diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2005-07-02 08:52:21 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2005-07-02 08:52:21 +0000 |
| commit | 7cb92f93907c69d5024aca02cd5ab9afbd02118a (patch) | |
| tree | 1cb854702400de0149fb900c82b137e5603e222b /gcc/configure | |
| parent | 955e106ef7e029ea0813ab442bfac17567b87ecf (diff) | |
* Makefile.def (target_modules): Add libssp.
* configure.in (target_libraries): Add target-libssp.
* configure: Rebuilt.
* Makefile.in: Rebuilt.
gcc/
* gcc.c (LINK_SSP_SPEC): Define.
(link_ssp_spec): New variable.
(LINK_COMMAND_SPEC): Add %(link_ssp).
(static_specs): Add link_ssp_spec.
* configure.ac (TARGET_LIBC_PROVIDES_SSP): New test.
* configure: Rebuilt.
* config.in: Rebuilt.
* config/rs6000/linux.h (TARGET_THREAD_SSP_OFFSET): Define.
* config/rs6000/linux64.h (TARGET_THREAD_SSP_OFFSET): Likewise.
* config/i386/linux.h (TARGET_THREAD_SSP_OFFSET): Likewise.
* config/i386/linux64.h (TARGET_THREAD_SSP_OFFSET): Likewise.
* config/rs6000/rs6000.md (stack_protect_set, stack_protect_test):
If TARGET_THREAD_SSP_OFFSET is defined, use -0x7010(13) resp.
-0x7008(2) instead of reading __stack_chk_guard variable.
* config/i386/i386.md (UNSPEC_SP_SET, UNSPEC_SP_TEST): Change
number.
(UNSPEC_SP_TLS_SET, UNSPEC_SP_TLS_TEST): New constants.
(stack_protect_set, stack_protect_test): Use *_tls* patterns
if TARGET_THREAD_SSP_OFFSET is defined.
(stack_tls_protect_set_si, stack_tls_protect_set_di,
stack_tls_protect_test_si, stack_tls_protect_test_di): New insns.
Revert:
2005-06-27 Richard Henderson <rth@redhat.com>
* libgcc-std.ver (GCC_4.1.0): New.
* libgcc.h (__stack_chk_guard): Declare.
(__stack_chk_fail, __stack_chk_fail_local): Declare.
* libgcc2.c (L_stack_chk, L_stack_chk_local): New.
* mklibgcc.in (lib2funcs): Add them.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@101531 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/configure b/gcc/configure index f557c2de921..79ed496b99d 100755 --- a/gcc/configure +++ b/gcc/configure @@ -15514,6 +15514,54 @@ _ACEOF fi +# Test for stack protector support in target C library. +case "$target" in + *-*-linux*) + echo "$as_me:$LINENO: checking __stack_chk_fail in target GNU C library" >&5 +echo $ECHO_N "checking __stack_chk_fail in target GNU C library... $ECHO_C" >&6 +if test "${gcc_cv_libc_provides_ssp+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + gcc_cv_libc_provides_ssp=no + if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then + if test "x$with_sysroot" = x; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" + elif test "x$with_sysroot" = xyes; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" + else + glibc_header_dir="${with_sysroot}/usr/include" + fi + else + glibc_header_dir=/usr/include + fi + # glibc 2.4 and later provides __stack_chk_fail and + # either __stack_chk_guard, or TLS access to stack guard canary. + if test -f $glibc_header_dir/features.h \ + && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ + $glibc_header_dir/features.h > /dev/null; then + if $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ + $glibc_header_dir/features.h > /dev/null; then + gcc_cv_libc_provides_ssp=yes + elif $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+2' \ + $glibc_header_dir/features.h > /dev/null \ + && $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ + $glibc_header_dir/features.h > /dev/null; then + gcc_cv_libc_provides_ssp=yes + fi + fi +fi +echo "$as_me:$LINENO: result: $gcc_cv_libc_provides_ssp" >&5 +echo "${ECHO_T}$gcc_cv_libc_provides_ssp" >&6 ;; + *) gcc_cv_libc_provides_ssp=no ;; +esac +if test x$gcc_cv_libc_provides_ssp = xyes; then + +cat >>confdefs.h <<\_ACEOF +#define TARGET_LIBC_PROVIDES_SSP 1 +_ACEOF + +fi + # Find out what GC implementation we want, or may, use. # Check whether --with-gc or --without-gc was given. |