diff options
Diffstat (limited to 'gcc/configure.in')
| -rw-r--r-- | gcc/configure.in | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/configure.in b/gcc/configure.in index f69250efd01..01a927e76a0 100644 --- a/gcc/configure.in +++ b/gcc/configure.in @@ -1484,6 +1484,26 @@ EOF fi AC_MSG_RESULT($gcc_cv_as_eh_frame) +AC_MSG_CHECKING(assembler section merging support) +gcc_cv_as_shf_merge=no +if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then + if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then + gcc_cv_as_subsections="working SHF_MERGE support" + fi +elif test x$gcc_cv_as != x; then + # Check if we support SHF_MERGE sections + echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s + if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then + gcc_cv_as_shf_merge=yes + fi + rm -f conftest.s conftest.o +fi +if test x"$gcc_cv_as_shf_merge" = xyes; then + AC_DEFINE(HAVE_GAS_SHF_MERGE, 1, +[Define if your assembler supports marking sections with SHF_MERGE flag.]) +fi +AC_MSG_RESULT($gcc_cv_as_shf_merge) + case "$target" in sparc*-*-*) AC_CACHE_CHECK([assembler .register pseudo-op support], |