CbC/CbC_gcc: libbacktrace/configure comparison

comparison libbacktrace/configure @ 131:84e7813d76e9

gcc-8.2

author	mir3636
date	Thu, 25 Oct 2018 07:37:49 +0900
parents	04ced10e8804
children	1830386684a0

comparison

equal deleted inserted replaced

-:04ced10e8804
+:84e7813d76e9
 with_pic
 enable_fast_install
 with_gnu_ld
 enable_libtool_lock
 enable_largefile
+enable_cet
 with_system_libunwind
 enable_host_shared
 '
 ac_precious_vars='build_alias
 host_alias
 --enable-static[=PKGS]  build static libraries [default=yes]
 --enable-fast-install[=PKGS]
 optimize for fast installation [default=yes]
 --disable-libtool-lock  avoid locking (might break parallel builds)
 --disable-largefile     omit support for large files
+--enable-cet            enable Intel CET in target libraries [default=no]
 --enable-host-shared    build host code as shared libraries
 Optional Packages:
 --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
 --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
 lt_cv_dlopen_self=cross
 else
 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
 lt_status=$lt_dlunknown
 cat > conftest.$ac_ext <<_LT_EOF
-#line 11149 "configure"
+#line 11151 "configure"
 #include "confdefs.h"
 #if HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
 lt_cv_dlopen_self_static=cross
 else
 lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
 lt_status=$lt_dlunknown
 cat > conftest.$ac_ext <<_LT_EOF
-#line 11255 "configure"
+#line 11257 "configure"
 #include "confdefs.h"
 #if HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_c_random_seed_string" >&5
 $as_echo "$libbacktrace_cv_c_random_seed_string" >&6; }
 if test "$libbacktrace_cv_c_random_seed_string" = "yes"; then
 EXTRA_FLAGS="$EXTRA_FLAGS -frandom-seed=\$@"
 fi
+fi
+if test -n "${with_target_subdir}"; then
+# Add CET specific flags is Intel CET is enabled.
+# Check whether --enable-cet was given.
+if test "${enable_cet+set}" = set; then :
+enableval=$enable_cet;
+case "$enableval" in
+yes|no|auto) ;;
+*) as_fn_error "Unknown argument to enable/disable cet" "$LINENO" 5 ;;
+esac
+else
+enable_cet=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5
+$as_echo_n "checking for CET support... " >&6; }
+case "$host" in
+i[34567]86-*-linux* | x86_64-*-linux*)
+case "$enable_cet" in
+auto)
+	# Check if target supports multi-byte NOPs
+	# and if assembler supports CET insn.
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int
+main ()
+{
+#if !defined(__SSE2__)
+#error target does not support multi-byte NOPs
+#else
+asm ("setssbsy");
+#endif
+;
+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 -mshstk"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+EXTRA_FLAGS="$EXTRA_FLAGS $CET_FLAGS"
 fi
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_compress" >&5
 $as_echo "$ac_cv_lib_z_compress" >&6; }
 if test "x$ac_cv_lib_z_compress" = x""yes; then :
-cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBZ 1
-_ACEOF
-LIBS="-lz $LIBS"
-fi
-if test $ac_cv_lib_z_compress = "yes"; then
 $as_echo "#define HAVE_ZLIB 1" >>confdefs.h
 fi
 if test "$ac_cv_lib_z_compress" = yes; then
 HAVE_ZLIB_TRUE=
 HAVE_ZLIB_FALSE='#'
 else
 HAVE_ZLIB_TRUE='#'

Mercurial > hg > CbC > CbC_gcc

comparison libbacktrace/configure @ 131:84e7813d76e9