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authorUlrich Drepper <drepper@redhat.com>2001-08-26 09:17:23 +0000
committerUlrich Drepper <drepper@redhat.com>2001-08-26 09:17:23 +0000
commita711b01d34ca5de9857ca5d19235812674fccee6 (patch)
tree1073e9cf9b096ff80eee7263a6b885cc161f2e43 /configure
parent7c69dc8bc888762333f5ccf1c8c7fb5883ffc6ed (diff)
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Update.
2001-08-26 Ulrich Drepper <drepper@redhat.com> * config.h.in: Add HAVE_Z_COMBRELOC. * configure.in: Add test for -z combreloc. * sysdeps/i386/dl-machine.h (elf_machine_rel): Minor cleanups and optimizations. Use HAVE_Z_COMBRELOC to avoid generaton of R_386_RELATIVE handling for ld.so startup.
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure120
1 files changed, 71 insertions, 49 deletions
diff --git a/configure b/configure
index 450657face..a900b481d4 100755
--- a/configure
+++ b/configure
@@ -970,7 +970,7 @@ gnu* | linux* | sysv4* | solaris2* | irix6*)
aix*)
# These systems are always xcoff
xcoff=yes
- elf=no
+ elf=no
;;
esac
@@ -2282,7 +2282,7 @@ else
fi
-for ac_prog in mawk gawk nawk awk
+for ac_prog in gawk mawk nawk awk
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
@@ -2874,16 +2874,38 @@ fi
echo "$ac_t""$libc_cv_Bgroup" 1>&6
+
+ echo $ac_n "checking for -z combreloc""... $ac_c" 1>&6
+echo "configure:2880: checking for -z combreloc" >&5
+if eval "test \"`echo '$''{'libc_cv_z_combreloc'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.c <<EOF
+int foo (void) { return 0; }
+EOF
+ if { ac_try='${CC-cc} -shared -o conftest.so conftest.c -Wl,-z,combreloc 1>&5'; { (eval echo configure:2887: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+ then
+ if readelf -S conftest.so | fgrep .rel.dyn > /dev/null; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_Z_COMBRELOC 1
+EOF
+
+ fi
+ fi
+ rm -f conftest*
+fi
+
+echo "$ac_t""$libc_cv_z_combreloc" 1>&6
fi
if test $elf != yes; then
echo $ac_n "checking for .init and .fini sections""... $ac_c" 1>&6
-echo "configure:2882: checking for .init and .fini sections" >&5
+echo "configure:2904: checking for .init and .fini sections" >&5
if eval "test \"`echo '$''{'libc_cv_have_initfini'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2887 "configure"
+#line 2909 "configure"
#include "confdefs.h"
int main() {
@@ -2892,7 +2914,7 @@ asm (".section .init");
asm ("${libc_cv_dot_text}");
; return 0; }
EOF
-if { (eval echo configure:2896: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2918: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_have_initfini=yes
else
@@ -2915,7 +2937,7 @@ fi
if test $elf = yes -a $gnu_ld = yes; then
echo $ac_n "checking whether cc puts quotes around section names""... $ac_c" 1>&6
-echo "configure:2919: checking whether cc puts quotes around section names" >&5
+echo "configure:2941: checking whether cc puts quotes around section names" >&5
if eval "test \"`echo '$''{'libc_cv_have_section_quotes'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2952,19 +2974,19 @@ 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""... $ac_c" 1>&6
-echo "configure:2956: checking for _ prefix on C symbol names" >&5
+echo "configure:2978: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2961 "configure"
+#line 2983 "configure"
#include "confdefs.h"
asm ("_glibc_foobar:");
int main() {
glibc_foobar ();
; return 0; }
EOF
-if { (eval echo configure:2968: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2990: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
libc_cv_asm_underscores=yes
else
@@ -2979,17 +3001,17 @@ fi
echo "$ac_t""$libc_cv_asm_underscores" 1>&6
else
echo $ac_n "checking for _ prefix on C symbol names""... $ac_c" 1>&6
-echo "configure:2983: checking for _ prefix on C symbol names" >&5
+echo "configure:3005: checking for _ prefix on C symbol names" >&5
if eval "test \"`echo '$''{'libc_cv_asm_underscores'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 2988 "configure"
+#line 3010 "configure"
#include "confdefs.h"
void underscore_test(void) {
return; }
EOF
-if { (eval echo configure:2993: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3015: \"$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
@@ -3021,7 +3043,7 @@ if test $elf = yes; then
fi
echo $ac_n "checking for assembler .weak directive""... $ac_c" 1>&6
-echo "configure:3025: checking for assembler .weak directive" >&5
+echo "configure:3047: checking for assembler .weak directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weak_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3044,7 +3066,7 @@ echo "$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""... $ac_c" 1>&6
-echo "configure:3048: checking for assembler .weakext directive" >&5
+echo "configure:3070: checking for assembler .weakext directive" >&5
if eval "test \"`echo '$''{'libc_cv_asm_weakext_directive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3091,14 +3113,14 @@ EOF
;;
hppa*linux*)
echo $ac_n "checking for assembler line separator""... $ac_c" 1>&6
-echo "configure:3095: checking for assembler line separator" >&5
+echo "configure:3117: checking for assembler line separator" >&5
if eval "test \"`echo '$''{'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 $CFLAGS conftest.s 1>&5'; { (eval echo configure:3102: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:3124: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_asm_line_sep='!'
else
if test -z "$enable_hacker_mode"; then
@@ -3120,7 +3142,7 @@ EOF
esac
echo $ac_n "checking for ld --no-whole-archive""... $ac_c" 1>&6
-echo "configure:3124: checking for ld --no-whole-archive" >&5
+echo "configure:3146: checking for ld --no-whole-archive" >&5
if eval "test \"`echo '$''{'libc_cv_ld_no_whole_archive'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3131,7 +3153,7 @@ __throw () {}
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -Wl,--no-whole-archive
- -o conftest conftest.c 1>&5'; { (eval echo configure:3135: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c 1>&5'; { (eval echo configure:3157: \"$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
@@ -3145,7 +3167,7 @@ if test $libc_cv_ld_no_whole_archive = yes; then
fi
echo $ac_n "checking for gcc -fexceptions""... $ac_c" 1>&6
-echo "configure:3149: checking for gcc -fexceptions" >&5
+echo "configure:3171: checking for gcc -fexceptions" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_exceptions'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3156,7 +3178,7 @@ __throw () {}
EOF
if { ac_try='${CC-cc} $CFLAGS
-nostdlib -nostartfiles -fexceptions
- -o conftest conftest.c 1>&5'; { (eval echo configure:3160: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c 1>&5'; { (eval echo configure:3182: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_exceptions=yes
else
libc_cv_gcc_exceptions=no
@@ -3171,14 +3193,14 @@ fi
if test "$base_machine" = alpha ; then
echo $ac_n "checking for function ..ng prefix""... $ac_c" 1>&6
-echo "configure:3175: checking for function ..ng prefix" >&5
+echo "configure:3197: checking for function ..ng prefix" >&5
if eval "test \"`echo '$''{'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:3182: \"$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:3204: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; };
then
libc_cv_gcc_alpha_ng_prefix=yes
else
@@ -3205,19 +3227,19 @@ if test "$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""... $ac_c" 1>&6
-echo "configure:3209: checking whether clobbering cr0 causes problems" >&5
+echo "configure:3231: checking whether clobbering cr0 causes problems" >&5
if eval "test \"`echo '$''{'libc_cv_c_asmcr0_bug'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
-#line 3214 "configure"
+#line 3236 "configure"
#include "confdefs.h"
int tester(int x) { asm ("" : : : "cc"); return x & 123; }
int main() {
; return 0; }
EOF
-if { (eval echo configure:3221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3243: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
libc_cv_c_asmcr0_bug='no'
else
@@ -3239,12 +3261,12 @@ fi
fi
echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6
-echo "configure:3243: checking for DWARF2 unwind info support" >&5
+echo "configure:3265: checking for DWARF2 unwind info support" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
-#line 3248 "configure"
+#line 3270 "configure"
static char __EH_FRAME_BEGIN__;
_start ()
{
@@ -3271,7 +3293,7 @@ __bzero () {}
EOF
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
-nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3275: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3297: \"$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
@@ -3279,7 +3301,7 @@ fi
if test $libc_cv_gcc_dwarf2_unwind_info = no; then
if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame
-nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3283: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3305: \"$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
@@ -3309,12 +3331,12 @@ EOF
esac
echo $ac_n "checking for __builtin_expect""... $ac_c" 1>&6
-echo "configure:3313: checking for __builtin_expect" >&5
+echo "configure:3335: checking for __builtin_expect" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_builtin_expect'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
-#line 3318 "configure"
+#line 3340 "configure"
int foo (int a)
{
a = __builtin_expect (a, 10);
@@ -3322,7 +3344,7 @@ int foo (int a)
}
EOF
if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3326: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3348: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_gcc_builtin_expect=yes
else
libc_cv_gcc_builtin_expect=no
@@ -3339,12 +3361,12 @@ EOF
fi
echo $ac_n "checking for local label subtraction""... $ac_c" 1>&6
-echo "configure:3343: checking for local label subtraction" >&5
+echo "configure:3365: checking for local label subtraction" >&5
if eval "test \"`echo '$''{'libc_cv_gcc_subtract_local_labels'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
-#line 3348 "configure"
+#line 3370 "configure"
int foo (int a)
{
static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 };
@@ -3357,7 +3379,7 @@ int foo (int a)
}
EOF
if { ac_try='${CC-cc} $CFLAGS -nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3361: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+ -o conftest conftest.c -lgcc >&5'; { (eval echo configure:3383: \"$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
@@ -3374,7 +3396,7 @@ EOF
fi
echo $ac_n "checking for libgd""... $ac_c" 1>&6
-echo "configure:3378: checking for libgd" >&5
+echo "configure:3400: checking for libgd" >&5
if test "$with_gd" != "no"; then
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $libgd_include"
@@ -3383,14 +3405,14 @@ if test "$with_gd" != "no"; then
old_LIBS="$LIBS"
LIBS="$LIBS -lgd -lpng -lz -lm"
cat > conftest.$ac_ext <<EOF
-#line 3387 "configure"
+#line 3409 "configure"
#include "confdefs.h"
#include <gd.h>
int main() {
gdImagePng (0, 0)
; return 0; }
EOF
-if { (eval echo configure:3394: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3416: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
LIBGD=yes
else
@@ -3410,7 +3432,7 @@ echo "$ac_t""$LIBGD" 1>&6
echo $ac_n "checking size of long double""... $ac_c" 1>&6
-echo "configure:3414: checking size of long double" >&5
+echo "configure:3436: checking size of long double" >&5
if eval "test \"`echo '$''{'ac_cv_sizeof_long_double'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3418,18 +3440,18 @@ else
ac_cv_sizeof_long_double=0
else
cat > conftest.$ac_ext <<EOF
-#line 3422 "configure"
+#line 3444 "configure"
#include "confdefs.h"
#include <stdio.h>
-main()
+int main()
{
FILE *f=fopen("conftestval", "w");
- if (!f) exit(1);
+ if (!f) return(1);
fprintf(f, "%d\n", sizeof(long double));
- exit(0);
+ return(0);
}
EOF
-if { (eval echo configure:3433: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3455: \"$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
@@ -3498,7 +3520,7 @@ if test "$uname" = "sysdeps/generic"; then
fi
echo $ac_n "checking OS release for uname""... $ac_c" 1>&6
-echo "configure:3502: checking OS release for uname" >&5
+echo "configure:3524: checking OS release for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3520,7 +3542,7 @@ echo "$ac_t""$libc_cv_uname_release" 1>&6
uname_release="$libc_cv_uname_release"
echo $ac_n "checking OS version for uname""... $ac_c" 1>&6
-echo "configure:3524: checking OS version for uname" >&5
+echo "configure:3546: checking OS version for uname" >&5
if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -3542,7 +3564,7 @@ else
fi
echo $ac_n "checking stdio selection""... $ac_c" 1>&6
-echo "configure:3546: checking stdio selection" >&5
+echo "configure:3568: checking stdio selection" >&5
case $stdio in
libio) cat >> confdefs.h <<\EOF
@@ -3556,7 +3578,7 @@ echo "$ac_t""$stdio" 1>&6
# 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""... $ac_c" 1>&6
-echo "configure:3560: checking for old glibc 2.0.x headers" >&5
+echo "configure:3582: checking for old glibc 2.0.x headers" >&5
if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
then
old_glibc_headers=yes
@@ -3617,7 +3639,7 @@ if test $shared = default; then
fi
echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6
-echo "configure:3621: checking whether -fPIC is default" >&5
+echo "configure:3643: checking whether -fPIC is default" >&5
if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else