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With this patch 12 out of 13 tests are passing.
Reviewed by zhaoqin.
Differential: D23799
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@283435 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This reverts commit 62b3eecdbe72af0255f0639b0446087a47efbf48. (D23799)
The CL cause 13 ESan test failure on x86_64:
Failing Tests (13):
EfficiencySanitizer-x86_64 :: TestCases/large-stack-linux.c
EfficiencySanitizer-x86_64 :: TestCases/libc-intercept.c
EfficiencySanitizer-x86_64 :: TestCases/mmap-shadow-conflict.c
EfficiencySanitizer-x86_64 :: TestCases/struct-simple.cpp
EfficiencySanitizer-x86_64 :: TestCases/verbose-simple.c
EfficiencySanitizer-x86_64 :: TestCases/workingset-early-fault.c
EfficiencySanitizer-x86_64 :: TestCases/workingset-memset.cpp
EfficiencySanitizer-x86_64 :: TestCases/workingset-midreport.cpp
EfficiencySanitizer-x86_64 :: TestCases/workingset-samples.cpp
EfficiencySanitizer-x86_64 :: TestCases/workingset-signal-posix.cpp
EfficiencySanitizer-x86_64 :: TestCases/workingset-simple.cpp
EfficiencySanitizer-x86_64 :: Unit/circular_buffer.cpp
EfficiencySanitizer-x86_64 :: Unit/hashtable.cpp
Unexpected Failures: 13
Reviewers: bruening, slthakur
Subscribers: sdardis, kubabrecka, beanz
Differential Revision: https://reviews.llvm.org/D24350
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@280954 91177308-0d34-0410-b5e6-96231b3b80d8
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With this patch 10 out of 13 tests are passing.
Following is the list of failing tests:
struct-simple.cpp
workingset-signal-posix.cpp
mmap-shadow-conflict.c
Reviewed by bruening
Differential: D23799
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@280795 91177308-0d34-0410-b5e6-96231b3b80d8
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Adds a new esan public interface routine __esan_get_sample_count() and uses
it to ensure that tests of sampling receive the minimum number of samples.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@275948 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds a new public interface routine __esan_report() which can be used to
request profiling results prior to abnormal termination (e.g., for a server
process killed by its parent where the normal exit does not allow for
normal result reporting).
Implements this for the working-set tool. The cache frag tool is left
unimplemented as it requires missing iteration capabilities.
Adds a new test.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D22098
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@274964 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds interception of sigprocmask and pthread_sigmask to esan so that the
working set tool can prevent SIGSEGV from being blocked. A blocked SIGSEGV
results in crashes due to our lazy shadow page allocation scheme.
Adds new sanitizer helper functions internal_sigemptyset and
internal_sigismember.
Adds a test to workingset-signal-posix.cpp.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D22063
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@274672 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds initialization of esan's runtime library during any early interceptors
that are sometimes called prior to the official __esan_init() invocation
(we see this with apps using tcmalloc).
Adds handling of interceptors called during interceptor initialization.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D20976
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@271744 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds a global variable to specify the tool, to support handling early
interceptors that invoke instrumented code, thus requiring shadow memory to
be initialized prior to __esan_init() being invoked.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D20974
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@271714 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
In preparation for fault-based shadow memory iteration, we add support for
our own signal handler by adding app signal handler interception as well as
chaining for SIGSEGV. This is done in a simple manner: we do not honor the
app's alternate stack nor any sigaction flags for SIGSEGV.
Adds a new test of transparency in app signal handling.
Reviewers: aizatsky
Subscribers: filcab, kubabrecka, vitalybuka, zhaoqin, kcc, eugenis, llvm-commits
Differential Revision: http://reviews.llvm.org/D20577
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@271272 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds detection of large stack size rlimits (over 1 TB or unlimited), which
results in an mmap location that our shadow mapping does not support. We
re-exec the application in this situation. Adds a test of this behavior.
Adds general detection of mmap regions outside of our app regions. In the
future we want to try to adaptively handle these but for now we abort.
Moves the existing Linux-specific mmap code into a platform-specific file
where the new rlimit code lives.
Reviewers: eugenis
Subscribers: vitalybuka, zhaoqin, kcc, aizatsky, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D20745
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@271079 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds processCompilationUnitInit and processCompilationUnitExit
for compilation unit init/exit.
Adds a tool-specific argument passed to esan_init.
Adds the dtor and esan_exit called from the dtor.
A test will be added separately (adding it here results in failure until
the corresponding compilation patch is in place).
Reviewers: aizatsky
Subscribers: kubabrecka, bruening, kcc, vitalybuka, eugenis, llvm-commits
Differential Revision: http://reviews.llvm.org/D20486
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@270624 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds libc interceptors to the runtime library for the new
EfficiencySanitizer ("esan") family of tools. The interceptors cover
the memory operations in most common library calls and will be shared
among all esan tools.
Reviewers: aizatsky
Subscribers: zhaoqin, tberghammer, danalbert, srhines, llvm-commits, vitalybuka, eugenis, kcc
Differential Revision: http://reviews.llvm.org/D19411
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267293 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Adds the initial version of a runtime library for the new
EfficiencySanitizer ("esan") family of tools. The library includes:
+ Slowpath code via callouts from the compiler instrumentation for
each memory access.
+ Registration of atexit() to call finalization code.
+ Runtime option flags controlled by the environment variable
ESAN_OPTIONS. The common sanitizer flags are supported such as
verbosity and log_path.
+ An initial simple test.
Still TODO: common code for libc interceptors and shadow memory mapping,
and tool-specific code for shadow state updating.
Reviewers: eugenis, vitalybuka, aizatsky, filcab
Subscribers: filcab, vkalintiris, kubabrecka, llvm-commits, zhaoqin, kcc
Differential Revision: http://reviews.llvm.org/D19168
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267060 91177308-0d34-0410-b5e6-96231b3b80d8
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