llvm-project

Commit Graph

Author	SHA1	Message	Date
Alexey Samsonov	e595e1ade0	Remove top-level Clang -fsanitize= flags for optional ASan features. Init-order and use-after-return modes can currently be enabled by runtime flags. use-after-scope mode is not really working at the moment. The only problem I see is that users won't be able to disable extra instrumentation for init-order and use-after-scope by a top-level Clang flag. But this instrumentation was implicitly enabled for quite a while and we didn't hear from users hurt by it. llvm-svn: 210924	2014-06-13 17:53:44 +00:00
Alexander Potapenko	7aafd31dad	[ASan] Add -asan-module to the ASan .ll tests. After the -asan pass had been split into -asan (function-level) and -asan-module (module-level) some of the tests have silently stopped working, because they didn't instrument the globals anymore. We've decided to have every test using both passes, irrespective of the presence of globals in it. llvm-svn: 204335	2014-03-20 11:16:34 +00:00
Kostya Serebryany	530e207d8a	[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 llvm-svn: 197907	2013-12-23 14:15:08 +00:00

Author

SHA1

Message

Date

Alexey Samsonov

e595e1ade0

Remove top-level Clang -fsanitize= flags for optional ASan features.

Init-order and use-after-return modes can currently be enabled
by runtime flags. use-after-scope mode is not really working at the
moment.

The only problem I see is that users won't be able to disable extra
instrumentation for init-order and use-after-scope by a top-level Clang flag.
But this instrumentation was implicitly enabled for quite a while and
we didn't hear from users hurt by it.

llvm-svn: 210924

2014-06-13 17:53:44 +00:00

Alexander Potapenko

7aafd31dad

[ASan] Add -asan-module to the ASan .ll tests.

After the -asan pass had been split into -asan (function-level) and -asan-module (module-level) some of the
tests have silently stopped working, because they didn't instrument the globals anymore.
We've decided to have every test using both passes, irrespective of the presence of globals in it.

llvm-svn: 204335

2014-03-20 11:16:34 +00:00

Kostya Serebryany

530e207d8a

[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

llvm-svn: 197907

2013-12-23 14:15:08 +00:00

3 Commits