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11209. By hahnfeld on 2019-02-16

[compiler-rt] Cleanup usage of C++ ABI library

Add missed value "libcxxabi" and introduce SANITIZER_TEST_CXX for linking
unit tests. This needs to be a full C++ library and cannot be libcxxabi.

Recommit r354132 which I reverted in r354153 because it broke a sanitizer
bot. This was because of the "fixes" for pthread linking, so I've removed
these changes.

Differential Revision: https://reviews.llvm.org/D58012

11208. By kcc on 2019-02-16

[libFuzzer] make len_control less agressive: set the initial max len to the length of the largest seed. This was the original intent, but... Now, with a test, to ensure it stays this way

11207. By kcc on 2019-02-16

[libFuzzer] fork mode: try harder to cleanup after itself

11206. By yln on 2019-02-15

[Sanitizer] iOS: Pull up parallelism_group handling into common.lit.config

Serial execution on iOS devices is not specific to sanitizers. We want
to throttle all on-device tests. Pull the setting of the
parallelism_group up into the common lit configuration file.

Rename `darwin-ios-device-sanitizer` to `ios-device`. This group is not
specific to sanitizers and (theoretically) independent from the host OS.

Note that we don't support running unit tests on-device (there are no
configurations generated for that). If that ever changes, we also need
this configuration in `unittests/lit.common.unit.cfg`.

Reviewers: delcypher

Differential Revision: https://reviews.llvm.org/D58209

11205. By kcc on 2019-02-15

[libFuzzer] form mode: add -ignore_crashes flag, honor the max_total_time flag, print the number of ooms/timeouts/crashes, fix a typo

11204. By rsmith on 2019-02-15

Fix invalid code that Clang trunk will soon diagnose.

There is an ambiguity between ::SizeClassMap (the typedef declared near
the start of this file) and __sanitizer::SizeClassMap (found by the
'using namespace __sanitizer;' near the start of this file).

Historically a Clang bug has meant that the error was not diagnosed, but
soon Clang will start diagnosing it. Explicitly qualify this use of
SizeClassMap so that it finds __sanitizer::SizeClassMap rather than
being ill-formed due to ambiguity.

11203. By eugenis on 2019-02-15

Fix unsymbolized stack history printing.

Summary:
When symbols are unavailable, the current code prints
  sp: ... pc: ... (null) (null)
instead of module name + offset.

Change the output to include module name and offset, and also to match
the regular sanitizer stack trace format so that it is recognized by
symbolize.py out of the box.

Reviewers: kcc, pcc

Subscribers: kubamracek, jdoerfert, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58267

11202. By eugenis on 2019-02-15

Runtime flags for malloc bisection.

Reviewers: kcc, pcc

Subscribers: kubamracek, mgorny, jdoerfert, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58162

11201. By eugenis on 2019-02-15

Fix false positive when tag_in_malloc=0,tag_in_free=1.

Summary:
With tag_in_free=1, malloc() can not assume that the memory is untagged,
and needs to retag is to 0.

Reviewers: pcc, kcc

Subscribers: kubamracek, jfb, jdoerfert, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58158

11200. By hahnfeld on 2019-02-15

Revert "[compiler-rt] Cleanup usage of C++ ABI library"

This reverts r354132 because it breaks sanitizer-x86_64-linux:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/19915