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6 Commits

Author SHA1 Message Date
Yury Gribov 4646b11acf [asan] Improvements for asan deactivated mode: disable asan activation for runtime library on Linux, disable malloc checks. 
Reviewed in http://reviews.llvm.org/D6265

llvm-svn: 222732
 2014-11-25 07:10:30 +00:00
Evgeniy Stepanov 756e1c1e4b [asan] Reinitialize allocator quarantine on activation. 
This is covered by AddressSanitizer.UAF_* tests in asan_test
with start_deactivated=1.

llvm-svn: 200696
 2014-02-03 14:19:08 +00:00
Evgeniy Stepanov 01cd8ae204 [asan] Read extra flags from a system property on activation on Android. 
llvm-svn: 200550
 2014-01-31 14:36:55 +00:00
Evgeniy Stepanov 877bb8ba59 [asan] Fix a build warning on windows. 
llvm-svn: 199390
 2014-01-16 14:21:17 +00:00
Evgeniy Stepanov 364bfdf4c9 [asan] Fix a bunch of style issues. 
llvm-svn: 199380
 2014-01-16 13:17:13 +00:00
Evgeniy Stepanov c61623b170 [asan] Implement delayed activation of AddressSanitizer 
This change adds ASAN_OPTIONS=start_deactivated=1 flag. When present, ASan will
start in "deactivated" mode, with no heap poisoning, no quarantine, no stack
trace gathering, and minimal redzones. All this features come back when
__asan_init is called for the constructor of an instrumented library.

The primary use case for this feature is Android. Code itself is not
Android-specific, and this patch includes a Linux test for it.

llvm-svn: 199377
 2014-01-16 12:31:50 +00:00