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2756 Commits

Author SHA1 Message Date
Alexey Samsonov 0ac73fc9f8 AddressSanitizer: return false instead of true for __asan_get_ownership(NULL) 
llvm-svn: 148394
 2012-01-18 15:26:55 +00:00
Alexander Potapenko 38da9a04f5 Delete sysinfo/* and all references to it. 
llvm-svn: 148386
 2012-01-18 11:42:30 +00:00
Alexander Potapenko 4257386879 Implement AsanProcMaps for Mac OS. The code from sysinfo/ is not needed anymore and should be cleaned up. 
llvm-svn: 148385
 2012-01-18 11:16:05 +00:00
Kostya Serebryany 5767f0f113 [asan] workaround for bug http://llvm.org/bugs/show_bug.cgi?id=11763. Do not bark on memcpy(a, a, size). 
llvm-svn: 148318
 2012-01-17 18:43:52 +00:00
Kostya Serebryany 86d4492627 [asan] fix ReadFileToBuffer to correctly handle files from /proc/ (asan issue 27) 
llvm-svn: 148311
 2012-01-17 18:00:07 +00:00
Alexey Samsonov 67d508d083 Revert commit 148304 
llvm-svn: 148305
 2012-01-17 14:01:15 +00:00
Alexey Samsonov 1e310295d0 AddressSanitizer: from this patch, ASan allocator returns false for __asan_get_ownership(NULL) and produce error reports for malloc_usable_size(NULL) and __asan_get_allocated_size(NULL) 
llvm-svn: 148304
 2012-01-17 13:31:54 +00:00
Alexander Potapenko 2b2e0721d7 Define the bounds of the branch allocator memory space for 32-bit apps. 
llvm-svn: 148303
 2012-01-17 09:38:54 +00:00
Alexey Samsonov 209c514a1d AddressSanitizer: add support for malloc_usable_size() function 
llvm-svn: 148287
 2012-01-17 06:39:10 +00:00
Alexey Samsonov 2d3a67b73b AddressSanitizer: create AsanThreadSummary together with AsanThread (in parent thread) 
llvm-svn: 148286
 2012-01-17 06:35:31 +00:00
Evgeniy Stepanov 1b65b17bf5 [asan] Implement GetObjectNameAndOffset on ARM. 
llvm-svn: 148236
 2012-01-16 12:45:07 +00:00
Alexey Samsonov 50bf956f29 AddressSanitizer: fix recently introduced lint errors and broken test on Mac. 
llvm-svn: 148235
 2012-01-16 12:38:09 +00:00
Evgeniy Stepanov 2227207c83 Disable posix_memalign test on Android. 
llvm-svn: 148234
 2012-01-16 12:19:51 +00:00
Alexander Potapenko bd53f597de This patch adds two methods, __asan_allocate_island and __asan_deallocate_island 
and switches our interceptors to using them instead of the default
vm_allocate-based approach used by mach_override_ptr.

To simplify the code, a fixed memory mapping is used for the allocation pool --
note that we can't mmap an arbitrary chunk of memory, because the shadow memory hasn't been mapped yet
(for the reasons discussed in http://code.google.com/p/address-sanitizer/issues/detail?id=24, we cannot map the shadow earlier)

The patch drops the program startup time from several second to half a second,
which speeds up the execution of ASan tests noticeably.
Because of the virtual memory size occupied by the programs it's hard
to speed up the shutdown time, which would've also helped the tests.

llvm-svn: 148116
 2012-01-13 16:13:58 +00:00
Alexander Potapenko 9301db4baa Add __asan_mach_override_ptr_custom, which allows to inject a custom memory allocator into mach_override_ptr(). 
llvm-svn: 148115
 2012-01-13 15:31:37 +00:00
Alexander Potapenko 553c208d22 This patch moves the code reading /proc/self/environ into AsanGetEnv 
in asan_linux.cc, because /proc is unavailable on Mac.
Instead the Mac version of AsanGetEnv iterates over the array of
environment variables obtained from _NSGetEnviron()

llvm-svn: 148114
 2012-01-13 12:59:48 +00:00
Evgeniy Stepanov 837fe5bcc9 Call asan_init from .preinit_array. 
Protected by an #ifdef, disabled by default.

llvm-svn: 147932
 2012-01-11 08:17:19 +00:00
Alexey Samsonov 5d5fa5115a Test commit. Minor cleanup in AsanThread 
llvm-svn: 147930
 2012-01-11 08:07:51 +00:00
Kostya Serebryany 41cdb8614c [asan] remove OS-dependent headers from asan_internal.h 
llvm-svn: 147919
 2012-01-11 02:39:16 +00:00
Kostya Serebryany 0c8fa7b8ed [asan] remove OS-dependent includes from asan_interceptors.h 
llvm-svn: 147916
 2012-01-11 02:32:40 +00:00
Kostya Serebryany 1dd51b53b2 [asan] move TSD code into asan_posix.cc 
llvm-svn: 147913
 2012-01-11 02:21:06 +00:00
Kostya Serebryany 332923be32 [asan] get rid of the scary TSD destructor code. Now, we store the leaky AsanThreadSummary in TSD and never remove it from there. 
llvm-svn: 147910
 2012-01-11 02:03:16 +00:00
Kostya Serebryany 258d7b4182 [asan] hopefully fix the build on MacOS 10.6 (the code did work on 10.7, where I tested it) 
llvm-svn: 147896
 2012-01-10 23:36:59 +00:00
Kostya Serebryany a82f0d4950 [asan] move OS-dependent code away from asan_lock.h 
llvm-svn: 147878
 2012-01-10 21:24:40 +00:00
Kostya Serebryany edb4a8a128 [asan] don't include unistd.h in the headers 
llvm-svn: 147811
 2012-01-09 23:11:26 +00:00
Kostya Serebryany 3a55cfacf1 [asan] temporary reinstate string.h/strings.h. Removal of those caused a Mac build failulre which I failed to observe before the commit 
llvm-svn: 147810
 2012-01-09 22:45:05 +00:00
Kostya Serebryany d9cb2f13b3 [asan] don't include string.h and strings.h 
llvm-svn: 147809
 2012-01-09 22:36:51 +00:00
Kostya Serebryany 65518014e2 [asan] don't use strstr/strncat from libc, use our own versions instead 
llvm-svn: 147807
 2012-01-09 22:20:49 +00:00
Kostya Serebryany 3ab81d1f26 [asan] fix mac build once more 
llvm-svn: 147796
 2012-01-09 19:50:06 +00:00
Kostya Serebryany 3e559e87a4 [asan]: fix typo from previous commit 
llvm-svn: 147793
 2012-01-09 19:41:15 +00:00
Kostya Serebryany ba41e8d2c5 [asan]: fix mac build 
llvm-svn: 147792
 2012-01-09 19:35:11 +00:00
Kostya Serebryany 5be458ccfd [asan] refactoring: move some common linux/mac code to asan_posix.cc 
llvm-svn: 147788
 2012-01-09 19:18:27 +00:00
Kostya Serebryany 9fd01e5ea5 [asan] refactoring: move all interceptors to a single file 
llvm-svn: 147784
 2012-01-09 18:53:15 +00:00
Kostya Serebryany 3f4b9bb4a0 [asan] do not use new/delete for the internal thread structure 
llvm-svn: 147674
 2012-01-06 19:44:11 +00:00
Kostya Serebryany 25d6c1b3c3 [asan] move more code into OS-specific files 
llvm-svn: 147671
 2012-01-06 19:11:09 +00:00
Kostya Serebryany adebf0caf5 [asan] cleanup: remove the SIGILL-related code (rt part) 
llvm-svn: 147665
 2012-01-06 18:02:04 +00:00
Kostya Serebryany 2b08718bba [asan] move more stuff to OS-specific files 
llvm-svn: 147647
 2012-01-06 02:12:25 +00:00
Kostya Serebryany 3b7fb102c4 [asan] use dl_iterate_phdr for pre-symbolization on linux instead of parsing /proc/self/maps 
llvm-svn: 147628
 2012-01-05 23:50:34 +00:00
Kostya Serebryany 78d87d3b4b [asan] move {linux,mac}-specific code from asan_thread.cc to asan_{linux,mac}.cc; also add asan_procmaps.h which I forgot to add on previous commit. 
llvm-svn: 147586
 2012-01-05 01:07:27 +00:00
Kostya Serebryany cd271f5440 [asan] implement our own /proc/self/maps reader and use it on linux instead of sysinfo.h 
llvm-svn: 147581
 2012-01-05 00:44:33 +00:00
Kostya Serebryany cc1d7893d6 [asan] remove objdump-based tests in favour of much simpler LLVM-ish tests 
llvm-svn: 147514
 2012-01-04 02:08:46 +00:00
Kostya Serebryany 10a6b304e1 [asan] build asan-rt with -funwind-tables 
llvm-svn: 147341
 2011-12-29 17:29:20 +00:00
Kostya Serebryany d2d043be45 [asan] force the __asan_unregister_globals to reside in the runtime library 
llvm-svn: 147329
 2011-12-28 23:35:46 +00:00
Kostya Serebryany a772096156 [asan] refactoring: don't #include <sys/mman.h> in non-os-specific files 
llvm-svn: 147328
 2011-12-28 23:28:54 +00:00
Kostya Serebryany 6c4bd806fa [asan] use custom libc-free getenv; a bit of refactoring around mmap calls 
llvm-svn: 147326
 2011-12-28 22:58:01 +00:00
Kostya Serebryany 5bdf7dcb2d [asan] missing PTHREAD_DESTRUCTOR_ITERATIONS on Android. patch by eugeni.stepanov@gmail.com 
llvm-svn: 147322
 2011-12-28 20:47:21 +00:00
Kostya Serebryany bab78de8a3 [asan] discover main thread stack limits without pthread. patch by eugeni.stepanov@gmail.com 
llvm-svn: 147321
 2011-12-28 20:34:30 +00:00
Kostya Serebryany 2b87e403c4 [asan] no ucontext on Android. patch by eugeni.stepanov@gmail.com 
llvm-svn: 147320
 2011-12-28 20:22:21 +00:00
Kostya Serebryany 76eca5e53a [asan] enable memset/memcpy/memmove interceptors in asan-rt (in addition to those in the compiler module) 
llvm-svn: 147319
 2011-12-28 19:55:30 +00:00
Kostya Serebryany e4a84c4f1f [asan] better message for parameter overlap bugs 
llvm-svn: 147317
 2011-12-28 19:24:31 +00:00
Kostya Serebryany 50bc2a71b2 [asan] interceptor for strcat. Patch by samsonov@google.com 
llvm-svn: 147316
 2011-12-28 19:08:49 +00:00
Kostya Serebryany 6579e355c0 [asan] interceptor for memcmp. Patch by samsonov@google.com 
llvm-svn: 147315
 2011-12-28 18:56:42 +00:00
Kostya Serebryany 809632e28e [asan] interceptors for strcasecmp and strncasecmp. patch by samsonov@google.com 
llvm-svn: 147304
 2011-12-28 02:24:50 +00:00
Kostya Serebryany 8b981c2564 The code instrumented with ASan may have its own instance of the 
mach_override library.
In this case chances are that functions from it will be called from
mach_override_ptr() during ASan initialization.
This may lead to crashes (if those functions are instrumented) or
incorrect behavior (if the implementations differ).

The attached patch renames mach_override_ptr() into
__asan_mach_override_ptr() and makes the rest of the mach_override
internals hidden.
The corresponding AddressSanitizer bug is
http://code.google.com/p/address-sanitizer/issues/detail?id=22

Patch by glider@google.com

llvm-svn: 147303
 2011-12-28 01:08:14 +00:00
Kostya Serebryany 46c70d33d7 [asan] make sure __asan_report_* functions are not inlined (so that they are not optimized away and are kept in the resulting library). Patch by glider@google.com 
llvm-svn: 147302
 2011-12-28 00:59:39 +00:00
Kostya Serebryany 5469986da0 [asan] remove the test for cfree. 'man cfree' says: 'This function should never be used.' and this function is not found on many OSes we support. 
llvm-svn: 147301
 2011-12-27 23:42:55 +00:00
Kostya Serebryany dd1386f882 new() has slightly different signature on Android. This patch adds the 
llvm-svn: 147300
 2011-12-27 23:11:09 +00:00
Kostya Serebryany db32f967b9 [asan] rely on __has_feature(address_sanitizer) instead of the ADDRESS_SANITIZER macro 
llvm-svn: 147297
 2011-12-27 21:57:12 +00:00
Kostya Serebryany 1b82c281f3 [asan] make sure frame pointers are not omitted when running asan output tests 
llvm-svn: 147293
 2011-12-27 19:52:54 +00:00
Kostya Serebryany 6bb2f1d5b5 Recently the GCD tests started failing because of the invalid size of 
FakeStack on the worker threads.
This patch moves the AsanThread initialization into a separate
procedure that's called when AsanThread objects are called for worker
threads.
Patch by glider@google.com

llvm-svn: 146752
 2011-12-16 19:13:35 +00:00
Kostya Serebryany 6d37656c1a [asan] revert r146529: we do need to build asan-rt as a shared library. Will need to find a different way to modify preinit_array 
llvm-svn: 146703
 2011-12-15 23:08:00 +00:00
Kostya Serebryany 7ce9686921 [asan] added a test to check that a global-buffer-overflow mentioned the module name; revert incorrect change in the test runner 
llvm-svn: 146701
 2011-12-15 22:57:32 +00:00
Kostya Serebryany 9366d42e91 [asan] fix a bug (issue 19) where dlclose and the following mmap caused a false positive. run-time part. 
llvm-svn: 146687
 2011-12-15 21:55:34 +00:00
Kostya Serebryany e8a7d2aef8 [asan] regression test for asan issue 19, currently fails. 
llvm-svn: 146681
 2011-12-15 20:38:14 +00:00
Kostya Serebryany 7fb33a3d40 [asan] poison the internal asan heap memory, just in case. Change Printf to Report when debugging globals. 
llvm-svn: 146663
 2011-12-15 17:41:30 +00:00
Kostya Serebryany 9bd5208965 [asan] insert __asan_init into ".preinit_array" section. Linux-only. 
llvm-svn: 146529
 2011-12-14 00:19:03 +00:00
Kostya Serebryany e85da73553 [asan] fix the test runner to detect build breakages; add a test for -pie 
llvm-svn: 146528
 2011-12-14 00:05:22 +00:00
Kostya Serebryany 1d337a5e06 [asan] fix some more format warnings in sysinfo/sysinfo.cc 
llvm-svn: 146526
 2011-12-13 23:34:59 +00:00
Kostya Serebryany d47a91ad2a [asan] canonicalise the output for double-free and wrong-free. fixes asan issue 18 
llvm-svn: 146501
 2011-12-13 19:16:36 +00:00
Kostya Serebryany 0698b852ed [asan] fix asan-rt interceptors on Snow Leopard. Patch by glider@google.com 
llvm-svn: 146263
 2011-12-09 18:18:54 +00:00
Kostya Serebryany 72fde3727e [asan] make use-after-return mode more robust: allow to call instrumented functions while reporting an error 
llvm-svn: 146231
 2011-12-09 01:49:31 +00:00
Kostya Serebryany 7487a0ae1f [asan] fix output test to not require debug symbols in asan run-time 
llvm-svn: 146212
 2011-12-09 00:18:21 +00:00
Kostya Serebryany 7c01c1af19 [asan] better test for use-after-return mode 
llvm-svn: 146203
 2011-12-08 23:30:48 +00:00
Kostya Serebryany 9b5673cf5a [asan] fresh version of mach_override; added mach_override/README.txt. Patch by glider@google.com 
llvm-svn: 146166
 2011-12-08 19:14:07 +00:00
Kostya Serebryany 9752158954 [asan] update the soon-to-be-depricated asan makefile to use the new path for asan-rt (affects only linux) 
llvm-svn: 146162
 2011-12-08 18:46:33 +00:00
Kostya Serebryany b50a539eba [asan] move build-time config options from makefile to source (otherwise we need config options in all makefiles) 
llvm-svn: 146161
 2011-12-08 18:30:42 +00:00
Kostya Serebryany f0d799a6bc [asan] fix the error message for 16-byte accesses (it previously printed 'unknown-crash') 
llvm-svn: 146075
 2011-12-07 21:30:20 +00:00
Kostya Serebryany ca207f0473 [asan] minor cleanup 
llvm-svn: 145966
 2011-12-06 21:10:15 +00:00
Kostya Serebryany 8b815e1a08 [asan] GCD tests on Mac: prevent optimization and enable. Patch by glider@google.com 
llvm-svn: 145953
 2011-12-06 19:10:48 +00:00
Kostya Serebryany 8b277533b6 [asan] remove format warnings in sysinfo/sysinfo.cc 
llvm-svn: 145886
 2011-12-06 01:08:31 +00:00
Kostya Serebryany ab7940f6e1 [asan]: test a pure C file with -faddress-sanitizer; lint fixes 
llvm-svn: 145848
 2011-12-05 20:44:30 +00:00
Kostya Serebryany 0e069e2aa9 [asan] add the test for bug 11468 
llvm-svn: 145839
 2011-12-05 19:20:57 +00:00
Kostya Serebryany 49a182fa12 [asan] always collect malloc statstics (removed FLAG_stats) 
llvm-svn: 145838
 2011-12-05 19:17:53 +00:00
Kostya Serebryany 92ebcadfe4 [asan] cleanup memset/memmove/memcpy interceptors and enable them on Mac. Patch by samsonov@google.com 
llvm-svn: 145826
 2011-12-05 18:56:29 +00:00
Kostya Serebryany 93927f9e01 [asan] don't require __cxa_throw to be present in the process. This is the last dependency on libstdc++ 
llvm-svn: 145821
 2011-12-05 17:56:32 +00:00
Kostya Serebryany 551a1739b8 [asan] get rid of some more dependency on libstdc++ 
llvm-svn: 145743
 2011-12-03 02:23:25 +00:00
Kostya Serebryany 26c5df4733 [asan] micro-benchmark for use-after-return fake stack 
llvm-svn: 145739
 2011-12-03 01:44:48 +00:00
Kostya Serebryany b89f2a6e78 [asan] put back -O2 which was lost quite some time ago and caused noticeable perf drop in malloc-intensive apps. doh. 
llvm-svn: 145723
 2011-12-02 23:04:12 +00:00
Kostya Serebryany e4bada2c94 [asan] get rid of std::map. No STL and almost no libstdc++ left. 
llvm-svn: 145706
 2011-12-02 21:02:20 +00:00
Kostya Serebryany c5be44aaa2 [asan] quick fix for mac build, second attempt. Sorry for spam. 
llvm-svn: 145694
 2011-12-02 18:52:35 +00:00
Kostya Serebryany 196cd6af90 [asan] quick fix for mac build 
llvm-svn: 145692
 2011-12-02 18:48:20 +00:00
Kostya Serebryany 2d27cdf621 [asan] minimize the use of STL. One bit is still left. 
llvm-svn: 145691
 2011-12-02 18:42:04 +00:00
Daniel Dunbar 2003d39f7c build: Add ModuleName per-subdir variable as a way to organize the different 
sets of functions/objects into high level groups. Currently we have "builtins"
(the main compiler-rt code), "profile", and "asan".
 - Use this to define CommonFunctions and ArchFunctions to only reference the
   builtins functions.

llvm-svn: 145674
 2011-12-02 02:42:07 +00:00
Daniel Dunbar 4e3a11ba57 lib/asan: Fix possible type mismatches. 
llvm-svn: 145664
 2011-12-02 01:36:38 +00:00
Daniel Dunbar 9c665e36d4 lib/asan: Attempt to ensure __WORDSIZE gets defined, it is not always set by 
Darwin's stdint.h for example.

llvm-svn: 145663
 2011-12-02 01:32:27 +00:00
Kostya Serebryany 70e163b507 add/update LICENSE.TXT files for the third_party code used by asan 
llvm-svn: 145659
 2011-12-02 01:12:36 +00:00
Daniel Dunbar cf7fb02388 build/asan: Better fix for ASAN i386 build on Darwin, this causes us to see the 
non-standard struct names.

llvm-svn: 145658
 2011-12-02 00:52:55 +00:00
Daniel Dunbar 8a5fd211ab build/asan: Fix ASAN build for i386, for reasons I don't really understand we 
get the DARWIN_UNIX03 definition on x86_64 but not on i386.

llvm-svn: 145657
 2011-12-02 00:45:48 +00:00
Daniel Dunbar 12024d00a7 asan: Fill in integration with compiler-rt/make build. 
llvm-svn: 145648
 2011-12-01 23:35:56 +00:00
Daniel Dunbar 5dc7770bf7 asan: Suppress a -Wbitwise-op-parentheses. 
llvm-svn: 145647
 2011-12-01 23:35:51 +00:00
Daniel Dunbar fc4a4a3cbc asan: #if 0 out some unused functions (we build with -Werror). 
llvm-svn: 145645
 2011-12-01 23:35:47 +00:00
Kostya Serebryany 5dfa4da0b9 [asan] flatten the asan-rt build slightly 
llvm-svn: 145631
 2011-12-01 21:40:52 +00:00
Kostya Serebryany f318e29102 test asan at -O0 
llvm-svn: 145532
 2011-11-30 22:27:30 +00:00
Kostya Serebryany 15dd3f2500 Refactor shadow poisoning done by asan-rt, no funtionality changes; patch by samsonov@google.com 
llvm-svn: 145505
 2011-11-30 18:50:23 +00:00
Kostya Serebryany 9d1eee9e2a fix asan-rt build on Mac. Patch by glider@google.com 
llvm-svn: 145496
 2011-11-30 17:33:13 +00:00
Kostya Serebryany 019b76f5fd AddressSanitizer run-time library. Not yet integrated with the compiler-rt build system, but can be built using the old makefile. See details in README.txt 
llvm-svn: 145463
 2011-11-30 01:07:02 +00:00