[Sanitizer] Extend a symbolizer code. Implemented for Linux only. Use dl_iterate_phdr to get virtual addresses of mapped module sections. To symbolize an address from a module, map this module to memory and obtain pointers to debug info sections. Later these pointers can be passed to constructor of DWARF context-in-memory from LLVM DebugInfo lib.

llvm-svn: 159652

llvm-svn: 159518

llvm-svn: 159516

[ASan] cmake cleanup: make tab/space padding in CMakeLists consistent, silence/fix some pedantic warnings

llvm-svn: 159514

llvm-svn: 159449

llvm-svn: 159447

llvm-svn: 159443

llvm-svn: 159439

llvm-svn: 159438

llvm-svn: 159437

llvm-svn: 159432

llvm-svn: 159429

llvm-svn: 159424

llvm-svn: 159294

llvm-svn: 159204

llvm-svn: 159142

llvm-svn: 159140

llvm-svn: 159139

llvm-svn: 159137

Add the initial support for building ASan tests.

The first change here is to try to get the CFLAGS to more closely match
those used by the old Makefile. There are probably still goofs here,
ASan folks, your review would be appreciated.

The second big change is to add support for building both
instrumentation based an non-instrumentation based unittests for ASan.
They are built a bit differently from how the old makefiles managed
things. Specifically, there are two binaries, one for the
non-instrumented case, and one for the instrumented case.

Also, the instrumented unit tests rely on the host compiler supporting
AddressSanitizer's intrumentation pass. This is kind-of gross, but
I don't know of a better way yet. I've mailed llvmdev to discuss this
issue.

One big caveat is that the detection logic currently doesn't work. I've
commented it out temporarily as I'd like to get feedback from the ASan
developers, etc.

llvm-svn: 159134

ASan, and friends.

This explicitly switches the CompilerRT CMake build to require CMake
version 2.8.8 or newer which provides first-class support for "object"
libraries which consist of a pile of '.o' files -- exactly what is
desired for composing runtime libraries. I've gone ahead and switched to
using this.

I've also added the interception library which I missed initially. And
I've added proper dependencies between the various libraries. With this,
I'm able to build archives for asan that appear to contain all of the
necessary .o files.

The final tweak here is to start setting up the compile flags and macro
defines expected by ASan and its helper libraries. These may not be
entirely correct currently, they're based loosely on my reading of the
old Makefiles. However, they can be tweaked more easily now that they're
wired up properly.

llvm-svn: 159129

llvm-svn: 159122

llvm-svn: 159002

llvm-svn: 158991

[tsan] first step in implementing a custom allocator for tsan (and msan) which saves precious shadow

llvm-svn: 158913

llvm-svn: 158821

to get it working again, two changes were needed:

- I had to give up on glob-based file expansion. This just isn't well
  supported by CMake, and until we convince upstream there of its value,
  it's not worth dealing with the pain.
- Add the common library as otherwise even ASan won't build.

This now builds again, although the "correctness" of it is a touch
debatable. ;] Specifically, there is no merging of the common runtime
library with the asan runtime library into a single archive file. I'm
not really sure what the best technique is for that, and it may be
influenced by the ongoing discussion about how best to link runtime
libraries.

Note of course that this is still very much WIP. It doesn't entirely
work yet, and remains disabled by the LLVM projects/CMakeLists.txt until
it is in a working state.

llvm-svn: 158811

llvm-svn: 158710

[Sanitizer] State that sanitizer_libc.h header can be included in the user code (and therefore it shouldn't include other sanitizer runtime headers).

llvm-svn: 158707

llvm-svn: 158706

llvm-svn: 158658

[TSan] kill some linux-specific code in favor of code in common runtime: reuse wrappers for mmap routines, ProcessMaps iterator, thread stack calculation

llvm-svn: 158657

llvm-svn: 158655

llvm-svn: 158524

llvm-svn: 158522

[Sanitizer] move all the rest re-implementations of libc functions from ASan runtime to common sanitizer runtime

llvm-svn: 158519

[Sanitizer] Use DEFINE_REAL macro in TSan runtime to call libc implementations of functions. Move strchr to sanitizer_libc.

llvm-svn: 158517

llvm-svn: 158502

llvm-svn: 158499

llvm-svn: 158496