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| author | Richard Earnshaw <rearnsha@arm.com> | 2017-10-20 12:33:39 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2017-10-20 12:33:39 +0000 |
| commit | e64944ac65c3e0bb4115873f17b9c48f06c3813a (patch) | |
| tree | 46cfe6bcfdeb5f89d75190f67fa79507e9e0abb7 /libatomic/Makefile.am | |
| parent | ffa3ce5322226f094d3762ee5f32a5aab8b6a149 (diff) | |
| download | gcc-e64944ac65c3e0bb4115873f17b9c48f06c3813a.zip gcc-e64944ac65c3e0bb4115873f17b9c48f06c3813a.tar.gz gcc-e64944ac65c3e0bb4115873f17b9c48f06c3813a.tar.bz2 | |
[arm] Fix architecture selection when building libatomic with automatic FPU selection
Libatomic builds a few functions for Arm with an explicit -march
option. This option does not specify an FPU, which can lead to
problems when targeting a hard-float or softfp environment since the
architecture appears to be incompatible with the selected ABI.
The fix is simple enough, just add +fp (the minimum floating point
option) to the architecture. We don't use anything from the FP
architecture, so it shouldn't really change anything; and if we are
building for -mfloat-abi=soft the canonicalization process will remove
the unnecessary fp attributes anyway.
* Makefile.am: (IFUNC_OPTIONS): Set the architecture to
-march=armv7-a+fp on Linux/Arm.
* Makefile.in: Regenerated.
From-SVN: r253935
Diffstat (limited to 'libatomic/Makefile.am')
| -rw-r--r-- | libatomic/Makefile.am | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libatomic/Makefile.am b/libatomic/Makefile.am index d731406..9c45700 100644 --- a/libatomic/Makefile.am +++ b/libatomic/Makefile.am @@ -123,7 +123,7 @@ libatomic_la_LIBADD = $(foreach s,$(SIZES),$(addsuffix _$(s)_.lo,$(SIZEOBJS))) ## On a target-specific basis, include alternates to be selected by IFUNC. if HAVE_IFUNC if ARCH_ARM_LINUX -IFUNC_OPTIONS = -march=armv7-a -DHAVE_KERNEL64 +IFUNC_OPTIONS = -march=armv7-a+fp -DHAVE_KERNEL64 libatomic_la_LIBADD += $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS))) libatomic_la_LIBADD += $(addsuffix _8_2_.lo,$(SIZEOBJS)) endif |