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| author | Igor Tsimbalist <igor.v.tsimbalist@intel.com> | 2017-11-17 22:22:09 +0100 |
|---|---|---|
| committer | Igor Tsimbalist <itsimbal@gcc.gnu.org> | 2017-11-17 22:22:09 +0100 |
| commit | efe33ced3335418cfec484126fec001a56d958a7 (patch) | |
| tree | ef70030968b644d4f92e01f7b881f41a8c860f2f /libgomp/configure | |
| parent | efc643e90d0e75d3e003644404d4e29f84f274e6 (diff) | |
| download | gcc-efe33ced3335418cfec484126fec001a56d958a7.zip gcc-efe33ced3335418cfec484126fec001a56d958a7.tar.gz gcc-efe33ced3335418cfec484126fec001a56d958a7.tar.bz2 | |
Enable building libgomp with Intel CET
libgomp/
* configure.ac: Set CET_FLAGS, update XCFLAGS and FCFLAGS.
* acinclude.m4: Add cet.m4.
* configure: Regenerate.
* Makefile.in: Likewise.
* testsuite/Makefile.in: Likewise.
From-SVN: r254894
Diffstat (limited to 'libgomp/configure')
| -rwxr-xr-x | libgomp/configure | 77 |
1 files changed, 75 insertions, 2 deletions
diff --git a/libgomp/configure b/libgomp/configure index b7e9f40..e7842b5 100755 --- a/libgomp/configure +++ b/libgomp/configure @@ -799,6 +799,7 @@ with_hsa_runtime_lib enable_linux_futex enable_tls enable_symvers +enable_cet with_gcc_major_version_only ' ac_precious_vars='build_alias @@ -1451,6 +1452,8 @@ Optional Features: --enable-tls Use thread-local storage [default=yes] --enable-symvers=STYLE enables symbol versioning of the shared library [default=yes] + --enable-cet enable Intel CET in target libraries + [default=default] Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] @@ -11155,7 +11158,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11158 "configure" +#line 11161 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11261,7 +11264,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11264 "configure" +#line 11267 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -16616,6 +16619,76 @@ $as_echo "#define HAVE_SYNC_BUILTINS 1" >>confdefs.h XCFLAGS="$XCFLAGS$XPCFLAGS" +# Add CET specific flags if CET is enabled + # Check whether --enable-cet was given. +if test "${enable_cet+set}" = set; then : + enableval=$enable_cet; + case "$enableval" in + yes|no|default) ;; + *) as_fn_error "Unknown argument to enable/disable cet" "$LINENO" 5 ;; + esac + +else + enable_cet=default +fi + + +case "$host" in + i[34567]86-*-linux* | x86_64-*-linux*) + case "$enable_cet" in + default) + # Check if assembler supports CET. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +asm ("setssbsy"); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + enable_cet=yes +else + enable_cet=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + yes) + # Check if assembler supports CET. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +asm ("setssbsy"); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + as_fn_error "assembler with CET support is required for --enable-cet" "$LINENO" 5 +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + esac + ;; + *) + enable_cet=no + ;; +esac +if test x$enable_cet = xyes; then + CET_FLAGS="-fcf-protection -mcet" +fi + +XCFLAGS="$XCFLAGS $CET_FLAGS" +FCFLAGS="$FCFLAGS $CET_FLAGS" + |