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| author | Vincent Palatin <vpalatin@chromium.org> | 2012-11-27 14:09:41 -0800 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-11-27 15:55:15 -0800 |
| commit | e6bf4533c27d5d5a1ba041a11406248959073dd6 (patch) | |
| tree | b7c3aac8e45252773ef2b0d0f9bf92cafeb7dbdd /core/cortex-m/build.mk | |
| parent | e2f84669979f63df4a11d78caee9abf3e9b1724a (diff) | |
| download | chrome-ec-e6bf4533c27d5d5a1ba041a11406248959073dd6.tar.gz | |
Prevent GCC4.7 from generating unaligned memory accesses
The behavior of GCC seems to have changed between 4.6 and 4.7,
now it might generate unaligned memory accesses, so we need to
explicitly set "-mno-unaligned-access".
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=chrome-os-partner:16391
TEST=make BOARD=link dis, then check the generated assembly for
keyboard_scan_init
Change-Id: I326479a77d6319f1d74e17efe483f5cde56ff325
Reviewed-on: https://gerrit.chromium.org/gerrit/38758
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'core/cortex-m/build.mk')
| -rw-r--r-- | core/cortex-m/build.mk | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/core/cortex-m/build.mk b/core/cortex-m/build.mk index ec1ba424a8..5a7877bd02 100644 --- a/core/cortex-m/build.mk +++ b/core/cortex-m/build.mk @@ -11,6 +11,7 @@ CFLAGS_FPU-$(CONFIG_FPU)=-mfpu=fpv4-sp-d16 -mfloat-abi=hard # CPU specific compilation flags CFLAGS_CPU=-mcpu=cortex-m4 -mthumb -Os -mno-sched-prolog +CFLAGS_CPU+=-mno-unaligned-access CFLAGS_CPU+=$(CFLAGS_FPU-y) core-y=cpu.o init.o panic.o switch.o task.o timer.o |