Add override specifiers to Symbolizer methods. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223094 91177308-0d34-0410-b5e6-96231b3b80d8
[Tsan] Do not flush all streams on exit
Differential Revision: http://reviews.llvm.org/D6462


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223121 91177308-0d34-0410-b5e6-96231b3b80d8
[Tsan] Fix the atomic_race.cc test to pass on systems with high loads
Differential Revision: http://reviews.llvm.org/D6478


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223122 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify Symbolizer::SymbolizePC() interface.

Return a linked list of AddressInfo objects, instead of using an array of
these objects as an output parameter. This simplifies the code in callers
of this function (especially TSan).

Fix a few memory leaks from internal allocator, when the returned
AddressInfo objects were not properly cleared.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223145 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing #include to fix Android build.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223157 91177308-0d34-0410-b5e6-96231b3b80d8
Replace InternalScopedBuffer<char> with InternalScopedString where applicable.

Summary: No functionality change.

Test Plan: make check-all

Reviewers: kcc

Reviewed By: kcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6472

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223164 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] fix four asan tests to run in use-after-return mode 

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223181 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Re-enable one test.

It has been fixed a long time ago.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223226 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Add one more test for the handling of stack origins.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223229 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] Fix stale_stack_leak.cc test in ASan-UAR mode.

This test does an intentional use-after-return, but this is not the focus of
the test, so ignore it.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223230 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Change the way origin ids are built.

Previously, all origin ids were "chained" origins, i.e values of
ChainedOriginDepot. This added a level of indirection for simple
stack and heap allocation, which were represented as chains of
length 1. This costs both RAM and CPU, but provides a joined 2**29
origin id space. It also made function (any instrumented function)
entry non-async-signal-safe, but that does not really matter because
memory stores in track-origins=2 mode are not async-signal-safe anyway.

With this change, the type of the origin is encoded in origin id.
See comment in msan_origin.h for more details. This reduces chained and stack
origin id range to 2**28 each, but leaves extra 2**31 for heap origins.

This change should not have any user-visible effects.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@223233 91177308-0d34-0410-b5e6-96231b3b80d8
Merge branch 'master', remote-tracking branch 'trunk/master'