Commit Graph

18 Commits

Author SHA1 Message Date
Kamil Rytarowski 8b5d3ebcbe Msan, fixing DTLS_on_tls_get_addr signature empty implementation
Summary: No supported oses normally compiled that code (or not for a long time) probably never caught it.

Patch by: David CARLIER

Reviewers: vitalybuka, krytarowski

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D43502

llvm-svn: 325664
2018-02-21 04:16:45 +00:00
Vitaly Buka 7af8fa41d3 [compiler-rt] Replace VPrintf with VReport in sanitizer_tls_get_addr.cc
Summary:
Thread id will be added to VRerort. Having thread here is useful.
This is also common place for logging for all sanitizers, so I can use this in
common test.

Reviewers: kcc, alekseyshl

Subscribers: kubamracek, llvm-commits, dberris

Differential Revision: https://reviews.llvm.org/D35655

llvm-svn: 308578
2017-07-20 01:36:16 +00:00
Maxim Ostapenko e6b81315f7 Try to fix MAC buildbot after r299630
llvm-svn: 299632
2017-04-06 08:17:09 +00:00
Maxim Ostapenko 18afec1ba6 Try to fix windows buildbot after r299630
llvm-svn: 299631
2017-04-06 07:53:26 +00:00
Maxim Ostapenko fe863a6510 [lsan] Avoid segfaults during threads destruction under high load
This patch addresses two issues:

	* It turned out that suspended thread may have dtls->dtv_size == kDestroyedThread (-1)
	and LSan wrongly assumes that DTV is available. This leads to SEGV when LSan tries to
	iterate through DTV that is invalid.
	* In some rare cases GetRegistersAndSP can fail with errno 3 (ESRCH). In this case LSan
	assumes that the whole stack of a given thread is available. This is wrong because ESRCH
	can indicate that suspended thread was destroyed and its stack was unmapped. This patch
	properly handles ESRCH from GetRegistersAndSP in order to avoid invalid accesses to already
	unpapped threads stack.

Differential Revision: https://reviews.llvm.org/D30818

llvm-svn: 299630
2017-04-06 07:42:27 +00:00
Mohit K. Bhakkad 1d1493219c [Compiler-rt][MIPS] Correct Dynamic Thread Vector offset for MIPS
Reviewers: samsonov

Subscribers: dsanders, jaydeep, sagar, llvm-commits

Differential Revision: http://reviews.llvm.org/D17703

llvm-svn: 262303
2016-03-01 05:56:33 +00:00
Jay Foad 305586257c Implement some TLS support for PowerPC64.
Summary: This is enough to get the asan static_tls.cc test case working.

Reviewers: eugenis, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14574

llvm-svn: 252738
2015-11-11 15:37:47 +00:00
Evgeniy Stepanov 7f6290ca9a [sanitizer] Recognize static TLS in __tls_get_addr interceptor.
Current code tries to find the dynamic TLS header to the left of the
TLS block without checking that it's not a static TLS allocation.

llvm-svn: 237495
2015-05-16 00:34:15 +00:00
Evgeniy Stepanov 0b2d93c4f0 [sanitizer] Fix build on platforms where dtls support is disabled.
llvm-svn: 211684
2014-06-25 11:43:46 +00:00
Evgeniy Stepanov 7ad0bde843 [msan] Fix false positive on dynamic tls.
Use existing DTLS code in sanitizer_tls_get_addr.{h,cc} to unpoison DTLS
blocks both on allocation and deallocation.

https://code.google.com/p/memory-sanitizer/issues/detail?id=44

llvm-svn: 211683
2014-06-25 11:30:35 +00:00
Kostya Serebryany 498b18a01e [asan] try to harden __tls_get_addr interceptor against signals (no good test still); update the comment in a test.
llvm-svn: 206367
2014-04-16 09:07:27 +00:00
Kostya Serebryany 9f20c9b17c [asan] fix a leak in __tls_get_addr handler; introduce a run-time flag to disable this handler completely; remove a workaround for a bug fixed in glibc
llvm-svn: 205617
2014-04-04 09:10:58 +00:00
Dmitry Vyukov d8c2fbd57f tsan: another attempt to fix the tls_get_addr crash
llvm-svn: 202405
2014-02-27 15:07:45 +00:00
Dmitry Vyukov 46ebecc1fe tsan: work around known bug in libstdc++
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066

llvm-svn: 202403
2014-02-27 14:43:31 +00:00
Kostya Serebryany f6e085cf89 [sanitizer] make __tls_get_addr interceptor (more) AS-safe. No good test so far, will keep trying.
llvm-svn: 200734
2014-02-04 05:22:00 +00:00
Kostya Serebryany b22298af9a [asan] re-enable __tls_get_addr interceptor with a proper fix (use __attribute__((tls_model(initial-exec))))
llvm-svn: 200463
2014-01-30 09:25:48 +00:00
Kostya Serebryany 409d26ac5e [asan] disable __tls_get_addr interceptor while I am investigating why it causes trouble; few more debugging
llvm-svn: 200462
2014-01-30 09:00:42 +00:00
Kostya Serebryany 71788fac2a [asan] experimental intercetor for __tls_get_addr. So far it does nothing interesting, actual usage will come later. See https://groups.google.com/forum/#!topic/address-sanitizer/BfwYD8HMxTM for background
llvm-svn: 200384
2014-01-29 09:29:16 +00:00