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Author SHA1 Message Date
Vedant Kumar 3ac1d4dc10 [test] Use a helper macro to refer to MAP_ANON (NFC) 
Some of our internal bots use old SDK's which don't define MAP_ANON.
Use a helper macro to pass the right flag into mmap().

llvm-svn: 287833
 2016-11-23 22:23:42 +00:00
Dmitry Vyukov 9c5bab23ee tsan: fix build after 287632 
1. Mac does not have MAP_32BIT.
Define it to 0 if it is not defined.

2. We are lacking nolibc stub for ListOfModules::init.
Add it.

llvm-svn: 287634
 2016-11-22 11:09:35 +00:00
Dmitry Vyukov 5c5d4766f8 tsan: switch libignore from /proc/self/maps to dl_iterate_phdr 
/proc/self/maps can't be read atomically, this leads to episodic
crashes in libignore as it thinks that a module is loaded twice.
See the new test for an example.
dl_iterate_phdr does not have this problem.
Switch libignore to dl_iterate_phdr.

llvm-svn: 287632
 2016-11-22 09:49:11 +00:00