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| author | mtklein <mtklein@chromium.org> | 2015-12-08 11:55:17 -0800 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2015-12-08 11:55:17 -0800 |
| commit | cc881dafcbd00e8a811c47c14b472acdba5dd6c6 (patch) | |
| tree | 773a113973a0d838954eebfe2f7ba9bd76c5aab8 /samplecode/SampleAnimatedText.cpp | |
| parent | 290f00cd752b51f517b88c40bc89016fcaf5e477 (diff) | |
Add sk_careful_memcpy to catch undefined behavior in memcpy.
It's undefined behavior to pass null as src or dst to memcpy, even if len is 0.
This currently triggers -fsanitize=attribute-nonnull warnings, but also can
lead to very unexpected code generation with GCC.
sk_careful_memcpy() checks len first before calling memcpy(),
which prevents that weird undefined situation.
This allows me to mark all sanitizers as no-recover, i.e. make-the-bots-red fatal.
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot
BUG=skia:4641
NOTREECHECKS=true
Review URL: https://codereview.chromium.org/1510683002
Diffstat (limited to 'samplecode/SampleAnimatedText.cpp')
0 files changed, 0 insertions, 0 deletions