diff options
| author | Filipe Cabecinhas <me@filcab.net> | 2018-02-12 11:49:02 +0000 |
|---|---|---|
| committer | Filipe Cabecinhas <me@filcab.net> | 2018-02-12 11:49:02 +0000 |
| commit | 4ba5817b8b7fe5f136c8f95287e02eeaa69d630b (patch) | |
| tree | 0dfd492b46617b08674905f10015c76e903a7655 /llvm/lib/Target | |
| parent | cd5eb00e8ba9f51a608c0252af31dcb6a911b731 (diff) | |
| download | bcm5719-llvm-4ba5817b8b7fe5f136c8f95287e02eeaa69d630b.tar.gz bcm5719-llvm-4ba5817b8b7fe5f136c8f95287e02eeaa69d630b.zip | |
ASan+operator new[]: Add an option for more thorough operator new[] cookie poisoning
Summary:
Right now clang is skipping array cookie poisoning for any operator
new[] which is not part of the set of replaceable global allocation
functions.
This commit adds a flag to tell clang to poison all operator new[]
cookies.
A previous review was poisoning all array cookies unconditionally, but
there is an edge case which would stop working under ASan (a custom
operator new[] saves whatever pointer it returned, and then accesses
it).
This newer revision adds a command line argument to toggle this feature.
Original revision: https://reviews.llvm.org/D41301
Compiler-rt test revision with an explanation of the edge case: https://reviews.llvm.org/D41664
Reviewers: rjmccall, kcc, rsmith
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D43013
llvm-svn: 324884
Diffstat (limited to 'llvm/lib/Target')
0 files changed, 0 insertions, 0 deletions
