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| author | Ian Lance Taylor <iant@google.com> | 2010-09-28 00:07:12 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2010-09-28 00:07:12 +0000 |
| commit | b6110d6d1987f583b0f5abad9524e604a24c5b73 (patch) | |
| tree | abe9b70798228d019e6509efb68de44278c0e201 /libgcc/configure | |
| parent | 9b809695ffe6091f8e491cad04c08e6c63f880af (diff) | |
| download | gcc-b6110d6d1987f583b0f5abad9524e604a24c5b73.zip gcc-b6110d6d1987f583b0f5abad9524e604a24c5b73.tar.gz gcc-b6110d6d1987f583b0f5abad9524e604a24c5b73.tar.bz2 | |
i386.c (ix86_supports_split_stack): -fsplit-stack requires assembler support for CFI directives.
gcc/:
* config/i386/i386.c (ix86_supports_split_stack): -fsplit-stack
requires assembler support for CFI directives.
libgcc/:
* configure.ac: Test whether assembler supports CFI directives.
* config.host: Only add t-stack and i386/t-stack-i386 to
tmake_file if libgcc_cv_cfi is "yes".
* configure: Rebuild.
From-SVN: r164671
Diffstat (limited to 'libgcc/configure')
| -rw-r--r-- | libgcc/configure | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/libgcc/configure b/libgcc/configure index 5c8e3a0..56195bb 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -3707,6 +3707,26 @@ $as_echo "$libgcc_cv_fixed_point" >&6; } fixed_point=$libgcc_cv_fixed_point +# Check for assembler CFI support. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether assembler supports CFI directives" >&5 +$as_echo_n "checking whether assembler supports CFI directives... " >&6; } +if test "${libgcc_cv_cfi+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i = __GCC_HAVE_DWARF2_CFI_ASM; +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgcc_cv_cfi=yes +else + libgcc_cv_cfi=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_cfi" >&5 +$as_echo "$libgcc_cv_cfi" >&6; } + # Check 32bit or 64bit for x86. case ${host} in i?86*-*-* | x86_64*-*-*) |