gold: Skip some incremental tests

Skip incremental_test_2, incremental_test_3, incremental_test_4,
incremental_test_5, incremental_copy_test, incremental_common_test_1
and incremental_comdat_test_1 when -fcf-protection is used to compile
gold since gold doesn't properly support -fcf-protection on Intel CET
enabled OS.

Also skip incremental_copy_test and incremental_comdat_test_1 for GCC 9
or later since they failed with GCC 9 or later.

	PR gold/23539
	* configure.ac: Check for GCC 9 or later and for -fcf-protection.
	* configure: Regenerated.
	* testsuite/Makefile.am (check_PROGRAMS): Skip incremental_test_2,
	incremental_test_3, incremental_test_4, incremental_test_5,
	incremental_copy_test, incremental_common_test_1 and
	incremental_comdat_test_1 for -fcf-protection.  Also Skip
	incremental_copy_test and incremental_comdat_test_1 for GCC 9 or
	later.
	* testsuite/Makefile.in: Regenerated.

1 files changed, 74 insertions, 0 deletions

diff --git a/gold/configure b/gold/configure
index 199a739..e264a65 100755
--- a/gold/configure
+++ b/gold/configure
@@ -665,6 +665,10 @@ STATIC_TLS_TRUE
 TLS_FALSE
 TLS_TRUE
 MERGE_CONSTANTS_FLAG
+CFLAGS_CF_PROTECTION_FALSE
+CFLAGS_CF_PROTECTION_TRUE
+GCC9_FALSE
+GCC9_TRUE
 MCMODEL_MEDIUM_FALSE
 MCMODEL_MEDIUM_TRUE
 FN_PTRS_IN_SO_WITHOUT_PIC_FALSE
@@ -7491,6 +7495,68 @@ else
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc >= 9" >&5
+$as_echo_n "checking for gcc >= 9... " >&6; }
+if ${gold_cv_prog_gcc9+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if !defined __GNUC__ || __GNUC__ < 9
+error
+#endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gold_cv_prog_gcc9=yes
+else
+  gold_cv_prog_gcc9=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_cv_prog_gcc9" >&5
+$as_echo "$gold_cv_prog_gcc9" >&6; }
+ if test "$gold_cv_prog_gcc9" = "yes"; then
+  GCC9_TRUE=
+  GCC9_FALSE='#'
+else
+  GCC9_TRUE='#'
+  GCC9_FALSE=
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fcf-protection" >&5
+$as_echo_n "checking for -fcf-protection... " >&6; }
+if ${gold_cv_cflags_cf_protection+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if !defined __x86_64__ || !defined __CET__
+error
+#endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gold_cv_cflags_cf_protection=yes
+else
+  gold_cv_cflags_cf_protection=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_cv_cflags_cf_protection" >&5
+$as_echo "$gold_cv_cflags_cf_protection" >&6; }
+ if test "$gold_cv_cflags_cf_protection" = "yes"; then
+  CFLAGS_CF_PROTECTION_TRUE=
+  CFLAGS_CF_PROTECTION_FALSE='#'
+else
+  CFLAGS_CF_PROTECTION_TRUE='#'
+  CFLAGS_CF_PROTECTION_FALSE=
+fi
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fmerge-constants" >&5
 $as_echo_n "checking whether $CC supports -fmerge-constants... " >&6; }
 if ${gold_cv_merge_constants+:} false; then :
@@ -10444,6 +10510,14 @@ if test -z "${MCMODEL_MEDIUM_TRUE}" && test -z "${MCMODEL_MEDIUM_FALSE}"; then
   as_fn_error $? "conditional \"MCMODEL_MEDIUM\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${GCC9_TRUE}" && test -z "${GCC9_FALSE}"; then
+  as_fn_error $? "conditional \"GCC9\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CFLAGS_CF_PROTECTION_TRUE}" && test -z "${CFLAGS_CF_PROTECTION_FALSE}"; then
+  as_fn_error $? "conditional \"CFLAGS_CF_PROTECTION\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${TLS_TRUE}" && test -z "${TLS_FALSE}"; then
   as_fn_error $? "conditional \"TLS\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5