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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-03-18 07:54:15 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-03-18 08:02:46 -0700 |
| commit | 538c15fc2a29ff142f2ec71d253d4027946ece09 (patch) | |
| tree | f2001e5ebfe80d2d2ac6a98eebb0e879f473cba3 /libiberty | |
| parent | 835f2fae11e41956523df3839cd50471b708e97d (diff) | |
| download | binutils-gdb-538c15fc2a29ff142f2ec71d253d4027946ece09.tar.gz | |
GCC_CET_HOST_FLAGS: Check if host supports multi-byte NOPs
Check if host supports multi-byte NOPs before enabling CET on host.
config/
PR binutils/27397
* cet.m4 (GCC_CET_HOST_FLAGS): Check if host supports multi-byte
NOPs.
libiberty/
PR binutils/27397
* configure: Regenerated.
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/ChangeLog | 5 | ||||
| -rwxr-xr-x | libiberty/configure | 29 |
2 files changed, 34 insertions, 0 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 8e5f5dc4bfa..70d7209bf0a 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,8 @@ +2021-03-18 H.J. Lu <hongjiu.lu@intel.com> + + PR binutils/27397 + * configure: Regenerated. + 2021-01-11 H.J. Lu <hongjiu.lu@intel.com> PR ld/27173 diff --git a/libiberty/configure b/libiberty/configure index 160b8c9e8b1..29a690d44fc 100755 --- a/libiberty/configure +++ b/libiberty/configure @@ -5539,6 +5539,34 @@ else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ +int +main () +{ + asm ("endbr32"); + return 0; +} + +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + have_multi_byte_nop=yes +else + have_multi_byte_nop=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + have_cet=no + if test x$have_multi_byte_nop = xyes; then + if test "$cross_compiling" = yes; then : + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run test program while cross compiling +See \`config.log' for more details" "$LINENO" 5; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + static void foo (void) { @@ -5575,6 +5603,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi + fi if test x$enable_cet = xno -a x$have_cet = xyes; then as_fn_error $? "Intel CET must be enabled on Intel CET enabled host" "$LINENO" 5 fi |