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| author | chefmax <chefmax@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-21 07:32:45 +0000 |
|---|---|---|
| committer | chefmax <chefmax@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-21 07:32:45 +0000 |
| commit | 5645a48f7ebd0f97a072b7a2eb40b27cea9d4318 (patch) | |
| tree | 2bdaf703dd35e1806b59bd7d74c7eee290a1054f /libsanitizer/ubsan/ubsan_value.cc | |
| parent | 397881d34f32eddf4a6665789f1a7cdd5ff3695e (diff) | |
| download | gcc-5645a48f7ebd0f97a072b7a2eb40b27cea9d4318.tar.gz | |
libsanitizer merge from upstream r250806.
libsanitizer/
2015-10-20 Maxim Ostapenko <m.ostapenko@partner.samsung.com>
* All source files: Merge from upstream r250806.
* configure.ac (link_sanitizer_common): Add -lrt flag.
* configure.tgt: Enable TSAN and LSAN for aarch64-linux targets.
Set CXX_ABI_NEEDED=true for darwin.
* asan/Makefile.am (asan_files): Add new files.
(DEFS): Add DCAN_SANITIZE_UB=0 and remove unused and legacy
DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0.
* asan/Makefile.in: Regenerate.
* ubsan/Makefile.am (ubsan_files): Add new files.
(DEFS): Add DCAN_SANITIZE_UB=1.
(libubsan_la_LIBADD): Add -lc++abi if CXX_ABI_NEEDED is true.
* ubsan/Makefile.in: Regenerate.
* tsan/Makefile.am (tsan_files): Add new files.
(DEFS): Add DCAN_SANITIZE_UB=0.
* tsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.am (sanitizer_common_files): Add new files.
* sanitizer_common/Makefile.in: Regenerate.
* asan/libtool-version: Bump the libasan SONAME.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229111 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libsanitizer/ubsan/ubsan_value.cc')
| -rw-r--r-- | libsanitizer/ubsan/ubsan_value.cc | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/libsanitizer/ubsan/ubsan_value.cc b/libsanitizer/ubsan/ubsan_value.cc index e2f664d3b24..e327f6ffc2e 100644 --- a/libsanitizer/ubsan/ubsan_value.cc +++ b/libsanitizer/ubsan/ubsan_value.cc @@ -10,6 +10,8 @@ // //===----------------------------------------------------------------------===// +#include "ubsan_platform.h" +#if CAN_SANITIZE_UB #include "ubsan_value.h" #include "sanitizer_common/sanitizer_common.h" #include "sanitizer_common/sanitizer_libc.h" @@ -79,7 +81,14 @@ FloatMax Value::getFloatValue() const { #endif case 32: { float Value; - internal_memcpy(&Value, &Val, 4); +#if defined(__BIG_ENDIAN__) + // For big endian the float value is in the last 4 bytes. + // On some targets we may only have 4 bytes so we count backwards from + // the end of Val to account for both the 32-bit and 64-bit cases. + internal_memcpy(&Value, ((const char*)(&Val + 1)) - 4, 4); +#else + internal_memcpy(&Value, &Val, 4); +#endif return Value; } case 64: { @@ -98,3 +107,5 @@ FloatMax Value::getFloatValue() const { } UNREACHABLE("unexpected floating point bit width"); } + +#endif // CAN_SANITIZE_UB |