[msan] Fix origin of deallocated memory.

MSan poisons deallocated memory but it used to give it an invalid origin value,
resulting in confusing reports. This change associates deallocation stack trace
with such memory.

Note that MSan does not have quarantine, and use-after-free detection is very
limited.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190781 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Check return value of main: compiler-rt tests.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190783 91177308-0d34-0410-b5e6-96231b3b80d8
Minor enhancements for sanitizer_common build rules

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190786 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Check that getSymbolizer() is defined. Turn magic mapping constants into named variables

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190787 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Split ASan unit tests into two different binaries:

(1) instrumented, i.e. compiled and linked with -fsanitize=address
(2) not instrumented, compiled w/o -fsanitize=address and linked with ASan runtime statically.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190788 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Don't link with pthread on Android

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190794 91177308-0d34-0410-b5e6-96231b3b80d8
Check the function we just called for errors, not an incoming argument. Noticed
by inspection.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190828 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] further speedup use-after-return: simplify deallocation of fake frames. ~ 20% speedup.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190852 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Link tests with -pie if ASan runtime uses zero-base shadow

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190853 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Enable fake stack test on Mac and Android, as no-instrumentation tests are now fixed

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190856 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Don't add SANITIZER_INTERFACE_ATTRIBUTE for internal ASan functions

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@190860 91177308-0d34-0410-b5e6-96231b3b80d8
Merge pull request #1 from llvm-mirror/master

Merge from mainline