033890cd0a
[compiler-rt] [asan] Refactor DescribeAddressIfStack to allow reuse for debugging API
...
Refactoring the DescribeAddressIfStack function in asan_report.cc to be able to reuse it for http://reviews.llvm.org/D4527 .
Reviewed at http://reviews.llvm.org/D4545 .
llvm-svn: 213215
2014-07-17 00:18:03 +00:00
9c62a6d8a2
[ASan] Factor out SymbolizationLoop.process_line() function to let Python
...
scripts that import asan_symbolize to symbolize their reports line by line.
llvm-svn: 213136
2014-07-16 11:00:16 +00:00
58f44dce96
[ASan] Add ASan debugging API to get malloc/free stack traces and shadow memory mapping info
...
Reviewed at http://reviews.llvm.org/D4466
llvm-svn: 213080
2014-07-15 17:33:23 +00:00
9e4580c8ee
[ASan] Only define macros in asan_init_version.h, move the __asan_init declaration back to asan_interface_internal.h
...
This fixes the issues we've uncovered after landing r212815.
Reviewed at http://reviews.llvm.org/D4500
llvm-svn: 213053
2014-07-15 08:16:04 +00:00
ae9d59e8c4
[ASan] Improve ODR-violation error reports.
...
Demangle names of involved globals. Print a more consistent summary line.
llvm-svn: 212857
2014-07-11 23:34:26 +00:00
8e9a5b1899
[asan] fix x32 build, patch by H.J. Lu
...
llvm-svn: 212823
2014-07-11 15:22:45 +00:00
03f1e408de
[ASan/Win] Don't apply dllexport to __asan_init in the DLL thunk
...
This fixes '___asan_init_v4 already defined' errors when linking some of Chromium DLLs.
Looks like one of the DLL is using a .lib produced while linking another DLL and it exploded after r212699.
I'm trying to come up with a small testcase...
llvm-svn: 212815
2014-07-11 13:46:05 +00:00
f6827cef73
[ASan] Print register values in a consistent way
...
llvm-svn: 212809
2014-07-11 12:14:46 +00:00
19853dd28c
[ASan/Win] Catch NULL derefs and page faults
...
Reviewed at http://reviews.llvm.org/D4471
llvm-svn: 212807
2014-07-11 11:57:41 +00:00
3eb1f4bb90
[ASan/Win] Don't hardcode ASan runtime version in ASan dll thunk
...
Reviewed at http://reviews.llvm.org/D4459
llvm-svn: 212699
2014-07-10 10:33:48 +00:00
020ac94665
[ASan] Force the compiler to generate frame pointer in certain Mac-specific interceptors.
...
Patch by Kuba Brecka!
llvm-svn: 212664
2014-07-10 00:06:53 +00:00
58a046fe56
[ASan] Clean up leftovers from assembly instrumentation helpers
...
llvm-svn: 212471
2014-07-07 18:11:24 +00:00
91bb8e0e3a
Generalize sanitizer allocator public interface.
...
Introduce new public header <sanitizer/allocator_interface.h> and a set
of functions __sanitizer_get_ownership(), __sanitizer_malloc_hook() etc.
that will eventually replace their tool-specific equivalents
(__asan_get_ownership(), __msan_get_ownership() etc.). Tool-specific
functions are now deprecated and implemented as stubs redirecting
to __sanitizer_ versions (which are implemented differently in each tool).
Replace all uses of __xsan_ versions with __sanitizer_ versions in unit
and lit tests.
llvm-svn: 212469
2014-07-07 17:39:31 +00:00
86c077b3a2
[asan] Remove runtime assembly helpers.
...
Remove helper functions that were used in assembly instrumentation.
Patch by Yuri Gorshenin.
llvm-svn: 212456
2014-07-07 13:59:12 +00:00
7c163a44aa
[sanitizer] support c11 aligned_alloc, Linux only for now
...
llvm-svn: 212322
2014-07-04 07:30:34 +00:00
4af9c0ea80
[asan] i686-linux-android support.
...
Large part of this change is required due to
https://code.google.com/p/android/issues/detail?id=61799
dlsym() crashes when symbol resolution fails, which means
we have to limit the interceptor list instead of relying on
runtime detection.
There are minor differencies in system headers, too.
llvm-svn: 212273
2014-07-03 14:20:56 +00:00
4f319cca42
[ASan] Print exact source location of global variables in error reports.
...
See https://code.google.com/p/address-sanitizer/issues/detail?id=299 for the
original feature request.
Introduce llvm.asan.globals metadata, which Clang (or any other frontend)
may use to report extra information about global variables to ASan
instrumentation pass in the backend. This metadata replaces
llvm.asan.dynamically_initialized_globals that was used to detect init-order
bugs. llvm.asan.globals contains the following data for each global:
1) source location (file/line/column info);
2) whether it is dynamically initialized;
3) whether it is blacklisted (shouldn't be instrumented).
Source location data is then emitted in the binary and can be picked up
by ASan runtime in case it needs to print error report involving some global.
For example:
0x... is located 4 bytes to the right of global variable 'C::array' defined in '/path/to/file:17:8' (0x...) of size 40
These source locations are printed even if the binary doesn't have any
debug info.
This is an ABI-breaking change. ASan initialization is renamed to
__asan_init_v4(). Pre-built libraries compiled with older Clang will not work
with the fresh runtime.
llvm-svn: 212188
2014-07-02 16:54:41 +00:00
cd60ed53f6
[asan] when reporting an ODR violation, also print the stack traces where the globals have been registered (thus show the name of shared library or exe to which the global belongs). The reports become a bit too verbose but I do not see any *simple* way to make them more compact. This should be especially helpful when the ODR happens because the same .cc file is used twice in the project in differend DSOs
...
llvm-svn: 211343
2014-06-20 08:24:12 +00:00
1f386f0f36
Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode
...
llvm-svn: 210988
2014-06-15 13:56:28 +00:00
1c71fde161
Exclude Android from the tests for valloc/pvalloc.
...
These functions are being removed from Android because they were removed
from POSIX 2004.
llvm-svn: 210962
2014-06-14 00:50:03 +00:00
63ece03c57
[asan] Add malloc_usable_size to android malloc dispatch.
...
llvm-svn: 210452
2014-06-09 08:36:14 +00:00
e5c34ace7f
[asan] Make ReplaceSystemMalloc optional on Android.
...
Don't fail if __libc_malloc_dispatch is missing; continue running
with normal linux interceptors instead.
llvm-svn: 210322
2014-06-06 10:57:21 +00:00
558b3363a7
[asan] initialize fake_stack_ to 0 before we call SetThreadStackAndTls, because that may actually try to use fake_stack_ (still don't know how). Yet another case where we desperately want https://sourceware.org/glibc/wiki/ThreadPropertiesAPI
...
llvm-svn: 210315
2014-06-06 07:35:35 +00:00
57eba53a01
[asan] asan_device_setup: extend search path
...
In standalone build asan-rt is stored in yet another path.
llvm-svn: 210259
2014-06-05 12:49:35 +00:00
3641cd43b2
[asan] Use -pthread instead of -lpthread in tests.
...
llvm-svn: 210255
2014-06-05 12:22:37 +00:00
a1b620051f
[asan] Add install rule for Android runtime
...
llvm-svn: 210216
2014-06-04 21:05:01 +00:00
fe18102649
[sancov] Handle fork.
...
Reset coverage data on fork().
For memory-mapped mode (coverage_direct=1) this helps avoid loss of data
(before this change two processes would write to the same file simultaneously).
For normal mode, this reduces coverage dump size, because PCs from the parent
process are no longer inherited by the child.
llvm-svn: 210180
2014-06-04 12:13:54 +00:00
7d4fc2c6a7
[asan] enable detect_odr_violation=2; https://code.google.com/p/address-sanitizer/wiki/OneDefinitionRuleViolation . This feature has been working quite well so far, found a few bugs and zero false positives. The main problem is that there could be lots of true positives and users will have to disable this checking until the bugs are fixed.
...
llvm-svn: 210106
2014-06-03 15:06:13 +00:00
b1415c46fb
[ASan Win] Manually call __asan_init early in the DLL initialization process to avoid a null function call in cout/cerr constructors
...
llvm-svn: 210030
2014-06-02 14:40:07 +00:00
5181dd3a56
[asan] Improve vDSO check in AsanCheckDynamicRTPrereqs; patch by Yuri Gribov
...
llvm-svn: 210012
2014-06-02 10:39:40 +00:00
1b42b81549
[Sanitizers Win] Move duplicate Windows-specific compiler flags to a common CMake variable
...
Reviewed at http://reviews.llvm.org/D3952
llvm-svn: 209889
2014-05-30 12:42:57 +00:00
5bed4206c8
[ASan Win] DLL thunk: make each INTERFACE_FUNCTION unique to prevent ICF linker optimizations
...
llvm-svn: 209881
2014-05-30 09:01:17 +00:00
dd7cb28572
[asan] Enable ASan on PowerPC.
...
Patch by Peter Bergner.
llvm-svn: 209879
2014-05-30 08:52:03 +00:00
cd1a131c61
Moved the builtins documentation to lib/builtins/
...
And fixed typos in the ASan readme.
Differential Revision: http://reviews.llvm.org/D3927
llvm-svn: 209778
2014-05-28 23:09:45 +00:00
82ee0433da
[ASan/Win] Use clang rather than clang-cl by default for lit tests. Make Windows-only tests explicitly use clang-cl.
...
Reviewed at http://reviews.llvm.org/D3893
llvm-svn: 209719
2014-05-28 08:38:13 +00:00
d74bdccafe
[asan] Add a dll thunk for __sanitizer_cov_module_init.
...
llvm-svn: 209718
2014-05-28 08:34:53 +00:00
567e516015
[asancov] Write coverage directly to a memory-mapped file.
...
This way does not require a __sanitizer_cov_dump() call. That's
important on Android, where apps can be killed at arbitrary time.
We write raw PCs to disk instead of module offsets; we also write
memory layout to a separate file. This increases dump size by the
factor of 2 on 64-bit systems.
llvm-svn: 209653
2014-05-27 12:37:52 +00:00
e1e9a4e2ec
[asan] fix a test following r209508
...
llvm-svn: 209509
2014-05-23 11:52:38 +00:00
e31d5b6a2c
[asan] relax the test for long double
...
llvm-svn: 209445
2014-05-22 14:50:14 +00:00
b2eb3131f4
[ASan/Win] Make sure the list of wrappers exported by the main module and imported by the DLL thunk always matches
...
llvm-svn: 209444
2014-05-22 14:49:56 +00:00
8ff177ede3
[ASan/Win] Thread more library functions from the DLL thunk to the main module
...
llvm-svn: 209441
2014-05-22 13:57:22 +00:00
0c7c78f1d1
[ASan/Win] Use the new function interception approach to handle function wrappers too; wrap strlen() in DLLs
...
Reviewed at http://reviews.llvm.org/D3871
llvm-svn: 209427
2014-05-22 12:03:40 +00:00
94ffc5bc12
[ASan/Win] Don't use INTERCEPTOR_ATTRIBUTE for operator new/delete on Windows
...
Reviewed at http://reviews.llvm.org/D3870
llvm-svn: 209416
2014-05-22 11:31:21 +00:00
818b2e8f71
[ASan/Win] Add a comment about DCL-using-static vs threads
...
llvm-svn: 209414
2014-05-22 10:24:48 +00:00
208aae8ee0
[msan] Chained origins re-design.
...
Generalize StackDepot and create a new specialized instance of it to
efficiently (i.e. without duplicating stack trace data) store the
origin history tree.
This reduces memory usage for chained origins roughly by an order of
magnitude.
Most importantly, this new design allows us to put two limits on
stored history data (exposed in MSAN_OPTIONS) that help avoid
exponential growth in used memory on certain workloads.
See comments in lib/msan/msan_origin.h for more details.
llvm-svn: 209284
2014-05-21 09:02:13 +00:00
687933f55d
[asan] Fix x86 asm instrumentation to preserve flags.
...
This change also enables asm instrumentation in asan tests that was
accidentally disabled yearlier, and adds a sanity test for that.
Patch by Yuri Gorshenin.
llvm-svn: 209282
2014-05-21 08:21:14 +00:00
e7894f3b14
[ASan Win] Simplify and improve the way we forward ASan interface calls from DLLs
...
Reviewed at http://reviews.llvm.org/D3848
llvm-svn: 209210
2014-05-20 14:26:19 +00:00
6c039b3459
[asan] update asan_symbolize.py to use the new llvm-symbolizer flag syntax
...
llvm-svn: 209116
2014-05-19 08:30:51 +00:00
930ffe94aa
[Sanitizer tests] Don't need to use -lstdc++ thanks to --driver-mode=g++
...
Reviewed at http://reviews.llvm.org/D3796
llvm-svn: 209115
2014-05-19 08:19:38 +00:00
1ee7fc7a1a
Fix typos
...
llvm-svn: 208841
2014-05-15 02:22:34 +00:00
b9e31d7fcd
[asan] use some LIKELY/UNLIKELY
...
llvm-svn: 208776
2014-05-14 14:03:31 +00:00
86e2470a5b
[ASan/Win] Enable demangling of global variable names
...
llvm-svn: 208775
2014-05-14 13:55:59 +00:00
7534a60753
[asan] Respect personality in kernel area detector, patch by Yuri Gribov
...
llvm-svn: 208760
2014-05-14 08:13:11 +00:00
339e8c98f8
[Sanitizer tests] Add sanitizer_test_config.h to make the inclusion of gtest.h conditional
...
Reviewed at http://reviews.llvm.org/D3744
llvm-svn: 208696
2014-05-13 13:25:12 +00:00
2e9136c2da
[Sanitizer/ASan tests] Automatically detect the presence of libstdc++
...
llvm-svn: 208695
2014-05-13 12:57:50 +00:00
7d07fe20a0
[ASan tests] Add Windows-specific flags to lib/asan/tests/CMakeLists.txt
...
Reviewed at http://reviews.llvm.org/D3720
llvm-svn: 208682
2014-05-13 10:33:42 +00:00
711269966c
[Sanitizer tests] Make simple pthread tests compile and pass on Windows
...
Reviewed at http://reviews.llvm.org/D3725
llvm-svn: 208674
2014-05-13 08:07:09 +00:00
1866b58885
[ASan] Split static ASan runtime in two parts: asan and asan_cxx.
...
asan_cxx containts replacements for new/delete operators, and should
only be linked in C++ mode. We plan to start building this part
with exception support to make new more standard-compliant.
See https://code.google.com/p/address-sanitizer/issues/detail?id=295
for more details.
llvm-svn: 208609
2014-05-12 18:39:22 +00:00
a9e9e9d640
[ASan tests] Don't define __asan_default_options in tests on Windows as it is not supported
...
llvm-svn: 208575
2014-05-12 15:12:44 +00:00
90278c626f
[ASan] Add references to the issue tracker about malloc/free/new/delete mismatch check on Mac and Windows
...
llvm-svn: 208574
2014-05-12 15:06:59 +00:00
d5d5f6a8b9
[ASan tests] Exclude/simplify a bunch of tests to make them build on Windows
...
(This also requires D3720, D3725 and a few more small changes to land)
llvm-svn: 208573
2014-05-12 15:04:25 +00:00
9bd988b33b
[ASan tests] Don't run FakeStack.CreateDestroy on Windows as it OOMs
...
llvm-svn: 208572
2014-05-12 14:49:17 +00:00
9a205ed8ee
[ASan tests] Use the proper attribute on RunStrChrTest helper functions to avoid "unused function" warnings
...
llvm-svn: 208568
2014-05-12 14:31:57 +00:00
f37bd92c3a
[asan] Move the "coverage" flag to common flags.
...
The implementation lives in sanitizer_common and will need to access that flag.
llvm-svn: 208566
2014-05-12 14:27:36 +00:00
118d469660
[asan] one more attempt to enable lsan by default (PR19521)
...
llvm-svn: 208545
2014-05-12 12:49:48 +00:00
626edb6f49
Add FreeBSD support to address sanitizer process mapping facilities
...
llvm-svn: 208537
2014-05-12 11:03:46 +00:00
9c81b31568
[asan] define ASAN_DYNAMIC=1 if PIC is defined
...
llvm-svn: 208530
2014-05-12 09:45:39 +00:00
d7992fc921
[asan] fix a self deadlock when printing stats; add a relevant test, cleanup that test while at it to remove linux/darwin differences. Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=306
...
llvm-svn: 208525
2014-05-12 08:01:51 +00:00
e153347cc5
[ASan tests] Fix non-Windows breakage
...
llvm-svn: 208332
2014-05-08 15:59:35 +00:00
21a22d34be
[ASan tests] More progress towards Windows support
...
llvm-svn: 208326
2014-05-08 15:13:26 +00:00
48253ed689
[ASan tests] More progress towards Windows support
...
llvm-svn: 208325
2014-05-08 15:05:42 +00:00
498052b8eb
[ASan tests] More progress towards Windows support
...
llvm-svn: 208323
2014-05-08 15:01:29 +00:00
fddadefc33
[ASan tests] Auto-define ASAN_NEEDS_SEGV rather than hardcode it in cmake
...
llvm-svn: 208322
2014-05-08 14:53:59 +00:00
76f43eecb0
[ASan] Update sanitizer_common and asan test_util headers to support building on Windows
...
llvm-svn: 208306
2014-05-08 12:43:33 +00:00
6d58e0726d
Ignore stack-buffer-overflow in std::_Find_elem<*> / std::num_get<...>::_Getifld
...
Reviewed at http://reviews.llvm.org/D3650
llvm-svn: 208215
2014-05-07 14:40:23 +00:00
7d46040ff2
[sanitizer] Replace a macro with a function.
...
llvm-svn: 208207
2014-05-07 13:24:28 +00:00
c087df0655
[asan] Include asm instrumentation source in Makefile build.
...
llvm-svn: 208172
2014-05-07 08:55:46 +00:00
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
7d5c81db0a
[ASan/Win] Don't crash when ASAN_OPTIONS have disable_core=1
...
Reviewed at http://reviews.llvm.org/D3610
llvm-svn: 208070
2014-05-06 08:21:50 +00:00
7721eb3f9d
[ASan/Win] Add DLL thunks for the fake stack interface
...
llvm-svn: 207960
2014-05-05 12:26:04 +00:00
8b530e10a1
[asan] make AsanCoverage lock-free (and AS-safe)
...
llvm-svn: 207630
2014-04-30 10:40:48 +00:00
4f9c31a2fa
[asan] split detect_odr_violation into two: =2 detects all ODR violations, =1 detects only those where the variable sizes are different. BTW, the detector seems to be working well and finding nice bugs. Early adopters are welcome.
...
llvm-svn: 207415
2014-04-28 12:47:58 +00:00
f9eba2f51d
Fix building Asan and common sanitizers tests on FreeBSD 9.2
...
llvm-svn: 207408
2014-04-28 10:33:01 +00:00
e91930a7e6
[asan] implement an experimental detector of ODR violations. Not tested yet outside of a tiny test, may need tuning.
...
llvm-svn: 207210
2014-04-25 08:58:28 +00:00
34ad1a1085
Add DLL thunks for recently-added memcpy, memset and memmove ASan intrinsics
...
llvm-svn: 207113
2014-04-24 12:58:26 +00:00
a51e483846
[ASan] Move the shadow range on 32-bit iOS (and iOS Simulator)
...
to 0x40000000-0x60000000 to avoid address space clash with system libraries.
The solution has been proposed by tahabekireren@gmail.com in https://code.google.com/p/address-sanitizer/issues/detail?id=210
This is also known to fix some Chromium iOS tests.
llvm-svn: 207002
2014-04-23 17:14:45 +00:00
8cd3d27879
[asan] disable lsan back. :( -- It appears that quite a few lit tests have leaks and they were not covered by out buildbot
...
llvm-svn: 206955
2014-04-23 08:15:16 +00:00
c9db838267
[asan] enable LeakSanitizer (LSan) by default in asan. This only affects Linux x86_64. LSan has been used in various projects for more than half a year and we now consider it quite stable to be on by default.
...
llvm-svn: 206896
2014-04-22 13:56:56 +00:00
38bb53b2c5
[asan] add a run-time flag detect_container_overflow=true/false
...
llvm-svn: 206753
2014-04-21 14:18:45 +00:00
632751539e
[asan] add __asan_memset and friends
...
llvm-svn: 206748
2014-04-21 11:58:25 +00:00
74f8d65ae4
[asan] add one more mode to run asan tests with '-with-calls', i.e. using -mllvm -asan-instrumentation-with-call-threshold=0. This is very unfortunate since it effectively doubles the number of gunit asan tests that need to be built and run, but as long as we need out-lined calls (PR17409) I see no other way to test this workaround
...
llvm-svn: 206742
2014-04-21 10:31:35 +00:00
3d2629c514
[asan] implement __asan_loadN/__asan_storeN for out-lined asan checks
...
llvm-svn: 206733
2014-04-21 07:09:01 +00:00
561c4db707
[asan] Reenable tests that should pass since PR19207 is fixed.
...
llvm-svn: 206593
2014-04-18 13:24:03 +00:00
da1c510ea6
[ASan] Change AddressSanitizer.LoadStoreCallbacks to use asan_malloc and asan_free.
...
Interceptors don't really work on OSX in asan_noinst_test.cc (this is more or less intentional),
so one shouldn't call intercepted functions in this test -- added a comment about this.
llvm-svn: 206477
2014-04-17 17:29:07 +00:00
664b1e2f9b
[asan] fix a bug in outlined asan checks and in the corresponding test (ouch)
...
llvm-svn: 206470
2014-04-17 14:38:25 +00:00
ae401ca5e7
[asan] add __asan_load1/__asan_store1/... callbacks to asan-rt; together with -mllvm -asan-instrumentation-with-call-threshold=N this will be a workaround for PR17409
...
llvm-svn: 206387
2014-04-16 13:52:28 +00:00
d4b1b2068e
[asan] fix the alloctor code to not use opaque data structure, which was larger than needed. This was a leftover of the allocator1=>allocator2 migration; thanks Yuri Gribov for reminding
...
llvm-svn: 206280
2014-04-15 13:30:32 +00:00
bcfbea6d4e
[asan] added internal flag mmap_limit_mb
...
llvm-svn: 206178
2014-04-14 14:51:01 +00:00
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
f694ab1f18
[asan] provide better reports for cases where memcpy/etc get negative size parameter. Also fix a typo found by Tetsuo Kiso
...
llvm-svn: 206158
2014-04-14 09:50:52 +00:00
Kuba Brecka