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authorRoland McGrath <roland@gnu.org>2006-02-22 02:09:08 +0000
committerRoland McGrath <roland@gnu.org>2006-02-22 02:09:08 +0000
commit7d9324612451215ac6402b2d9e73d29b33a0820b (patch)
tree84a2a1a964b7e0f5e06881257f70ad740f361aec /configure.in
parent7aaa17343dc759012322ac3e23b1aaad9afa81f7 (diff)
downloadglibc-7d9324612451215ac6402b2d9e73d29b33a0820b.tar.gz
* configure.in (libc_cv_gcc_dwarf2_unwind_info): Delete.
(HAVE_DWARF2_UNWIND_INFO{,_STATIC}): Remove AC_DEFINEs. * configure: Regenerate. * config.h.in (HAVE_DWARF2_UNWIND_INFO{,_STATIC}): Remove undefs. * elf/soinit.c: Don't include gccframe.h. (__EH_FRAME_BEGIN__): Define unconditionally. (__register_frame_info, __deregister_frame_info) (__register_frame_info_bases, __deregister_frame_info_bases) (__register_frame, __deregister_frame): Remove declarations. (__libc_global_ctors, __libc_fini): Don't call registry functions. * elf/sofini.c (__EH_FRAME_END__): Define unconditionally.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in65
1 files changed, 0 insertions, 65 deletions
diff --git a/configure.in b/configure.in
index 78715156dd..889fb55208 100644
--- a/configure.in
+++ b/configure.in
@@ -1726,71 +1726,6 @@ if test "$libc_cv_c_asmcr0_bug" != 'no'; then
fi
fi
-AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info,
-[cat > conftest.c <<EOF
-#line $LINENO "configure"
-static char *__EH_FRAME_BEGIN__;
-_start ()
-{
-#ifdef CHECK__register_frame
- __register_frame (__EH_FRAME_BEGIN__);
- __deregister_frame (__EH_FRAME_BEGIN__);
-#endif
-#ifdef CHECK__register_frame_info
- __register_frame_info (__EH_FRAME_BEGIN__);
- __deregister_frame_info (__EH_FRAME_BEGIN__);
-#endif
-}
-int __eh_pc;
-__throw () {}
-/* FIXME: this is fragile. */
-malloc () {}
-strcmp () {}
-strlen () {}
-memcpy () {}
-memset () {}
-free () {}
-abort () {}
-__bzero () {}
-dl_iterate_phdr () {}
-EOF
-libc_unwind_check="${CC-cc} $CFLAGS $CPPFLAGS -DCHECK__register_frame_info \
- $LDFLAGS \
- -nostdlib -nostartfiles -o conftest conftest.c \
- -lgcc"
-# Some platforms' specs put -lgcc first. The second one doesn't hurt.
-if AC_TRY_COMMAND([$libc_unwind_check >&AS_MESSAGE_LOG_FD]) ||
- AC_TRY_COMMAND([$libc_unwind_check -lgcc_eh -lgcc >&AS_MESSAGE_LOG_FD])
-then
- if $libc_unwind_check -v 2>&1 >/dev/null \
- | grep -- --eh-frame-hdr 2>&1 >/dev/null; then
- libc_cv_gcc_dwarf2_unwind_info=no_registry_needed
- else
- libc_cv_gcc_dwarf2_unwind_info=static
- fi
-else
- libc_cv_gcc_dwarf2_unwind_info=no
-fi
-if test $libc_cv_gcc_dwarf2_unwind_info = no; then
- if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -DCHECK__register_frame
- $LDFLAGS -nostdlib -nostartfiles
- -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then
- libc_cv_gcc_dwarf2_unwind_info=yes
- else
- libc_cv_gcc_dwarf2_unwind_info=no
- fi
-fi
-rm -f conftest*])
-case $libc_cv_gcc_dwarf2_unwind_info in
-yes)
- AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
- ;;
-static)
- AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
- AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC)
- ;;
-esac
-
dnl Check whether compiler understands __builtin_expect.
AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect,
[cat > conftest.c <<EOF