diff options
| author | Stephan Bergmann <sbergman@redhat.com> | 2014-11-11 10:26:12 +0100 |
|---|---|---|
| committer | Stephan Bergmann <sbergman@redhat.com> | 2014-11-11 10:40:50 +0100 |
| commit | af0605ce4511b1248810ced538d9f9f62e74d7d7 (patch) | |
| tree | dbd34803405b83e1020ec507a8ce3dec5df3748c /external | |
| parent | 205044e89722e9b3a9c700ee3ae6f2335f57ef7b (diff) | |
Avoid -fsanitize=signed-integer-overflow
Change-Id: I1a8ae99401e488e2ece47be4119843945154ef98
Diffstat (limited to 'external')
| -rw-r--r-- | external/lcms2/UnpackedTarball_lcms2.mk | 1 | ||||
| -rw-r--r-- | external/lcms2/ubsan.patch.0 | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/external/lcms2/UnpackedTarball_lcms2.mk b/external/lcms2/UnpackedTarball_lcms2.mk index fdf2ab3c6ae4..6490110fe6cb 100644 --- a/external/lcms2/UnpackedTarball_lcms2.mk +++ b/external/lcms2/UnpackedTarball_lcms2.mk @@ -18,6 +18,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,lcms2,\ external/lcms2/lcms2-msvc-disable-sse2.patch.1 \ external/lcms2/lcms2-vc2013-project.patch \ external/lcms2/lcms2-config-guess.patch.0 \ + external/lcms2/ubsan.patch.0 \ )) # vim: set noet sw=4 ts=4: diff --git a/external/lcms2/ubsan.patch.0 b/external/lcms2/ubsan.patch.0 new file mode 100644 index 000000000000..2eafcad39696 --- /dev/null +++ b/external/lcms2/ubsan.patch.0 @@ -0,0 +1,11 @@ +--- src/lcms2_internal.h ++++ src/lcms2_internal.h +@@ -93,7 +93,7 @@ + + // A fast way to convert from/to 16 <-> 8 bits + #define FROM_8_TO_16(rgb) (cmsUInt16Number) ((((cmsUInt16Number) (rgb)) << 8)|(rgb)) +-#define FROM_16_TO_8(rgb) (cmsUInt8Number) ((((rgb) * 65281 + 8388608) >> 24) & 0xFF) ++#define FROM_16_TO_8(rgb) (cmsUInt8Number) ((((unsigned)(rgb) * 65281 + 8388608) >> 24) & 0xFF) + + // Code analysis is broken on asserts + #ifdef _MSC_VER |