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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-07-15 06:16:01 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-07-30 05:36:24 -0700 |
| commit | 4712bde3cabed644884a52386404765fca3b0ac2 (patch) | |
| tree | 6a119dbfd7885c36e123657a74433210701654f5 /libiberty | |
| parent | 9e67b4356efe4291fdb170fb116092f4ed9d2f05 (diff) | |
| download | gcc-4712bde3cabed644884a52386404765fca3b0ac2.zip gcc-4712bde3cabed644884a52386404765fca3b0ac2.tar.gz gcc-4712bde3cabed644884a52386404765fca3b0ac2.tar.bz2 | |
Require CET support only for the final GCC build
With --enable-cet, require CET support only for the final GCC build.
Don't enable CET without CET support for non-bootstrap build, in stage1
nor for build support.
config/
PR bootstrap/96202
* cet.m4 (GCC_CET_HOST_FLAGS): Don't enable CET without CET
support in stage1 nor for build support.
gcc/
PR bootstrap/96202
* configure: Regenerated.
libbacktrace/
PR bootstrap/96202
* configure: Regenerated.
libcc1/
PR bootstrap/96202
* configure: Regenerated.
libcpp/
PR bootstrap/96202
* configure: Regenerated.
libdecnumber/
PR bootstrap/96202
* configure: Regenerated.
libiberty/
PR bootstrap/96202
* configure: Regenerated.
lto-plugin/
PR bootstrap/96202
* configure: Regenerated.
Diffstat (limited to 'libiberty')
| -rwxr-xr-x | libiberty/configure | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/libiberty/configure b/libiberty/configure index 1f8e23f..ff93c9e 100755 --- a/libiberty/configure +++ b/libiberty/configure @@ -5291,7 +5291,7 @@ case "$host" in case "$enable_cet" in auto) # Check if target supports multi-byte NOPs - # and if assembler supports CET insn. + # and if compiler and assembler support CET. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ @@ -5317,7 +5317,7 @@ fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ;; yes) - # Check if assembler supports CET. + # Check if compiler and assembler support CET. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ @@ -5330,11 +5330,24 @@ asm ("setssbsy"); } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : - + support_cet=yes else - as_fn_error $? "assembler with CET support is required for --enable-cet" "$LINENO" 5 + support_cet=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + if test $support_cet = "no"; then + if test x$enable_bootstrap != xno \ + && test -z "${with_build_subdir}" \ + && (test ! -f ../stage_current \ + || test `cat ../stage_current` != "stage1"); then + # Require CET support only for the final GCC build. + as_fn_error $? "compiler and assembler with CET support are required for --enable-cet" "$LINENO" 5 + else + # Don't enable CET without CET support for non-bootstrap + # build, in stage1 nor for build support. + enable_cet=no + fi + fi ;; esac CFLAGS="$cet_save_CFLAGS" |