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authorAndreas Jaeger <aj@suse.de>2003-05-21 09:25:53 +0000
committerAndreas Jaeger <aj@suse.de>2003-05-21 09:25:53 +0000
commit5018956927ff82b308a8885dcc23dfcddb3ad177 (patch)
treeac1c69dbe5bec98193689e64c4ab9a5fb5ccdfea /configure.in
parent479aa8ecb2e64cb2bd70be3c258d42541d916291 (diff)
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* sysdeps/generic/sysdep.h (cfi_offset, cfi_startproc,
cfi_endproc, cfi_def_cfa, cfi_def_ccfa_register, 
cfi_def_cfa_offset, cfi_adjust_cfa_offset, cfi_offset): Define.
	* sysdeps/x86_64/sysdep.h (CALL_MCOUNT): Add cfi directives.
	(ENTRY): Likewise.
	(END): Likewise.

	* configure.in: Test for asm cfi directives.

	* config.h.in: Add HAVE_ASM_CFI_DIRECTIVES.
2003-05-21  Andreas Jaeger  <aj@suse.de>

	* sysdeps/generic/sysdep.h (cfi_offset, cfi_startproc,
	cfi_endproc, cfi_def_cfa, cfi_def_ccfa_register,
	cfi_def_cfa_offset, cfi_adjust_cfa_offset, cfi_offset): Define.

	* sysdeps/x86_64/sysdep.h (CALL_MCOUNT): Add cfi directives.
	(ENTRY): Likewise.
	(END): Likewise.

	* configure.in: Test for asm cfi directives.

	* config.h.in: Add HAVE_ASM_CFI_DIRECTIVES.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in18
1 files changed, 18 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index f0511ac5f9..c415f37de7 100644
--- a/configure.in
+++ b/configure.in
@@ -1502,6 +1502,24 @@ EOF
   ;;
 esac
 
+AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl
+cat > conftest.s <<EOF
+        .text
+        .type   func,@function
+func:
+        .cfi_startproc
+        .cfi_endproc
+EOF
+if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then
+  libc_cv_asm_cfi_directives=yes
+else
+  libc_cv_asm_cfi_directives=no
+fi
+rm -f conftest*])
+if test $libc_cv_asm_cfi_directives = yes; then
+  AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES)
+fi  
+
 AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp,
 	       libc_cv_cpp_asm_debuginfo, [dnl
 cat > conftest.S <<EOF