Commit Graph

80 Commits

Author SHA1 Message Date
Sergey Matveev 6cb47a083b [sanitizer] Support sandboxing in sanitizer coverage.
Summary:
Sandboxed code may now pass additional arguments to
__sanitizer_sandbox_on_notify() to force all coverage data to be dumped to a
single file (the default is one file per module). The user may supply a file or
socket to write to. The latter option can be used to broker out the file writing
functionality. If -1  is passed, we pre-open a file.

llvm-svn: 209121
2014-05-19 12:53:03 +00:00
Kostya Serebryany 7a733480c8 [asan] introduce interface function __sanitizer_verify_contiguous_container to verify annotations in vector-like containers
llvm-svn: 208092
2014-05-06 14:41:01 +00:00
Kostya Serebryany 8b530e10a1 [asan] make AsanCoverage lock-free (and AS-safe)
llvm-svn: 207630
2014-04-30 10:40:48 +00:00
Evgeniy Stepanov fe250b0014 [msan] Prettify __msan_print_shadow.
Makes __msan_print_shadow output much more readable, adds origin info.

llvm-svn: 207622
2014-04-30 09:50:30 +00:00
Peter Collingbourne 16f2f18105 Add user-defined callback on write() calls.
Add dfsan_set_write_callback(), which sets a callback to be invoked when
a write() call is invoked within DFSan instrumented code.

Patch by Sam Kerner!

Differential Revision: http://reviews.llvm.org/D3268

llvm-svn: 207131
2014-04-24 17:42:16 +00:00
Kostya Serebryany 90527cb324 [asan] don't use bool in public interface, make sure the interface headers are usable in plain C
llvm-svn: 206160
2014-04-14 11:16:53 +00:00
Evgeniy Stepanov 2dcb5c0a2c [msan] Kill __msan_print_param_shadow.
It does not do what it's name says, and what it actually does is hard to
describe, and is not useful at all.

llvm-svn: 205415
2014-04-02 11:55:24 +00:00
Evgeniy Stepanov 80cb930c09 [msan] Add __msan_check_mem_is_initialized.
An assert()-like function that checks that a memory range is fully initialized.

llvm-svn: 205413
2014-04-02 11:50:42 +00:00
Evgeniy Stepanov 89602651e8 [msan] Implement __msan_set_death_callback.
llvm-svn: 204926
2014-03-27 14:04:58 +00:00
Peter Collingbourne 5d167dae7d Add function to get the number of DFSan labels allocated.
Expose the number of DFSan labels allocated by adding function dfsan_get_label_count().

Patch by Sam Kerner!

Differential Revision: http://llvm-reviews.chandlerc.com/D3109

llvm-svn: 204854
2014-03-26 21:09:53 +00:00
Sergey Matveev fa76f3b3a5 [MSan] Add __msan_unpoison_string() to the public interface.
Using __msan_unpoison() on null-terminated strings is awkward because
strlen() can't be called on a poisoned string. This case warrants a special
interface function.

llvm-svn: 204448
2014-03-21 10:12:17 +00:00
Evgeniy Stepanov e0e980c748 [msan] Remove stubs for non-instrumented code from msan interface header.
llvm-svn: 201777
2014-02-20 11:43:00 +00:00
Alexey Samsonov 1181a104e6 [CMake] Rename several variables
llvm-svn: 201575
2014-02-18 14:28:53 +00:00
Kostya Serebryany 1ee681305f [asan] introduce two functions that will allow implementations of C++ garbage colection to work with asan's fake stack
llvm-svn: 200908
2014-02-06 06:56:22 +00:00
Kostya Serebryany 06222915cf [lsan] remove LeakSanitizerIsTurnedOffForTheCurrentProcess (this was a bad idea), leave __lsan_is_turned_off
llvm-svn: 199304
2014-01-15 08:04:21 +00:00
Evgeniy Stepanov fc0ba53531 [msan] Fix an incorrect comment.
llvm-svn: 199300
2014-01-15 06:49:40 +00:00
Sergey Matveev 3a47244c94 [lsan] Add __lsan_default_suppressions() to the public interface header.
llvm-svn: 199121
2014-01-13 17:26:57 +00:00
Kostya Serebryany e8699fcd8e [sanitizer] fix comment
llvm-svn: 199112
2014-01-13 15:06:20 +00:00
Kostya Serebryany 27f5b8800d [lsan] rename __lsan_is_turned_off to LeakSanitizerIsTurnedOffForTheCurrentProcess (leave the old variant for now for compatibility)
llvm-svn: 198921
2014-01-10 07:58:25 +00:00
Alexey Samsonov cef2e14382 [ASan] Get rid of __asan_symbolize function
llvm-svn: 197670
2013-12-19 11:08:47 +00:00
Sergey Matveev 7237879926 [lsan] Introduce __lsan_(un)register_root_region().
Add an interface for telling LSan that a region of memory is to be treated as a
source of live pointers. Useful for code which stores pointers in mapped memory.

llvm-svn: 197489
2013-12-17 11:11:23 +00:00
Alexey Samsonov 4fc8098979 [TSan] Move declarations of __tsan_atomic functions to a public header
llvm-svn: 197015
2013-12-11 08:18:50 +00:00
Sergey Matveev d8fb4d8f91 [sanitizer] Expose __sanitizer_print_stack_trace().
Expose a new interface function for debugging code built with sanitizer tools.
Add an ASan implementation.

llvm-svn: 196302
2013-12-03 18:24:28 +00:00
Kostya Serebryany 3771a3dd73 [asan] remove a fixed FIXME; extend the comment around __sanitizer_annotate_contiguous_container
llvm-svn: 195131
2013-11-19 14:54:14 +00:00
Kostya Serebryany 7b664299f0 [asan] new shadow poison magic for contiguous-container-buffer-overflow, addressed Alexey Samsonov's comments for r195011
llvm-svn: 195117
2013-11-19 08:40:07 +00:00
Kostya Serebryany 3d97c2040d [asan] introduce __sanitizer_annotate_contiguous_container
llvm-svn: 195011
2013-11-18 14:02:05 +00:00
Alexey Samsonov 1011fe6a6e CMake: make sure compiler-rt headers are copied to build tree if 'compilrer-rt' target is built
llvm-svn: 195002
2013-11-18 10:57:36 +00:00
Bob Wilson a08e9ac927 Reapply asan coverage changes 194702-194704.
I still don't know what is causing our bootstrapped LTO buildbots to fail,
but llvm r194701 seems to be OK and I can't imagine that these changes could
cause the problem.

llvm-svn: 194790
2013-11-15 07:18:15 +00:00
Bob Wilson abc91eacac Speculatively revert asan coverage changes 194702-194704.
Apple's bootstrapped LTO builds have been failing, and these changes (along
with llvm 194701) are the only things on the blamelist.  I will either reapply
these changes or help debug the problem, depending on whether this fixes the
buildbots.

llvm-svn: 194779
2013-11-15 03:26:28 +00:00
Kostya Serebryany c46f281f83 [asan] unbreak dfsan, which includes sanitizer/common_interface_defs.h into internal sources (although it shoudn't)
llvm-svn: 194704
2013-11-14 13:44:43 +00:00
Kostya Serebryany 91c52d9552 [asan] Poor man's coverage that works with ASan (compiler-rt part)
llvm-svn: 194702
2013-11-14 13:28:17 +00:00
Dmitry Vyukov 2346c7a511 tsan: fix linux syscall hooks
the file references non-existent arguments and breaks build

llvm-svn: 193234
2013-10-23 08:40:19 +00:00
Dmitry Vyukov 67a1eef05b tsan: remove __sanitizer_set_report_fd function from public interface
__sanitizer_set_report_path now accepts two special values - stderr and stdout
logging to other file descriptors is not supported anymore,
it's fragile in presence of multiple processes, fork, etc

llvm-svn: 192706
2013-10-15 14:14:34 +00:00
Dmitry Vyukov 1da6b4d5c8 tsan: intercept fork syscall
llvm-svn: 191144
2013-09-21 20:59:04 +00:00
Evgeniy Stepanov 2b31d7186e [msan] Make all pointers in msan_interface "const volatile void *".
This way msan annotations can be used with both normal and volatile memory.

llvm-svn: 190403
2013-09-10 11:54:51 +00:00
Evgeniy Stepanov df96e863de [msan] bool -> int to make msan_interface.h C-compatible.
llvm-svn: 190402
2013-09-10 11:04:37 +00:00
Evgeniy Stepanov 5c1035e7fa [sanitizer] A bunch of linux system call handlers.
llvm-svn: 190157
2013-09-06 14:20:01 +00:00
Peter Collingbourne 7da504faa4 [dfsan] Introduce dfsan_read_label runtime function.
Differential Revision: http://llvm-reviews.chandlerc.com/D1349

llvm-svn: 188319
2013-08-13 22:15:40 +00:00
Dmitry Vyukov 4ba287f328 dfsan: fix lint warning
llvm-svn: 188292
2013-08-13 16:52:07 +00:00
Peter Collingbourne 21b2929aca [dfsan] Introduce dfsan_union runtime function.
Differential Revision: http://llvm-reviews.chandlerc.com/D1347

llvm-svn: 188229
2013-08-12 23:47:37 +00:00
Peter Collingbourne 5cbab07d02 DataFlowSanitizer; compiler-rt changes.
DataFlowSanitizer is a generalised dynamic data flow analysis.

Unlike other Sanitizer tools, this tool is not designed to detect a
specific class of bugs on its own.  Instead, it provides a generic
dynamic data flow analysis framework to be used by clients to help
detect application-specific issues within their own code.

Differential Revision: http://llvm-reviews.chandlerc.com/D967

llvm-svn: 187924
2013-08-07 22:47:26 +00:00
Alexey Samsonov b42ea7ef21 Lint fixes
llvm-svn: 187726
2013-08-05 13:20:39 +00:00
Evgeniy Stepanov 44b77c26e4 [msan] Allocator statistics interface and malloc hooks.
llvm-svn: 187653
2013-08-02 14:26:58 +00:00
Evgeniy Stepanov 3feb17c452 [sanitizer] Tweak read syscall handler signature for consistency.
llvm-svn: 187417
2013-07-30 13:16:52 +00:00
Evgeniy Stepanov 9fbd981f99 [sanitizer] read() syscall hook.
llvm-svn: 187414
2013-07-30 13:04:43 +00:00
Sergey Matveev 655bd0d08c [lsan] Add __lsan_do_leak_check() to the public interface.
Let users override the normal behavior to run leak checking earlier in
the process. Also fix a couple nits here and there.

llvm-svn: 186581
2013-07-18 14:06:07 +00:00
Evgeniy Stepanov f7f252d025 [sanitizer] Syscall handlers for clock_gettime and clock_getres.
llvm-svn: 185913
2013-07-09 08:54:59 +00:00
Alexey Samsonov 895784a5b0 [LSan] Add the way to disable LSan at link time
llvm-svn: 185066
2013-06-27 09:35:50 +00:00
Evgeniy Stepanov ae4e1ec4e6 [msan] Add keep_going runtime flag.
llvm-svn: 184542
2013-06-21 12:37:58 +00:00
Alexey Samsonov 7e325fb477 Properly install LSan interface header, rely on sanitizer header presence in lit tests
llvm-svn: 183977
2013-06-14 11:45:36 +00:00