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Summary:
Disable for NetBSD missing functions missing in this OS:
- mempcpy,
- __libc_memalign,
- malloc_usable_size,
- stpcpy,
- gcvt,
- wmempcpy,
- fcvt.
Sponsored by <The NetBSD Foundation>
Reviewers: joerg, dvyukov, eugenis, vitalybuka, kcc
Reviewed By: vitalybuka
Subscribers: llvm-commits, #sanitizers
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D40764
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Summary: Fixes https://github.com/google/sanitizers/issues/892
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D40853
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Summary: Fixes https://github.com/google/oss-fuzz/issues/1009
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D40676
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"offset" declared in a macro may shadow a variable with the same name
in the caller which is used in a macro argument. We are quite lucky
that it does not actually happen, but rename the variable anyway to
be on the safe side.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319115 91177308-0d34-0410-b5e6-96231b3b80d8
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Return internally stored handlers only if handlers is set to wrapper
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317970 91177308-0d34-0410-b5e6-96231b3b80d8
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Already done in InitializeSignalInterceptors()
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317906 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary: Part of https://github.com/google/sanitizers/issues/637
Reviewers: eugenis, alekseyshl
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D39826
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317863 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary: Preparation for using interceptor from sanitizer_common.
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39824
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Summary:
Changes:
* Add initial msan stub support.
* Handle NetBSD specific pthread_setname_np(3).
* NetBSD supports __attribute__((tls_model("initial-exec"))),
define it in SANITIZER_TLS_INITIAL_EXEC_ATTRIBUTE.
* Add ReExec() specific bits for NetBSD.
* Simplify code and add syscall64 and syscall_ptr for !NetBSD.
* Correct bunch of syscall wrappers for NetBSD.
* Disable test/tsan/map32bit on NetBSD as not applicable.
* Port test/tsan/strerror_r to a POSIX-compliant OSes.
* Disable __libc_stack_end on NetBSD.
* Disable ReadNullSepFileToArray() on NetBSD.
* Define struct_ElfW_Phdr_sz, detected missing symbol by msan.
* Change type of __sanitizer_FILE from void to char. This helps
to reuse this type as an array. Long term it will be properly
implemented along with SANITIZER_HAS_STRUCT_FILE setting to 1.
* Add initial NetBSD support in lib/tsan/go/buildgo.sh.
* Correct referencing stdout and stderr in tsan_interceptors.cc
on NetBSD.
* Document NetBSD x86_64 specific virtual memory layout in
tsan_platform.h.
* Port tests/rtl/tsan_test_util_posix.cc to NetBSD.
* Enable NetBSD tests in test/msan/lit.cfg.
* Enable NetBSD tests in test/tsan/lit.cfg.
Sponsored by <The NetBSD Foundation>
Reviewers: joerg, vitalybuka, eugenis, kcc, dvyukov
Reviewed By: dvyukov
Subscribers: #sanitizers, llvm-commits, kubamracek
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D39124
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It was fixed in 312576.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312597 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Check sigset_t arguments in ppoll, sig*wait*, sigprocmask
interceptors, and the entire "struct sigaction" in sigaction. This
can be done because sigemptyset/sigfullset are intercepted and
signal masks should be correctly marked as initialized.
Reviewers: vitalybuka
Subscribers: kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D37367
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312396 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
ASan/MSan/LSan allocators set errno on allocation failures according to
malloc/calloc/etc. expected behavior.
MSan allocator was refactored a bit to make its structure more similar
with other allocators.
Also switch Scudo allocator to the internal errno definitions.
TSan allocator changes will follow.
Reviewers: eugenis
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D35275
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Move internal errno definitions to common to be shared by all sanitizers
and to be used by allocators.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307233 91177308-0d34-0410-b5e6-96231b3b80d8
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Also move wcslen, wscnlen to common interceptors.
Reviewers: vitalybuka
Reviewed By: vitalybuka
Subscribers: kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D34656
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r304285 - [sanitizer] Avoid possible deadlock in child process after fork
r304297 - [sanitizer] Trying to fix MAC buildbots after r304285
These changes create deadlock when Tcl calls pthread_create from a
pthread_atfork child handler. More info in the original review at
https://reviews.llvm.org/D33325
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Recommit of r302781 with Vitaly Buka's fix for non zero terminated strings.
Differential Revision: https://reviews.llvm.org/D31457
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This patch addresses https://github.com/google/sanitizers/issues/774. When we
fork a multi-threaded process it's possible to deadlock if some thread acquired
StackDepot or allocator internal lock just before fork. In this case the lock
will never be released in child process causing deadlock on following memory alloc/dealloc
routine. While calling alloc/dealloc routines after multi-threaded fork is not allowed,
most of modern allocators (Glibc, tcmalloc, jemalloc) are actually fork safe. Let's do the same
for sanitizers except TSan that has complex locking rules.
Differential Revision: https://reviews.llvm.org/D33325
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The Msan unit tests are still broken and by this point, I think we
should start over.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303339 91177308-0d34-0410-b5e6-96231b3b80d8
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Fix undeclared __interceptor_malloc in esan_interceptors.cc
Fix undeclared strnlen on OSX
Differential Revision: https://reviews.llvm.org/D31457
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Differential Revision: https://reviews.llvm.org/D31457
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{M, T, E}San have fread and fwrite interceptors, let's move them to sanitizer_common to enable ASan checks as well.
Differential Revision: https://reviews.llvm.org/D31456
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asan to sanitizer_common.
Reviewers: eugenis
Subscribers: kubabrecka, dberris, llvm-commits
Differential Revision: https://reviews.llvm.org/D28074
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Summary: We setup these interceptors twice which hangs test on windows.
Reviewers: eugenis
Subscribers: llvm-commits, kubabrecka
Differential Revision: https://reviews.llvm.org/D28070
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Summary:
According https://reviews.llvm.org/D27659#625093 WRAP adds confusing stack
frame.
Reviewers: eugenis
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D28039
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Wu (https://reviews.llvm.org/D27659)"
It breaks programs on Mac. See comments on the code review for details.
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(https://reviews.llvm.org/D27659)
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It's wrong to pass to MsanReallocate a pointer that MSan allocator doesn't own.
Use nullptr instead of ptr to prevent possible (still unlikely) failure.
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This patch is pretty the same as http://reviews.llvm.org/D20235 that we used
for ASan. Using the same hack for MSan fixes its initialization with newer
Glibc in use.
Differential Revision: https://reviews.llvm.org/D24736
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This reverts commit r269981. Breaks msan tests on linux
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/24019/steps/test%20standalone%20compiler-rt/logs/stdio
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Summary:
Adds *fstat to the common interceptors.
Removes the now-duplicate fstat interceptor from msan/tsan
This adds fstat to asan/esan, which previously did not intercept it.
Resubmit of http://reviews.llvm.org/D20318 with ios build fixes.
Reviewers: eugenis, vitalybuka, aizatsky
Subscribers: zaks.anna, kcc, bruening, kubabrecka, srhines, danalbert, tberghammer
Differential Revision: http://reviews.llvm.org/D20350
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This reverts commit http://reviews.llvm.org/rL269856
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Summary:
Adds *fstat to the common interceptors.
Removes the now-duplicate fstat interceptor from msan/tsan
This adds fstat to asan/esan, which previously did not intercept it.
Reviewers: eugenis, vitalybuka, aizatsky
Subscribers: tberghammer, danalbert, srhines, kubabrecka, bruening, kcc
Differential Revision: http://reviews.llvm.org/D20318
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Adds *stat to the common interceptors.
Removes the now-duplicate *stat interceptor from msan/tsan/esan.
This adds *stat to asan, which previously did not intercept it.
Patch by Qin Zhao.
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Summary:
Adds stat/__xstat to the common interceptors.
Removes the now-duplicate stat/__xstat interceptor from msan/tsan/esan.
This adds stat/__xstat to asan, which previously did not intercept it.
Resubmit of http://reviews.llvm.org/D19875 with win build fixes.
Reviewers: aizatsky, eugenis
Subscribers: tberghammer, llvm-commits, danalbert, vitalybuka, bruening, srhines, kubabrecka, kcc
Differential Revision: http://reviews.llvm.org/D19890
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This reverts commit 268440 because it breaks the windows bot.
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/21425/steps/build%20compiler-rt/logs/stdio
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Summary:
Adds stat/__xstat to the common interceptors.
Removes the now-duplicate stat/__xstat interceptor from msan/tsan/esan.
This adds stat/__xstat to asan, which previously did not intercept it.
Reviewers: aizatsky, eugenis
Subscribers: tberghammer, danalbert, srhines, kubabrecka, llvm-commits, vitalybuka, eugenis, kcc, bruening
Differential Revision: http://reviews.llvm.org/D19875
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involved.
On linux, some architectures had an ABI transition from 64-bit long double
(ie. same as double) to 128-bit long double. On those, glibc symbols
involving long doubles come in two versions, and we need to pass the
correct one to dlvsym when intercepting them.
A few more functions we intercept are also versioned (all printf, scanf,
strtold variants), but there's no need to fix these, as the REAL() versions
are never called.
Differential Revision: http://reviews.llvm.org/D19555
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This fixes fails in test/msan/dlerror.cc - when real dlerror calls strcmp,
our strcmp interceptor now skips poison checking, since it's called in
interceptor context. Strictly speaking, only the dlerror change is
necessary to fix the fail, but let's also change the other two just in case.
Differential Revision: http://reviews.llvm.org/D19499
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Summary:
Currently, sanitizer_common_interceptors.inc has an implicit, undocumented
assumption that the sanitizer including it has previously declared
interceptors for memset and memmove. Since the memset, memmove, and memcpy
routines require interception by many sanitizers, we add them to the
set of common interceptions, both to address the undocumented assumption
and to speed future tool development. They are intercepted under a new
flag intercept_intrin.
The tsan interceptors are removed in favor of the new common versions. The
asan and msan interceptors for these are more complex (they incur extra
interception steps and their function bodies are exposed to the compiler)
so they opt out of the common versions and keep their own.
Reviewers: vitalybuka
Subscribers: zhaoqin, llvm-commits, kcc
Differential Revision: http://reviews.llvm.org/D18465
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Summary:
Adds strnlen to the common interceptors, under the existing flag
intercept_strlen.
Removes the now-duplicate strnlen interceptor from asan and msan.
This adds strnlen to tsan, which previously did not intercept it.
Adds a new test of strnlen to the sanitizer_common test cases.
Reviewers: samsonov
Subscribers: zhaoqin, llvm-commits, kcc
Differential Revision: http://reviews.llvm.org/D18397
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Summary:
Adds strlen to the common interceptors, under a new common flag
intercept_strlen. This provides better sharing of interception code among
sanitizers and cleans up the inconsistent type declarations of the
previously duplicated interceptors.
Removes the now-duplicate strlen interceptor from asan, msan, and tsan.
The entry check semantics are normalized now for msan and asan, whose
private strlen interceptors contained multiple layers of checks that
included impossible-to-reach code. The new semantics are identical to the
old: bypass interception if in the middle of init or if both on Mac and not
initialized; else, call the init routine and proceed.
Patch by Derek Bruening!
Reviewers: samsonov, vitalybuka
Subscribers: llvm-commits, kcc, zhaoqin
Differential Revision: http://reviews.llvm.org/D18020
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Summary: Msan was intercepting version 2.1 of the pthread_create function which was making it to crash in libc because __pthread_create_2_1 modifies the stack attributes of the thread. Intercepting the correct version fixes the test SmallPreAllocatedStackThread.
Reviewers: eugenis, samsonov
Subscribers: llvm-commits, mohit.bhakkad, jaydeep
Differential: http://reviews.llvm.org/D17603
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