From 7d9324612451215ac6402b2d9e73d29b33a0820b Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Wed, 22 Feb 2006 02:09:08 +0000
Subject: * 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.
---
 configure.in | 65 ------------------------------------------------------------
 1 file changed, 65 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 7871515..889fb55 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
-- 
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