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.
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llvm-svn: 214296
2014-07-30 09:48:23 +00:00
f37bd92c3a
[asan] Move the "coverage" flag to common flags.
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The implementation lives in sanitizer_common and will need to access that flag.
llvm-svn: 208566
2014-05-12 14:27:36 +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.
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llvm-svn: 207415
2014-04-28 12:47:58 +00:00
e91930a7e6
[asan] implement an experimental detector of ODR violations. Not tested yet outside of a tiny test, may need tuning.
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llvm-svn: 207210
2014-04-25 08:58:28 +00:00
38bb53b2c5
[asan] add a run-time flag detect_container_overflow=true/false
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llvm-svn: 206753
2014-04-21 14:18:45 +00:00
c6afaace15
[ASan] Move the flag descriptions from comments to ParseFlag arguments.
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llvm-svn: 204440
2014-03-21 08:37:59 +00:00
796f6557bf
[asan] *experimental* implementation of invalid-pointer-pair detector (finds when two unrelated pointers are compared or subtracted). This implementation has both false positives and false negatives and is not tuned for performance. A bug report for a proper implementation will follow.
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llvm-svn: 202389
2014-02-27 12:45:36 +00:00
cf4bef3161
[ASan] Move the signal handling-related flags to sanitizer_common.
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This change is a part of refactoring intended to have common signal handling behavior in all tools.
llvm-svn: 200295
2014-01-28 09:28:57 +00:00
c61623b170
[asan] Implement delayed activation of AddressSanitizer
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This change adds ASAN_OPTIONS=start_deactivated=1 flag. When present, ASan will
start in "deactivated" mode, with no heap poisoning, no quarantine, no stack
trace gathering, and minimal redzones. All this features come back when
__asan_init is called for the constructor of an instrumented library.
The primary use case for this feature is Android. Code itself is not
Android-specific, and this patch includes a Linux test for it.
llvm-svn: 199377
2014-01-16 12:31:50 +00:00
219719a2da
[asan] Implement max_redzone runtime flag.
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llvm-svn: 198873
2014-01-09 14:41:03 +00:00
1aedf6c9e6
[asan] replace the flag uar_stack_size_log with two flags min_uar_stack_size_log/max_uar_stack_size_log
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llvm-svn: 197370
2013-12-16 08:42:08 +00:00
57bfdb080b
[asan] add flag uar_noreserve to use noreserve mmap for fake stack. uar_noreserve=1 will save some memory but also negatively affect performance
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llvm-svn: 197233
2013-12-13 15:03:49 +00:00
a08e9ac927
Reapply asan coverage changes 194702-194704.
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I still don't know what is causing our bootstrapped LTO buildbots to fail,
but llvm r194701 seems to be OK and I can't imagine that these changes could
cause the problem.
llvm-svn: 194790
2013-11-15 07:18:15 +00:00
abc91eacac
Speculatively revert asan coverage changes 194702-194704.
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Apple's bootstrapped LTO builds have been failing, and these changes (along
with llvm 194701) are the only things on the blamelist. I will either reapply
these changes or help debug the problem, depending on whether this fixes the
buildbots.
llvm-svn: 194779
2013-11-15 03:26:28 +00:00
91c52d9552
[asan] Poor man's coverage that works with ASan (compiler-rt part)
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llvm-svn: 194702
2013-11-14 13:28:17 +00:00
c5e1b16d0c
[ASan] Kill use_stack_depot runtime flag and stack trace compression routines.
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llvm-svn: 193868
2013-11-01 17:23:22 +00:00
442c4e4b1a
[asan] introduce run-time flag 'poison_partial'
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llvm-svn: 192793
2013-10-16 13:49:01 +00:00
52ca74ec61
tsan: move verbosity flag to CommonFlags
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llvm-svn: 192701
2013-10-15 13:28:51 +00:00
3c42ce1516
[asan] introduce run-time flag uar_stack_size_log to control the size of FakeStack; don't crash when the fake stack is exhausted, move some code to .cc file
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llvm-svn: 191510
2013-09-27 11:37:23 +00:00
c3d43ca3ec
[asan] add a run-time option detect_stack_use_after_return, add verbosity output for fake stack
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llvm-svn: 190932
2013-09-18 10:35:12 +00:00
9c012165ad
[lsan] Make __lsan_do_leak_check() honor the detect_leaks flag.
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Also move detect_leaks to common flags.
llvm-svn: 186821
2013-07-22 12:38:17 +00:00
982d56abb8
[sanitizer] Move log_path to common flag and use it in MSan.
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llvm-svn: 184836
2013-06-25 13:50:44 +00:00
8c235f40d7
[asan] LSan hooks in asan_rtl.
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llvm-svn: 182384
2013-05-21 14:15:35 +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
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
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
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
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
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
358698279d
[sanitizer] Further split private and public sanitizer headers.
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And make msan_interface.h C-compatible.
llvm-svn: 173928
2013-01-30 13:12:08 +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
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
3674c6b13b
[asan] add a flag alloc_dealloc_mismatch (off by default for now) which finds malloc/delete, new/free, new/delete[], etc mismatches
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llvm-svn: 170869
2012-12-21 08:53:59 +00:00
9da3dd0415
[asan] add a flag poison_heap to allow better allocator benchmarking, implemenet malloc_stats() on Linux
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llvm-svn: 170685
2012-12-20 11:54:21 +00:00
baf583c443
[asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder
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llvm-svn: 170117
2012-12-13 09:34:23 +00:00
45d849c4bd
[asan] add asan option log_path=PATH to let users redirect asan reports to a file PATH.PID instead of stderr
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llvm-svn: 163872
2012-09-14 04:35:14 +00:00
c402cb62fd
[ASan] Add print_full_thread_history runtime option (on by default) that prints all full thread creation paths for threads involved in ASan error report
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llvm-svn: 163200
2012-09-05 07:37:15 +00:00
1aa4fef601
Relocate the external headers provided by ASan and the common sanitizer
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library.
These headers are intended to be available to user code when built with
AddressSanitizer (or one of the other sanitizer's in the future) to
interface with the runtime library. As such, they form stable external
C interfaces, and the headers shouldn't be located within the
implementation.
I've pulled them out into what seem like fairly obvious locations and
names, but I'm wide open to further bikeshedding of these names and
locations.
I've updated the code and the build system to cope with the new
locations, both CMake and Makefile. Please let me know if this breaks
anyone's build.
The eventual goal is to install these headers along side the Clang
builtin headers when we build the ASan runtime and install it. My
current thinking is to locate them at:
<prefix>/lib/clang/X.Y/include/sanitizer/common_interface_defs.h
<prefix>/lib/clang/X.Y/include/sanitizer/asan_interface.h
<prefix>/lib/clang/X.Y/include/sanitizer/...
But maybe others have different suggestions?
Fixing the style of the #include between these headers at least unblocks
experimentation with installing them as they now should work when
installed in these locations.
llvm-svn: 162822
2012-08-29 02:27:54 +00:00
fefc1e989c
If the program is linked to a dynamic ASan runtime which is not present in DYLD_INSERT_LIBRARIES
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(which, in turn, is required for our interceptors to take effect), re-exec the program with
DYLD_INSERT_LIBRARIES set.
llvm-svn: 162547
2012-08-24 09:22:05 +00:00
676bcdb838
[asan] run-time part of the initialization order checker. Patch by Reid Watson with some bits from kcc. The sub-pass is off by default for now. On simple tests it works fine.
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llvm-svn: 162278
2012-08-21 14:10:25 +00:00
682a07cbe1
[ASan] move declaration of __asan_default_options to interface header
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llvm-svn: 161932
2012-08-15 07:11:14 +00:00
eb39adc9fa
[ASan] make sure __asan_default_options gets default visibility, port corresponding test to lit
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llvm-svn: 161869
2012-08-14 13:54:28 +00:00
0295edbfd5
[ASan] add new ASan option 'strip_path_prefix' to remove useless prefices from filenames in stack traces
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llvm-svn: 161321
2012-08-06 13:00:21 +00:00
c145b02607
[ASan] fixup for r160712: provide a default definition for weak __asan_default_options()
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llvm-svn: 160718
2012-07-25 10:40:57 +00:00
9bac1cedbc
Make __asan_default_options a weak function that returns a const char*.
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Users may define it to override the default ASan options.
This function has to be marked with __attribute__((no_address_safety_analysis)), because it is called before ASan is fully initialized.
Add an output test checking the __asan_default_options functionality.
llvm-svn: 160712
2012-07-25 09:18:43 +00:00
9f666ea6ca
[ASan] move flags description to separate header, add comments about them.
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llvm-svn: 159985
2012-07-10 07:41:27 +00:00
Kostya Serebryany