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| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-28 00:07:12 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-28 00:07:12 +0000 |
| commit | c9b3ebc566aa3daf9c5d1b7c86f0bf2fd4dbdbb0 (patch) | |
| tree | abe9b70798228d019e6509efb68de44278c0e201 /libgcc/configure.ac | |
| parent | 2375c63d24a10083bf96a66beb190b80e0e0db06 (diff) | |
| download | gcc-c9b3ebc566aa3daf9c5d1b7c86f0bf2fd4dbdbb0.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164671 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgcc/configure.ac')
| -rw-r--r-- | libgcc/configure.ac | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libgcc/configure.ac b/libgcc/configure.ac index 60766371d3a..6bb4844b882 100644 --- a/libgcc/configure.ac +++ b/libgcc/configure.ac @@ -135,6 +135,12 @@ AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point], fixed_point=$libgcc_cv_fixed_point AC_SUBST(fixed_point) +# Check for assembler CFI support. +AC_CACHE_CHECK([whether assembler supports CFI directives], [libgcc_cv_cfi], + [AC_COMPILE_IFELSE([int i = __GCC_HAVE_DWARF2_CFI_ASM;], + [libgcc_cv_cfi=yes], + [libgcc_cv_cfi=no])]) + # Check 32bit or 64bit for x86. case ${host} in i?86*-*-* | x86_64*-*-*) |