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Enable building libquadmath with Intel CET

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libquadmath/
	* Makefile.am: Update AM_CFLAGS.
	* Makefile.in: Regenerate:
	* acinclude.m4: Add enable.m4 and cet.m4.
	* configure: Regenerate.
	* configure.ac: Set CET_FLAGS. Update XCFLAGS.

From-SVN: r254899
This commit is contained in:
Igor Tsimbalist 2017-11-17 23:36:50 +01:00
parent ff035ef673
commit fda26abecc
6 changed files with 96 additions and 3 deletions
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8
libquadmath/ChangeLog
View file

@ -1,3 +1,11 @@
2017-11-17 Igor Tsimbalist <igor.v.tsimbalist@intel.com>
* Makefile.am: Update AM_CFLAGS.
* Makefile.in: Regenerate:
* acinclude.m4: Add enable.m4 and cet.m4.
* configure: Regenerate.
* configure.ac: Set CET_FLAGS. Update XCFLAGS.
2017-11-05 Tom de Vries <tom@codesourcery.com>
PR other/82784

1
libquadmath/Makefile.am
View file

@ -7,6 +7,7 @@ AUTOMAKE_OPTIONS = 1.8 foreign
if BUILD_LIBQUADMATH
ACLOCAL_AMFLAGS = -I .. -I ../config
AM_CPPFLAGS = -I $(top_srcdir)/../include
AM_CFLAGS = $(XCFLAGS)
## May be used by toolexeclibdir.
gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)

5
libquadmath/Makefile.in
View file

@ -70,7 +70,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
$(top_srcdir)/../ltoptions.m4 $(top_srcdir)/../ltsugar.m4 \
$(top_srcdir)/../ltversion.m4 $(top_srcdir)/../lt~obsolete.m4 \
$(top_srcdir)/acinclude.m4 $(top_srcdir)/../libtool.m4 \
$(top_srcdir)/configure.ac
$(top_srcdir)/../config/enable.m4 \
$(top_srcdir)/../config/cet.m4 $(top_srcdir)/configure.ac
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4)
am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
@ -275,6 +276,7 @@ SET_MAKE = @SET_MAKE@
SHELL = @SHELL@
STRIP = @STRIP@
VERSION = @VERSION@
XCFLAGS = @XCFLAGS@
abs_builddir = @abs_builddir@
abs_srcdir = @abs_srcdir@
abs_top_builddir = @abs_top_builddir@
@ -341,6 +343,7 @@ top_srcdir = @top_srcdir@
AUTOMAKE_OPTIONS = 1.8 foreign
@BUILD_LIBQUADMATH_TRUE@ACLOCAL_AMFLAGS = -I .. -I ../config
@BUILD_LIBQUADMATH_TRUE@AM_CPPFLAGS = -I $(top_srcdir)/../include
@BUILD_LIBQUADMATH_TRUE@AM_CFLAGS = $(XCFLAGS)
@BUILD_LIBQUADMATH_TRUE@gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
@BUILD_LIBQUADMATH_TRUE@@LIBQUAD_USE_SYMVER_FALSE@version_arg =
@BUILD_LIBQUADMATH_TRUE@@LIBQUAD_USE_SYMVER_GNU_TRUE@@LIBQUAD_USE_SYMVER_TRUE@version_arg = -Wl,--version-script=$(srcdir)/quadmath.map

2
libquadmath/acinclude.m4
View file

@ -2,6 +2,8 @@ dnl ----------------------------------------------------------------------
dnl This whole bit snagged from libgfortran.
sinclude(../libtool.m4)
sinclude(../config/enable.m4)
sinclude(../config/cet.m4)
dnl The lines below arrange for aclocal not to bring an installed
dnl libtool.m4 into aclocal.m4, while still arranging for automake to
dnl add a definition of LIBTOOL to Makefile.in.

78
libquadmath/configure vendored
View file

@ -604,6 +604,7 @@ LIBOBJS
get_gcc_base_ver
GENINSRC_FALSE
GENINSRC_TRUE
XCFLAGS
BUILD_LIBQUADMATH_FALSE
BUILD_LIBQUADMATH_TRUE
LIBQUAD_USE_SYMVER_SUN_FALSE
@ -750,6 +751,7 @@ with_gnu_ld
enable_libtool_lock
enable_maintainer_mode
enable_symvers
enable_cet
enable_generated_files_in_srcdir
with_gcc_major_version_only
'
@ -1396,6 +1398,8 @@ Optional Features:
--enable-maintainer-mode enable make rules and dependencies not useful
(and sometimes confusing) to the casual installer
--disable-symvers disable symbol versioning for libquadmath
--enable-cet enable Intel CET in target libraries
[default=default]
--enable-generated-files-in-srcdir
put copies of generated files in source dir intended
for creating source tarballs for users without
@ -10572,7 +10576,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 10575 "configure"
#line 10579 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -10678,7 +10682,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 10681 "configure"
#line 10685 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -12819,6 +12823,76 @@ $as_echo "#define USE_I18N_NUMBER_H 1" >>confdefs.h
fi
# Add CET specific flags if CET is enabled
# Check whether --enable-cet was given.
if test "${enable_cet+set}" = set; then :
enableval=$enable_cet;
case "$enableval" in
yes|no|default) ;;
*) as_fn_error "Unknown argument to enable/disable cet" "$LINENO" 5 ;;
esac
else
enable_cet=default
fi
case "$host" in
i[34567]86-*-linux* | x86_64-*-linux*)
case "$enable_cet" in
default)
# Check if assembler supports CET.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
asm ("setssbsy");
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
enable_cet=yes
else
enable_cet=no
fi
rm -f core conftest.err conftest.$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$enable_cet = xyes; then
CET_FLAGS="-fcf-protection -mcet"
fi
XCFLAGS="$XCFLAGS $CET_FLAGS"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure

5
libquadmath/configure.ac
View file

@ -341,6 +341,11 @@ if test x$quadmath_use_i18n_number_h = xyes; then
AC_DEFINE([USE_I18N_NUMBER_H],[1],[whether i18n number rewriting can be supported])
fi
# Add CET specific flags if CET is enabled
GCC_CET_FLAGS(CET_FLAGS)
XCFLAGS="$XCFLAGS $CET_FLAGS"
AC_SUBST(XCFLAGS)
AC_CACHE_SAVE
if test ${multilib} = yes; then