Commit Graph

4 Commits

Author SHA1 Message Date
Naomi Musgrave e50cb9b9c8 Fix previous commit: poison only class members, simpler tests
Summary: Poisoning applied to only class members, and before dtors for base class invoked

Implement poisoning of only class members in dtor, as opposed to also
poisoning fields inherited from base classes. Members are poisoned
only once, by the last dtor for a class. Skip poisoning if class has
no fields.
Verify emitted code for derived class with virtual destructor sanitizes
its members only once.
Removed patch file containing extraneous changes.

Reviewers: eugenis, kcc

Differential Revision: http://reviews.llvm.org/D11951


Simplified test cases for use-after-dtor

Summary: Simplified test cases to focus on one feature at time.
Tests updated to align with new emission order for sanitizing
callback.

Reviewers: eugenis, kcc

Differential Revision: http://reviews.llvm.org/D12003

llvm-svn: 244933
2015-08-13 18:35:11 +00:00
Naomi Musgrave 522168f7b8 Revert "Implement poisoning of only class members in dtor, as opposed to also poisoning fields inherited from base classes."
This reverts commit 8dbbf3578a9a5d063232b59e558e5fe46e2cd42c.
Rolled back due to buildbot failures on 'ninja check-clang'.

llvm-svn: 244820
2015-08-12 22:07:24 +00:00
Naomi Musgrave 9bd83fd465 Implement poisoning of only class members in dtor, as opposed to also poisoning fields inherited from base classes.
Verify emitted code for derived class with virtual destructor sanitizes its members only once.
Changed emission order for dtor callback, so only the last dtor for a class emits the sanitizing callback, while ensuring that class members are poisoned before base class destructors are invoked.
Skip poisoning of members, if class has no fields.
Removed patch file containing extraneous changes.

Summary: Poisoning applied to only class members, and before dtors for base class invoked

Reviewers: eugenis, kcc

Differential Revision: http://reviews.llvm.org/D11951

llvm-svn: 244819
2015-08-12 21:37:40 +00:00
Naomi Musgrave bb4df94faa Dtor callback emitted when msan attribute not repressed for this function.
Summary: In addition to checking compiler flags, the front-end also examines the attributes of the destructor definition to ensure that the SanitizeMemory attribute is attached.

Reviewers: eugenis, kcc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D11727

refactored test into new file, revised how function attribute examined

modified test to examine default dtor with and without attribute

removed attribute check

llvm-svn: 243912
2015-08-03 22:53:11 +00:00