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93 Commits

Author SHA1 Message Date
Peter Collingbourne 6f4be19b57 [nolibc] Change internal syscall API to remove reliance on libc's errno. 
This change moves to a model where the error value of a system call is
potentially contained in the return value itself rather than being
implicit in errno.  The helper function internal_iserror can be used
to extract the error value from a return value.  On platforms other
than Linux/x86_64 this still uses errno, but other platforms are free
to port their error handling to this new model.

Differential Revision: http://llvm-reviews.chandlerc.com/D756

llvm-svn: 181436
 2013-05-08 14:43:49 +00:00
Sergey Matveev 0d8cc4a2d2 [sanitizer] Fix build breakage in Go TSan. 
llvm-svn: 181428
 2013-05-08 13:59:30 +00:00
Sergey Matveev af179b8d63 [sanitizer] Move GetStackTrace from ASan to sanitizer_common. 
llvm-svn: 181424
 2013-05-08 12:45:55 +00:00
Alexey Samsonov a0e28a7aaa [Sanitizer] Kill the remainders of platform defines in favor of SANITIZER_ defines 
llvm-svn: 178627
 2013-04-03 07:24:35 +00:00
Alexander Potapenko f8109dd0f8 [libsanitizer] Unmapping the old cache partially invalidates the memory layout, so add 
a flag to skip cache update for cases when that's unacceptable (e.g. lsan).

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178000
 2013-03-26 10:34:37 +00:00
Evgeniy Stepanov 0af672326a [sanitizer] Replace more platform checks with SANITIZER_ constants. 
llvm-svn: 177400
 2013-03-19 14:33:38 +00:00
Alexey Samsonov 06d3aa4884 [Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev. 
llvm-svn: 176931
 2013-03-13 06:51:02 +00:00
Alexander Potapenko 92cc1a6d24 [ASan] don't call strerr from functions that map memory, since this results in malloc(). 
llvm-svn: 176800
 2013-03-11 10:21:28 +00:00
Alexey Samsonov aadd1f2ad6 [Sanitizer] use raw syscall instead of _exit() function on Linux 
llvm-svn: 175622
 2013-02-20 13:54:32 +00:00
Alexey Samsonov 9211bd33ec [Sanitizer] Make temporary filename depend on user ID 
llvm-svn: 175424
 2013-02-18 07:17:12 +00:00
Alexey Samsonov 39313b780d [Sanitizer] make internal_open have the same interface as libc version 
llvm-svn: 174187
 2013-02-01 15:58:46 +00:00
Kostya Serebryany bda64b4d40 [sanitizer] make the error messages from sanitizer_common contain the actual tool name 
llvm-svn: 174059
 2013-01-31 14:11:21 +00:00
Dmitry Vyukov 0632dd410c tsan: fix the message (tsan is not asan) 
llvm-svn: 173784
 2013-01-29 09:39:58 +00:00
Kostya Serebryany 6f604b5007 [asan/tsan] when unmapping a chunk of user memory, apply madvise(MADV_DONTNEED) to the corresponding chunk of shadow memory. Also update sanitizer_allocator64_testlib.cc 
llvm-svn: 171144
 2012-12-27 07:37:24 +00:00
Kostya Serebryany 9806628792 [sanitizer] introduce MmapFixedOrDie and use it in SizeClassAllocator64 
llvm-svn: 170099
 2012-12-13 05:36:00 +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
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 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
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
Kostya Serebryany cb13fff13d [asan] properly report mmap failure 
llvm-svn: 165214
 2012-10-04 07:21:09 +00:00
Dmitry Vyukov 56faa551b9 tsan: fix mac build 
llvm-svn: 165004
 2012-10-02 12:58:14 +00:00
Dmitry Vyukov 27d5b37c38 tsan: output tid's in reports 
llvm-svn: 164998
 2012-10-02 11:52:05 +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
Alexey Samsonov cc62211fbf [Sanitizer] Rename ProcessMaps to MemoryMappingLayout and fix Windows build by providing stub implementation 
llvm-svn: 162671
 2012-08-27 13:48:48 +00:00
Kostya Serebryany ad855e9438 [asan] better diagnostics for mmap failure 
llvm-svn: 161874
 2012-08-14 15:18:40 +00:00
Dmitry Vyukov 03d32ecd4f tsan: Go language support 
llvm-svn: 159754
 2012-07-05 16:18:28 +00:00
Alexey Samsonov 961276af26 [Sanitizer] Extend a symbolizer code. Implemented for Linux only. Use dl_iterate_phdr to get virtual addresses of mapped module sections. To symbolize an address from a module, map this module to memory and obtain pointers to debug info sections. Later these pointers can be passed to constructor of DWARF context-in-memory from LLVM DebugInfo lib. 
llvm-svn: 159652
 2012-07-03 08:24:14 +00:00
Dmitry Vyukov e8cee12ce2 tsan/asan: first try on msvc atomics 
llvm-svn: 159443
 2012-06-29 18:00:38 +00:00
Kostya Serebryany d32d537d63 [asan] get rid of libc's sscanf as it causes infinite recursion on Fedora. 
llvm-svn: 159424
 2012-06-29 13:05:36 +00:00
Alexey Samsonov cf7d233ac0 [TSan] kill some linux-specific code in favor of code in common runtime: reuse wrappers for mmap routines, ProcessMaps iterator, thread stack calculation 
llvm-svn: 158657
 2012-06-18 09:42:39 +00:00
Alexey Samsonov 58a3c58ec9 [Sanitizer] move different wrappers from TSan to common sanitizer runtime 
llvm-svn: 158655
 2012-06-18 08:44:30 +00:00
Alexey Samsonov 8c4dcd72e3 [Sanitizer] Use mmaped buffer in DumpProcessMaps to avoid large stack frames 
llvm-svn: 158502
 2012-06-15 07:41:23 +00:00
Alexey Samsonov 40e5128412 [Sanitizer] move ShadowRangeIsAvailable and several defines to common runtime 
llvm-svn: 158499
 2012-06-15 07:29:14 +00:00
Alexey Samsonov e4a889866d [Sanitizer] move atomic ops, min/max and sort to commnon runtime 
llvm-svn: 158496
 2012-06-15 07:00:31 +00:00
Alexey Samsonov 70afb91636 [Sanitizer] move more portability wrappers to common runtime: sleep, _exit, abort, atexit, pthread_self 
llvm-svn: 158493
 2012-06-15 06:37:34 +00:00
Alexey Samsonov ae1e171b72 [Sanitizer] move DumpProcessMap and DisableCoreDumper to common runtime 
llvm-svn: 158490
 2012-06-15 06:08:19 +00:00
Alexey Samsonov c70d1086f6 [Sanitizer] move rest of mmap routines to common sanitizer runtime 
llvm-svn: 158452
 2012-06-14 14:42:58 +00:00
Alexey Samsonov 40d5b772e5 [Sanitizer] Switch to common mmap/munmap routines in ASan run-time. 
llvm-svn: 158078
 2012-06-06 16:15:07 +00:00
Alexey Samsonov ee07290628 [Sanitizer] Move more functions/constants to sanitizer_common. 
llvm-svn: 158056
 2012-06-06 09:26:25 +00:00
Alexey Samsonov 5bbf8290a7 [Sanitizer] rename sanitizer_defs.h to sanitizer_internal_defs.h 
llvm-svn: 158001
 2012-06-05 14:25:27 +00:00
Alexey Samsonov 7ac77d6b29 [Sanitizer] add sanitizer_posix.cc. Move more various functions into sanitizer_libc: sscanf, munmap, memchr 
llvm-svn: 157994
 2012-06-05 09:49:25 +00:00