+2020-04-25 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/94739
+ * cet.m4 (GCC_CET_HOST_FLAGS): New.
+
2020-04-22 Jakub Jelinek <jakub@redhat.com>
PR libfortran/94694
AC_MSG_RESULT([no])
fi
])
+
+dnl
+dnl GCC_CET_HOST_FLAGS
+dnl (SHELL-CODE_HANDLER)
+dnl
+AC_DEFUN([GCC_CET_HOST_FLAGS],[dnl
+GCC_ENABLE(cet, auto, ,[enable Intel CET in host libraries],
+ permit yes|no|auto)
+AC_MSG_CHECKING([for CET support])
+
+case "$host" in
+ i[[34567]]86-*-linux* | x86_64-*-linux*)
+ may_have_cet=yes
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fcf-protection"
+ case "$enable_cet" in
+ auto)
+ # Check if target supports multi-byte NOPs
+ # and if assembler supports CET insn.
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [],
+ [
+#if !defined(__SSE2__)
+#error target does not support multi-byte NOPs
+#else
+asm ("setssbsy");
+#endif
+ ])],
+ [enable_cet=yes],
+ [enable_cet=no])
+ ;;
+ yes)
+ # Check if assembler supports CET.
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [],
+ [asm ("setssbsy");])],
+ [],
+ [AC_MSG_ERROR([assembler with CET support is required for --enable-cet])])
+ ;;
+ esac
+ CFLAGS="$save_CFLAGS"
+ ;;
+ *)
+ may_have_cet=no
+ enable_cet=no
+ ;;
+esac
+
+if test x$may_have_cet = xyes; then
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk"
+ AC_TRY_RUN([
+static void
+foo (void)
+{
+}
+
+static void
+__attribute__ ((noinline, noclone))
+xxx (void (*f) (void))
+{
+ f ();
+}
+
+static void
+__attribute__ ((noinline, noclone))
+bar (void)
+{
+ xxx (foo);
+}
+
+int
+main ()
+{
+ bar ();
+ return 0;
+}
+ ],
+ [have_cet=no],
+ [have_cet=yes])
+ LDFLAGS="$save_LDFLAGS"
+ if test x$enable_cet = xno -a x$have_cet = xyes; then
+ AC_MSG_ERROR([Intel CET must be enabled on Intel CET enabled host])
+ fi
+fi
+if test x$enable_cet = xyes; then
+ $1="-fcf-protection"
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+])
+2020-04-25 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/94739
+ * Makefile.in (COMPILE.c): Add @CET_HOST_FLAGS@.
+ (configure_deps): Add $(srcdir)/../config/cet.m4 and
+ $(srcdir)/../config/enable.m4.
+ * aclocal.m4: Include ../config/cet.m4 and ../config/enable.m4.
+ * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
+ AC_SUBST(CET_HOST_FLAGS).
+ * configure: Regenerated.
+
2020-03-05 Egeyar Bagcioglu <egeyar.bagcioglu@oracle.com>
* simple-object.c (handle_lto_debug_sections): Name
INCDIR=$(srcdir)/$(MULTISRCTOP)../include
COMPILE.c = $(CC) -c @DEFS@ $(CFLAGS) $(CPPFLAGS) -I. -I$(INCDIR) \
- $(HDEFINES) @ac_libiberty_warn_cflags@ -D_GNU_SOURCE
+ $(HDEFINES) @ac_libiberty_warn_cflags@ -D_GNU_SOURCE \
+ @CET_HOST_FLAGS@
# Just to make sure we don't use a built-in rule with VPATH
.c.$(objext):
AUTOCONF = autoconf
configure_deps = $(srcdir)/aclocal.m4 \
$(srcdir)/../config/acx.m4 \
+ $(srcdir)/../config/cet.m4 \
+ $(srcdir)/../config/enable.m4 \
$(srcdir)/../config/no-executables.m4 \
$(srcdir)/../config/override.m4 \
$(srcdir)/../config/picflag.m4 \
sinclude(../config/acx.m4)
+sinclude(../config/cet.m4)
+sinclude(../config/enable.m4)
sinclude(../config/no-executables.m4)
sinclude(../config/override.m4)
sinclude(../config/picflag.m4)
target_header_dir
CHECK
LIBOBJS
+CET_HOST_FLAGS
NOASANFLAG
PICFLAG
INSTALL_DATA
enable_multilib
enable_install_libiberty
enable_largefile
+enable_cet
'
ac_precious_vars='build_alias
host_alias
--enable-multilib build many library versions (default)
--enable-install-libiberty Install headers and library for end users
--disable-largefile omit support for large files
+ --enable-cet enable Intel CET in host libraries [default=auto]
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
esac
+ # Check whether --enable-cet was given.
+if test "${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=auto
+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*)
+ may_have_cet=yes
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fcf-protection"
+ 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
+ CFLAGS="$save_CFLAGS"
+ ;;
+ *)
+ may_have_cet=no
+ enable_cet=no
+ ;;
+esac
+
+if test x$may_have_cet = xyes; then
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk"
+ 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.$ac_ext
+/* end confdefs.h. */
+
+static void
+foo (void)
+{
+}
+
+static void
+__attribute__ ((noinline, noclone))
+xxx (void (*f) (void))
+{
+ f ();
+}
+
+static void
+__attribute__ ((noinline, noclone))
+bar (void)
+{
+ xxx (foo);
+}
+
+int
+main ()
+{
+ bar ();
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ have_cet=no
+else
+ have_cet=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ LDFLAGS="$save_LDFLAGS"
+ 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
+fi
+if test x$enable_cet = xyes; then
+ CET_HOST_FLAGS="-fcf-protection"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
echo "# Warning: this fragment is automatically generated" > temp-frag
if [ -n "${frag}" ] && [ -f "${frag}" ]; then
esac
AC_SUBST(NOASANFLAG)
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+AC_SUBST(CET_HOST_FLAGS)
+
echo "# Warning: this fragment is automatically generated" > temp-frag
if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
+2020-04-25 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/94739
+ * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
+ * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
+ AC_SUBST(CET_HOST_FLAGS).
+ * Makefile.in: Regenerated.
+ * aclocal.m4: Likewise.
+ * configure: Likewise.
+
2020-03-19 Martin Liska <mliska@suse.cz>
* lto-plugin.c (LTO_SECTION_PREFIX): Rename to ...
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
AM_LDFLAGS = @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
override CFLAGS := $(filter-out -fsanitize=address,$(CFLAGS))
subdir = .
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
+ $(top_srcdir)/../config/cet.m4 \
$(top_srcdir)/../config/depstand.m4 \
+ $(top_srcdir)/../config/enable.m4 \
$(top_srcdir)/../config/lead-dot.m4 \
$(top_srcdir)/../config/lthostflags.m4 \
$(top_srcdir)/../config/override.m4 \
AWK = @AWK@
CC = @CC@
CCDEPMODE = @CCDEPMODE@
+CET_HOST_FLAGS = @CET_HOST_FLAGS@
CFLAGS = @CFLAGS@
CPP = @CPP@
CPPFLAGS = @CPPFLAGS@
gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
AM_LDFLAGS = @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
libexecsub_LTLIBRARIES = liblto_plugin.la
]) # _AM_PROG_TAR
m4_include([../config/acx.m4])
+m4_include([../config/cet.m4])
m4_include([../config/depstand.m4])
+m4_include([../config/enable.m4])
m4_include([../config/lead-dot.m4])
m4_include([../config/lthostflags.m4])
m4_include([../config/override.m4])
real_target_noncanonical
accel_dir_suffix
gcc_build_dir
+CET_HOST_FLAGS
ac_lto_plugin_ldflags
ac_lto_plugin_warn_cflags
EGREP
with_libiberty
enable_dependency_tracking
enable_largefile
+enable_cet
with_gcc_major_version_only
enable_shared
enable_static
--disable-dependency-tracking
speeds up one-time build
--disable-largefile omit support for large files
+ --enable-cet enable Intel CET in host libraries [default=auto]
--enable-shared[=PKGS] build shared libraries [default=yes]
--enable-static[=PKGS] build static libraries [default=yes]
--enable-fast-install[=PKGS]
fi
+ # Check whether --enable-cet was given.
+if test "${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=auto
+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*)
+ may_have_cet=yes
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fcf-protection"
+ 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
+ CFLAGS="$save_CFLAGS"
+ ;;
+ *)
+ may_have_cet=no
+ enable_cet=no
+ ;;
+esac
+
+if test x$may_have_cet = xyes; then
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk"
+ 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.$ac_ext
+/* end confdefs.h. */
+
+static void
+foo (void)
+{
+}
+
+static void
+__attribute__ ((noinline, noclone))
+xxx (void (*f) (void))
+{
+ f ();
+}
+
+static void
+__attribute__ ((noinline, noclone))
+bar (void)
+{
+ xxx (foo);
+}
+
+int
+main ()
+{
+ bar ();
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ have_cet=no
+else
+ have_cet=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ LDFLAGS="$save_LDFLAGS"
+ 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
+fi
+if test x$enable_cet = xyes; then
+ CET_HOST_FLAGS="-fcf-protection"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
if test x"$host_subdir" = x.; then
gcc_build_dir=../gcc
else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11774 "configure"
+#line 11919 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11880 "configure"
+#line 12025 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
fi
AC_SUBST(ac_lto_plugin_ldflags)
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+AC_SUBST(CET_HOST_FLAGS)
+
if test x"$host_subdir" = x.; then
gcc_build_dir=../gcc
else
projects / gcc.git / commitdiff