Commit Graph

1528 Commits

Author SHA1 Message Date
Kostya Serebryany 1fb81720ec [asan] relax the assertion around array cookie load; still need to extract a reproducer where this assertion fails...
llvm-svn: 217215
2014-09-05 01:16:30 +00:00
Alexey Samsonov f537aeaea1 [ASan] Remove the call to GetPageSizeCached from fast path of FastPoisonShadow
llvm-svn: 217194
2014-09-04 20:47:27 +00:00
Evgeniy Stepanov 21202ba8dd [asan] Update asan_device_setup to support Android L Preview.
llvm-svn: 216884
2014-09-01 15:37:50 +00:00
Kostya Serebryany c148f7c3af [asan] enable poison_array_cookie back
llvm-svn: 216705
2014-08-29 01:16:18 +00:00
Kostya Serebryany ac77055272 [asan] introduce __asan_load_cxx_array_cookie: check that the array cookie address is properly poisoned and return the cookie value. If not, return 0 to avoid infinite loop of DTORs (in case of use-after-free). Calls to this function will be inserted by clang (separate change)
llvm-svn: 216692
2014-08-28 22:28:04 +00:00
Kostya Serebryany 1e3b338606 [asan] disable poison_array_cookie while I am investigating a false positive on chromium (I suspect that LLVM looses nosanitizer metadata; no test yet)
llvm-svn: 216684
2014-08-28 20:24:05 +00:00
Timur Iskhodzhanov 737370da20 [ASan/Win] Add the -Zl flag to avoid /DEFAULTLIB:libcmt directive in the asan_win_uar_thunk object file
This directive results in 'symbol already defined' when linking DLLs that use -MD

llvm-svn: 216663
2014-08-28 12:28:04 +00:00
Alexander Potapenko 83061238d4 [ASan] Whitespace fix. No functionality change.
llvm-svn: 216544
2014-08-27 13:43:18 +00:00
Evgeniy Stepanov 8f4e736080 [asan] Restore asan-rt name on linux back to pre-r216380.
There is no reason to have different library names for shared and static
cases on linux. It also breaks Android where we install the shared asan-rt
library into the system and should keep the old name.

This change reverts most of r216380 limiting it to win32 targets only.

llvm-svn: 216533
2014-08-27 09:46:54 +00:00
Timur Iskhodzhanov 81885731a8 [ASan/Win] Rename asan_dll_thunk.cc to asan_win_dll_thunk.cc
llvm-svn: 216448
2014-08-26 10:21:37 +00:00
Timur Iskhodzhanov 6903e10ddf [ASan/Win] Add an extra thunk.lib to handle stack-use-after-return option
With this patch, "check-asan" passes all the tests with both MT and MD ASan RTL if you set COMPILER_RT_BUILD_SHARED_ASAN to ON
(PR20214)

llvm-svn: 216447
2014-08-26 10:08:24 +00:00
Kostya Serebryany 74bd6bc9f9 [sanitizer] move mlock interceptor from asan/tsan/msan to common; no functionality change intended
llvm-svn: 216407
2014-08-25 20:57:59 +00:00
Timur Iskhodzhanov dc8caada51 [ASan/Win] Add /DEBUG to the MD RTL link flags
llvm-svn: 216387
2014-08-25 16:45:53 +00:00
Timur Iskhodzhanov 2311f4dfaa [ASan] Replace CMake if/APPEND/endif with append_if
llvm-svn: 216386
2014-08-25 16:40:39 +00:00
Timur Iskhodzhanov 0a88b25c43 [ASan/Win] Intercept memory allocation functions in the MD CRT
llvm-svn: 216382
2014-08-25 13:19:05 +00:00
Timur Iskhodzhanov ea3ce790dc [ASan] Rename the ASan dynamic RT
Reviewed at http://reviews.llvm.org/D5026

llvm-svn: 216380
2014-08-25 11:44:06 +00:00
Timur Iskhodzhanov 220ddacf8d [ASan/Win] Land the trivial bits of -MD RTL support (PR20214)
llvm-svn: 216265
2014-08-22 12:38:07 +00:00
Timur Iskhodzhanov f2d24473fe [ASan] Use check_library_exists to determine if libc/libstdc++ are available
llvm-svn: 216264
2014-08-22 12:26:34 +00:00
Alexander Potapenko 373863d31e Follow-up for r215436: use SIZE_T for strlen and wcslen interceptors.
llvm-svn: 216184
2014-08-21 16:12:46 +00:00
Timur Iskhodzhanov a14ef30443 [ASan] Turns out we should always intercept __cxa_throw
At least check-asan works with this change.

If the change breaks anything, we'll need to add:
a) a comment describing why we have to use INTERCEPT_FUNCTION rather than
   ASAN_INTERCEPT_FUNC
and
b) a test case.

llvm-svn: 216177
2014-08-21 13:33:39 +00:00
Alexey Samsonov 2e39027931 [LSan] Parse common flags from LSAN_OPTIONS even if LSan is combined with
another sanitizer.

A user may run both LSan and LSan+ASan. It is weird to pass path to leak
suppression file (or other common sanitizer flags, like "verbosity") in
"LSAN_OPTIONS" in the first case and in "ASAN_OPTIONS" in the second case.

llvm-svn: 215949
2014-08-18 23:39:47 +00:00
Timur Iskhodzhanov 48e21c07c1 Follow-up to r215724: fix a lint warning
llvm-svn: 215725
2014-08-15 16:10:02 +00:00
Timur Iskhodzhanov 5c84264194 [ASan/Win] Introduce a new macro for malloc-like function attributes; also, clang-format the definitions of these functions
llvm-svn: 215724
2014-08-15 16:08:53 +00:00
Timur Iskhodzhanov f8b1cd210d [ASan/Win] We don't really need to use .CRT to call __asan_init when using -MD
llvm-svn: 215719
2014-08-15 14:44:17 +00:00
Timur Iskhodzhanov 750f1cf9e4 [ASan/Win] Remove old, unused and non-functional code that will be re-written soon
llvm-svn: 215707
2014-08-15 12:56:52 +00:00
Alexey Samsonov 34e2b280da [TSan] Share the code the setup code calling getrlim/setrlim with sanitizer_common
llvm-svn: 215481
2014-08-12 22:31:19 +00:00
Alexey Samsonov d2d2457823 [Sanitizer] Make disable_coredump a common flag and use it in TSan
llvm-svn: 215479
2014-08-12 22:07:48 +00:00
Alexey Samsonov b9ec65cd4d [Sanitizer] Kill deprecated allocator interfaces in ASan, MSan and TSan in favor of
a unified interface in <sanitizer/allocator_interface.h>.

llvm-svn: 215469
2014-08-12 20:28:20 +00:00
Timur Iskhodzhanov 6963686c47 [ASan] Use more appropriate return types for strlen/wcslen to avoid MSVC warnings
llvm-svn: 215436
2014-08-12 11:02:53 +00:00
Alexey Samsonov 968a358974 [ASan] Add new options for asan_symbolize.py script.
The patch adds new features in asan-symbolizer script which are helpful for using ASan on embedded systems:

1) add cross-compile prefix for binutils
2) define path to sysroot with sanitized binaries

Features are enabled by command line options.
The patch also extends command line interface with help option.

Reviewed in http://reviews.llvm.org/D4703.

Patch by Maria Guseva!

llvm-svn: 215381
2014-08-11 20:02:49 +00:00
Alexey Samsonov 408d2152c4 Fixup Android tests build rules
llvm-svn: 215264
2014-08-09 00:23:11 +00:00
Timur Iskhodzhanov 0575694729 [ASan/Win] Handle SEH exceptions even with -GS
This is a follow-up to r213654, r213656, r213667 and r213668.

llvm-svn: 214861
2014-08-05 13:26:26 +00:00
Kostya Serebryany e9f24a9b3b [asan] poison array cookies only on 64-bit arch
llvm-svn: 214713
2014-08-04 12:59:45 +00:00
Kostya Serebryany 522c35eb80 [asan] introduce __asan_poison_cxx_array_cookie. This is asan-rt part of PR19838 (Left OOB accesses on new[]-allocated arrays with array cookies are not detected). No tests yet. They will follow once I commit the clang part.
llvm-svn: 214711
2014-08-04 12:43:13 +00:00
Kostya Serebryany 1cd57ebb6b [asan] intercept sized operator delete[]
llvm-svn: 214704
2014-08-04 10:10:50 +00:00
Alexey Samsonov d9ad5cec0c [ASan] Use metadata to pass source-level information from Clang to ASan.
Instead of creating global variables for source locations and global names,
just create metadata nodes and strings. They will be transformed into actual
globals in the instrumentation pass (if necessary). This approach is more
flexible:
1) we don't have to ensure that our custom globals survive all the optimizations
2) if globals are discarded for some reason, we will simply ignore metadata for them
   and won't have to erase corresponding globals
3) metadata for source locations can be reused for other purposes: e.g. we may
   attach source location metadata to alloca instructions and provide better descriptions
   for stack variables in ASan error reports.

No functionality change.

llvm-svn: 214604
2014-08-02 00:35:50 +00:00
Ehsan Akhgari 9e5b6a08d4 [ASan] Support the asan_loadN/asan_storeN functions in the DLL thunk library
Summary:
This is required for linking DLLs with large functions exceeding
san-instrumentation-with-call-threshold.  One such function is
vp9_fdct16x16_sse2 in libvpx.

Reviewers: timurrrr

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4758

llvm-svn: 214532
2014-08-01 18:04:53 +00:00
Evgeniy Stepanov 1cd9e019da [asan] End-to-end test for REP MOVS instrumentation.
Patch by Yuri Gorshenin.

llvm-svn: 214396
2014-07-31 09:12:20 +00:00
Kostya Serebryany e7532e59c0 [asan] rename new-delete-size-mismatch to new-delete-type-mismatch and make the report more verbose
llvm-svn: 214299
2014-07-30 11:20:37 +00:00
Kostya Serebryany 69852a843c [asan] add a feature to detect new-delete-size-mismatch (when used with -Xclang -fsized-deallocation). Not yet on Mac. Also, remove some unused code.
llvm-svn: 214296
2014-07-30 09:48:23 +00:00
Alexey Samsonov 1440105338 [Sanitizer] Simplify Symbolizer creation interface.
Get rid of Symbolizer::Init(path_to_external) in favor of
thread-safe Symbolizer::GetOrInit(), and use the latter version
everywhere. Implicitly depend on the value of external_symbolizer_path
runtime flag instead of passing it around manually.

No functionality change.

llvm-svn: 214005
2014-07-26 01:37:23 +00:00
Alexey Samsonov 2178054216 [Sanitizer] Introduce SANITIZER_CAN_USE_PREINIT_ARRAY definition and use it across sanitizers.
Get rid of ASAN_USE_PREINIT_ARRAY and LSAN_USE_PREINIT_ARRAY - just always
use .preinit_array if it's available. This mode seems stable enough, and
we've been relying on default values of these macro for a long time.

llvm-svn: 213980
2014-07-25 22:05:02 +00:00
Viktor Kutuzov d712403b98 Allow initialization of Asan interceptors before the general Asan initialization takes place on FreeBSD
Differential Revision: http://reviews.llvm.org/D4496

llvm-svn: 213941
2014-07-25 12:45:36 +00:00
Timur Iskhodzhanov cb5bf58f3d [ASan/Win] Add SEH handling to the DLL thunk as well
llvm-svn: 213656
2014-07-22 14:02:53 +00:00
Timur Iskhodzhanov 6d4a6cd68f [ASan/Win] Handle SEH exceptions (best-effort, similar to longjmp)
llvm-svn: 213654
2014-07-22 13:44:18 +00:00
Timur Iskhodzhanov f2b96e3009 [ASan/Win] Add handling of C++ exceptions to the RTL
Also add a longjmp() test

llvm-svn: 213649
2014-07-22 12:37:51 +00:00
Alexey Samsonov a89ad664b1 [ASan] Fix __asan_describe_address and add a test for it.
llvm-svn: 213583
2014-07-21 21:33:46 +00:00
Viktor Kutuzov 5f5adb8ed5 Add FreeBSD support to the Asan symbolization script
Differential Revision: http://reviews.llvm.org/D4560

llvm-svn: 213370
2014-07-18 12:07:00 +00:00
Evgeniy Stepanov 92d20f3f90 [asan] Remove leftover debug printf.
llvm-svn: 213264
2014-07-17 13:05:21 +00:00
Evgeniy Stepanov f62cd5559e [asan] Fix malloc interception on Android L Preview.
Format of __libc_malloc_dispatch has changed in Android L.
While we are moving towards a solution that does not depend on bionic
internals, here is something to support both K* and L releases.

llvm-svn: 213263
2014-07-17 12:48:45 +00:00