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| author | Richard Henderson <rth@redhat.com> | 2011-11-09 10:09:53 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2011-11-09 10:09:53 -0800 |
| commit | 4bdd090f8e0becf7191967e920aa1c9f9b796d1b (patch) | |
| tree | 2be51ac0c0d2ab8042b16a9225e4d4826aac0051 /libitm/configure | |
| parent | 29d281ca3a5cd40890ed826c6c6b8efe65ca266d (diff) | |
| download | gcc-4bdd090f8e0becf7191967e920aa1c9f9b796d1b.zip gcc-4bdd090f8e0becf7191967e920aa1c9f9b796d1b.tar.gz gcc-4bdd090f8e0becf7191967e920aa1c9f9b796d1b.tar.bz2 | |
libitm: Configure for gas cfi pseudo ops.
* asmcfi.m4: New file.
* configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
* configure, aclocal.m4, config.h.in: Rebuild.
* config/generic/asmcfi.h: New file.
* config/x86/sjlj.S: Use it.
From-SVN: r181224
Diffstat (limited to 'libitm/configure')
| -rw-r--r-- | libitm/configure | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libitm/configure b/libitm/configure index e6bc1aa..0f0ec1f 100644 --- a/libitm/configure +++ b/libitm/configure @@ -16908,6 +16908,42 @@ $as_echo "#define LIBITM_GNU_SYMBOL_VERSIONING 1" >>confdefs.h fi +# See if we can emit unwind info in the sjlj stub. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler .cfi pseudo-op support" >&5 +$as_echo_n "checking assembler .cfi pseudo-op support... " >&6; } +if test "${gcc_cv_as_cfi_pseudo_op+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + + gcc_cv_as_cfi_pseudo_op=unknown + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +asm (".cfi_startproc\n\t.cfi_endproc"); +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gcc_cv_as_cfi_pseudo_op=yes +else + gcc_cv_as_cfi_pseudo_op=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_cfi_pseudo_op" >&5 +$as_echo "$gcc_cv_as_cfi_pseudo_op" >&6; } + if test "x$gcc_cv_as_cfi_pseudo_op" = xyes; then + +$as_echo "#define HAVE_AS_CFI_PSEUDO_OP 1" >>confdefs.h + + fi + + # Determine the proper ABI type for size_t. { $as_echo "$as_me:${as_lineno-$LINENO}: checking how size_t is mangled" >&5 |