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author | H.J. Lu <hjl.tools@gmail.com> | 2021-03-22 13:23:21 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2021-05-03 05:01:23 -0700 |
commit | 3f570621352970945db657455e0570208ea2d70e (patch) | |
tree | 090f4242816e089bc91039b07c856bc78e47ecd2 /lto-plugin | |
parent | fd7eb4bc94cafa745eba75c64fa483a1689a5aad (diff) | |
download | gcc-3f570621352970945db657455e0570208ea2d70e.zip gcc-3f570621352970945db657455e0570208ea2d70e.tar.gz gcc-3f570621352970945db657455e0570208ea2d70e.tar.bz2 |
GCC_CET_HOST_FLAGS: Check if host supports multi-byte NOPs
Check if host supports multi-byte NOPs before enabling CET on host.
gcc/
PR bootstrap/99703
* configure: Regenerated.
libbacktrace/
PR bootstrap/99703
* configure: Regenerated.
libcc1/
PR bootstrap/99703
* configure: Regenerated.
libcpp/
PR bootstrap/99703
* configure: Regenerated.
libdecnumber/
PR bootstrap/99703
* configure: Regenerated.
lto-plugin/
PR bootstrap/99703
* configure: Regenerated.
Diffstat (limited to 'lto-plugin')
-rwxr-xr-x | lto-plugin/configure | 63 |
1 files changed, 47 insertions, 16 deletions
diff --git a/lto-plugin/configure b/lto-plugin/configure index baa84ad..26aad9d 100755 --- a/lto-plugin/configure +++ b/lto-plugin/configure @@ -5791,6 +5791,34 @@ 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.$ac_ext +/* end confdefs.h. */ + static void foo (void) { @@ -5827,6 +5855,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$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 @@ -8429,23 +8458,25 @@ _LT_EOF fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 $as_echo "$lt_cv_ld_force_load" >&6; } - case $host_os in - rhapsody* | darwin1.[012]) + # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to + # build without first building modern cctools / linker. + case $host_cpu-$host_os in + *-rhapsody* | *-darwin1.[012]) _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; - darwin1.*) + *-darwin1.*) _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; - darwin*) # darwin 5.x on - # if running on 10.5 or later, the deployment target defaults - # to the OS version, if on x86, and 10.4, the deployment - # target defaults to 10.4. Don't you love it? - case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in - 10.0,*86*-darwin8*|10.0,*-darwin[91]*) - _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; + *-darwin*) + # darwin 5.x (macOS 10.1) onwards we only need to adjust when the + # deployment target is forced to an earlier version. + case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in + UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*) + ;; 10.[012][,.]*) - _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; - 10.*) - _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;; - esac + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' + ;; + *) + ;; + esac ;; esac if test "$lt_cv_apple_cc_single_mod" = "yes"; then @@ -11950,7 +11981,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11963 "configure" +#line 11984 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -12056,7 +12087,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 12069 "configure" +#line 12090 "configure" #include "confdefs.h" #if HAVE_DLFCN_H |