This change unifies the summary printing across sanitizers:
now each tool uses specific version of ReportErrorSummary() method,
which deals with symbolization of the top frame and formatting a
summary message. This change modifies the summary line for ASan+LSan mode:
now the summary mentions "AddressSanitizer" instead of "LeakSanitizer".

llvm-svn: 193864

llvm-svn: 193863

llvm-svn: 193848

llvm-svn: 193834

Summary:
TSan and MSan need to know if interceptor was called by the
user code or by the symbolizer and use pre- and post-symbolization hooks
for that. Make Symbolizer class responsible for calling these hooks instead.
This would ensure the hooks are only called when necessary (during
in-process symbolization, they are not needed for out-of-process) and
save specific sanitizers from tracing all places in the code where symbolization
will be performed.

Reviewers: eugenis, dvyukov

Reviewed By: eugenis

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2067

llvm-svn: 193807

Do not use struct stat64 and struct statfs64 when building for iOS, where __DARWIN_ONLY_64_BIT_INO_T is set to 1.

llvm-svn: 193775

llvm-svn: 193760

[ASan] Make asan_symbolize.py fall back to ASAN_SYMBOLIZER_PATH (which is used when ASAN_OPTIONS=symbolize=1) if LLVM_SYMBOLIZER_PATH is empty.

llvm-svn: 193758

The same logic is present in ASan and TSan.

llvm-svn: 193755

llvm-svn: 193730

llvm-svn: 193729

Replace blind store with check-before-store to avoid unnecessary memory stores.

Patch by Qin Zhao.

llvm-svn: 193703

llvm-svn: 193700

llvm-svn: 193697

llvm-svn: 193670

llvm-svn: 193667

llvm-svn: 193655

Patch by Qin Zhao.

llvm-svn: 193654

llvm-svn: 193647

llvm-svn: 193645

Add macro MSANDR_STANDALONE_TEST for standalone test without msan executables.

Patch by Qin Zhao.

llvm-svn: 193643

llvm-svn: 193639

llvm-svn: 193635

llvm-svn: 193634

llvm-svn: 193633

llvm-svn: 193615

llvm-svn: 193602

[Sanitizer] Simplify StackTrace::PrintStack interface: prefer common flags to turn on/off the symbolization

llvm-svn: 193587

llvm-svn: 193581

llvm-svn: 193529

llvm-svn: 193522

this makes the reports consistent with tsan, and much more readable.

llvm-svn: 193520

llvm-svn: 193519

llvm-svn: 193501

llvm-svn: 193470

Differential Revision: http://llvm-reviews.chandlerc.com/D1984

llvm-svn: 193449

This moves away from creating the symbolizer object and initializing the
external symbolizer as separate steps.  Those steps now always take place
together.

Sanitizers with a legacy requirement to specify their own symbolizer path
should use InitSymbolizer to initialize the symbolizer with the desired
path, and GetSymbolizer to access the symbolizer.  Sanitizers with no
such requirement (e.g. UBSan) can use GetOrInitSymbolizer with no need for
initialization.

The symbolizer interface has been made thread-safe (as far as I can
tell) by protecting its member functions with mutexes.

Finally, the symbolizer interface no longer relies on weak externals, the
introduction of which was probably a mistake on my part.

Differential Revision: http://llvm-reviews.chandlerc.com/D1985

llvm-svn: 193448

llvm-svn: 193447

llvm-svn: 193417

llvm-svn: 193415