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authorH.J. Lu <hjl.tools@gmail.com>2020-05-15 09:06:50 -0700
committerH.J. Lu <hjl.tools@gmail.com>2020-05-15 09:07:17 -0700
commit4c1a5d8b71e29b71e0bc1004480c12c5fc427cb7 (patch)
tree00192b598877094aa647955fecc5997ced114e06 /libobjc/configure
parent0ec52417fd9b3bef5227cdc9a18ff4f0247b0ea4 (diff)
downloadgcc-4c1a5d8b71e29b71e0bc1004480c12c5fc427cb7.tar.gz
x86: Also check if -fcf-protection works
When defaulting CET run-time support to auto, check if -fcf-protection works. Even if the stage1 GCC doesn't support -fcf-protection, since the final GCC does, CET run-time support will be enabled by default if binutils support CET. config/ PR bootstrap/95147 * cet.m4 (GCC_CET_FLAGS): Also check if -fcf-protection works when defaulting to auto. libatomic/ PR bootstrap/95147 * configure: Regenerated. libbacktrace/ PR bootstrap/95147 * configure: Regenerated. libgcc/ PR bootstrap/95147 * configure: Regenerated. libgfortran/ PR bootstrap/95147 * configure: Regenerated. libgomp/ PR bootstrap/95147 * configure: Regenerated. libitm/ PR bootstrap/95147 * configure: Regenerated. libobjc/ PR bootstrap/95147 * configure: Regenerated. libphobos/ PR bootstrap/95147 * configure: Regenerated. libquadmath/ PR bootstrap/95147 * configure: Regenerated. libsanitizer/ PR bootstrap/95147 * configure: Regenerated. libssp/ PR bootstrap/95147 * configure: Regenerated. libstdc++-v3/ PR bootstrap/95147 * configure: Regenerated. libvtv/ PR bootstrap/95147 * configure: Regenerated. zlib/ PR bootstrap/95147 * configure: Regenerated.
Diffstat (limited to 'libobjc/configure')
-rwxr-xr-xlibobjc/configure7
1 files changed, 5 insertions, 2 deletions
diff --git a/libobjc/configure b/libobjc/configure
index 018c9db76e8..6975a727d5e 100755
--- a/libobjc/configure
+++ b/libobjc/configure
@@ -3466,6 +3466,8 @@ case "$host" in
auto)
# Check if target supports multi-byte NOPs
# and if assembler supports CET insn.
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fcf-protection"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -3489,6 +3491,7 @@ else
enable_cet=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$save_CFLAGS"
;;
yes)
# Check if assembler supports CET.
@@ -10775,7 +10778,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 10778 "configure"
+#line 10781 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -10881,7 +10884,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 10884 "configure"
+#line 10887 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H