6f4be19b57
[nolibc] Change internal syscall API to remove reliance on libc's errno.
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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
3704453368
[sanitizer] Fixed InitTlsSize for Android.
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llvm-svn: 181330
2013-05-07 16:29:26 +00:00
88d0c664ef
[sanitizer] Fixed includes in sanitizer_linux.cc for Android.
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llvm-svn: 181327
2013-05-07 15:38:53 +00:00
954c6ef10f
[sanitizer] Move GetThreadStackAndTls from TSan to sanitizer_common.
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Move this function to sanitizer_common because LSan uses it too. Also, fix a bug
where the TLS range reported for main thread was off by the size of the thread
descriptor from libc (TSan doesn't care much, but for LSan it's critical).
llvm-svn: 181322
2013-05-07 14:41:43 +00:00
517118e6b4
[sanitizer] Sanitizer __internal_*stat interface.
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With this change, __internal_*stat always expect a "struct stat *" argument.
This avoids stat/stat64 caller-side confusion (sanitizer_common tests already
made this mistake), and allows the use of __internal_fstat() as a drop-in
replacement for libc's fstat().
llvm-svn: 181311
2013-05-07 12:47:04 +00:00
b2151b8200
Revert r180599 "[sanitizer] Clear LD_PRELOAD when forking an external symbolizer."
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llvm-svn: 180602
2013-04-26 13:01:40 +00:00
3c8fbe1013
[sanitizer] Clear LD_PRELOAD when forking an external symbolizer.
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llvm-svn: 180599
2013-04-26 11:35:05 +00:00
f36c5a8431
Revert r180082 and add a test for SetEnv function
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llvm-svn: 180098
2013-04-23 12:49:12 +00:00
e7540e3561
[Sanitizer] Delete unused function
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llvm-svn: 180082
2013-04-23 08:18:09 +00:00
46b8665ea4
Remove InternalAlloc/InternalFree calls from StopTheWorld. Patch by Sergey Matveev.
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llvm-svn: 178855
2013-04-05 07:41:21 +00:00
a0e28a7aaa
[Sanitizer] Kill the remainders of platform defines in favor of SANITIZER_ defines
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llvm-svn: 178627
2013-04-03 07:24:35 +00:00
f8109dd0f8
[libsanitizer] Unmapping the old cache partially invalidates the memory layout, so add
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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
510ad11800
tsan: add SetEnv() function that can be used in frontends
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llvm-svn: 177857
2013-03-25 09:56:45 +00:00
78693730a4
tsan: use a single background thread for memory profiler and memory flush (and later for symbolizer flush)
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llvm-svn: 177627
2013-03-21 06:24:31 +00:00
b6eace8a2f
tsan: add internal_unlink() function
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llvm-svn: 177510
2013-03-20 10:28:36 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
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llvm-svn: 177400
2013-03-19 14:33:38 +00:00
6d02c1c598
[sanitizer] Avoid use of uintptr_t.
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llvm-svn: 177384
2013-03-19 09:39:15 +00:00
b4a218db34
[sanitizer] Don't adjust the size of the user-allocated stack.
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Moved this code to sanitizer_common.
llvm-svn: 177383
2013-03-19 09:30:52 +00:00
a097f7b1e3
[Sanitizer] Add default constructor for BlockingMutex
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llvm-svn: 177072
2013-03-14 13:30:56 +00:00
5697b58ec4
[sanitizer] Move GetTlsSize code from TSan to sanitizer_common.
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llvm-svn: 176938
2013-03-13 08:19:53 +00:00
d38aceda4e
[Sanitizer] Fix a typo in function name
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llvm-svn: 176932
2013-03-13 06:55:02 +00:00
06d3aa4884
[Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev.
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llvm-svn: 176931
2013-03-13 06:51:02 +00:00
db7d9656bb
[Sanitizer] Implement BlockingMutex::CheckLocked()
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llvm-svn: 176805
2013-03-11 15:45:20 +00:00
49b86b354a
[Sanitizer] don't include missing header on Android
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llvm-svn: 176183
2013-02-27 13:03:35 +00:00
f0b8f989e9
add Linux syscall wrappers and ThreadLister to sanitizer_common
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ThreadLister is a Linux-specific class for obtaining the thread IDs of a process from procfs (/proc/<pid>/task/). It will be used by leak checking code.
Also add several syscall wrappers which will be required by the same code that uses ThreadLister, but are not used in ThreadLister itself.
Patch by Sergey Matveev
llvm-svn: 176179
2013-02-27 11:22:40 +00:00
aadd1f2ad6
[Sanitizer] use raw syscall instead of _exit() function on Linux
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llvm-svn: 175622
2013-02-20 13:54:32 +00:00
adaca58526
[msan] Fix ReExec on linux.
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execle(argv[0], ...) is wrong, because argv[0] may contain a PATH-resolvable
program name. Execute /proc/self/exe instead.
llvm-svn: 175504
2013-02-19 11:09:29 +00:00
2a25bfe06a
[sanitizer] Get full argv and envp on glibc.
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/proc/$PID/cmdline is clipped to 4Kb.
Locate argv and envp on the main thread stack.
llvm-svn: 175163
2013-02-14 14:40:03 +00:00
763b2981b4
[sanitizer] Raise argv limit for ReExec.
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We are still limited by /proc/*/cmdline size (4Kb max on Linux!).
llvm-svn: 175145
2013-02-14 08:22:06 +00:00
2c5cbd2b38
[Sanitizer] extend internal libc with stat/fstat/lstat functions
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llvm-svn: 174316
2013-02-04 10:16:50 +00:00
4985b8766e
[Sanitizer] use u32 instead of mode_t, which is defined in Darwin headers
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llvm-svn: 174189
2013-02-01 16:32:18 +00:00
39313b780d
[Sanitizer] make internal_open have the same interface as libc version
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llvm-svn: 174187
2013-02-01 15:58:46 +00:00
00e0236665
asan/tsan: manually define FUTEX constants, because <linux/futes.h> header is broken on some linux distributions
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llvm-svn: 173933
2013-01-30 14:39:27 +00:00
6600516a58
Have ReExec read environment from /proc/self/environ
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It is possible for ReExec to be called before the C standard library
has initialised itself sufficiently for execv to work properly.
Fix this by parsing the environment ourselves and using execve.
Differential Revision: http://llvm-reviews.chandlerc.com/D304
llvm-svn: 172748
2013-01-17 19:50:42 +00:00
c4bb752e3b
[sanitizer] hide PR_SET_NAME under an ifdef (for older kernels)
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llvm-svn: 172523
2013-01-15 09:03:23 +00:00
064c739cea
asan: fix Android build
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llvm-svn: 172389
2013-01-14 08:48:26 +00:00
8d15db4a1e
tsan: fix cmake warning (unused private field)
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llvm-svn: 172387
2013-01-14 08:21:34 +00:00
af4b0b084a
asan: fix compilation errors in mutex
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llvm-svn: 172385
2013-01-14 08:01:58 +00:00
f22982bf0a
asan/tsan: move blocking mutex from asan to sanitizer_common
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llvm-svn: 172380
2013-01-14 07:51:39 +00:00
864ef315c0
[asan] make the slow unwinder a bit more robust. The unittests pass with fast_unwind_on_fatal=0, but I still observe some differences between the two unwinders
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llvm-svn: 171973
2013-01-09 13:55:00 +00:00
5b375d84c0
tsan: fix build
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llvm-svn: 170191
2012-12-14 12:24:11 +00:00
bb69879d09
[asan] pop the internal stack frames in SlowUnwindStack, extend the test to check this
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llvm-svn: 170124
2012-12-13 12:31:55 +00:00
baf583c443
[asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder
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llvm-svn: 170117
2012-12-13 09:34:23 +00:00
1746f555ee
Add a libsanitizer API __sanitizer_sandbox_on_notify(void* reserved), which should be used by
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the client programs to notify the tools that sandboxing is about to be turned on.
llvm-svn: 169732
2012-12-10 13:10:40 +00:00
3a2046b3a6
tsan: fix lint warnings
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llvm-svn: 169606
2012-12-07 16:20:06 +00:00
35f9e5e87b
[sanitizer] implement SanitizerSetThreadName/SanitizerGetThreadName. Just for linux so far (using prctl(PR_GET_NAME))
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llvm-svn: 169598
2012-12-07 11:27:24 +00:00
dd95cd148b
tsan: fix lint warnings
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llvm-svn: 169369
2012-12-05 10:16:02 +00:00
0a4e0f6d35
Fix a use-after-unmap bug in /proc/self/maps caching. The cached buffer was occasionally deleted in the MemoryMappingLayout destructor.
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llvm-svn: 169335
2012-12-04 23:30:00 +00:00
e2b6d08459
Use a struct to hold the /proc/self/maps buffer on Linux.
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llvm-svn: 169155
2012-12-03 21:21:22 +00:00
7811425843
Add caching to the MemoryMappingLayout class on Linux. This is necessary for the cases when a sandbox prevents ASan from reading the mappings
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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
734f1eb5f4
[asan/tsan] do not use __WORDSIZE macro, as it is glibc-private thing. Instead, define our own SANITIZER_WORDSIZE
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llvm-svn: 168424
2012-11-21 12:38:58 +00:00
87e0464bfb
[asan] better support for powerpc and sparc targets (thanks to H.J. Liu and David Miller)
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llvm-svn: 168358
2012-11-20 08:57:26 +00:00
cb9f62189b
[asan] support PowerPC and SPARC in sanitizer_linux.cc
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llvm-svn: 168301
2012-11-19 07:53:36 +00:00
1f8922cf71
[asan] use #if defined __x86_64__ instead of #if __WORDSIZE == 64 in sanitizer_linux.cc
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llvm-svn: 167883
2012-11-13 23:13:17 +00:00
ae9b18b607
[Sanitizer] add sanity checks for communication with external symbolizer
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llvm-svn: 167617
2012-11-09 14:45:30 +00:00
49e8576a09
[*San]: handle EINTR.
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llvm-svn: 165006
2012-10-02 13:41:40 +00:00
56faa551b9
tsan: fix mac build
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llvm-svn: 165004
2012-10-02 12:58:14 +00:00
97ca306641
[Sanitizer] Hoist functions to get/set stack size and re-exec from memory-sanitizer branch to sanitizer_common
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llvm-svn: 164020
2012-09-17 09:12:39 +00:00
f6d2125829
[Sanitizer] implement readlink as syscall on Linux
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llvm-svn: 163213
2012-09-05 14:48:24 +00:00
cc62211fbf
[Sanitizer] Rename ProcessMaps to MemoryMappingLayout and fix Windows build by providing stub implementation
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llvm-svn: 162671
2012-08-27 13:48:48 +00:00
ef7758f561
[Sanitizer] move OS-dependent pieces of symbolizer to separate source files
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llvm-svn: 161862
2012-08-14 13:00:32 +00:00
7acdc1738f
[Sanitizer] When obtaining the data for loaded modules, add address ranges of loadable segments only. Looks like address range of PT_TLS segment may intersect with loadable segments of other modules.
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llvm-svn: 160498
2012-07-19 07:51:20 +00:00
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.
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llvm-svn: 159652
2012-07-03 08:24:14 +00:00
5766a9e015
[asan] fix lint
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llvm-svn: 159429
2012-06-29 14:14:32 +00:00
d32d537d63
[asan] get rid of libc's sscanf as it causes infinite recursion on Fedora.
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llvm-svn: 159424
2012-06-29 13:05:36 +00:00
98390d0b71
[tsan] a bit more lint and Makefile changes to run tests from sanitizer_common
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llvm-svn: 158821
2012-06-20 15:19:17 +00:00
58a3c58ec9
[Sanitizer] move different wrappers from TSan to common sanitizer runtime
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llvm-svn: 158655
2012-06-18 08:44:30 +00:00
0c53a38abb
[Sanitizer] move portable GetEnv to common sanitizer runtime
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llvm-svn: 158451
2012-06-14 14:07:21 +00:00
cf4d3a027d
[Sanitizer] Fix mac build.
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llvm-svn: 158141
2012-06-07 07:32:00 +00:00
4b1f1031e6
[Sanitizer] factor out GetThreadStackTopAndBottom from ASan runtime to common.
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llvm-svn: 158140
2012-06-07 07:13:46 +00:00
28a9895ee0
[Sanitizer] __asan::AsanProcMaps -> __sanitizer::ProcessMaps.
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llvm-svn: 158139
2012-06-07 06:15:12 +00:00
64166ca86b
[tsan,asan] comment out O_CLOEXEC as it causes build failures on old linux kernels
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llvm-svn: 158071
2012-06-06 14:11:31 +00:00
ca2b5d7abb
[Sanitizer] move internal_filesize and internal_dup2 from TSan to sanitizer_common.
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llvm-svn: 158052
2012-06-06 07:30:33 +00:00
5bbf8290a7
[Sanitizer] rename sanitizer_defs.h to sanitizer_internal_defs.h
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llvm-svn: 158001
2012-06-05 14:25:27 +00:00
7ac77d6b29
[Sanitizer] add sanitizer_posix.cc. Move more various functions into sanitizer_libc: sscanf, munmap, memchr
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llvm-svn: 157994
2012-06-05 09:49:25 +00:00
03c8b846c4
[Sanitizer] add internal_{close,read,write} functions to sanitizer_libc
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llvm-svn: 157990
2012-06-05 08:32:53 +00:00
dde1f11fe6
[Sanitizer] Add sanitizer_win.cc for windows-specific implementations of libc functions. Add internal_open.
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llvm-svn: 157985
2012-06-05 07:05:10 +00:00
2c5fc3bb11
Created files sanitizer_linux.cc and sanitizer_mac.cc for platform-specific implementations of common functions. Turned asan_mmap into __sanitizer::internal_mmap.
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llvm-svn: 157930
2012-06-04 14:27:50 +00:00
Peter Collingbourne