c6fd019c77
[Sanitizer] Add basic test for atomic_compare_exchange implementation
...
llvm-svn: 177851
2013-03-25 08:48:16 +00:00
c91e327cba
Build and install .syms files alongside sanitizer runtimes. These are used to
...
specify which symbols are exported to DSOs when the sanitizer is statically
linked into a binary.
llvm-svn: 177784
2013-03-23 00:31:07 +00:00
fb74020cea
Revert 177745 as it was incorrect
...
llvm-svn: 177746
2013-03-22 18:16:57 +00:00
e117eef77f
Band-aid fix for the Windows build caused by r177710. Long-term, atomic_compare_exchange_strong should be a template on Windows too...
...
llvm-svn: 177745
2013-03-22 18:05:28 +00:00
9af68719ed
tsan: return 0 on malloc() failure instead of crashing
...
llvm-svn: 177741
2013-03-22 17:06:22 +00:00
ecbf64648f
[msan] Handle dlopen() failure in dlopen interceptor.
...
llvm-svn: 177728
2013-03-22 11:59:49 +00:00
3bd5ffb62b
tsan: test that tsan explicitly says "race on vptr".
...
Requires llvm r177717.
llvm-svn: 177726
2013-03-22 10:54:39 +00:00
667a34a120
[asan] Change the way we report the alloca frame on stack-buff-overflow.
...
Before: the function name was stored by the compiler as a constant string
and the run-time was printing it.
Now: the PC is stored instead and the run-time prints the full symbolized frame.
This adds a couple of instructions into every function with non-empty stack frame,
but also reduces the binary size because we store less strings (I saw 2% size reduction).
This change bumps the asan ABI version to v3.
compiler-rt part, llvm part will follow.
Example of report (now):
==31711==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffa77cf1c5 at pc 0x41feb0 bp 0x7fffa77cefb0 sp 0x7fffa77cefa8
READ of size 1 at 0x7fffa77cf1c5 thread T0
#0 0x41feaf in Frame0(int, char*, char*, char*) stack-oob-frames.cc:20
#1 0x41f7ff in Frame1(int, char*, char*) stack-oob-frames.cc:24
#2 0x41f477 in Frame2(int, char*) stack-oob-frames.cc:28
#3 0x41f194 in Frame3(int) stack-oob-frames.cc:32
#4 0x41eee0 in main stack-oob-frames.cc:38
#5 0x7f0c5566f76c (/lib/x86_64-linux-gnu/libc.so.6+0x2176c)
#6 0x41eb1c (/usr/local/google/kcc/llvm_cmake/a.out+0x41eb1c)
Address 0x7fffa77cf1c5 is located in stack of thread T0 at offset 293 in frame
#0 0x41f87f in Frame0(int, char*, char*, char*) stack-oob-frames.cc:12 <<<<<<<<<<<<<< this is new
This frame has 6 object(s):
[32, 36) 'frame.addr'
[96, 104) 'a.addr'
[160, 168) 'b.addr'
[224, 232) 'c.addr'
[288, 292) 's'
[352, 360) 'd'
llvm-svn: 177723
2013-03-22 10:36:24 +00:00
93a842bd1f
[msan] Move test main and gtest include to separate files.
...
llvm-svn: 177718
2013-03-22 09:01:26 +00:00
bfe9df221d
[msan] Place dlopen in an anon namespace.
...
llvm-svn: 177716
2013-03-22 08:49:36 +00:00
2f411641fe
tsan: work around FileCheck bug with empty outputs
...
llvm-svn: 177715
2013-03-22 08:48:34 +00:00
5d69168906
[msan] Get rid of "using std::string" in msandr.
...
llvm-svn: 177714
2013-03-22 08:47:42 +00:00
f1311dfce1
[ASan] fix-up for r177634 on Windows.
...
llvm-svn: 177711
2013-03-22 07:48:23 +00:00
a5eb3cb721
[ASan] Fix an error on invalid deallocation in ASan allocator. When ASan checks if memory freed by user was indeed previously allocated, it first does an atomic write to presumed location of chunk header. This is wrong, as if the free is invalid, we may overwrite some valuable data (like other fields of the chunk header). Fix this by using atomic_compare_exchange instead.
...
llvm-svn: 177710
2013-03-22 07:40:34 +00:00
a7e42b5be5
asan: fix lint warning about line length
...
llvm-svn: 177709
2013-03-22 07:29:59 +00:00
b30d11194c
ubsan: Pass floating-point arguments to the runtime by value if they fit the
...
value argument.
llvm-svn: 177689
2013-03-22 00:47:05 +00:00
1ea5b805ce
Don't forget to link in the C++-specific parts of the ubsan runtime when using the Makefile build system on Darwin.
...
llvm-svn: 177684
2013-03-22 00:01:44 +00:00
ebf63d0095
tsan: better reporting of thread leaks
...
1. do not report running threads as leaks
2. aggregate leaked threads by creation stack
llvm-svn: 177647
2013-03-21 16:55:17 +00:00
0851fa8819
tsan: better reporting for races on vptr
...
explicitly say "ctor/dtor vs virtual call"
llvm-svn: 177640
2013-03-21 15:37:39 +00:00
2c3b919ad3
tsan: add flag to control symbolizer flush frequency
...
llvm-svn: 177638
2013-03-21 13:01:50 +00:00
69c323d66f
tsan: intercept abort() to fflush() libc streams
...
llvm-svn: 177637
2013-03-21 12:50:43 +00:00
6911a7f1d1
tsan: remove bogus CHECK
...
Asynchronous signal (e.g. SIGABRT) can be received with any value of in_rtl.
llvm-svn: 177636
2013-03-21 12:44:44 +00:00
54afba8b62
[ASan] Switch ASan to generic ThreadRegistry from sanitizer_common. Delete ASan-specific AsanThreadRegistry.
...
llvm-svn: 177634
2013-03-21 11:23:41 +00:00
48e5d4a2d3
tsan: flush symbolizer cache if not symbolized for more than 5 seconds
...
llvm-svn: 177629
2013-03-21 07:02:36 +00:00
5e797a8e57
tsan: add a comment about magic numbers
...
llvm-svn: 177628
2013-03-21 06:28:04 +00:00
78693730a4
tsan: use a single background thread for memory profiler and memory flush (and later for symbolizer flush)
...
llvm-svn: 177627
2013-03-21 06:24:31 +00:00
b6f3905450
Per discussion on cxx-abi-dev, switch from comparing type_info objects to
...
comparing type_info names, since the latter have better uniqueness guarantees
in practice.
llvm-svn: 177618
2013-03-21 00:42:03 +00:00
e86b7b0bb9
Split ubsan runtime into three pieces (compiler-rt part):
...
* libclang_rt-san-* is sanitizer_common, and is linked in only if no other
sanitizer runtime is present.
* libclang_rt-ubsan-* is the piece of the runtime which doesn't depend on
a C++ ABI library, and is always linked in.
* libclang_rt-ubsan_cxx-* is the piece of the runtime which depends on a
C++ ABI library, and is only linked in when linking a C++ binary.
The Darwin ubsan runtime is unchanged.
For more details, see Clang change r177605.
llvm-svn: 177606
2013-03-20 23:49:17 +00:00
7184d34f96
Add declaration for linux.
...
llvm-svn: 177601
2013-03-20 23:21:08 +00:00
51a6ff5799
Create a coverage initialization function.
...
This function replaces the call of `atexit' from being generated in the compile
units. Basically, it registers the "writeout" and "flush" functions (if
present). It will generate calls to the `atexit' function for cleanups and final
writeout functions, but only once. This is better than checking for `main',
because a library may not have a `main' function in it.
<rdar://problem/12439551>
llvm-svn: 177578
2013-03-20 21:11:47 +00:00
6120bac6e6
tsan: correct sizes of signal-related data structures
...
llvm-svn: 177526
2013-03-20 14:57:28 +00:00
9f94dff7a6
tsan: add missing stat descriptions
...
llvm-svn: 177523
2013-03-20 14:04:23 +00:00
0954e9c01d
tsan: call fflush(0) on exit again
...
llvm-svn: 177522
2013-03-20 14:01:10 +00:00
c638a7127e
tsan: reduce size of mutexsets from 64 to 16 mutexes
...
overflow is handled anyway
saves memory because each thread holds 1024 mutexsets
llvm-svn: 177520
2013-03-20 13:50:47 +00:00
3330200d92
tsan: fix incorrect test
...
llvm-svn: 177519
2013-03-20 13:49:45 +00:00
b62c158d81
tsan: special handling of .rodata (don't try to find races, don't keep shadow, dont' put into traces)
...
llvm-svn: 177517
2013-03-20 13:21:50 +00:00
ccbdea956f
tsan: fix build
...
llvm-svn: 177513
2013-03-20 11:22:03 +00:00
79915de6af
tsan: move trace header into 0x600000000000 range
...
eliminat thread "dead info" altogether
llvm-svn: 177512
2013-03-20 10:31:53 +00:00
b6eace8a2f
tsan: add internal_unlink() function
...
llvm-svn: 177510
2013-03-20 10:28:36 +00:00
920b3b9a0c
[ASan] Move malloc stats collection away from AsanThreadRegistry class.
...
llvm-svn: 177508
2013-03-20 10:11:24 +00:00
31056968fc
asan/tsan: reduce per-thread memory allocator caches
...
256 blocks (which is 512 in reallity) seems to be too big cache,
reducing the size reduces memory consumption but does not degrade performance.
llvm-svn: 177502
2013-03-20 09:26:46 +00:00
cf025cb2e6
[ASan] Move GetCurrentThread/SetCurrentThread from AsanThreadRegistry class into plain functions: they don't actually use registry
...
llvm-svn: 177501
2013-03-20 09:23:28 +00:00
b7c68ee856
tsan: fix flaky test
...
llvm-svn: 177500
2013-03-20 09:22:13 +00:00
f6c4a7a2f5
tsan: fix incorrect test
...
llvm-svn: 177499
2013-03-20 09:21:49 +00:00
52b2d13245
[sanitizer] Enable prctl interceptor on Android.
...
llvm-svn: 177497
2013-03-20 07:35:52 +00:00
e647659d58
Add a way to register and execute "writeout" functions.
...
It may be prohibitively expensive to write out >1000 files at the same time. So
we would rather emit them serially. These functions allow the GCOV
implementation to register the functions that writeout the GCOV information per
compile unit. At exit, they are written.
<rdar://problem/12439551>
llvm-svn: 177436
2013-03-19 21:01:19 +00:00
9a8f0f55d5
[asan] s/ASAN_POSIX/SANITIZER_POSIX/
...
llvm-svn: 177407
2013-03-19 15:26:41 +00:00
95eaa21637
[sanitizer] More renamed macros.
...
llvm-svn: 177401
2013-03-19 14:54:17 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
...
llvm-svn: 177400
2013-03-19 14:33:38 +00:00
d3b56605f1
[sanitizer] Move ASan platform macros to sanitizer_common and rename them appropriately.
...
llvm-svn: 177397
2013-03-19 13:54:41 +00:00
45d2f96582
Don't use --sysroot to linux SDK when building libprofile - SDK on Linux seems to be incomplete.
...
llvm-svn: 177396
2013-03-19 13:34:23 +00:00
082afc8346
tsan: fix build
...
llvm-svn: 177395
2013-03-19 13:34:12 +00:00
4ecfa696e0
tsan: flush dead thread info earlier (when another thread is finished rather than new thread is created)
...
llvm-svn: 177394
2013-03-19 12:25:48 +00:00
9dd06ad47a
tsan: instruct malloc() to consume less memory
...
llvm-svn: 177393
2013-03-19 12:24:19 +00:00
f3fde82667
tsan: symbolizer "flush caches" support
...
llvm-svn: 177389
2013-03-19 10:24:01 +00:00
29f335ae80
tsan: symbolizer "flush caches" functinality
...
llvm-svn: 177388
2013-03-19 10:23:17 +00:00
509dab30ae
tsan: fix memory leak
...
llvm-svn: 177387
2013-03-19 10:22:33 +00:00
6d02c1c598
[sanitizer] Avoid use of uintptr_t.
...
llvm-svn: 177384
2013-03-19 09:39:15 +00:00
b4a218db34
[sanitizer] Don't adjust the size of the user-allocated stack.
...
Moved this code to sanitizer_common.
llvm-svn: 177383
2013-03-19 09:30:52 +00:00
4c17c1b157
Support CMake build of profile runtime library on Linux
...
llvm-svn: 177382
2013-03-19 09:17:35 +00:00
b59fa875ad
tsan: do not allocate sync vars on relaxed atomic operations
...
helps to reduce memory consumption if an atomic is used only with relaxed ops (stats)
llvm-svn: 177381
2013-03-19 09:15:31 +00:00
807e4dced5
Update ubsan test for clang change r177362.
...
llvm-svn: 177363
2013-03-19 00:04:20 +00:00
2428f167f7
Add some GCOV functions that register all of the __llvm_gcov_flush() functions.
...
The __llvm_gcov_flush() functions only work for the local compile unit. However,
when __gcov_flush() is called, the user expects all of the counters to be
flushed, not just the ones in the current compile unit.
This adds some library functions that register the flush functions. It also
defined __gcov_flush() so that loops through that list and calls the functions.
PR15191 & <rdar://problem/13167507>
llvm-svn: 177337
2013-03-18 22:59:47 +00:00
4ddd37ba5b
tsan: smaller memory block headers (32b->16b)
...
llvm-svn: 177312
2013-03-18 19:47:36 +00:00
61ce9560d4
tsan: add support for idle threads
...
llvm-svn: 177292
2013-03-18 17:21:15 +00:00
ce26a0aa92
tsan: touch less shadow memory during operations on big memory ranges
...
greatly reduces memory consumption
llvm-svn: 177289
2013-03-18 16:56:48 +00:00
2e7f29f042
tsan: mark shadow for thread stack as "don't need" when thread exits
...
llvm-svn: 177288
2013-03-18 15:49:07 +00:00
f123337275
tsan: better memory profiler
...
llvm-svn: 177286
2013-03-18 13:55:33 +00:00
15bee188c4
tsan: madvise(DONTNEED) shadow memory on munmap()
...
llvm-svn: 177278
2013-03-18 11:51:51 +00:00
9138f75d0a
[asan] make the __asan_get_heap_size more robust
...
llvm-svn: 177270
2013-03-18 10:52:25 +00:00
20bf8c7778
tsan: move implementation out of h file
...
llvm-svn: 177269
2013-03-18 10:32:21 +00:00
49e462fab2
tsan: fix clang -Wall build
...
Clang does not like classes with virtual functions but w/o virtual dtor.
Go does not like libstdc++ (operator delete).
llvm-svn: 177267
2013-03-18 10:10:15 +00:00
b5d10f69e4
[TSan] re-apply r177249 lost in edits
...
llvm-svn: 177265
2013-03-18 09:45:22 +00:00
6488b2b257
[asan] Switch to allocator2 on Android.
...
llvm-svn: 177263
2013-03-18 09:22:58 +00:00
a1bdd2d942
tsan: fix memory leak
...
llvm-svn: 177262
2013-03-18 09:09:41 +00:00
7cd2025c4d
tsan: use StackDepot for thread creation stacks
...
llvm-svn: 177261
2013-03-18 09:02:27 +00:00
50160030e1
tsan: fix Go build
...
llvm-svn: 177260
2013-03-18 08:52:46 +00:00
a221620b2e
tsan: use StackDepot in sync object to store creation stacks
...
llvm-svn: 177258
2013-03-18 08:27:47 +00:00
6f7ca81cce
tsan: fix huge stack frames
...
llvm-svn: 177255
2013-03-18 08:09:42 +00:00
c4722a65a5
[asan] while generating the description of a global variable, emit the module name in a separate field, thus not duplicating this information if every description. This decreases the binary size (observed up to 3%). https://code.google.com/p/address-sanitizer/issues/detail?id=168 . This changes the asan API version. compiler-rt part, llvm-part will follow
...
llvm-svn: 177253
2013-03-18 08:04:55 +00:00
0f2c7ea5d0
tsan: fix lint warnings
...
llvm-svn: 177251
2013-03-18 07:58:20 +00:00
cbed82ea70
[TSan] fix undefined variable in debug TSan build
...
llvm-svn: 177249
2013-03-18 07:33:00 +00:00
4f1c8a13d5
[TSan] Use ThreadRegistry::FindThreadContextLocked() to find thread by its stack/tls address.
...
llvm-svn: 177248
2013-03-18 07:02:08 +00:00
e1955b851d
[TSan] Makefiles: allow configurable paths to clang and FileCheck. Add -fno-rtti flag.
...
llvm-svn: 177247
2013-03-18 07:00:36 +00:00
f9dbbda5bc
[Sanitizer] Get rid of global mutexes in StopTheWorld implementation
...
llvm-svn: 177246
2013-03-18 06:27:13 +00:00
e25c72958a
[Sanitizer] Rely on template argument deduction in sanitizer_allocator_test
...
llvm-svn: 177245
2013-03-18 06:07:44 +00:00
845b575370
[libsanitizer] StopTheWorld in sanitizer_common
...
StopTheWorld puts the process in a suspended state before running the
user-supplied callback. To be used in TSan and in leak checking code.
Linux implementation provided.
Patch by Sergey Matveev (earthdok@google.com )
llvm-svn: 177156
2013-03-15 14:37:21 +00:00
3a6b6b9d55
[Sanitizer] Don't intercept frexpf and frexpl on Windows. Add frexp declaration to asan_intercepted_functions.h
...
llvm-svn: 177155
2013-03-15 14:02:21 +00:00
9aecdfe34d
[TSan] Switch TSan runtime to use ThreadRegistry class from sanitizer_common
...
llvm-svn: 177154
2013-03-15 13:48:44 +00:00
e4385c4b98
[Sanitizer] Don't link tests with -lpthread on Android.
...
llvm-svn: 177151
2013-03-15 12:54:01 +00:00
96a7620f3a
[sanitizer] fix gcc build warnings
...
llvm-svn: 177149
2013-03-15 12:27:52 +00:00
b941a2fca4
[asan] Add ForEachChunk() to sanitizer allocators. Patch by Sergey Matveev
...
llvm-svn: 177147
2013-03-15 11:39:41 +00:00
cdd46d9ccc
[Sanitizer] Generalize compile/link flags for sanitizer_common tests on Android and on other platforms.
...
llvm-svn: 177146
2013-03-15 10:39:26 +00:00
337b0fcf9c
[Sanitizer] Build sanitizer_common tests w/o RTTI. Move ThreadRegistry class members below methods.
...
llvm-svn: 177143
2013-03-15 07:08:52 +00:00
d3c993b396
Fix a virtual destructor warning.
...
Patch by Manuel Klimek!
llvm-svn: 177132
2013-03-15 00:20:17 +00:00
d1999a1ccc
[Sanitizer] Fix compiler warnings and style issues in sanitizer_common tests. Use -Werror=sign-compare when building them.
...
llvm-svn: 177077
2013-03-14 15:15:35 +00:00
1cb684381a
[Sanitizer] Add generic ThreadRegistry class for sanitizer runtimes. This class holds basic thread bookkeeping logic and allows specific sanitizer runtimes to create thread contexts and mark threads as created/running/joined etc. The class is based on the way we currently store thread contexts in TSan.
...
llvm-svn: 177074
2013-03-14 13:54:30 +00:00
a097f7b1e3
[Sanitizer] Add default constructor for BlockingMutex
...
llvm-svn: 177072
2013-03-14 13:30:56 +00:00
8d487b4407
[sanitizer] No dirent64 on Android.
...
llvm-svn: 177071
2013-03-14 13:24:03 +00:00
3d09fdbf21
[Sanitizer] Build sanitizer_common with -fno-rtti
...
llvm-svn: 177070
2013-03-14 13:16:35 +00:00
d332d42372
[asan] remove one redundant malloc stress test, unify the usage of ASAN_LOW_MEMORY macro in tests, slightly reduce test memory usage (all to make 32-bit runs consume less RAM)
...
llvm-svn: 177069
2013-03-14 13:16:09 +00:00
34e1171768
[libsanitizer] fixed a bug in ThreadLister tests where we forgot to terminate one thread
...
Patch by Sergey Matveev (earthdok@google.com )
llvm-svn: 177068
2013-03-14 13:15:14 +00:00
740e6ebe71
[msan] Add changes missing from r177065.
...
llvm-svn: 177067
2013-03-14 13:13:49 +00:00
c6bce93591
[msan] Intercept readdir64.
...
llvm-svn: 177065
2013-03-14 12:49:23 +00:00
1dc928e1b1
[ASan] remove -fsanitize=init-order from lit tests as now it's implied by -fsanitize=address
...
llvm-svn: 177064
2013-03-14 12:43:03 +00:00
ac3bbb3ef3
[libsanitizer] Fixed incorrect handling of pre-existing threads in ThreadLister test.
...
Also, extended the test to check that ThreadLister::Reset() works as intended.
Patch by Sergey Matveev (earthdok@google.com )
llvm-svn: 177060
2013-03-14 12:06:54 +00:00
4062a396c7
[msan] Fix a typo in test.
...
llvm-svn: 177059
2013-03-14 11:58:13 +00:00
963be1ddd8
[ASan] turn off checking initialization order in ASan runtime by default. Instead, it should be turned on by default in the compiler
...
llvm-svn: 177058
2013-03-14 11:49:40 +00:00
fe0199ea54
[msan] Options for switching between fast and cfi unwinders in run time.
...
Does not change default behavior.
llvm-svn: 177057
2013-03-14 11:47:03 +00:00
231894a902
[sanitizer] Intercept frexp and friends.
...
llvm-svn: 177056
2013-03-14 11:34:39 +00:00
7d2385419a
[Sanitizer] fix compilation for Windows
...
llvm-svn: 177054
2013-03-14 11:29:06 +00:00
ead6cf7c72
[msan] Intercept __strdup, strndup, __strndup.
...
llvm-svn: 177052
2013-03-14 11:10:36 +00:00
83e7622df6
[Sanitizer] Write a slightly better implementation of GetEnv() function on Windows
...
llvm-svn: 177051
2013-03-14 11:10:23 +00:00
140cd84155
[ASan] make ASan assume ASAN_OPTIONS=symbolize=1 if ASAN_EXTERNAL_SYMBOLIZER is defined
...
llvm-svn: 177036
2013-03-14 10:07:40 +00:00
41a560b8cd
[TSan] Add missing header inclusion
...
llvm-svn: 177013
2013-03-14 07:13:00 +00:00
109ddd0fe4
[TSan] Use __sanitizer_pthread_attr_t in TSan
...
llvm-svn: 177012
2013-03-14 07:10:52 +00:00
2325273641
[msan] Clean up extensions during msandr shutdown
...
Otherwise debug DynamoRIO complains at us for leaking memory.
llvm-svn: 176947
2013-03-13 13:59:09 +00:00
96f82f8ac3
[sanitizer] Fix lint.
...
llvm-svn: 176943
2013-03-13 10:20:35 +00:00
d7ab381f53
[Sanitizer] Build ASan, TSan and MSan runtimes with -fno-rtti.
...
llvm-svn: 176940
2013-03-13 09:18:30 +00:00
98f5ea0dba
[msan] Increase stack size as required.
...
Adjust stack size in pthread_attr_t when the app-requested size does not fit MSan TLS.
llvm-svn: 176939
2013-03-13 09:01:40 +00:00
5697b58ec4
[sanitizer] Move GetTlsSize code from TSan to sanitizer_common.
...
llvm-svn: 176938
2013-03-13 08:19:53 +00:00
24aad9c0cb
Break a >80 char line.
...
llvm-svn: 176937
2013-03-13 08:17:39 +00:00
91f833a413
[Sanitizer] Fixup for r176931 for Mac and Windows
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llvm-svn: 176935
2013-03-13 07:39:25 +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
67b1478914
[asan] use 4Tb of address space for the asan allocator instead of 1Tb. This increases the memory available for a single size class from 16Gb to 64Gb. The total VM footprint becomes 20Tb
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llvm-svn: 176857
2013-03-12 09:04:49 +00:00
138b155042
[sanitizer] use fewer size classes in the allocator to reduce the memory footprint. There is no all-size-fits-all constant here, but this change is positive or neutral on several large apps I've tested
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llvm-svn: 176855
2013-03-12 08:44:40 +00:00
26d5bc7fdf
[msan] Use sptr instead of ptrdiff_t.
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llvm-svn: 176854
2013-03-12 07:21:17 +00:00
ba56c8d4f9
[sanitizer] simplify the allocator's SizeClassMap: do not require an extra template parameter, instead compute it in flight. No functionality change
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llvm-svn: 176853
2013-03-12 07:01:27 +00:00
c9d382b5a4
[msan] intercept dlopen and clear shadow for it
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Summary:
The loader does not call mmap() through the PLT because it has to
bootstrap the process before libc is present. Hooking dlopen() isn't
enough either because the loader runs module initializers before
returning, and they could run arbitrary msan instrumented code.
If msandr is present, then we can intercept the mmaps from dlopen at the
syscall layer and clear the shadow there. If msandr is missing, we
clear the shadow after dlopen() and hope any initializers are trivial.
Reviewers: eugenis
CC: kcc, llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D509
llvm-svn: 176818
2013-03-11 18:07:42 +00:00
db7d9656bb
[Sanitizer] Implement BlockingMutex::CheckLocked()
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llvm-svn: 176805
2013-03-11 15:45:20 +00:00
1f78ad5da4
[ASan] Reduce the local buffer size in Report() not to fail the check enforced when building TSan runtime.
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llvm-svn: 176804
2013-03-11 13:36:39 +00:00
18c916c6c5
[ASan] Try to use a small (512 bytes) stack-local buffer in Report() for short messages, fall back to MmapOrDie() in the case of a failure.
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This shall eliminate most of the cryptic "ERROR: failed to mmap" messages caused by recursively calling MmapOrDie() from MmapOrDie().
llvm-svn: 176802
2013-03-11 11:47:43 +00:00
92cc1a6d24
[ASan] don't call strerr from functions that map memory, since this results in malloc().
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llvm-svn: 176800
2013-03-11 10:21:28 +00:00
0f5c20b417
[sanitizer] make SizeClassAllocator64::GetBlockBegin more bullet proof (by Sergey Matveev)
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llvm-svn: 176799
2013-03-11 09:43:12 +00:00
593eeb000a
Don't emit the extra checksum into the .gcda file if the user hasn't asked for
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it. Fortunately, versions of gcov that predate the extra checksum also ignore
any extra data, so this isn't a problem. This matches the API change made in
r176745.
llvm-svn: 176746
2013-03-09 01:33:12 +00:00
8015c6ee2f
Take the GCDA version string as an input to llvm_gcda_start_file.
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llvm-svn: 176618
2013-03-07 08:28:54 +00:00
063dfe3244
[msan] Block reports from interceptors during _Unwind_Backtrace
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Summary:
I'm hitting a big recursive report from:
uninit on strlen ->
__msan::PrintWarningWithOrigin() ->
__msan::GetStackTrace() ->
__sanitizer::StackTrace::SlowUnwindStack() ->
_Unwind_Backtrace() ->
... libgcc calls ->
uninit on strlen() ->
... repeats
Reviewers: eugenis
Differential Revision: http://llvm-reviews.chandlerc.com/D497
llvm-svn: 176555
2013-03-06 16:11:58 +00:00
c193da57b8
[msan] pthread_join() returns int, not void*
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pthread_join() returns an error code, not the result of the
pthread_create() function like I thought.
llvm-svn: 176554
2013-03-06 15:41:35 +00:00
66c26e5e96
[sanitizers] Fix check failure on dealloc from new thread
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Summary:
Adds a test for this case, which was reduced from a chromium build of
WebKit's DumpRenderTree.
Reviewers: eugenis
CC: glider
Differential Revision: http://llvm-reviews.chandlerc.com/D495
llvm-svn: 176552
2013-03-06 14:54:08 +00:00
dcb0e72e6f
[Sanitizer] fix signed-unsigned mismatch in test and use correct order of EXPECT_EQ() args
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llvm-svn: 176479
2013-03-05 12:23:07 +00:00
434dde9996
[Sanitizer] Add methods back() and pop_back() to InternalVector. Patch by Sergey Matveev
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llvm-svn: 176478
2013-03-05 11:58:25 +00:00
2b9a65e4c4
update how libcompiler_rt.dylib links under libSystem.dylib on MacOSX
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llvm-svn: 176466
2013-03-05 00:16:52 +00:00
f5d8c90f57
[asan] Revert r176255, r176264.
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New allocator has 1.5x memory overhead of the old one.
llvm-svn: 176340
2013-03-01 09:33:05 +00:00
323771b3f1
[sanitizer] Fix check failure in SizeClassMap::Print.
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llvm-svn: 176338
2013-03-01 08:49:14 +00:00
3305b177e6
[asan] Lower memory usage in LargeMallocTest on Android.
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llvm-svn: 176264
2013-02-28 15:54:58 +00:00
f1c48eb509
[ASan] Add the memcmp_strict flag (1 by default) that controls the behavior of accessibility checks in memcmp.
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1: memcmp(p1, p2, n) always checks n bytes
0: memcmp checks up to n bytes depending on whether the memory contents differ.
llvm-svn: 176256
2013-02-28 14:09:30 +00:00
1cb95a17b8
[asan] Enable allocator2 on Android.
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llvm-svn: 176255
2013-02-28 14:07:01 +00:00
abebb57272
[asan] bump kMidMemEnd to 0x4fffffffffULL since in rare cases prelink uses addresses higher than 0x3fffffffff
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llvm-svn: 176250
2013-02-28 12:28:37 +00:00
4a3234bec5
[Sanitizer] Relax ThreadLister tests to allow possible pre-existing threads. Do proper mutex destruction. Patch by Sergey Matveev
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llvm-svn: 176249
2013-02-28 11:33:51 +00:00
Alexey Samsonov