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Igor Tsimbalist 14e335edc8 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
2018-02-19 17:25:49 +01:00
..
config Update copyright years. 2018-01-03 11:03:58 +01:00
testsuite Update copyright years. 2018-01-03 11:03:58 +01:00
.gitignore
acinclude.m4
aclocal.m4
auto-config.h.in
cas_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
ChangeLog CET shouldn't be enabled in 32-bit run-time libraries by defualt 2018-02-19 17:25:49 +01:00
configure CET shouldn't be enabled in 32-bit run-time libraries by defualt 2018-02-19 17:25:49 +01:00
configure.ac Update copyright years. 2018-01-03 11:03:58 +01:00
configure.tgt Update copyright years. 2018-01-03 11:03:58 +01:00
exch_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
fadd_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
fand_n.c
fence.c Update copyright years. 2018-01-03 11:03:58 +01:00
fenv.c Update copyright years. 2018-01-03 11:03:58 +01:00
fior_n.c
flag.c Update copyright years. 2018-01-03 11:03:58 +01:00
fnand_n.c
fop_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
fsub_n.c
fxor_n.c
gcas.c Update copyright years. 2018-01-03 11:03:58 +01:00
gexch.c Update copyright years. 2018-01-03 11:03:58 +01:00
glfree.c Update copyright years. 2018-01-03 11:03:58 +01:00
gload.c Update copyright years. 2018-01-03 11:03:58 +01:00
gstore.c Update copyright years. 2018-01-03 11:03:58 +01:00
host-config.h Update copyright years. 2018-01-03 11:03:58 +01:00
init.c
libatomic_i.h Update copyright years. 2018-01-03 11:03:58 +01:00
libatomic.map
load_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
Makefile.am Update copyright years. 2018-01-03 11:03:58 +01:00
Makefile.in
store_n.c Update copyright years. 2018-01-03 11:03:58 +01:00
tas_n.c Update copyright years. 2018-01-03 11:03:58 +01:00