From 01b597da400ef799a43f61fa31d305eb9db81670 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 23 Jul 2009 17:15:56 -0700
Subject: Check for .cfi_{personality,lsda} on x86-64.

We need this support in NPTL now to avoid the hand-coded tables.
---
 nptl/sysdeps/x86_64/configure.in | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 nptl/sysdeps/x86_64/configure.in

(limited to 'nptl/sysdeps/x86_64/configure.in')

diff --git a/nptl/sysdeps/x86_64/configure.in b/nptl/sysdeps/x86_64/configure.in
new file mode 100644
index 0000000000..0ba0cc3726
--- /dev/null
+++ b/nptl/sysdeps/x86_64/configure.in
@@ -0,0 +1,23 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/i386.
+
+AC_CACHE_CHECK([for .cfi_personality and .cfi_lsda pseudo-ops],
+	       libc_cv_asm_cfi_personality, [dnl
+  cat > conftest.s <<EOF
+${libc_cv_dot_text}
+foo:
+	.cfi_startproc
+	.cfi_personality 0, foo
+	.cfi_lsda 0, foo
+	.cfi_endproc
+EOF
+  if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then
+    libc_cv_asm_cfi_personality=yes
+  else
+    libc_cv_asm_cfi_personality=no
+  fi
+  rm -f conftest*
+])
+if test x"$libc_cv_asm_cfi_personality" != xyes; then
+  AC_MSG_ERROR([assembler too old, .cfi_personality support missing])
+fi
-- 
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