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Enable CET in cross compiler if possible

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Don't perform CET run-time check for host when cross compiling.  Instead,
enable CET in cross compiler if possible so that it will run on both CET
and non-CET hosts.

config/

	PR bootstrap/94998
	* cet.m4 (GCC_CET_HOST_FLAGS): Enable CET in cross compiler if
	possible.

libiberty/

	PR bootstrap/94998
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/94998
	* configure: Regenerated.
This commit is contained in:
H.J. Lu 2020-05-12 10:39:42 -07:00
parent 8a6790fb4e
commit d17cdc17c9
6 changed files with 48 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
config/ChangeLog
View File

@ -1,3 +1,9 @@
2020-05-12 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94998
* cet.m4 (GCC_CET_HOST_FLAGS): Enable CET in cross compiler if
possible.
2020-04-28 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94739

18
config/cet.m4
View File

@ -111,7 +111,8 @@ if test x$may_have_cet = xyes; then
fi
if test x$may_have_cet = xyes; then
AC_TRY_RUN([
if test x$cross_compiling = xno; then
AC_TRY_RUN([
static void
foo (void)
{
@ -137,12 +138,17 @@ main ()
bar ();
return 0;
}
],
[have_cet=no],
[have_cet=yes])
if test x$enable_cet = xno -a x$have_cet = xyes; then
AC_MSG_ERROR([Intel CET must be enabled on Intel CET enabled host])
],
[have_cet=no],
[have_cet=yes])
if test x$enable_cet = xno -a x$have_cet = xyes; then
AC_MSG_ERROR([Intel CET must be enabled on Intel CET enabled host])
fi
fi
else
# Enable CET in cross compiler if possible so that it will run on both
# CET and non-CET hosts.
have_cet=yes
fi
if test x$enable_cet = xyes; then
$1="-fcf-protection"

5
libiberty/ChangeLog
View File

@ -1,3 +1,8 @@
2020-05-12 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94998
* configure: Regenerated.
2020-04-28 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94739

12
libiberty/configure vendored
View File

@ -5375,7 +5375,8 @@ rm -f core conftest.err conftest.$ac_objext \
fi
if test x$may_have_cet = xyes; then
if test "$cross_compiling" = yes; then :
if test x$cross_compiling = xno; then
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 $? "cannot run test program while cross compiling
@ -5420,9 +5421,14 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
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
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
else
# Enable CET in cross compiler if possible so that it will run on both
# CET and non-CET hosts.
have_cet=yes
fi
if test x$enable_cet = xyes; then
CET_HOST_FLAGS="-fcf-protection"

5
lto-plugin/ChangeLog
View File

@ -1,3 +1,8 @@
2020-05-12 H.J. Lu <hongjiu.lu@intel.com>
PR bootstrap/94998
* configure: Regenerated.
2020-05-05 Eric Botcazou <ebotcazou@adacore.com>
* lto-plugin.c: Document -linker-output-auto-notlo-rel option.

16
lto-plugin/configure vendored
View File

@ -5768,7 +5768,8 @@ rm -f core conftest.err conftest.$ac_objext \
fi
if test x$may_have_cet = xyes; then
if test "$cross_compiling" = yes; then :
if test x$cross_compiling = xno; then
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 $? "cannot run test program while cross compiling
@ -5813,9 +5814,14 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
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
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
else
# Enable CET in cross compiler if possible so that it will run on both
# CET and non-CET hosts.
have_cet=yes
fi
if test x$enable_cet = xyes; then
CET_HOST_FLAGS="-fcf-protection"
@ -11941,7 +11947,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11944 "configure"
#line 11950 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -12047,7 +12053,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 12050 "configure"
#line 12056 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H