llvm-svn: 161569

[ASan] Create new files asan_report.{h,cc} as a preparation for refactoring of ASan error reporting code.
Currently ASan reports many kinds of errors, and the code that actually prints error messages can
be found inside allocator, OS-specific files, interceptors code etc.

An example of maintenance troubles this situation causes:
There is currently an ASan interface function that registers
callback which should take the char buffer with error report printed by ASan.
This function is now broken, as one has to insert callback calls to all the places in
ASan code where the error reports are printed, surprisingly it is not only
"__asan_report_error" function...

llvm-svn: 161568

llvm-svn: 161485

[compiler-rt] CMake build: if LLVM_BUILD_32_BITS is on, then -m32 is added to llvm definitions. Let us override this by explicitly adding -m64 compiler flag when building compiler-rt libraries for x86_64 target

llvm-svn: 161415

llvm-svn: 161412

llvm-svn: 161411

llvm-svn: 161406

llvm-svn: 161322

[ASan] add new ASan option 'strip_path_prefix' to remove useless prefices from filenames in stack traces

llvm-svn: 161321

AllocationSize(ptr) should check that |ptr| actually points to the beginning of the chunk it belongs to.
Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=86

llvm-svn: 161320

llvm-svn: 161181

Some refactoring for asan_symbolize.py: introduced the Symbolizer class and implemented DarwinSymbolizer for atos-based symbolization, BreakpadSymbolizer for breakpad-based symbolization (files produced by the dump_syms tool, http://code.google.com/p/google-breakpad/source/browse/#svn%2Ftrunk%2Fsrc%2Ftools%2Fmac%2Fdump_syms) and ChainSymbolizer to allow falling back if a symbolizer hadn't succeeded.
Fixed pylint warnings.

llvm-svn: 161176

llvm-svn: 161170

llvm-svn: 161169

[Sanitizer] Workaround for a compiler warning - ISO C++ forbids casting pointer-to-function to pointer-to-object, so we use cast via integral type

llvm-svn: 161168

Make strcat() and strncat() more standard-compliant (check for invalid parameters even if zero bytes is copied, more accurate overlap check)
Fix the tests that were relying on the incorrect behavior.

llvm-svn: 161167

llvm-svn: 161166

Add support for "movsbl %sil,%ecx" (x86_64) and "movsbl $imm(%ebp), %edx" (i386) to our fork of mach_override.
This is an extended version of a patch by Rafael Avila de Espindola (rafael.espindola@gmail.com)

llvm-svn: 161116

llvm-svn: 161113

[ASan] cleanup interceptors code - prefer ASAN_INTERCEPT_FUNCTION_NAME macro to _WIN32, __APPLE__ etc.

llvm-svn: 161109

First tiny move towards integrating AddressSanitizer regressions test into LLVM lit-based testing infrastructure.
The goal is to be able to run ASan tests by simply running "make check-asan" command from CMake build tree:
* tests should use fresh clang binary from current build tree.
* tests should use the same RUN-lines syntax as llvm/clang reg tests.

Next steps:
- restricting tests to machines where target is equal to host, i.e. where we can produce working binaries.
- moving AddressSanitizer unit tests to lit as well.

llvm-svn: 161050

llvm-svn: 161046

[Sanitizer] Wrapper around llvm::DIContext from LLVM DebugInfo library. If a macro SANITIZER_USES_LLVM_LIBS is defined (by default it is not), then sanitizer runtime includes llvm headers and tries to use LLVM libs for in-process symbolization. To make it functional, we have to link with these LLVM libs - either pass them to linker from Clang driver, or link them into static ASan runtime when we build it.

llvm-svn: 161045

llvm-svn: 160957

llvm-svn: 160955

fix clock setup for finalizer goroutine (Go runtime)

llvm-svn: 160918

llvm-svn: 160875

llvm-svn: 160863

llvm-svn: 160861

llvm-svn: 160860

llvm-svn: 160853

llvm-svn: 160797

llvm-svn: 160728

llvm-svn: 160723

llvm-svn: 160722

cmake for compiler-rt: add a function to set output dirs for compiler runtimes equal to directory used by Clang driver. Use it for ASan runtime. Also, make sure that ASan unit tests depend on the ASan runtime.

llvm-svn: 160721

[asan] don't return from a never-return function. fix a test that had a chain of bugs instead of just one

llvm-svn: 160719

llvm-svn: 160718

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

llvm-svn: 160672