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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 /libgcc
parent0ec52417fd9b3bef5227cdc9a18ff4f0247b0ea4 (diff)
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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 'libgcc')
-rw-r--r--libgcc/ChangeLog5
-rwxr-xr-xlibgcc/configure3
2 files changed, 8 insertions, 0 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index b0a432f..7343c77 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/95147
+ * configure: Regenerated.
+
2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
* configure: Regenerated.
diff --git a/libgcc/configure b/libgcc/configure
index a5d5ab8..5d0c79b 100755
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -4913,6 +4913,8 @@ 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. */
@@ -4936,6 +4938,7 @@ 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.