llvm-svn: 204124

llvm-svn: 204115

llvm-svn: 204044

[sanitizer] make the deadlock detector print 2*N stack traces on lock-order-inversion with N locks (i.e. print stack traces for both lock acquisitions in every edge in the graph). More improvements to follow

llvm-svn: 204042

llvm-svn: 204037

llvm-svn: 204035

llvm-svn: 204034

Make behavior introduced in r202820 conditional (under legacy_pthread_cond flag).
The new issue that we've hit with the satellite pthread_cond_t struct is
that pthread_condattr_getpshared does not work (satellite data is not shared between processes).
The idea is that most processes do not use pthread 2.2.5.
The rare ones that use (2.2.5 is dated by 2002) must specify legacy_pthread_cond=1
on their own risk.

llvm-svn: 204032

[sanitizer] in bitvector-based deadlock detector split onLock into onLockBefore and onLockAfter hooks

llvm-svn: 203796

llvm-svn: 203793

llvm-svn: 203773

llvm-svn: 203647

llvm-svn: 203238

llvm-svn: 203121

Get rid of the context argument in UNPOISON_PARAM and INITIALIZE_RANGE.
Get rid of all the thread-local contexts in interceptors.

llvm-svn: 203119

this is required to fix:
https://code.google.com/p/go/issues/detail?id=7460

llvm-svn: 203116

one way or another it must present in the process from the beginning

llvm-svn: 203111

llvm-svn: 203109

llvm-svn: 202977

intercept pthread_cond (it is required to properly track state of mutexes)
detect cycles in mutex graph

llvm-svn: 202975

llvm-svn: 202972

llvm-svn: 202947

it's LD_PRELOAD-able

llvm-svn: 202843

llvm-svn: 202826

llvm-svn: 202813

llvm-svn: 202708

llvm-svn: 202704

llvm-svn: 202505

Introduce DDetector interface between the tool and the DD itself.
It will help to experiment with other DD implementation,
as well as reuse DD in other tools.

llvm-svn: 202485

[sanitizer] do not acquire a global mutex in deadlock detector when dealing with Unlock (it is essentially a thread-local operation)

llvm-svn: 202401

this fixes obscure false positives
see the comments and the test for details

llvm-svn: 202400

we must go deeper!

llvm-svn: 202365

can't build anything here.

llvm-svn: 202297

llvm-svn: 202153

llvm-svn: 202132

llvm-svn: 202128

llvm-svn: 202120

[sanitizer] fix epoch handling in deadlock detector (before the fix, we could have had edges from locks in the previous epoch to locks in the current epoch)

llvm-svn: 202118

llvm-svn: 202022

AdjustStackSizeLinux() is used in Lsan, Tsan and Msan non-Linux-specific code so it seems it should have more generic name and moved to a common scope.
Renamed to AdjustStackSize.
Patch by Viktor Kutuzov.

llvm-svn: 202011