author | Kostya Serebryany <kcc@google.com> | |
Mon, 23 Dec 2013 14:15:08 +0000 (14:15 +0000) | ||
committer | Kostya Serebryany <kcc@google.com> | |
Mon, 23 Dec 2013 14:15:08 +0000 (14:15 +0000) | ||
commit | 26f1d1cbbce40b3b496d9264064a0ed467f763e6 | |
tree | 1e067c758b5e396b6ee6aa5f9758024baf92c747 | tree | snapshot (tar.xz tar.gz zip) |
parent | 1fe014e5fcaf45dd1d26affa44a5c9579337f200 | commit | diff |
[asan] don't unpoison redzones on function exit in use-after-return mode.
Summary:
Before this change the instrumented code before Ret instructions looked like:
<Unpoison Frame Redzones>
if (Frame != OriginalFrame) // I.e. Frame is fake
<Poison Complete Frame>
Now the instrumented code looks like:
if (Frame != OriginalFrame) // I.e. Frame is fake
<Poison Complete Frame>
else
<Unpoison Frame Redzones>
Reviewers: eugenis
Reviewed By: eugenis
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2458
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197907 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Before this change the instrumented code before Ret instructions looked like:
<Unpoison Frame Redzones>
if (Frame != OriginalFrame) // I.e. Frame is fake
<Poison Complete Frame>
Now the instrumented code looks like:
if (Frame != OriginalFrame) // I.e. Frame is fake
<Poison Complete Frame>
else
<Unpoison Frame Redzones>
Reviewers: eugenis
Reviewed By: eugenis
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2458
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197907 91177308-0d34-0410-b5e6-96231b3b80d8