09886cd17a
[asan] Make ASan report the correct thread address ranges to LSan.
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This CL enables thread support in LSan when used on top of ASan.
llvm-svn: 182854
2013-05-29 13:09:44 +00:00
49eb5700e2
Revert r182465 and add lsan-common library to makefile-based build
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llvm-svn: 182470
2013-05-22 13:20:37 +00:00
155dd46e04
[ASan] Temporary remove leak checking from ASan, while we don't have makefile-based build for LSan
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llvm-svn: 182465
2013-05-22 12:44:57 +00:00
8410a867eb
[asan] workaround for asan bug 189 (swapcontext followed by throw gets OOM kill). Also, disable swapcontext_test on non-x86. Fix lint
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llvm-svn: 182456
2013-05-22 08:54:30 +00:00
20ccf95f80
[lsan] Invoke leak detection with atexit().
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Keeps it consistent between ASan and LSan.
llvm-svn: 182399
2013-05-21 17:56:45 +00:00
17f5705d3c
[asan] Do not invoke LSan hooks unless CAN_SANITIZE_LEAKS.
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llvm-svn: 182389
2013-05-21 15:35:34 +00:00
8c235f40d7
[asan] LSan hooks in asan_rtl.
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llvm-svn: 182384
2013-05-21 14:15:35 +00:00
ffaf2eac4d
[nolibc] Move all platforms to internal_getpid.
...
Before, we had an unused internal_getpid function for Linux, and a
platform-independent GetPid function. To make the naming conventions
consistent for syscall-like functions, the GetPid syscall wrapper
in sanitizer_posix.cc is moved to sanitizer_mac.cc, and GetPid is
renamed to internal_getpid, bringing the Linux variant into use.
llvm-svn: 182132
2013-05-17 16:56:53 +00:00
aaf7275677
[asan] symbolize when possible, even if ASAN_SYMBOLIZER_PATH is not provided. On Linux this will use dl_iterate_phdr instead of /proc/self/maps, even if the symbolizer is not installed
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llvm-svn: 182005
2013-05-16 13:04:29 +00:00
0c8ed9ce44
[asan] Common flags in ASan.
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Some flags that are common to ASan/MSan/TSan/LSan have been moved to
sanitizer_common.
llvm-svn: 181193
2013-05-06 11:27:58 +00:00
5c38383205
[ASan] Add allow_user_segv_handler to let users override SEGV handler installed by ASan
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llvm-svn: 180255
2013-04-25 10:52:15 +00:00
dcf0ade114
[ASan] Make init-order checker allow access to already initialized globals.
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This change adds ASan runtime option "strict-init-order" (off by default)
that makes init-order checker bark if global initializer accesses any global from different
translation unit (even if the latter is already initialized). strict init-order checking
doesn't play well with, e.g. LLVM registration machineries, and causes issue
https://code.google.com/p/address-sanitizer/issues/detail?id=178 .
llvm-svn: 179843
2013-04-19 08:35:16 +00:00
0136943e03
[asan] Fix spelling in asan_rtl.cc Test commit.
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Reviewers: kcc, glider, samsonov
Reviewed By: glider
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D676
llvm-svn: 179595
2013-04-16 14:58:45 +00:00
fd27b83ef2
[asan] inline flags(), up to 1% perf gain on malloc-intensive code
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llvm-svn: 179307
2013-04-11 18:36:04 +00:00
5b4267f7e7
[sanitizer] found a bug by code inspection: CHECK(a=b) instead of CHECK(a==b). Was puzzled why lint did not catch it. Turns out this check was disabled for asan source. fix all cases and enable the check
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llvm-svn: 178872
2013-04-05 14:40:25 +00:00
eef8bd4355
[asan] nuke the old unused allocator code
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llvm-svn: 178758
2013-04-04 11:32:49 +00:00
13b07733b1
[asan] fill first 4K of malloc-ed memory with garbage, implement flags max_malloc_fill_size and malloc_fill_byte
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llvm-svn: 178757
2013-04-04 11:17:14 +00:00
a88c60b085
[ASan] Speed-up initialization-order checking: create and use fast versions of PoisonShadow functions, store copies of __asan_global descriptors in a vector instead of list of pointers. This gives 3x speedup on both benchmarks and real binaries with lots of globals.
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llvm-svn: 178239
2013-03-28 15:42:43 +00:00
e586170e86
Fix unmatching ASan runtime flag for init-order checking exposed by r178158. Add a test for r178158.
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llvm-svn: 178229
2013-03-28 09:11:20 +00:00
56a784d2f6
[ASan] Change the ABI of __asan_before_dynamic_init function: now it takes pointer to private string with module name. This string serves as a unique module ID in ASan runtime. compiler-rt part
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llvm-svn: 178014
2013-03-26 13:06:12 +00:00
54afba8b62
[ASan] Switch ASan to generic ThreadRegistry from sanitizer_common. Delete ASan-specific AsanThreadRegistry.
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llvm-svn: 177634
2013-03-21 11:23:41 +00:00
cf025cb2e6
[ASan] Move GetCurrentThread/SetCurrentThread from AsanThreadRegistry class into plain functions: they don't actually use registry
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llvm-svn: 177501
2013-03-20 09:23:28 +00:00
d3b56605f1
[sanitizer] Move ASan platform macros to sanitizer_common and rename them appropriately.
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llvm-svn: 177397
2013-03-19 13:54:41 +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
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llvm-svn: 177058
2013-03-14 11:49:40 +00:00
140cd84155
[ASan] make ASan assume ASAN_OPTIONS=symbolize=1 if ASAN_EXTERNAL_SYMBOLIZER is defined
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llvm-svn: 177036
2013-03-14 10:07:40 +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
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
1d63d13ce2
[asan] move the .preinit_array hack into a separate file (added used attribute)
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llvm-svn: 175871
2013-02-22 07:51:26 +00:00
97781c4dd0
[ASan] temporarily disable alloc_dealloc_mismatch on Mac, since the previous commit caused error reports in gTest.
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llvm-svn: 175766
2013-02-21 17:12:21 +00:00
d8c29210e5
[asan] on linux, run __asan_init from .preinit_array (even earlier than before)
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llvm-svn: 175623
2013-02-20 14:28:08 +00:00
aadd1f2ad6
[Sanitizer] use raw syscall instead of _exit() function on Linux
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llvm-svn: 175622
2013-02-20 13:54:32 +00:00
0b07c63e07
[ASan] Allow ASan default runtime options be overriden at compile time by providing ASAN_DEFAULT_OPTIONS macro
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llvm-svn: 175512
2013-02-19 13:14:48 +00:00
9f298da9bd
[asan] instrument memory accesses with unusual sizes
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This patch makes asan instrument memory accesses with unusual sizes (e.g. 5 bytes or 10 bytes), e.g. long double or
packed structures.
Instrumentation is done with two 1-byte checks
(first and last bytes) and if the error is found
__asan_report_load_n(addr, real_size) or
__asan_report_store_n(addr, real_size)
is called.
asan-rt part
Also fix lint.
llvm-svn: 175508
2013-02-19 11:30:25 +00:00
fd61b6f0c8
[asan] make asan work with 7fff8000 offset and prelink
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When prelink is installed in the system, prelink-ed
libraries map between 0x003000000000 and 0x004000000000 thus occupying the shadow Gap,
so we need so split the address space even further, like this:
|| [0x10007fff8000, 0x7fffffffffff] || HighMem ||
|| [0x02008fff7000, 0x10007fff7fff] || HighShadow ||
|| [0x004000000000, 0x02008fff6fff] || ShadowGap3 ||
|| [0x003000000000, 0x003fffffffff] || MidMem ||
|| [0x00087fff8000, 0x002fffffffff] || ShadowGap2 ||
|| [0x00067fff8000, 0x00087fff7fff] || MidShadow ||
|| [0x00008fff7000, 0x00067fff7fff] || ShadowGap ||
|| [0x00007fff8000, 0x00008fff6fff] || LowShadow ||
|| [0x000000000000, 0x00007fff7fff] || LowMem ||
Do it only if necessary.
Also added a bit of profiling code to make sure that the
mapping code is efficient.
Added a lit test to simulate prelink-ed libraries.
Unfortunately, this test does not work with binutils-gold linker.
If gold is the default linker the test silently passes.
Also replaced
__has_feature(address_sanitizer)
with
__has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
in two places.
Patch partially by Jakub Jelinek.
llvm-svn: 175263
2013-02-15 12:00:24 +00:00
c192af29f5
[ASan] Remove the replace_cfallocator flag, which is used no more.
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See https://code.google.com/p/address-sanitizer/issues/detail?id=10 for the context.
llvm-svn: 174629
2013-02-07 15:59:37 +00:00
dc91edad59
[ASan] Enable alloc_dealloc_mismatch by default on Darwin.
...
Enable AddressSanitizer.AllocDeallocMismatch tests.
llvm-svn: 174628
2013-02-07 15:55:21 +00:00
bda64b4d40
[sanitizer] make the error messages from sanitizer_common contain the actual tool name
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llvm-svn: 174059
2013-01-31 14:11:21 +00:00
a0c0da8f51
[ASan] Split ASan interface header into private and public parts. Add a test that makes sure users can include interface header
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llvm-svn: 174058
2013-01-31 13:46:14 +00:00
61761f182b
[asan] fix a crash in asan stats printing (initialize the allocator in __asan_init)
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llvm-svn: 173676
2013-01-28 08:05:47 +00:00
6c17547ef1
[asan] two more internal flags for asan-rt: print_stats (0) and print_legend (1)
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llvm-svn: 173671
2013-01-28 07:34:22 +00:00
8f267137c2
[asan] initialize kHighMemEnd at startup (instead of at compile time) to simplify further changes for various address space layouts. Fix asan_allocator2 for PowerPC (tested on 44-bit address space)
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llvm-svn: 173260
2013-01-23 13:27:43 +00:00
84c7e47b5c
[asan] kill some dead code
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llvm-svn: 172815
2013-01-18 13:01:44 +00:00
b05fc3a493
[asan] use the slow CFI-based unwinder when reporting an error. Still use the fast unwinder for malloc/free. Linux-x86-only for now.
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llvm-svn: 172397
2013-01-14 11:01:34 +00:00
aaa50f06d4
ASan: Disable alloc/dealloc-mismatch checker on Mac for now (it produces weird false positives on googletest)
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llvm-svn: 172394
2013-01-14 10:18:38 +00:00
f22982bf0a
asan/tsan: move blocking mutex from asan to sanitizer_common
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llvm-svn: 172380
2013-01-14 07:51:39 +00:00
b3d04ede8c
[asan] add a new interface function __asan_describe_address, useful for running asan-ified binary under a debugger (e.g. gdb)
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llvm-svn: 171217
2012-12-29 10:18:31 +00:00
cb510e50e2
[asan] implement more strict checking for memset/etc parameters. Instead of checking the first and the last byte, we check the entire shadow region. This costs ~10 slowdown for the instrumented functions. Motivated by a nasty memset-buffer-overflow-by-140-bytes in chrome which was reported as a use-after-free or not at all
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llvm-svn: 171198
2012-12-28 15:24:16 +00:00
1302e8d6da
[asan] enable alloc_dealloc_mismatch by default
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llvm-svn: 171147
2012-12-27 08:08:05 +00:00
35cc75876a
[asan] asan_allocator2: implement adaptive redzones. Now with asan_allocator2 allocations <= 48 bytes have 16 byte redzone, allocations of 48-96 bytes -- have 32 bytes redzone, etc (max redzone is 2048). If ASAN_OPTIONS=redzone=n is set, it changes the minimal redzone size
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llvm-svn: 171107
2012-12-26 10:41:24 +00:00
a11cd57a78
[asan] asan_allocator2: by default use the StackDepot to store the stack traces instead of storing them in the redzones
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llvm-svn: 171099
2012-12-26 06:30:02 +00:00
Sergey Matveev