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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 | 6f365cc753d8150ae694357281e4775ac6e365cf (patch) | |
| tree | 9e5c94cfc525292635964f034f96dbbc255cefe2 /lib/msan/msan_interface_internal.h | |
| parent | 72a4588166670e397a15c4a97529c849dcb11b3f (diff) | |
[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.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@209284 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/msan/msan_interface_internal.h')
| -rw-r--r-- | lib/msan/msan_interface_internal.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/lib/msan/msan_interface_internal.h b/lib/msan/msan_interface_internal.h index 955288dc9..c005c2a36 100644 --- a/lib/msan/msan_interface_internal.h +++ b/lib/msan/msan_interface_internal.h @@ -136,8 +136,6 @@ bool __msan_is_in_loader(); SANITIZER_INTERFACE_ATTRIBUTE u32 __msan_get_umr_origin(); SANITIZER_INTERFACE_ATTRIBUTE -const char *__msan_get_origin_descr_if_stack(u32 id); -SANITIZER_INTERFACE_ATTRIBUTE void __msan_partial_poison(const void* data, void* shadow, uptr size); // Tell MSan about newly allocated memory (ex.: custom allocator). |