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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-07-09 00:27:21 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-07-09 00:27:21 +0000 |
| commit | f9423f540611c4d173405db6d096a1f8c623bee5 (patch) | |
| tree | 2c11e8768375a58ac458e5a70a031a44a7cd6643 /gcc/configure | |
| parent | ea6477ff600a0e3f17efc8ea5fec287d66e77d7c (diff) | |
| download | gcc-f9423f540611c4d173405db6d096a1f8c623bee5.tar.gz | |
* configure.in: Check if the assembler supports ".balign" and
".p2align" and define HAVE_GAS_BALIGN_AND_P2ALIGN appropriately.
* acconfig.h (HAVE_GAS_BALIGN_AND_P2ALIGN): New tag.
* i386/gas.h (ASM_OUTPUT_ALIGN): If the assembler has support for
".balign" then use it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@21023 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/configure b/gcc/configure index 654ec63724e..9e59376e064 100755 --- a/gcc/configure +++ b/gcc/configure @@ -5237,6 +5237,15 @@ elif [ -f $srcdir/../gas/configure.in ]; then done gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"` gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"` + # Gas version 2.6 and later support for .balign and .p2align. + # bytes to skip when using .p2align. + if [ "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2 ]; then + gcc_cv_as_alignment_features=".balign and .p2align" + cat >> confdefs.h <<\EOF +#define HAVE_GAS_BALIGN_AND_P2ALIGN 1 +EOF + + fi # Gas version 2.8 and later support specifying the maximum # bytes to skip when using .p2align. if [ "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2 ]; then @@ -5251,6 +5260,17 @@ elif [ x$host = x$target ]; then gcc_cv_as=as$host_exeext fi if [ x$gcc_cv_as != x ]; then + # Check if we have .balign and .p2align + echo ".balign 4" > conftest.s + echo ".p2align 2" >> conftest.s + if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then + gcc_cv_as_alignment_features=".balign and .p2align" + cat >> confdefs.h <<\EOF +#define HAVE_GAS_BALIGN_AND_P2ALIGN 1 +EOF + + fi + rm -f conftest.s conftest.o # Check if specifying the maximum bytes to skip when # using .p2align is supported. echo ".p2align 4,,7" > conftest.s |