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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2014-05-21 09:02:13 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2014-05-21 09:02:13 +0000 |
| commit | 208aae8ee0b581683bf25a602585bffc0c3968cc (patch) | |
| tree | f2f825eb96ef174d2a0a362b7c4070fa6241488c /compiler-rt/include | |
| parent | e88161626f2ab30634051931962341058e2c781b (diff) | |
| download | bcm5719-llvm-208aae8ee0b581683bf25a602585bffc0c3968cc.tar.gz bcm5719-llvm-208aae8ee0b581683bf25a602585bffc0c3968cc.zip | |
[msan] Chained origins re-design.
Generalize StackDepot and create a new specialized instance of it to
efficiently (i.e. without duplicating stack trace data) store the
origin history tree.
This reduces memory usage for chained origins roughly by an order of
magnitude.
Most importantly, this new design allows us to put two limits on
stored history data (exposed in MSAN_OPTIONS) that help avoid
exponential growth in used memory on certain workloads.
See comments in lib/msan/msan_origin.h for more details.
llvm-svn: 209284
Diffstat (limited to 'compiler-rt/include')
| -rw-r--r-- | compiler-rt/include/sanitizer/msan_interface.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/compiler-rt/include/sanitizer/msan_interface.h b/compiler-rt/include/sanitizer/msan_interface.h index badb3347222..e8c510be9f6 100644 --- a/compiler-rt/include/sanitizer/msan_interface.h +++ b/compiler-rt/include/sanitizer/msan_interface.h @@ -19,10 +19,6 @@ #ifdef __cplusplus extern "C" { #endif - /* Returns a string describing a stack origin. - Return NULL if the origin is invalid, or is not a stack origin. */ - const char *__msan_get_origin_descr_if_stack(uint32_t id); - /* Set raw origin for the memory range. */ void __msan_set_origin(const volatile void *a, size_t size, uint32_t origin); |
