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authorUlrich Drepper <drepper@redhat.com>2009-07-23 17:15:56 -0700
committerUlrich Drepper <drepper@redhat.com>2009-07-23 17:15:56 -0700
commit01b597da400ef799a43f61fa31d305eb9db81670 (patch)
tree4cc95acb87447fb2396b32afe47683add97a7192
parentf1adf1f490b33a61eccad1682fbd9b1b66d404bd (diff)
Check for .cfi_{personality,lsda} on x86-64.
We need this support in NPTL now to avoid the hand-coded tables.
-rw-r--r--nptl/ChangeLog2
-rw-r--r--nptl/sysdeps/x86_64/configure36
-rw-r--r--nptl/sysdeps/x86_64/configure.in23
3 files changed, 61 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 68fe3779c3..cb9ec53cd1 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,5 +1,7 @@
2009-07-23 Ulrich Drepper <drepper@redhat.com>
+ * sysdeps/x86_64/configure.in: New file.
+
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Fix error
path when not using absolute timeout futex.
diff --git a/nptl/sysdeps/x86_64/configure b/nptl/sysdeps/x86_64/configure
new file mode 100644
index 0000000000..b959168843
--- /dev/null
+++ b/nptl/sysdeps/x86_64/configure
@@ -0,0 +1,36 @@
+# This file is generated from configure.in by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/i386.
+
+{ echo "$as_me:$LINENO: checking for .cfi_personality and .cfi_lsda pseudo-ops" >&5
+echo $ECHO_N "checking for .cfi_personality and .cfi_lsda pseudo-ops... $ECHO_C" >&6; }
+if test "${libc_cv_asm_cfi_personality+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat > conftest.s <<EOF
+${libc_cv_dot_text}
+foo:
+ .cfi_startproc
+ .cfi_personality 0, foo
+ .cfi_lsda 0, foo
+ .cfi_endproc
+EOF
+ if { ac_try='${CC-cc} $ASFLAGS -c conftest.s 1>&5'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ libc_cv_asm_cfi_personality=yes
+ else
+ libc_cv_asm_cfi_personality=no
+ fi
+ rm -f conftest*
+
+fi
+{ echo "$as_me:$LINENO: result: $libc_cv_asm_cfi_personality" >&5
+echo "${ECHO_T}$libc_cv_asm_cfi_personality" >&6; }
+if test x"$libc_cv_asm_cfi_personality" != xyes; then
+ { { echo "$as_me:$LINENO: error: assembler too old, .cfi_personality support missing" >&5
+echo "$as_me: error: assembler too old, .cfi_personality support missing" >&2;}
+ { (exit 1); exit 1; }; }
+fi
diff --git a/nptl/sysdeps/x86_64/configure.in b/nptl/sysdeps/x86_64/configure.in
new file mode 100644
index 0000000000..0ba0cc3726
--- /dev/null
+++ b/nptl/sysdeps/x86_64/configure.in
@@ -0,0 +1,23 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/i386.
+
+AC_CACHE_CHECK([for .cfi_personality and .cfi_lsda pseudo-ops],
+ libc_cv_asm_cfi_personality, [dnl
+ cat > conftest.s <<EOF
+${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