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285 Commits

Author SHA1 Message Date
Kostya Serebryany 0afbb325b6 [tsan] make the 64-bit allocator build (but not work) in 32-bit mode to simplify the code and test structure and allow further refactoring 
llvm-svn: 169361
 2012-12-05 07:11:47 +00:00
Alexander Potapenko 0a4e0f6d35 Fix a use-after-unmap bug in /proc/self/maps caching. The cached buffer was occasionally deleted in the MemoryMappingLayout destructor. 
llvm-svn: 169335
 2012-12-04 23:30:00 +00:00
Kostya Serebryany 7436d95c9c [tsan] test the allocator with CompactSizeClassMap 
llvm-svn: 169270
 2012-12-04 14:39:51 +00:00
Kostya Serebryany f299288f55 [tsan] minor interface refactoring 
llvm-svn: 169267
 2012-12-04 14:15:17 +00:00
Kostya Serebryany 5e6f833bdd [tsan] refactor the allocator tests to allow testing other flavours of the allocator (add templates) 
llvm-svn: 169264
 2012-12-04 13:59:22 +00:00
Kostya Serebryany 077f88045e [tsan] refactoring and comment changes in sanitizer_common/sanitizer_allocator{,64}.h. No functionality change 
llvm-svn: 169234
 2012-12-04 07:54:41 +00:00
Alexander Potapenko e2b6d08459 Use a struct to hold the /proc/self/maps buffer on Linux. 
llvm-svn: 169155
 2012-12-03 21:21:22 +00:00
Kostya Serebryany 214b715061 [asan] two more bits for __sparc__ 
llvm-svn: 169141
 2012-12-03 18:39:21 +00:00
Kostya Serebryany 485f7b4a70 [tsan] add CompactSizeClassMap as an alternative (more compact) size class map. Not used yet. 
llvm-svn: 169128
 2012-12-03 15:00:33 +00:00
Kostya Serebryany dab61684ef [tsan] remove unused InternalAllocBlock as part of larger refactoring 
llvm-svn: 169123
 2012-12-03 11:57:01 +00:00
Dmitry Vyukov e982a1d368 tsan: describe global vars (module+offset for now) 
llvm-svn: 169122
 2012-12-03 11:45:34 +00:00
Alexander Potapenko 7811425843 Add caching to the MemoryMappingLayout class on Linux. This is necessary for the cases when a sandbox prevents ASan from reading the mappings 
from /proc/self/maps.
The mappings are currently being cached on each access to /proc/self/maps. In the future we'll need to add an API that allows the client to notify ASan about the sandbox.

llvm-svn: 169076
 2012-12-01 02:39:45 +00:00
Dmitry Vyukov ad9c530f7c tsan: add sanity checks into memory allocator 
llvm-svn: 169015
 2012-11-30 17:26:50 +00:00
Dmitry Vyukov e1a7f338a3 tsan: dynamic history size 
introduces history_size parameter that can be used to control trace size at startup

llvm-svn: 168786
 2012-11-28 12:19:50 +00:00
Dmitry Vyukov 2429b02770 tsan: move traces from tls into dedicated storage at fixed address 
helps to reduce tls size (it's weird to have multi-MB tls)
will help with dynamically adjustable trace size

llvm-svn: 168783
 2012-11-28 10:35:31 +00:00
Kostya Serebryany df198db1aa [asan/tsan] get rid of kPageSize completely in favor of GetPageSizeCached(). This makes the code friendly to more platforms 
llvm-svn: 168537
 2012-11-24 05:03:11 +00:00
Kostya Serebryany f22c697f58 [asan] get rid of some of the uses of kPageSize. The intent is to get rid of it completely to support platforms with multiple possible page sizes. 
llvm-svn: 168517
 2012-11-23 15:38:49 +00:00
Dmitry Vyukov 35437032be tsan: better error message for OOM 
llvm-svn: 168491
 2012-11-22 08:42:01 +00:00
Kostya Serebryany 8bc5421ba0 [asan] get rid of kPageSizeBits 
llvm-svn: 168426
 2012-11-21 13:31:07 +00:00
Evgeniy Stepanov 979a1e7352 Allow PopStackFrames leave the stack empty. 
llvm-svn: 168425
 2012-11-21 13:00:04 +00:00
Kostya Serebryany 734f1eb5f4 [asan/tsan] do not use __WORDSIZE macro, as it is glibc-private thing. Instead, define our own SANITIZER_WORDSIZE 
llvm-svn: 168424
 2012-11-21 12:38:58 +00:00
Alexey Samsonov 3a3488e4e1 [Sanitizer] replace while with internal_memset to make sure compiler won't replace it with library memset 
llvm-svn: 168422
 2012-11-21 11:12:57 +00:00
Kostya Serebryany 87e0464bfb [asan] better support for powerpc and sparc targets (thanks to H.J. Liu and David Miller) 
llvm-svn: 168358
 2012-11-20 08:57:26 +00:00
Kostya Serebryany 46de580003 [asan] more support for powerpc, patch by Peter Bergner 
llvm-svn: 168356
 2012-11-20 07:00:42 +00:00
Kostya Serebryany 386e2d853b [asan] support x32 mode in the fast stack unwinder. Patch by H.J. Lu 
llvm-svn: 168306
 2012-11-19 10:31:00 +00:00
Kostya Serebryany cb9f62189b [asan] support PowerPC and SPARC in sanitizer_linux.cc 
llvm-svn: 168301
 2012-11-19 07:53:36 +00:00
Richard Smith 05dce7e644 -fsanitize=undefined: Switch to using sanitizer_common for output. This gets us much closer to not depending on any system headers. 
llvm-svn: 167888
 2012-11-13 23:42:05 +00:00
Kostya Serebryany 1f8922cf71 [asan] use #if defined __x86_64__ instead of #if __WORDSIZE == 64 in sanitizer_linux.cc 
llvm-svn: 167883
 2012-11-13 23:13:17 +00:00
Alexey Samsonov ae9b18b607 [Sanitizer] add sanity checks for communication with external symbolizer 
llvm-svn: 167617
 2012-11-09 14:45:30 +00:00
Alexey Samsonov c463f3077e [Sanitizer] try to fix Windows bot - include stdlib.h for abort/_exit functions 
llvm-svn: 167577
 2012-11-08 13:08:41 +00:00
Dmitry Vyukov da78be74f3 tsan: slightly relax requirements for lazy shadow memory (can overlap and may not be properly aligned) 
it's problematic on windows where allocation granularity is much larger than page size

llvm-svn: 167466
 2012-11-06 16:48:46 +00:00
Dmitry Vyukov e86c632015 tsan: fix debug output 
llvm-svn: 167463
 2012-11-06 15:54:34 +00:00
Dmitry Vyukov a0be3e2c68 tsan: better diagnostics for failed mmap() 
llvm-svn: 167462
 2012-11-06 15:39:16 +00:00
Dmitry Vyukov 0ff6d2dd6c tsan: windows: less includes, better diagnostics for failed VirtualAlloc(), implement sched_yield() 
llvm-svn: 167452
 2012-11-06 13:19:59 +00:00
Dmitry Vyukov 2817639411 tsan: define missing compier macros for windows 
llvm-svn: 167450
 2012-11-06 12:54:16 +00:00
Dmitry Vyukov e9bafdf5b8 tsan: fix non-msvc windows build 
llvm-svn: 167449
 2012-11-06 12:50:13 +00:00
Dmitry Vyukov 04dd4b7349 tasn: improve sanitizer_internal_defs.h 
The file uses namespaces and extern "LANG", so it's kinda senseless to use #ifdef __cplusplus

llvm-svn: 167448
 2012-11-06 12:49:22 +00:00
Dmitry Vyukov e6b5a696e3 tsan: fix windows build 
__declspec is not _WIN32, it's _MSC_VER

llvm-svn: 167447
 2012-11-06 12:47:42 +00:00
Alexey Samsonov 58358897a3 [Sanitizer] Add internal_isatty to sanitizer_libc and PrintsToTty to determine whether error reports are printed to terminal 
llvm-svn: 167298
 2012-11-02 15:18:34 +00:00
Alexey Samsonov f7a24c4e2b [Sanitizer] fix printf unittest on 32-bit arch 
llvm-svn: 167297
 2012-11-02 14:28:17 +00:00
Alexey Samsonov 008274440a [Sanitizer] move unit test for Printf from tsan to sanitizer_common 
llvm-svn: 167296
 2012-11-02 12:36:11 +00:00
Alexey Samsonov ad9d65feb8 [TSan] finally remove TsanPrintf in favor of Printf from sanitizer_common 
llvm-svn: 167294
 2012-11-02 12:17:51 +00:00
Alexey Samsonov 20ba98fdb1 [Sanitizer] Use kStderrFd constant instead of hardcoded 2 
llvm-svn: 167291
 2012-11-02 09:38:47 +00:00
Alexey Samsonov fd67c83e7e [Sanitizer]: add __sanitizer_set_report_fd function to alter file descriptor for error reports 
llvm-svn: 167290
 2012-11-02 09:23:36 +00:00
Alexander Potapenko dda4f0b593 Fix a compiler warning in internal_memmove. 
llvm-svn: 166775
 2012-10-26 13:47:36 +00:00
Alexander Potapenko 2a1925852d Fix the internal_memmove() implementation that used to skip src[0] if dst < src. 
llvm-svn: 166774
 2012-10-26 13:24:20 +00:00
Alexey Samsonov b9fdf27357 [Sanitizer] fall back to online symbolizer if user-provided callback failed 
llvm-svn: 166177
 2012-10-18 11:46:22 +00:00
Alexey Samsonov 68791d162a [Sanitizer] symbolizer: increase the maximal number of shared libraries to 16K 
llvm-svn: 166098
 2012-10-17 13:12:23 +00:00
Kostya Serebryany 278bd2e3a3 [asan] fix lint 
llvm-svn: 166006
 2012-10-16 04:50:32 +00:00
Alexander Potapenko 7b03290c43 Implement internal_memmove. 
Use internal_memmove() and internal_memcpy() in the memcpy() and memmove() wrappers
when building the dynamic runtime (OS X only), to work around a bug in resolver functions wrapping.
See also http://code.google.com/p/address-sanitizer/issues/detail?id=116

llvm-svn: 165939
 2012-10-15 15:34:41 +00:00
Alexey Samsonov 83ecabe6e6 [Sanitizer] Remove unneeded returns after UNIMPLEMENTED macro 
llvm-svn: 165493
 2012-10-09 08:51:08 +00:00
Alexey Samsonov 3a0a88fe0a [Sanitizer] Add UNREACHABLE(msg) macro 
llvm-svn: 165492
 2012-10-09 08:42:07 +00:00
Kostya Serebryany cb13fff13d [asan] properly report mmap failure 
llvm-svn: 165214
 2012-10-04 07:21:09 +00:00
Alexander Potapenko 77c0ac2336 Do not patch the instruction address when symbolizing the reports. 
Instead, print the correct address at runtime.

llvm-svn: 165018
 2012-10-02 15:42:24 +00:00
Alexey Samsonov 30c01f25f1 [Sanitizer] fix line width 
llvm-svn: 165009
 2012-10-02 14:09:20 +00:00
Evgeniy Stepanov 49e8576a09 [*San]: handle EINTR. 
llvm-svn: 165006
 2012-10-02 13:41:40 +00:00
Dmitry Vyukov 56faa551b9 tsan: fix mac build 
llvm-svn: 165004
 2012-10-02 12:58:14 +00:00
Alexey Samsonov e29c6731aa [Sanitizer/ASan] Simplify the code that prints and symbolizes stack traces. Fall back to module+offset if user-provided symbolizer failed. Use weak function __asan_symbolize instead of __asan_set_symbolize_callback in ASan interface, so that we're able to symbolize reports for errors that happen before the main() is called, for example, during module initialization. 
llvm-svn: 165000
 2012-10-02 12:11:17 +00:00
Dmitry Vyukov 27d5b37c38 tsan: output tid's in reports 
llvm-svn: 164998
 2012-10-02 11:52:05 +00:00
Evgeniy Stepanov cb9cf0f907 Add a missing const qualifier. 
llvm-svn: 164773
 2012-09-27 13:21:08 +00:00
Alexey Samsonov a555b3faf4 [ASan] Apply some ASan-relevant pieces of patch by Ruben Van Boxem. In the same time, remove ASan from CMake build on Windows after conversation with Timur. We don't want to support building ASan on Windows until it is in a working state. 
llvm-svn: 164486
 2012-09-24 11:43:40 +00:00
Alexey Samsonov 5a42ac5b0e [Sanitizer] update lint checker script 
llvm-svn: 164111
 2012-09-18 07:26:51 +00:00
Kostya Serebryany 0a31ed1417 [tsan] fix the tsan allocator to handle any alignment 
llvm-svn: 164107
 2012-09-18 06:00:59 +00:00
Alexey Samsonov 97ca306641 [Sanitizer] Hoist functions to get/set stack size and re-exec from memory-sanitizer branch to sanitizer_common 
llvm-svn: 164020
 2012-09-17 09:12:39 +00:00
Dmitry Vyukov 4d743f5346 tsan: reserve msb in stack depot id's (required for msan) 
llvm-svn: 164010
 2012-09-17 03:14:15 +00:00
Kostya Serebryany 5b0a8f3f53 [asan] fix the va_arg usage 
llvm-svn: 163879
 2012-09-14 06:52:46 +00:00
Kostya Serebryany 45d849c4bd [asan] add asan option log_path=PATH to let users redirect asan reports to a file PATH.PID instead of stderr 
llvm-svn: 163872
 2012-09-14 04:35:14 +00:00
Alexey Samsonov 3d53c4ecf6 [Sanitizer] Please Android build. Re-check the availability of -Wno-variadic-macros flag. 
llvm-svn: 163688
 2012-09-12 08:06:15 +00:00
Alexey Samsonov 694633e19b [Sanitizer] first effort to start building ASan runtime with -Werror in CMake build 
llvm-svn: 163686
 2012-09-12 07:38:47 +00:00
Alexey Samsonov 100150f59d [Sanitizer] test 64-bit allocator only on suitable targets 
llvm-svn: 163615
 2012-09-11 12:19:18 +00:00
Evgeniy Stepanov 1a8f8fa6c0 CMake build rules for ASan Android runtime and tests. 
llvm-svn: 163613
 2012-09-11 11:55:45 +00:00
Alexey Samsonov 894069796e [Sanitizer] Add new lit testsuite: check-sanitizer that runs unit tests for sanitizer_common runtime (shared between ASan and TSan) 
llvm-svn: 163610
 2012-09-11 10:50:32 +00:00
Alexey Samsonov c21f901b2f [Sanitizer] fix warnings reported by gcc. Update the list of targets to check lint for 
llvm-svn: 163608
 2012-09-11 10:31:28 +00:00
Alexey Samsonov fcbc97a13f [Sanitizer] remove custom Die/CheckFailed from allocator testlib 
llvm-svn: 163604
 2012-09-11 09:48:52 +00:00
Alexey Samsonov 5c6b93bc33 [Sanitizer] Get rid of dependency between sanitizer_common and asan/tsan runtimes: implement tool-specific Die and CheckFailed functions via callbacks 
llvm-svn: 163603
 2012-09-11 09:44:48 +00:00
Evgeniy Stepanov 6f66ed1329 [asan] There is no __libc_malloc on Android. 
llvm-svn: 163498
 2012-09-10 10:18:49 +00:00
Kostya Serebryany f9caa28ccf [asan] increase max stack size to 256 (+test) 
llvm-svn: 163308
 2012-09-06 10:57:03 +00:00
Alexey Samsonov 3ebf2fa654 [Sanitizer] remove unused field 
llvm-svn: 163296
 2012-09-06 08:47:38 +00:00
Alexey Samsonov f6d2125829 [Sanitizer] implement readlink as syscall on Linux 
llvm-svn: 163213
 2012-09-05 14:48:24 +00:00
Kostya Serebryany 4d45b9b784 [asan] added tests for asan-initialization-order, patch by Reid Watson 
llvm-svn: 163207
 2012-09-05 09:07:02 +00:00
Alexey Samsonov d83ccd067d [ASan] hoist more compile flags to SANITIZER_COMMON_CFLAGS var and add the rest of flags/defs from old Makefile to CMake 
llvm-svn: 163204
 2012-09-05 09:00:03 +00:00
Alexey Samsonov ceffb021c5 [Sanitizer] Remove implicit conversion of InternalScopedBuffer<T> to T* 
llvm-svn: 163197
 2012-09-05 07:23:44 +00:00
Alexey Samsonov 6f696f4d17 [Sanitizer] Support for reading inlined frames from llvm-symbolizer 
llvm-svn: 163140
 2012-09-04 15:34:43 +00:00
Dmitry Vyukov 179e5ddae1 tsan: fix windows build (2) 
llvm-svn: 162997
 2012-08-31 14:11:33 +00:00
Dmitry Vyukov fa90fa357e tsan: fix windows build (1) 
llvm-svn: 162996
 2012-08-31 14:01:33 +00:00
Dmitry Vyukov ef8d1944b8 tsan: improve stack depot 
llvm-svn: 162993
 2012-08-31 12:47:44 +00:00
Kostya Serebryany d19c8cb2cc [tsan] locate the auxilary space for tsan's Allocator64 after the main region, not before. This simplifies the shadow mappings 
llvm-svn: 162991
 2012-08-31 12:41:00 +00:00
Alexey Samsonov 3222dad6e3 [Sanitizer] fix overloaded operator error 
llvm-svn: 162990
 2012-08-31 11:43:01 +00:00
Alexey Samsonov 704f71616d [compiler-rt] Move draft code for llvm-symbolizer to compiler-rt/utils/llvm-symbolizer after chandlerc's suggestion 
llvm-svn: 162988
 2012-08-31 11:12:10 +00:00
Alexey Samsonov e70ed73d1f [Sanitizer] Remove some calls to libc malloc from symbolizer 
llvm-svn: 162987
 2012-08-31 11:07:52 +00:00
Alexey Samsonov 329eae86ef [Sanitizer] Resolve fixme: break dependency of sanitizer_common tests on TSan RTL 
llvm-svn: 162984
 2012-08-31 10:15:44 +00:00
Alexey Samsonov 79b36285ca [Sanitizer] Make lint checking a standalone script in sanitizer_common 
llvm-svn: 162982
 2012-08-31 08:36:36 +00:00
Dmitry Vyukov b244c46c66 tsan: speed up allocator64 GetBlockBegin() 
llvm-svn: 162908
 2012-08-30 13:55:43 +00:00
Dmitry Vyukov 191f2f7cdb tsan: use stack depot to describe heap blocks 
llvm-svn: 162902
 2012-08-30 13:02:30 +00:00
Dmitry Vyukov f4792878c4 asan/tsan: first version of "stack depot" 
llvm-svn: 162897
 2012-08-30 10:02:48 +00:00
Kostya Serebryany d0d96bfb86 [asan/tsan] use InternalScopedBuffer instead of stack arrays. Use mmap inseted of InternalAlloc in InternalScopedBuffer 
llvm-svn: 162834
 2012-08-29 08:40:36 +00:00
Chandler Carruth 1aa4fef601 Relocate the external headers provided by ASan and the common sanitizer 
library.

These headers are intended to be available to user code when built with
AddressSanitizer (or one of the other sanitizer's in the future) to
interface with the runtime library. As such, they form stable external
C interfaces, and the headers shouldn't be located within the
implementation.

I've pulled them out into what seem like fairly obvious locations and
names, but I'm wide open to further bikeshedding of these names and
locations.

I've updated the code and the build system to cope with the new
locations, both CMake and Makefile. Please let me know if this breaks
anyone's build.

The eventual goal is to install these headers along side the Clang
builtin headers when we build the ASan runtime and install it. My
current thinking is to locate them at:

  <prefix>/lib/clang/X.Y/include/sanitizer/common_interface_defs.h
  <prefix>/lib/clang/X.Y/include/sanitizer/asan_interface.h
  <prefix>/lib/clang/X.Y/include/sanitizer/...

But maybe others have different suggestions?

Fixing the style of the #include between these headers at least unblocks
experimentation with installing them as they now should work when
installed in these locations.

llvm-svn: 162822
 2012-08-29 02:27:54 +00:00
Chandler Carruth c1c9d5818f Some flag cleanup for the sanitizer runtimes. 
This hoists most of the CFLAGS into a common variable. It also adds
detection for -Wno-c99-extensions and uses it to silence a pile of
warnings.

Finally, it switches to the proper flag -rdynamic.

With this, the cmake build is warning free on my bootstrap Linux build.

llvm-svn: 162809
 2012-08-29 00:13:11 +00:00
Kostya Serebryany 66a37f3aef [asan] one more fix for windows build 
llvm-svn: 162762
 2012-08-28 15:25:07 +00:00
Kostya Serebryany 3a6af66a0e [asan] fix the cmake build (hopefully) 
llvm-svn: 162760
 2012-08-28 14:48:28 +00:00