6f3fa20c76
[ASan] Retire mac_ignore_invalid_free, remove some dead code.
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mac_ignore_invalid_free was helpful when ASan runtime used to intercept
CFAllocator and sometimes corrupted its memory. This behavior had been long
gone, and the flag was unused.
This patch also deletes ReportMacCfReallocUnknown(), which was used by the
CFAllocator realloc() wrapper.
llvm-svn: 254722
2015-12-04 16:17:55 +00:00
465cb8a6fa
[tsan] Use malloc zone interceptors on OS X, part 1 (refactoring)
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TSan needs to use a custom malloc zone on OS X, which is already implemented in ASan. This patch is a refactoring patch (NFC) that extracts this from ASan into sanitizer_common, where we can reuse it in TSan.
Reviewed at http://reviews.llvm.org/D14330
llvm-svn: 252052
2015-11-04 15:43:45 +00:00
6e25858b5c
Revert "[ASan] Add the new __asan_mz_* symbols to asan_interface_internal.h"
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Reverting r228137 to unbreak the build bots.
llvm-svn: 228172
2015-02-04 19:14:35 +00:00
42fa73cef0
[ASan] Add the new __asan_mz_* symbols to asan_interface_internal.h
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to fix the interface_symbols_darwin.c test.
llvm-svn: 228137
2015-02-04 12:42:12 +00:00
270000c194
[ASan] Remove ifdefs for MAC_OS_X_VERSION_10_6, as ASan assumes OSX >= 10.6
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llvm-svn: 227968
2015-02-03 12:47:15 +00:00
f203ba35f1
[ASan] Add __asan_ prefix for "mz_*" allocation/deallocation functions
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and make them global so that they're not removed by `strip -x`.
llvm-svn: 227967
2015-02-03 12:38:10 +00:00
656c29b08f
Replace InternalScopedBuffer<char> with InternalScopedString where applicable.
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Summary: No functionality change.
Test Plan: make check-all
Reviewers: kcc
Reviewed By: kcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6472
llvm-svn: 223164
2014-12-02 22:20:11 +00:00
b9e31d7fcd
[asan] use some LIKELY/UNLIKELY
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llvm-svn: 208776
2014-05-14 14:03:31 +00:00
4672bacaef
[ASan] Get rid of asan_mac.h, which contents have been moved to sanitizer_mac.h
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llvm-svn: 200757
2014-02-04 11:35:59 +00:00
768e315a74
[ASan] Move GetMacosVersion() to sanitizer_common.
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llvm-svn: 200700
2014-02-03 15:32:19 +00:00
364bfdf4c9
[asan] Fix a bunch of style issues.
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llvm-svn: 199380
2014-01-16 13:17:13 +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
d0c91acb58
[ASan] Do not protect the malloc zone created by malloc_zone_create() on Snow Leopard and earlier systems.
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Fixes https://code.google.com/p/address-sanitizer/issues/detail?id=208
llvm-svn: 185621
2013-07-04 10:16:12 +00:00
2b064a2b4e
[ASan][OSX] Make sure the zones created by malloc_create_zone() are write-protected.
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Add a test.
llvm-svn: 185140
2013-06-28 10:01:09 +00:00
593f833e9b
[ASan][OSX] Fix the incorrect malloc_create_zone() implementation that led to out-of-bounds mprotect()s
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(https://code.google.com/p/address-sanitizer/issues/detail?id=203 )
Add a test.
llvm-svn: 185138
2013-06-28 09:21:31 +00:00
21cb74318c
[ASan] Kill the remainders of platform defines in favor of SANITIZER_ defines
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llvm-svn: 178629
2013-04-03 07:29:53 +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
920b3b9a0c
[ASan] Move malloc stats collection away from AsanThreadRegistry class.
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llvm-svn: 177508
2013-03-20 10:11:24 +00:00
95eaa21637
[sanitizer] More renamed macros.
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llvm-svn: 177401
2013-03-19 14:54:17 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
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llvm-svn: 177400
2013-03-19 14:33:38 +00:00
cae42d23a6
[ASan] Use dylib interposition to hook memory allocation in the dynamic runtime.
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This CL drastically simplifies the way we're hooking the memory allocation routines in ASan on Mac by using dylib interposition to replace the main malloc_zone_* functions. This allows us to avoid replacing the default CFAllocator and drop the CF dependency at all.
Committing this patch will result in the static runtime being broken. A follow-up CL will switch ASan to use the dynamic runtime library.
llvm-svn: 173134
2013-01-22 09:14:54 +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
6852bce2f2
[asan] fix mac build
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llvm-svn: 170118
2012-12-13 10:01:20 +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
f22c697f58
[asan] get rid of some of the uses of kPageSize. The intent is to get rid of it completely to support platforms with multiple possible page sizes.
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llvm-svn: 168517
2012-11-23 15:38:49 +00:00
1eef2b813c
[ASan] Rename ReplaceCFAllocator to MaybeReplaceCFAllocator.
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Replace the allocator only if the replace_cfallocator flag is set (in some cases it wasn't checked)
llvm-svn: 166550
2012-10-24 09:35:23 +00:00
83ecabe6e6
[Sanitizer] Remove unneeded returns after UNIMPLEMENTED macro
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llvm-svn: 165493
2012-10-09 08:51:08 +00:00
f3a96894a6
Give more accurate malloc statistics to malloc_zone_statistics().
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Fix a warning in macros instantiation.
llvm-svn: 163716
2012-09-12 15:29:50 +00:00
4787d0fbef
[ASan] more macro/casting magic to suppress warnings
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llvm-svn: 163706
2012-09-12 14:10:14 +00:00
814451909a
Initial support for malloc_zone_statistics. All counters are set to zero now.
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This is required to overcome a crash in mstats() (http://code.google.com/p/address-sanitizer/issues/detail?id=109 )
llvm-svn: 163690
2012-09-12 09:38:51 +00:00
5a9b616d6b
For invalid pointers passed to free_common check whether they are actually skewed to hold an additional CFAllocatorRef.
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If so, fix the pointer and pass it to asan_free.
See http://code.google.com/p/address-sanitizer/issues/detail?id=70 for more background.
llvm-svn: 162839
2012-08-29 12:36:24 +00:00
bb6f165952
[asan] get rid of AsanPrintf in favor of Printf from sanitizer_common
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llvm-svn: 162746
2012-08-28 11:34:40 +00:00
c62210e3ff
Commit the source and CMake changes that will allow to build ASan runtime
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as a shared library on Mac OS. This will provide an alternative to
mach_override.
llvm-svn: 162091
2012-08-17 09:00:08 +00:00
33c028fa05
Remove the setjmp.h dependency, fix the comment.
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llvm-svn: 161662
2012-08-10 12:46:39 +00:00
2cdd4f165e
Temporary fix for http://code.google.com/p/address-sanitizer/issues/detail?id=99 :
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when trying to free memory that actually belongs to the system purgeable zone, use malloc_zone_free(malloc_default_purgeable_zone(), ptr) instead of asan_free().
llvm-svn: 161661
2012-08-10 11:33:01 +00:00
f343eb7df4
[ASan] Move mac-specific error reports to asan_report.cc as well
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llvm-svn: 161576
2012-08-09 12:15:40 +00:00
51e6488b31
Intercept CFAllocator for each thread in the program.
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Test that child threads use the ASan allocator, that allocated memory can be passed to another thread and deallocated on it.
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=81
llvm-svn: 160630
2012-07-23 14:07:58 +00:00
34efb8e9b9
[ASan] Use common flags parsing machinery.
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llvm-svn: 159933
2012-07-09 14:36:04 +00:00
740d166c3e
Small fix: do not replace the default CFAllocator if it has been replaced already.
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llvm-svn: 159824
2012-07-06 13:52:28 +00:00
dc211a8db4
Because CFAllocatorCreate() should also be called after __CFInitialize() on Lion,
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do so by factoring the CFAllocator logic into ReplaceCFAllocator(), which is called from
either the __CFInitialize wrapper or __asan_init(), depending on which of them is called later.
llvm-svn: 159822
2012-07-06 13:24:28 +00:00
89f9270366
A portable way to check whether __CFInitialize has been called: compare kCFAllocatorSystemDefault._base._cfisa to 0.
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This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 on both Lion and Snow Leopard.
llvm-svn: 159821
2012-07-06 13:04:12 +00:00
d2ff0b087a
Do not check for __CFRuntimeClassTableSize on non-10.6 systems, where this symbol is private.
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This change may cause http://code.google.com/p/address-sanitizer/issues/detail?id=87 to re-appear on Lion.
llvm-svn: 159819
2012-07-06 11:58:54 +00:00
25b567dd0d
Fix http://code.google.com/p/address-sanitizer/issues/detail?id=87 by making sure we replace the default CFAllocator only after __CFInitialize has been called.
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llvm-svn: 159749
2012-07-05 14:46:56 +00:00
77769caaef
Do not call malloc_zone_from_ptr() for the pointers passed to mz_size() and mz_free().
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These callbacks assume that the memory belongs to asan_zone, so it's incorrect to pass it to another one.
If a need for this appears (e.g. system libraries free the memory using wrong zone), it should be documented.
llvm-svn: 159713
2012-07-04 13:58:07 +00:00
1bde28b464
Factor the common code out of cf_free and mz_free.
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Introduce the mac_ignore_invalid_free flag (0 by default) which makes both cf_free and mz_free ignore invalid free invocations and leak memory.
llvm-svn: 158885
2012-06-21 01:01:20 +00:00
f9f2fbacb3
Actually intercept free() to ensure that the deallocations caused by other functions directly calling it are routed to our allocator.
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For the allocations that do not belong to any malloc zone check whether they're padded with a pointer to ASan's CFAllocator. If so, free the original (unpadded) pointer.
This should fix AddressSanitizerMac.NSURLDeallocation and issue 70.
llvm-svn: 158863
2012-06-20 22:29:09 +00:00
51ae983718
[Sanitizer]: Introduce a common internal printf function. For now, also use tool-specific wrappers TsanPrintf (its output is controlled by TSan flags) and AsanPrintf (which copies its results to the ASan-private buffer). Supported formats: %[z]{d,u,x}, %s, %p. Re-write all format strings in TSan according to this format (this should have no effect on 64-bit platforms).
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llvm-svn: 158065
2012-06-06 13:11:29 +00:00
485d3dc363
Remove file-type tags for .cc files in ASan run-time library
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llvm-svn: 157927
2012-06-04 13:50:10 +00:00
8d03204204
[asan] more renaming
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llvm-svn: 157746
2012-05-31 14:35:53 +00:00
c6eb6a8287
Add internal_memset and replace the uses of REAL(memset) with it where the performance allows.
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llvm-svn: 153641
2012-03-29 12:20:47 +00:00
Alexander Potapenko