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* configure: Regenerated after aclocal.m4 change.

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* sysdeps/x86_64/sysdep.h [HAVE_ELF] (L): Define with .L##name form.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (L): Don't define it here.

	* sysdeps/generic/dl-lookupcfg.h [USE_TLS] (DL_LOOKUP_RETURNS_MAP):
	Define it, because _dl_sym presumes it (for any platform).

	* sysdeps/x86_64/dl-tls.h: New file.

	* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Add a cast.

	* sysdeps/x86_64/elf/configure.in: New file.
	* sysdeps/x86_64/elf/configure: New generated file.
This commit is contained in:
Roland McGrath 2002-09-29 10:38:40 +00:00
parent 3c25964fb0
commit 5bbfc1ea70
9 changed files with 269 additions and 109 deletions
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17
ChangeLog
View file

@ -1,3 +1,20 @@
2002-09-29 Roland McGrath <roland@redhat.com>
* configure: Regenerated after aclocal.m4 change.
* sysdeps/x86_64/sysdep.h [HAVE_ELF] (L): Define with .L##name form.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (L): Don't define it here.
* sysdeps/generic/dl-lookupcfg.h [USE_TLS] (DL_LOOKUP_RETURNS_MAP):
Define it, because _dl_sym presumes it (for any platform).
* sysdeps/x86_64/dl-tls.h: New file.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Add a cast.
* sysdeps/x86_64/elf/configure.in: New file.
* sysdeps/x86_64/elf/configure: New generated file.
2002-09-28 Roland McGrath <roland@redhat.com>
* elf/rtld.c (_dl_start): Fix conditional for declaring CNT.

227
configure vendored
View file

@ -1941,8 +1941,8 @@ AR=`$CC -print-prog-name=ar`
# ranlib has to be treated a bit differently since it might not exist at all.
RANLIB=`$CC -print-prog-name=ranlib`
if test $RANLIB = ranlib; then
ac_ranlib=`$CC -print-prog-name=ranlib`
if test "x$ac_ranlib" = xranlib; then
# This extra check has to happen since gcc simply echos the parameter in
# case it cannot find the value in its own directories.
# Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
@ -2012,12 +2012,14 @@ else
fi
fi
else
RANLIB=$ac_ranlib
fi
# Determine whether we are using GNU binutils.
echo $ac_n "checking whether $AS is GNU as""... $ac_c" 1>&6
echo "configure:2021: checking whether $AS is GNU as" >&5
echo "configure:2023: checking whether $AS is GNU as" >&5
if eval "test \"`echo '$''{'libc_cv_prog_as_gnu'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2036,7 +2038,7 @@ rm -f a.out
gnu_as=$libc_cv_prog_as_gnu
echo $ac_n "checking whether $LD is GNU ld""... $ac_c" 1>&6
echo "configure:2040: checking whether $LD is GNU ld" >&5
echo "configure:2042: checking whether $LD is GNU ld" >&5
if eval "test \"`echo '$''{'libc_cv_prog_ld_gnu'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2056,7 +2058,7 @@ gnu_ld=$libc_cv_prog_ld_gnu
# Extract the first word of "${ac_tool_prefix}mig", so it can be a program name with args.
set dummy ${ac_tool_prefix}mig; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2060: checking for $ac_word" >&5
echo "configure:2062: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MIG'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2088,7 +2090,7 @@ if test -n "$ac_tool_prefix"; then
# Extract the first word of "mig", so it can be a program name with args.
set dummy mig; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2092: checking for $ac_word" >&5
echo "configure:2094: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_MIG'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2148,7 +2150,7 @@ fi
# check if ranlib is necessary
echo $ac_n "checking whether ranlib is necessary""... $ac_c" 1>&6
echo "configure:2152: checking whether ranlib is necessary" >&5
echo "configure:2154: checking whether ranlib is necessary" >&5
if eval "test \"`echo '$''{'libc_cv_ranlib_necessary'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2158,7 +2160,7 @@ char b;
void c(void) {}
EOF
$CC $CFLAGS -c conftest.c
$AR cr conftest.a conftest.c
$AR cr conftest.a conftest.o
cp conftest.a conftest2.a
$RANLIB conftest.a
if cmp -s conftest.a conftest2.a; then
@ -2182,7 +2184,7 @@ fi
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
echo $ac_n "checking LD_LIBRARY_PATH variable""... $ac_c" 1>&6
echo "configure:2186: checking LD_LIBRARY_PATH variable" >&5
echo "configure:2188: checking LD_LIBRARY_PATH variable" >&5
case ${LD_LIBRARY_PATH} in
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
ld_library_path_setting="contains current directory"
@ -2200,7 +2202,7 @@ if test "$ld_library_path_setting" != "ok"; then
fi
echo $ac_n "checking whether GCC supports -static-libgcc""... $ac_c" 1>&6
echo "configure:2204: checking whether GCC supports -static-libgcc" >&5
echo "configure:2206: checking whether GCC supports -static-libgcc" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_static_libgcc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2217,7 +2219,7 @@ echo "$ac_t""$libc_cv_gcc_static_libgcc" 1>&6
# Extract the first word of "bash", so it can be a program name with args.
set dummy bash; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2221: checking for $ac_word" >&5
echo "configure:2223: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_BASH'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2263,7 +2265,7 @@ if test "$BASH" = no; then
# Extract the first word of "ksh", so it can be a program name with args.
set dummy ksh; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2267: checking for $ac_word" >&5
echo "configure:2269: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_KSH'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2313,7 +2315,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2317: checking for $ac_word" >&5
echo "configure:2319: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2345,7 +2347,7 @@ done
# Extract the first word of "perl", so it can be a program name with args.
set dummy perl; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2349: checking for $ac_word" >&5
echo "configure:2351: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2385,7 +2387,7 @@ fi
# Extract the first word of "install-info", so it can be a program name with args.
set dummy install-info; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2389: checking for $ac_word" >&5
echo "configure:2391: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_INSTALL_INFO'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2420,7 +2422,7 @@ fi
if test "$INSTALL_INFO" != "no"; then
echo $ac_n "checking for old Debian install-info""... $ac_c" 1>&6
echo "configure:2424: checking for old Debian install-info" >&5
echo "configure:2426: checking for old Debian install-info" >&5
if eval "test \"`echo '$''{'libc_cv_old_debian_install_info'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2455,7 +2457,7 @@ fi
# Extract the first word of "bison", so it can be a program name with args.
set dummy bison; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2459: checking for $ac_word" >&5
echo "configure:2461: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_BISON'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2490,7 +2492,7 @@ fi
echo $ac_n "checking for signed size_t type""... $ac_c" 1>&6
echo "configure:2494: checking for signed size_t type" >&5
echo "configure:2496: checking for signed size_t type" >&5
if eval "test \"`echo '$''{'libc_cv_signed_size_t'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2514,12 +2516,12 @@ EOF
fi
echo $ac_n "checking for libc-friendly stddef.h""... $ac_c" 1>&6
echo "configure:2518: checking for libc-friendly stddef.h" >&5
echo "configure:2520: checking for libc-friendly stddef.h" >&5
if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 2523 "configure"
#line 2525 "configure"
#include "confdefs.h"
#define __need_size_t
#define __need_wchar_t
@ -2534,7 +2536,7 @@ size_t size; wchar_t wchar;
if (&size == NULL || &wchar == NULL) abort ();
; return 0; }
EOF
if { (eval echo configure:2538: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:2540: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_friendly_stddef=yes
else
@ -2553,7 +2555,7 @@ override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
fi
echo $ac_n "checking whether we need to use -P to assemble .S files""... $ac_c" 1>&6
echo "configure:2557: checking whether we need to use -P to assemble .S files" >&5
echo "configure:2559: checking whether we need to use -P to assemble .S files" >&5
if eval "test \"`echo '$''{'libc_cv_need_minus_P'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2576,7 +2578,7 @@ asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
fi
echo $ac_n "checking whether .text pseudo-op must be used""... $ac_c" 1>&6
echo "configure:2580: checking whether .text pseudo-op must be used" >&5
echo "configure:2582: checking whether .text pseudo-op must be used" >&5
if eval "test \"`echo '$''{'libc_cv_dot_text'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2597,7 +2599,7 @@ else
fi
echo $ac_n "checking for assembler global-symbol directive""... $ac_c" 1>&6
echo "configure:2601: checking for assembler global-symbol directive" >&5
echo "configure:2603: checking for assembler global-symbol directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_global_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2627,7 +2629,7 @@ EOF
fi
echo $ac_n "checking for .set assembler directive""... $ac_c" 1>&6
echo "configure:2631: checking for .set assembler directive" >&5
echo "configure:2633: checking for .set assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_set_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2661,7 +2663,7 @@ EOF
fi
echo $ac_n "checking for assembler .type directive prefix""... $ac_c" 1>&6
echo "configure:2665: checking for assembler .type directive prefix" >&5
echo "configure:2667: checking for assembler .type directive prefix" >&5
if eval "test \"`echo '$''{'libc_cv_asm_type_prefix'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2702,7 +2704,7 @@ EOF
esac
echo $ac_n "checking for .symver assembler directive""... $ac_c" 1>&6
echo "configure:2706: checking for .symver assembler directive" >&5
echo "configure:2708: checking for .symver assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_symver_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2721,7 +2723,7 @@ fi
echo "$ac_t""$libc_cv_asm_symver_directive" 1>&6
echo $ac_n "checking for ld --version-script""... $ac_c" 1>&6
echo "configure:2725: checking for ld --version-script" >&5
echo "configure:2727: checking for ld --version-script" >&5
if eval "test \"`echo '$''{'libc_cv_ld_version_script_option'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2744,7 +2746,7 @@ EOF
if { ac_try='${CC-cc} $CFLAGS -shared -o conftest.so conftest.o
-nostartfiles -nostdlib
-Wl,--version-script,conftest.map
1>&5'; { (eval echo configure:2748: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
1>&5'; { (eval echo configure:2750: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_ld_version_script_option=yes
else
@ -2783,7 +2785,7 @@ if test $elf = yes && test $shared != no && test $VERSIONING = no; then
fi
if test $elf = yes; then
echo $ac_n "checking for .previous assembler directive""... $ac_c" 1>&6
echo "configure:2787: checking for .previous assembler directive" >&5
echo "configure:2789: checking for .previous assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_previous_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2791,7 +2793,7 @@ else
.section foo_section
.previous
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2795: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2797: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_previous_directive=yes
else
libc_cv_asm_previous_directive=no
@ -2807,7 +2809,7 @@ EOF
else
echo $ac_n "checking for .popsection assembler directive""... $ac_c" 1>&6
echo "configure:2811: checking for .popsection assembler directive" >&5
echo "configure:2813: checking for .popsection assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_popsection_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2815,7 +2817,7 @@ else
.pushsection foo_section
.popsection
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2819: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2821: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_popsection_directive=yes
else
libc_cv_asm_popsection_directive=no
@ -2832,7 +2834,7 @@ EOF
fi
fi
echo $ac_n "checking for .protected and .hidden assembler directive""... $ac_c" 1>&6
echo "configure:2836: checking for .protected and .hidden assembler directive" >&5
echo "configure:2838: checking for .protected and .hidden assembler directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_protected_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2842,7 +2844,7 @@ foo:
.hidden bar
bar:
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2846: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:2848: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_protected_directive=yes
else
libc_cv_asm_protected_directive=no
@ -2863,7 +2865,7 @@ EOF
if test $libc_cv_asm_protected_directive = yes; then
echo $ac_n "checking whether __attribute__((visibility())) is supported""... $ac_c" 1>&6
echo "configure:2867: checking whether __attribute__((visibility())) is supported" >&5
echo "configure:2869: checking whether __attribute__((visibility())) is supported" >&5
if eval "test \"`echo '$''{'libc_cv_visibility_attribute'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2894,7 +2896,7 @@ EOF
if test $libc_cv_visibility_attribute = yes; then
echo $ac_n "checking for broken __attribute__((visibility()))""... $ac_c" 1>&6
echo "configure:2898: checking for broken __attribute__((visibility()))" >&5
echo "configure:2900: checking for broken __attribute__((visibility()))" >&5
if eval "test \"`echo '$''{'libc_cv_broken_visibility_attribute'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2923,7 +2925,7 @@ EOF
fi
echo $ac_n "checking for broken __attribute__((alias()))""... $ac_c" 1>&6
echo "configure:2927: checking for broken __attribute__((alias()))" >&5
echo "configure:2929: checking for broken __attribute__((alias()))" >&5
if eval "test \"`echo '$''{'libc_cv_broken_alias_attribute'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2956,7 +2958,7 @@ EOF
if test $libc_cv_visibility_attribute = yes -a $gnu_ld = yes; then
echo $ac_n "checking whether to put _rtld_local into .sdata section""... $ac_c" 1>&6
echo "configure:2960: checking whether to put _rtld_local into .sdata section" >&5
echo "configure:2962: checking whether to put _rtld_local into .sdata section" >&5
if eval "test \"`echo '$''{'libc_cv_have_sdata_section'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2980,7 +2982,7 @@ EOF
fi
echo $ac_n "checking for .preinit_array/.init_array/.fini_array support""... $ac_c" 1>&6
echo "configure:2984: checking for .preinit_array/.init_array/.fini_array support" >&5
echo "configure:2986: checking for .preinit_array/.init_array/.fini_array support" >&5
if eval "test \"`echo '$''{'libc_cv_initfinit_array'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -2991,7 +2993,7 @@ int foo (void) { return 1; }
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
EOF
if { ac_try='${CC-cc} -o conftest conftest.c
-static -nostartfiles -nostdlib 1>&5'; { (eval echo configure:2995: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
-static -nostartfiles -nostdlib 1>&5'; { (eval echo configure:2997: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then
libc_cv_initfinit_array=yes
@ -3014,7 +3016,7 @@ EOF
fi
echo $ac_n "checking for -z nodelete option""... $ac_c" 1>&6
echo "configure:3018: checking for -z nodelete option" >&5
echo "configure:3020: checking for -z nodelete option" >&5
if eval "test \"`echo '$''{'libc_cv_z_nodelete'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3023,7 +3025,7 @@ int _start (void) { return 42; }
EOF
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
-nostartfiles -nostdlib
-Wl,--enable-new-dtags,-z,nodelete 1>&5'; { (eval echo configure:3027: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
-Wl,--enable-new-dtags,-z,nodelete 1>&5'; { (eval echo configure:3029: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
libc_cv_z_nodelete=yes
else
@ -3036,7 +3038,7 @@ echo "$ac_t""$libc_cv_z_nodelete" 1>&6
echo $ac_n "checking for -z nodlopen option""... $ac_c" 1>&6
echo "configure:3040: checking for -z nodlopen option" >&5
echo "configure:3042: checking for -z nodlopen option" >&5
if eval "test \"`echo '$''{'libc_cv_z_nodlopen'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3045,7 +3047,7 @@ int _start (void) { return 42; }
EOF
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
-nostartfiles -nostdlib
-Wl,--enable-new-dtags,-z,nodlopen 1>&5'; { (eval echo configure:3049: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
-Wl,--enable-new-dtags,-z,nodlopen 1>&5'; { (eval echo configure:3051: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
libc_cv_z_nodlopen=yes
else
@ -3058,7 +3060,7 @@ echo "$ac_t""$libc_cv_z_nodlopen" 1>&6
echo $ac_n "checking for -z initfirst option""... $ac_c" 1>&6
echo "configure:3062: checking for -z initfirst option" >&5
echo "configure:3064: checking for -z initfirst option" >&5
if eval "test \"`echo '$''{'libc_cv_z_initfirst'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3067,7 +3069,7 @@ int _start (void) { return 42; }
EOF
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
-nostartfiles -nostdlib
-Wl,--enable-new-dtags,-z,initfirst 1>&5'; { (eval echo configure:3071: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
-Wl,--enable-new-dtags,-z,initfirst 1>&5'; { (eval echo configure:3073: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
libc_cv_z_initfirst=yes
else
@ -3080,14 +3082,14 @@ echo "$ac_t""$libc_cv_z_initfirst" 1>&6
echo $ac_n "checking for -Bgroup option""... $ac_c" 1>&6
echo "configure:3084: checking for -Bgroup option" >&5
echo "configure:3086: checking for -Bgroup option" >&5
if eval "test \"`echo '$''{'libc_cv_Bgroup'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&5'; { (eval echo configure:3091: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&5'; { (eval echo configure:3093: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
libc_cv_Bgroup=yes
else
@ -3100,7 +3102,7 @@ echo "$ac_t""$libc_cv_Bgroup" 1>&6
echo $ac_n "checking for -z combreloc""... $ac_c" 1>&6
echo "configure:3104: checking for -z combreloc" >&5
echo "configure:3106: checking for -z combreloc" >&5
if eval "test \"`echo '$''{'libc_cv_z_combreloc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3111,7 +3113,7 @@ int foo (void) { return bar (mumble); }
EOF
if { ac_try='${CC-cc} -shared -o conftest.so conftest.c
-nostdlib -nostartfiles
-Wl,-z,combreloc 1>&5'; { (eval echo configure:3115: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
-Wl,-z,combreloc 1>&5'; { (eval echo configure:3117: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
then
if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then
libc_cv_z_combreloc=yes
@ -3136,12 +3138,12 @@ fi
if test $elf != yes; then
echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&6
echo "configure:3140: checking for .init and .fini sections" >&5
echo "configure:3142: checking for .init and .fini sections" >&5
if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3145 "configure"
#line 3147 "configure"
#include "confdefs.h"
int main() {
@ -3150,7 +3152,7 @@ asm (".section .init");
asm ("${libc_cv_dot_text}");
; return 0; }
EOF
if { (eval echo configure:3154: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3156: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_have_initfini=yes
else
@ -3173,7 +3175,7 @@ fi
if test $elf = yes -a $gnu_ld = yes; then
echo $ac_n "checking whether cc puts quotes around section names""... $ac_c" 1>&6
echo "configure:3177: checking whether cc puts quotes around section names" >&5
echo "configure:3179: checking whether cc puts quotes around section names" >&5
if eval "test \"`echo '$''{'libc_cv_have_section_quotes'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3210,19 +3212,19 @@ if test $elf = yes; then
else
if test $ac_cv_prog_cc_works = yes; then
echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
echo "configure:3214: checking for _ prefix on C symbol names" >&5
echo "configure:3216: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3219 "configure"
#line 3221 "configure"
#include "confdefs.h"
asm ("_glibc_foobar:");
int main() {
glibc_foobar ();
; return 0; }
EOF
if { (eval echo configure:3226: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:3228: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
libc_cv_asm_underscores=yes
else
@ -3237,17 +3239,17 @@ fi
echo "$ac_t""$libc_cv_asm_underscores" 1>&6
else
echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
echo "configure:3241: checking for _ prefix on C symbol names" >&5
echo "configure:3243: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3246 "configure"
#line 3248 "configure"
#include "confdefs.h"
void underscore_test(void) {
return; }
EOF
if { (eval echo configure:3251: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3253: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if grep _underscore_test conftest* >/dev/null; then
rm -f conftest*
libc_cv_asm_underscores=yes
@ -3279,7 +3281,7 @@ if test $elf = yes; then
fi
echo $ac_n "checking for assembler .weak directive""... $ac_c" 1>&6
echo "configure:3283: checking for assembler .weak directive" >&5
echo "configure:3285: checking for assembler .weak directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weak_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3302,7 +3304,7 @@ echo "$ac_t""$libc_cv_asm_weak_directive" 1>&6
if test $libc_cv_asm_weak_directive = no; then
echo $ac_n "checking for assembler .weakext directive""... $ac_c" 1>&6
echo "configure:3306: checking for assembler .weakext directive" >&5
echo "configure:3308: checking for assembler .weakext directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weakext_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3349,14 +3351,14 @@ EOF
;;
hppa*linux*)
echo $ac_n "checking for assembler line separator""... $ac_c" 1>&6
echo "configure:3353: checking for assembler line separator" >&5
echo "configure:3355: checking for assembler line separator" >&5
if eval "test \"`echo '$''{'libc_cv_asm_line_sep'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.s <<EOF
nop ; is_old_puffin
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:3360: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:3362: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_line_sep='!'
else
if test -z "$enable_hacker_mode"; then
@ -3378,7 +3380,7 @@ EOF
esac
echo $ac_n "checking for ld --no-whole-archive""... $ac_c" 1>&6
echo "configure:3382: checking for ld --no-whole-archive" >&5
echo "configure:3384: checking for ld --no-whole-archive" >&5
if eval "test \"`echo '$''{'libc_cv_ld_no_whole_archive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3389,7 +3391,7 @@ __throw () {}
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -Wl,--no-whole-archive
-o conftest conftest.c 1>&5'; { (eval echo configure:3393: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c 1>&5'; { (eval echo configure:3395: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_ld_no_whole_archive=yes
else
libc_cv_ld_no_whole_archive=no
@ -3403,7 +3405,7 @@ if test $libc_cv_ld_no_whole_archive = yes; then
fi
echo $ac_n "checking for gcc -fexceptions""... $ac_c" 1>&6
echo "configure:3407: checking for gcc -fexceptions" >&5
echo "configure:3409: checking for gcc -fexceptions" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_exceptions'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3414,7 +3416,7 @@ __throw () {}
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -fexceptions
-o conftest conftest.c 1>&5'; { (eval echo configure:3418: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c 1>&5'; { (eval echo configure:3420: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_exceptions=yes
else
libc_cv_gcc_exceptions=no
@ -3429,14 +3431,14 @@ fi
if test "$base_machine" = alpha ; then
echo $ac_n "checking for function ..ng prefix""... $ac_c" 1>&6
echo "configure:3433: checking for function ..ng prefix" >&5
echo "configure:3435: checking for function ..ng prefix" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_alpha_ng_prefix'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<\EOF
foo () { }
EOF
if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:3440: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
if { ac_try='${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null'; { (eval echo configure:3442: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_gcc_alpha_ng_prefix=yes
else
@ -3463,19 +3465,19 @@ if test "$host_cpu" = powerpc ; then
# Check for a bug present in at least versions 2.8.x of GCC
# and versions 1.0.x of EGCS.
echo $ac_n "checking whether clobbering cr0 causes problems""... $ac_c" 1>&6
echo "configure:3467: checking whether clobbering cr0 causes problems" >&5
echo "configure:3469: checking whether clobbering cr0 causes problems" >&5
if eval "test \"`echo '$''{'libc_cv_c_asmcr0_bug'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 3472 "configure"
#line 3474 "configure"
#include "confdefs.h"
int tester(int x) { asm ("" : : : "cc"); return x & 123; }
int main() {
; return 0; }
EOF
if { (eval echo configure:3479: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:3481: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_c_asmcr0_bug='no'
else
@ -3497,12 +3499,12 @@ fi
fi
echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6
echo "configure:3501: checking for DWARF2 unwind info support" >&5
echo "configure:3503: checking for DWARF2 unwind info support" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
#line 3506 "configure"
#line 3508 "configure"
static char *__EH_FRAME_BEGIN__;
_start ()
{
@ -3530,14 +3532,14 @@ dl_iterate_phdr () {}
EOF
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
-nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3534: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3536: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_dwarf2_unwind_info=static
else
libc_cv_gcc_dwarf2_unwind_info=no
fi
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
-nostdlib -nostartfiles
-o conftest conftest.c -lgcc -lgcc_eh >&5'; { (eval echo configure:3541: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c -lgcc -lgcc_eh >&5'; { (eval echo configure:3543: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
-o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
| grep -q -- --eh-frame-hdr; then
@ -3551,7 +3553,7 @@ fi
if test $libc_cv_gcc_dwarf2_unwind_info = no; then
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame
-nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3555: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3557: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_dwarf2_unwind_info=yes
else
libc_cv_gcc_dwarf2_unwind_info=no
@ -3581,12 +3583,12 @@ EOF
esac
echo $ac_n "checking for __builtin_expect""... $ac_c" 1>&6
echo "configure:3585: checking for __builtin_expect" >&5
echo "configure:3587: checking for __builtin_expect" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_builtin_expect'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
#line 3590 "configure"
#line 3592 "configure"
int foo (int a)
{
a = __builtin_expect (a, 10);
@ -3594,7 +3596,7 @@ int foo (int a)
}
EOF
if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3598: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3600: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_builtin_expect=yes
else
libc_cv_gcc_builtin_expect=no
@ -3611,7 +3613,7 @@ EOF
fi
echo $ac_n "checking for __builtin_memset""... $ac_c" 1>&6
echo "configure:3615: checking for __builtin_memset" >&5
echo "configure:3617: checking for __builtin_memset" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_builtin_memset'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3621,7 +3623,7 @@ void zero (void *x)
__builtin_memset (x, 0, 1000);
}
EOF
if { ac_try='${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null'; { (eval echo configure:3625: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
if { ac_try='${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null'; { (eval echo configure:3627: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_gcc_builtin_memset=no
else
@ -3639,12 +3641,12 @@ EOF
fi
echo $ac_n "checking for local label subtraction""... $ac_c" 1>&6
echo "configure:3643: checking for local label subtraction" >&5
echo "configure:3645: checking for local label subtraction" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_subtract_local_labels'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
#line 3648 "configure"
#line 3650 "configure"
int foo (int a)
{
static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 };
@ -3657,7 +3659,7 @@ int foo (int a)
}
EOF
if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3661: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
-o conftest conftest.c -lgcc >&5'; { (eval echo configure:3663: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_subtract_local_labels=yes
else
libc_cv_gcc_subtract_local_labels=no
@ -3674,14 +3676,14 @@ EOF
fi
echo $ac_n "checking for __thread""... $ac_c" 1>&6
echo "configure:3678: checking for __thread" >&5
echo "configure:3680: checking for __thread" >&5
if eval "test \"`echo '$''{'libc_cv_gcc___thread'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
cat > conftest.c <<\EOF
__thread int a = 42;
EOF
if { ac_try='${CC-cc} $CFLAGS -c conftest.c >&5'; { (eval echo configure:3685: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if { ac_try='${CC-cc} $CFLAGS -c conftest.c >&5'; { (eval echo configure:3687: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc___thread=yes
else
libc_cv_gcc___thread=no
@ -3695,11 +3697,36 @@ if test "$libc_cv_gcc___thread" = yes; then
#define HAVE___THREAD 1
EOF
echo $ac_n "checking whether __attribute__((tls_model())) is supported ""... $ac_c" 1>&6
echo "configure:3703: checking whether __attribute__((tls_model())) is supported " >&5
if eval "test \"`echo '$''{'libc_cv_gcc_attribute_tls_model'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<\EOF
extern __thread int a __attribute__ ((tls_model ("initial-exec")));
int foo (void) { return a; }
EOF
if { ac_try='${CC-cc} $CFLAGS -c conftest.c >&5'; { (eval echo configure:3711: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_attribute_tls_model=yes
else
libc_cv_gcc_attribute_tls_model=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_gcc_attribute_tls_model" 1>&6
if test "$libc_cv_gcc_attribute_tls_model" = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_ATTRIBUTE_TLS_MODEL 1
EOF
fi
fi
echo $ac_n "checking for libgd""... $ac_c" 1>&6
echo "configure:3703: checking for libgd" >&5
echo "configure:3730: checking for libgd" >&5
if test "$with_gd" != "no"; then
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $libgd_include"
@ -3708,14 +3735,14 @@ if test "$with_gd" != "no"; then
old_LIBS="$LIBS"
LIBS="$LIBS -lgd -lpng -lz -lm"
cat > conftest.$ac_ext <<EOF
#line 3712 "configure"
#line 3739 "configure"
#include "confdefs.h"
#include <gd.h>
int main() {
gdImagePng (0, 0)
; return 0; }
EOF
if { (eval echo configure:3719: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:3746: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
LIBGD=yes
else
@ -3735,7 +3762,7 @@ echo "$ac_t""$LIBGD" 1>&6
echo $ac_n "checking size of long double""... $ac_c" 1>&6
echo "configure:3739: checking size of long double" >&5
echo "configure:3766: checking size of long double" >&5
if eval "test \"`echo '$''{'ac_cv_sizeof_long_double'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3743,7 +3770,7 @@ else
ac_cv_sizeof_long_double=0
else
cat > conftest.$ac_ext <<EOF
#line 3747 "configure"
#line 3774 "configure"
#include "confdefs.h"
#include <stdio.h>
int main()
@ -3754,7 +3781,7 @@ int main()
return(0);
}
EOF
if { (eval echo configure:3758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
if { (eval echo configure:3785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
ac_cv_sizeof_long_double=`cat conftestval`
else
@ -3832,7 +3859,7 @@ if test "$uname" = "sysdeps/generic"; then
fi
echo $ac_n "checking OS release for uname""... $ac_c" 1>&6
echo "configure:3836: checking OS release for uname" >&5
echo "configure:3863: checking OS release for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3854,7 +3881,7 @@ echo "$ac_t""$libc_cv_uname_release" 1>&6
uname_release="$libc_cv_uname_release"
echo $ac_n "checking OS version for uname""... $ac_c" 1>&6
echo "configure:3858: checking OS version for uname" >&5
echo "configure:3885: checking OS version for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -3883,7 +3910,7 @@ EOF
# Test for old glibc 2.0.x headers so that they can be removed properly
# Search only in includedir.
echo $ac_n "checking for old glibc 2.0.x headers""... $ac_c" 1>&6
echo "configure:3887: checking for old glibc 2.0.x headers" >&5
echo "configure:3914: checking for old glibc 2.0.x headers" >&5
if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
then
old_glibc_headers=yes
@ -3944,7 +3971,7 @@ if test $shared = default; then
fi
echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6
echo "configure:3948: checking whether -fPIC is default" >&5
echo "configure:3975: checking whether -fPIC is default" >&5
if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else

13
sysdeps/generic/dl-lookupcfg.h
View file

@ -1,5 +1,5 @@
/* Configuration of lookup functions.
Copyright (C) 2000 Free Software Foundation, Inc.
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
@ -18,5 +18,12 @@
02111-1307 USA. */
/* Some platforms need more information from the symbol lookup function
than just the address. But this is not generally the case. */
#undef DL_LOOKUP_RETURNS_MAP
than just the address. But this is not generally the case.
However, because of how _dl_sym and _dl_tls_symaddr are written, every
platform needs it when we support TLS. */
#ifdef USE_TLS
# define DL_LOOKUP_RETURNS_MAP
#else
# undef DL_LOOKUP_RETURNS_MAP
#endif

4
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View file

@ -41,10 +41,6 @@
# define __NR_pwrite __NR_pwrite64
#endif
/* ELF-like local names start with `.L'. */
#undef L
#define L(name) .L##name
#ifdef __ASSEMBLER__
/* Linux uses a negative return value to indicate syscall errors,

3
sysdeps/x86_64/dl-machine.h
View file

@ -378,7 +378,8 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
#endif
#if defined USE_TLS && !defined RTLD_BOOTSTRAP
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf64_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf64_Addr value = (sym == NULL ? 0
: (Elf64_Addr) sym_map->l_addr + sym->st_value);
#else
Elf64_Addr value = RESOLVE (&sym, version, r_type);

29
sysdeps/x86_64/dl-tls.h Normal file
View file

@ -0,0 +1,29 @@
/* Thread-local storage handling in the ELF dynamic linker. x86-64 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Type used for the representation of TLS information in the GOT. */
typedef struct
{
unsigned long int ti_module;
unsigned long int ti_offset;
} tls_index;
extern void *__tls_get_addr (tls_index *ti);

43
sysdeps/x86_64/elf/configure vendored Executable file
View file

@ -0,0 +1,43 @@
# Local configure fragment for sysdeps/x86_64/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and linker.
echo $ac_n "checking for x86-64 TLS support""... $ac_c" 1>&6
echo "configure:7: checking for x86-64 TLS support" >&5
if eval "test \"`echo '$''{'libc_cv_x86_64_tls'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&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 $CFLAGS conftest.s 1>&5'; { (eval echo configure:24: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_x86_64_tls=yes
else
libc_cv_x86_64_tls=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_x86_64_tls" 1>&6
if test $libc_cv_x86_64_tls = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_TLS_SUPPORT 1
EOF
fi
fi
cat >> confdefs.h <<\EOF
#define PI_STATIC_AND_HIDDEN 1
EOF

35
sysdeps/x86_64/elf/configure.in Normal file
View file

@ -0,0 +1,35 @@
sinclude(./aclocal.m4)dnl Autoconf lossage
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/x86_64/elf.
if test "$usetls" != no; then
# 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>&AC_FD_CC); 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 = yes; then
AC_DEFINE(HAVE_TLS_SUPPORT)
fi
fi
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)

7
sysdeps/x86_64/sysdep.h
View file

@ -94,7 +94,12 @@ lose: \
/* Local label name for asm code. */
#ifndef L
#define L(name) name
# ifdef HAVE_ELF
/* ELF-like local names start with `.L'. */
# define L(name) .L##name
# else
# define L(name) name
# endif
#endif
#endif /* __ASSEMBLER__ */