1) Don't start external symbolizer subprocess until we actually try to
symbolize anything.
2) Allow to turn off external symbolizer by providing empty ?SAN_SYMBOLIZER_PATH
environment variable.
llvm-svn: 195771
No longer allow interceptors to be called during initialization, use the preinit
array (instead of initializing at the first call to an intercepted function) and
adopt the calloc() hack from ASan.
llvm-svn: 195642
Summary:
Implement TwoLevelByteMap and use it for the internal allocator on 64-bit.
This reduces bss on 64-bit by ~8Mb because we don't use FlatByteMap on 64-bits any more.
Dmitry, please check my understanding of atomics.
Reviewers: dvyukov
Reviewed By: dvyukov
CC: samsonov, llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2259
llvm-svn: 195637
Performance improvement. Also, the allocator was using CompactSizeClassMap for
no good reason, so I switched it to DefaultSizeClassMap.
llvm-svn: 195570
Summary:
Call real pthread_attr_getstack instead of the interceptor
when we do intercept pthread_attr_getstack.
Reviewers: samsonov, eugenis
Reviewed By: samsonov
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2237
llvm-svn: 195441
Some linux headers are broken on older kernels.
Instead of depending on the constants and types from such headers directly,
we provide our own definitions and then verify them with compile-time
assertions. This makes the dependency on the headers test-only and would allow
switching to some other way of testing on older kernels, or even disable the
tests as the last resort (after all, kernel interfaces are supposed to be
stable).
llvm-svn: 195427
- Introduce several new custom glibc wrappers
- Implement some of the not yet implemented wrappers
- Refactor and extend the tests
- Add script to make sure all declare custom glibc wrappers are implemented & tested.
Patch by Lorenzo Martignoni!
Differential Revision: http://llvm-reviews.chandlerc.com/D2234
llvm-svn: 195381
the tests produce episodic flakes
the hypothesis is that it's due to our "racy" race detection algorithm
sleeps should remove the flakes
llvm-svn: 195351
(-Wl,-syslibroot was accidentally overridden by -isysroot from Clang on OSX 10.9)
-isysroot is a Clang/LLVM-GCC-specific option, but hosting libsanitizer for LLVM
with GCC on Darwin shouldn't work anyway, because of the missing blocks support.
llvm-svn: 195132
- Add a bunch of glibc functions to the ABI list
- Group similar functions in the ABI
Patch by Lorenzo Martignoni!
Differential Revision: http://llvm-reviews.chandlerc.com/D2185
llvm-svn: 195110
Dmitry Vyukov