diff options
| author | Igor Tsimbalist <igor.v.tsimbalist@intel.com> | 2018-02-19 17:25:49 +0100 |
|---|---|---|
| committer | Igor Tsimbalist <itsimbal@gcc.gnu.org> | 2018-02-19 17:25:49 +0100 |
| commit | 14e335edc8c5c2cd18779e4e242a3d81037b8b43 (patch) | |
| tree | 5439816d0ec4a7a72c403e59851b0b78e2d23c88 /gcc | |
| parent | 65e3761d451229338a22226e154cb7d0bed5fcd1 (diff) | |
| download | gcc-14e335edc8c5c2cd18779e4e242a3d81037b8b43.zip gcc-14e335edc8c5c2cd18779e4e242a3d81037b8b43.tar.gz gcc-14e335edc8c5c2cd18779e4e242a3d81037b8b43.tar.bz2 | |
CET shouldn't be enabled in 32-bit run-time libraries by defualt
ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and
newer x86 processors, starting Pentium Pro. They are UD on older
32-bit processors. Detect this at configure time and adjust the
default value for enable_cet. GCC will enable CET in 32-bit run-time
libraries in any case if --enable-cet is used to configure GCC.
PR target/84148
* config/cet.m4: Check if target support multi-byte NOPS (SSE).
* libatomic/configure: Regenerate.
* libbacktrace/configure: Likewise.
* libgcc/configure: Likewise.
* libgfortran/configure: Likewise.
* libgomp/configure: Likewise.
* libitm/configure: Likewise.
* libmpx/configure: Likewise.
* libobjc/configure: Likewise.
* libquadmath/configure: Likewise.
* libsanitizer/configure: Likewise.
* libssp/configure: Likewise.
* libstdc++-v3/configure: Likewise.
* libvtv/configure: Likewise.
From-SVN: r257809
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions