diff options
Diffstat (limited to 'lib/msan/msan.cc')
-rw-r--r-- | lib/msan/msan.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/msan/msan.cc b/lib/msan/msan.cc index ed6efbdd6..caa77366c 100644 --- a/lib/msan/msan.cc +++ b/lib/msan/msan.cc @@ -543,6 +543,13 @@ u32 __msan_get_origin(const void *a) { return *(u32*)origin_ptr; } +int __msan_origin_is_descendant_or_same(u32 this_id, u32 prev_id) { + Origin o = Origin::FromRawId(this_id); + while (o.raw_id() != prev_id && o.isChainedOrigin()) + o = o.getNextChainedOrigin(nullptr); + return o.raw_id() == prev_id; +} + u32 __msan_get_umr_origin() { return __msan_origin_tls; } |