarg - (char *) sp); - - retaddr: -} - -#endif diff --git a/sysdeps/unix/start.c b/sysdeps/unix/start.c deleted file mode 100644 index ecedc55119..0000000000 --- a/sysdeps/unix/start.c +++ /dev/null @@ -1,95 +0,0 @@ -/* Copyright (C) 1991, 93, 1995-1998, 2000, 2012 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> -#include <sysdep.h> /* In case it wants to define anything. */ - -/* The first piece of initialized data. */ -int __data_start = 0; -weak_alias (__data_start, data_start) - -#ifdef DUMMIES -#define ARG_DUMMIES DUMMIES, -#define DECL_DUMMIES int DUMMIES; -#else -#define ARG_DUMMIES -#define DECL_DUMMIES -#endif - -extern void __libc_init (int argc, char **argv, char **envp); -extern int main (int argc, char **argv, char **envp); - - -/* Not a prototype because it gets called strangely. */ -static void start1(); - -#ifndef HAVE__start - -/* N.B.: It is important that this be the first function. - This file is the first thing in the text section. */ -void -_start () -{ - start1 (); -} - -#endif - -/* ARGSUSED */ -static void -start1 (ARG_DUMMIES argc, argp) - DECL_DUMMIES - int argc; - char *argp; -{ - char **argv = &argp; - - /* The environment starts just after ARGV. */ - __environ = &argv[argc + 1]; - - /* If the first thing after ARGV is the arguments - themselves, there is no environment. */ - if ((char *) __environ == *argv) - /* The environment is empty. Make __environ - point at ARGV[ARGC], which is NULL. */ - --__environ; - - /* Do C library initializations. */ - __libc_init (argc, argv, __environ); - - /* Call the user program. */ - exit (main (argc, argv, __environ)); -} diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index bd699bbccb..8b1a4de1d4 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -1,3 +1,366 @@ -# The i386 fragment also works for x86_64. -. $srcdir/sysdeps/i386/configure +# 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 +} + + +# ac_fn_c_try_compile LINENO +# -------------------------- +# Try to compile conftest.$ac_ext, and return whether this succeeded. +ac_fn_c_try_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext + if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_compile + +# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES +# ------------------------------------------------------- +# Tests whether HEADER exists and can be compiled using the include files in +# INCLUDES, setting the cache variable VAR accordingly. +ac_fn_c_check_header_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +#include <$2> +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_header_compile +# This file is generated from configure.in by Autoconf. DO NOT EDIT! + # Local configure fragment for sysdeps/x86_64. + + +ac_fn_c_check_header_compile "$LINENO" "cpuid.h" "ac_cv_header_cpuid_h" "/* No default includes. */ +" +if test "x$ac_cv_header_cpuid_h" = xyes; then : + +else + as_fn_error $? "gcc must provide the <cpuid.h> header" "$LINENO" 5 +fi + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -g produces usable source locations for assembler-with-cpp" >&5 +$as_echo_n "checking if -g produces usable source locations for assembler-with-cpp... " >&6; } +if ${libc_cv_cpp_asm_debuginfo+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.S <<EOF +#include "confdefs.h" + +/* comment on + two lines */ + ${libc_cv_dot_text} + ${libc_cv_asm_global_directive} foo +foo: + /* Unfortunately this test only works for a real instruction, + not for any of the machine-independent pseudo-ops. + So we just have to assume everybody has a "nop". */ + nop + /* comment */ + nop + /* comment */ + nop +EOF +if { ac_try='${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&5' + { { eval echo "\"\$as_me\":${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; }; } && { + ac_pattern='conftest\.S' + { ac_try='readelf --debug-dump=line conftest.o | + grep $ac_pattern 1>&5' + { { eval echo "\"\$as_me\":${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_cpp_asm_debuginfo=yes +else + libc_cv_cpp_asm_debuginfo=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cpp_asm_debuginfo" >&5 +$as_echo "$libc_cv_cpp_asm_debuginfo" >&6; } +if test $libc_cv_cpp_asm_debuginfo = yes; then + $as_echo "#define HAVE_CPP_ASM_DEBUGINFO 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5 +$as_echo_n "checking for SSE4 support... " >&6; } +if ${libc_cv_cc_sse4+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -msse4 -xc /dev/null -S -o /dev/null' + { { 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_cc_sse4=yes +else + libc_cv_cc_sse4=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse4" >&5 +$as_echo "$libc_cv_cc_sse4" >&6; } +if test $libc_cv_cc_sse4 = yes; then + $as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX support" >&5 +$as_echo_n "checking for AVX support... " >&6; } +if ${libc_cv_cc_avx+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mavx -xc /dev/null -S -o /dev/null' + { { 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_cc_avx=yes +else + libc_cv_cc_avx=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx" >&5 +$as_echo "$libc_cv_cc_avx" >&6; } +if test $libc_cv_cc_avx = yes; then + $as_echo "#define HAVE_AVX_SUPPORT 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5 +$as_echo_n "checking for AVX encoding of SSE instructions... " >&6; } +if ${libc_cv_cc_sse2avx+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null' + { { 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_cc_sse2avx=yes +else + libc_cv_cc_sse2avx=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5 +$as_echo "$libc_cv_cc_sse2avx" >&6; } +if test $libc_cv_cc_sse2avx = yes; then + $as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5 +$as_echo_n "checking for FMA4 support... " >&6; } +if ${libc_cv_cc_fma4+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null' + { { 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_cc_fma4=yes +else + libc_cv_cc_fma4=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_fma4" >&5 +$as_echo "$libc_cv_cc_fma4" >&6; } +if test $libc_cv_cc_fma4 = yes; then + $as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mno-vzeroupper support" >&5 +$as_echo_n "checking for -mno-vzeroupper support... " >&6; } +if ${libc_cv_cc_novzeroupper+:} false; then : + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null' + { { 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_cc_novzeroupper=yes +else + libc_cv_cc_novzeroupper=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5 +$as_echo "$libc_cv_cc_novzeroupper" >&6; } + +# Check for support of thread-local storage handling in assembler and linker. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86-64 TLS support" >&5 +$as_echo_n "checking for x86-64 TLS support... " >&6; } +if ${libc_cv_x86_64_tls+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.s <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .quad 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 8 + .text +baz: leaq bar@TLSLD(%rip), %rdi + leaq bar@DTPOFF(%rax), %rcx + addq foo@GOTTPOFF(%rip), %rax + movq $bar@TPOFF, %rdx +EOF +if { ac_try='${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_x86_64_tls=yes +else + libc_cv_x86_64_tls=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_64_tls" >&5 +$as_echo "$libc_cv_x86_64_tls" >&6; } +if test $libc_cv_x86_64_tls = no; then + as_fn_error $? "the assembler must support TLS" "$LINENO" 5 +fi + +$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h + +# work around problem with autoconf and empty lines at the end of files diff --git a/sysdeps/x86_64/configure.in b/sysdeps/x86_64/configure.in new file mode 100644 index 0000000000..f913c7c980 --- /dev/null +++ b/sysdeps/x86_64/configure.in @@ -0,0 +1,122 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/x86_64. + +AC_CHECK_HEADER([cpuid.h], , + [AC_MSG_ERROR([gcc must provide the <cpuid.h> header])], + [/* No default includes. */]) + +AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp, + libc_cv_cpp_asm_debuginfo, [dnl +cat > conftest.S <<EOF +#include "confdefs.h" + +/* comment on + two lines */ + ${libc_cv_dot_text} + ${libc_cv_asm_global_directive} foo +foo: + /* Unfortunately this test only works for a real instruction, + not for any of the machine-independent pseudo-ops. + So we just have to assume everybody has a "nop". */ + nop + /* comment */ + nop + /* comment */ + nop +EOF +if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && { + ac_pattern='conftest\.S' + AC_TRY_COMMAND([readelf --debug-dump=line conftest.o | + grep $ac_pattern 1>&AS_MESSAGE_LOG_FD]) + }; then + libc_cv_cpp_asm_debuginfo=yes +else + libc_cv_cpp_asm_debuginfo=no +fi +rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo) +if test $libc_cv_cpp_asm_debuginfo = yes; then + AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO) +fi + +dnl Check if -msse4 works. +AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl +if AC_TRY_COMMAND([${CC-cc} -msse4 -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_sse4=yes +else + libc_cv_cc_sse4=no +fi]) +if test $libc_cv_cc_sse4 = yes; then + AC_DEFINE(HAVE_SSE4_SUPPORT) +fi + +dnl Check if -mavx works. +AC_CACHE_CHECK(for AVX support, libc_cv_cc_avx, [dnl +if AC_TRY_COMMAND([${CC-cc} -mavx -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_avx=yes +else + libc_cv_cc_avx=no +fi]) +if test $libc_cv_cc_avx = yes; then + AC_DEFINE(HAVE_AVX_SUPPORT) +fi + +dnl Check if -msse2avx works. +AC_CACHE_CHECK(for AVX encoding of SSE instructions, libc_cv_cc_sse2avx, [dnl +if AC_TRY_COMMAND([${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_sse2avx=yes +else + libc_cv_cc_sse2avx=no +fi]) +if test $libc_cv_cc_sse2avx = yes; then + AC_DEFINE(HAVE_SSE2AVX_SUPPORT) +fi + +dnl Check if -mfma4 works. +AC_CACHE_CHECK(for FMA4 support, libc_cv_cc_fma4, [dnl +if AC_TRY_COMMAND([${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_fma4=yes +else + libc_cv_cc_fma4=no +fi]) +if test $libc_cv_cc_fma4 = yes; then + AC_DEFINE(HAVE_FMA4_SUPPORT) +fi + +dnl Check if -mno-vzeroupper works. +AC_CACHE_CHECK(for -mno-vzeroupper support, libc_cv_cc_novzeroupper, [dnl +if AC_TRY_COMMAND([${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_novzeroupper=yes +else + libc_cv_cc_novzeroupper=no +fi]) + +# Check for support of thread-local storage handling in assembler and linker. +AC_CACHE_CHECK(for x86-64 TLS support, libc_cv_x86_64_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .quad 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 8 + .text +baz: leaq bar@TLSLD(%rip), %rdi + leaq bar@DTPOFF(%rax), %rcx + addq foo@GOTTPOFF(%rip), %rax + movq $bar@TPOFF, %rdx +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_x86_64_tls=yes +else + libc_cv_x86_64_tls=no +fi +rm -f conftest*]) +if test $libc_cv_x86_64_tls = no; then + AC_MSG_ERROR([the assembler must support TLS]) +fi + +dnl It is always possible to access static and hidden symbols in an +dnl position independent way. +AC_DEFINE(PI_STATIC_AND_HIDDEN) +# work around problem with autoconf and empty lines at the end of files diff --git a/sysdeps/x86_64/elf/configure b/sysdeps/x86_64/elf/configure deleted file mode 100644 index 7f2b313bc4..0000000000 --- a/sysdeps/x86_64/elf/configure +++ /dev/null @@ -1,125 +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/x86_64/elf. - -# Check for support of thread-local storage handling in assembler and linker. -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86-64 TLS support" >&5 -$as_echo_n "checking for x86-64 TLS support... " >&6; } -if ${libc_cv_x86_64_tls+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat > conftest.s <<\EOF - .section ".tdata", "awT", @progbits - .globl foo -foo: .quad 1 - .section ".tbss", "awT", @nobits - .globl bar -bar: .skip 8 - .text -baz: leaq bar@TLSLD(%rip), %rdi - leaq bar@DTPOFF(%rax), %rcx - addq foo@GOTTPOFF(%rip), %rax - movq $bar@TPOFF, %rdx -EOF -if { ac_try='${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_x86_64_tls=yes -else - libc_cv_x86_64_tls=no -fi -rm -f conftest* -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_64_tls" >&5 -$as_echo "$libc_cv_x86_64_tls" >&6; } -if test $libc_cv_x86_64_tls = no; then - as_fn_error $? "the assembler must support TLS" "$LINENO" 5 -fi - -$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h - -# work around problem with autoconf and empty lines at the end of files diff --git a/sysdeps/x86_64/elf/configure.in b/sysdeps/x86_64/elf/configure.in deleted file mode 100644 index c53328b4c9..0000000000 --- a/sysdeps/x86_64/elf/configure.in +++ /dev/null @@ -1,33 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/x86_64/elf. - -# Check for support of thread-local storage handling in assembler and linker. -AC_CACHE_CHECK(for x86-64 TLS support, libc_cv_x86_64_tls, [dnl -cat > conftest.s <<\EOF - .section ".tdata", "awT", @progbits - .globl foo -foo: .quad 1 - .section ".tbss", "awT", @nobits - .globl bar -bar: .skip 8 - .text -baz: leaq bar@TLSLD(%rip), %rdi - leaq bar@DTPOFF(%rax), %rcx - addq foo@GOTTPOFF(%rip), %rax - movq $bar@TPOFF, %rdx -EOF -dnl -if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_x86_64_tls=yes -else - libc_cv_x86_64_tls=no -fi -rm -f conftest*]) -if test $libc_cv_x86_64_tls = no; then - AC_MSG_ERROR([the assembler must support TLS]) -fi - -dnl It is always possible to access static and hidden symbols in an -dnl position independent way. -AC_DEFINE(PI_STATIC_AND_HIDDEN) -# work around problem with autoconf and empty lines at the end of files diff --git a/sysdeps/x86_64/elf/start.S b/sysdeps/x86_64/start.S index 5e01d21179..5e01d21179 100644 --- a/sysdeps/x86_64/elf/start.S +++ b/sysdeps/x86_64/start.S |