[NFC][Py Reformat] Reformat python files in the rest of the dirs

This is an ongoing series of commits that are reformatting our
Python code. This catches the last of the python files to
reformat. Si

[NFC][Py Reformat] Reformat python files in the rest of the dirs

This is an ongoing series of commits that are reformatting our
Python code. This catches the last of the python files to
reformat. Since they where so few I bunched them together.

Reformatting is done with `black`.

If you end up having problems merging this commit because you
have made changes to a python file, the best way to handle that
is to run git checkout --ours <yourfile> and then reformat it
with black.

If you run into any problems, post to discourse about it and
we will try to help.

RFC Thread below:

https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style

Reviewed By: jhenderson, #libc, Mordante, sivachandra

Differential Revision: https://reviews.llvm.org/D150784

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Restore "[Darwin] Apply workaround to make symbolication in iOS simulators work"

This reverts commit d8b8911d58dba73fd7a28210d8d3e780ae881179.

Revert "[Darwin] Apply workaround to make symbolication in iOS simulators work"

This reverts commit ebd8eee62a431a6744c3f187fcda58e5dea08499.

[Darwin][Sanitizer] Lower Python requirement for iOS simulator testing

Lower Python requirements: 3.7 -> 3.6

Workaround introduced in: ebd8eee62a431a6744c3f187fcda58e5dea08499

[Darwin] Apply workaround to make symbolication in iOS simulators work

Specify `ASAN_SYMBOLIZER_PATH` when running simulator tests. This will
unblock simulator testing in GreenDragon (Apple's open

[Darwin] Apply workaround to make symbolication in iOS simulators work

Specify `ASAN_SYMBOLIZER_PATH` when running simulator tests. This will
unblock simulator testing in GreenDragon (Apple's open source testing).

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[compiler-rt][NFC] add debugging options to iossim_run

Add the ability to:
1. tell simctl to wait for debugger when spawning process
2. print the command that is called to launch the process

Review

[compiler-rt][NFC] add debugging options to iossim_run

Add the ability to:
1. tell simctl to wait for debugger when spawning process
2. print the command that is called to launch the process

Reviewed By: delcypher

Differential Revision: https://reviews.llvm.org/D106700

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[NFC][compiler-rt][test] pass through MallocNanoZone to iossim env

This is required for no-fd.cpp test

rdar://79354597

Differential Revision: https://reviews.llvm.org/D106174

[Sanitizer] Adopt Python 3 for iOS simulator test scripts

Differential Revision: https://reviews.llvm.org/D99911

Harmonize Python shebang

Differential Revision: https://reviews.llvm.org/D83857

[compiler-rt] Use --standalone when running tests on the iOS simulator

We can use `simctl spawn --standalone` to enable running tests without
the need for an already-booted simulator instance. This

[compiler-rt] Use --standalone when running tests on the iOS simulator

We can use `simctl spawn --standalone` to enable running tests without
the need for an already-booted simulator instance. This also side-steps
the problem of not having a good place to shutdown the instance after
we are finished with testing.

rdar://58118442

Reviewed By: delcypher

Differential Revision: https://reviews.llvm.org/D78409

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[iOS sim] Simplify iossim_run.py script

Enable `asan/TestCases/Posix/start-deactivated.cc` test for iOS.

Summary:
To make this test pass it was necesary to change `iossim_run.py` to
propagate the `ASAN_ACTIVATION_OPTIONS` environment vari

Enable `asan/TestCases/Posix/start-deactivated.cc` test for iOS.

Summary:
To make this test pass it was necesary to change `iossim_run.py` to
propagate the `ASAN_ACTIVATION_OPTIONS` environment variable into the
testing environment.

rdar://problem/49114807

Reviewers: kubamracek, yln, serge-sans-paille

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D59660

llvm-svn: 356701

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Introduce a way to allow the ASan dylib on Darwin platforms to be loaded via `dlopen()`.

Summary:

The purpose of this option is provide a way for the ASan dylib
to be loaded via `dlopen()` without

Introduce a way to allow the ASan dylib on Darwin platforms to be loaded via `dlopen()`.

Summary:

The purpose of this option is provide a way for the ASan dylib
to be loaded via `dlopen()` without triggering most initialization
steps (e.g. shadow memory set up) that normally occur when the
ASan dylib is loaded.

This new functionality is exposed by

- A `SANITIZER_SUPPORTS_INIT_FOR_DLOPEN` macro which indicates if the
feature is supported. This only true for Darwin currently.
- A `HandleDlopenInit()` function which should return true if the library
is being loaded via `dlopen()` and
`SANITIZER_SUPPORTS_INIT_FOR_DLOPEN` is supported. Platforms that
support this may perform any initialization they wish inside this
function.

Although disabling initialization is something that could potentially
apply to other sanitizers it appears to be unnecessary for other
sanitizers so this patch only makes the change for ASan.

rdar://problem/45284065

Reviewers: kubamracek, george.karpenkov, kcc, eugenis, krytarowski

Subscribers: #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D54469

llvm-svn: 348078

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[UBSan] Partially fix `test/ubsan/TestCases/Misc/log-path_test.cc` so that it can run on devices.

Summary:
In order for this test to work the log file needs to be removed from both
from the host and

[UBSan] Partially fix `test/ubsan/TestCases/Misc/log-path_test.cc` so that it can run on devices.

Summary:
In order for this test to work the log file needs to be removed from both
from the host and device. To fix this the `rm` `RUN` lines have been
replaced with `RUN: rm` followed by `RUN: %device_rm`.

Initially I tried having it so that `RUN: %run rm` implicitly runs `rm`
on the host as well so that only one `RUN` line is needed. This
simplified writing the test however that had two large drawbacks.

* It's potentially very confusing (e.g. for use of the device scripts outside
of the lit tests) if asking for `rm` to run on device also causes files
on the host to be deleted.

* This doesn't work well with the glob patterns used in the test.
The host shell expands the `%t.log.*` glob pattern and not on the
device so we could easily miss deleting old log files from previous
test runs if the corresponding file doesn't exist on the host.

So instead deletion of files on the device and host are explicitly
separate commands.

The command to delete files from a device is provided by a new
substitution `%device_rm` as suggested by Filipe Cabecinhas.

The semantics of `%device_rm` are that:

* It provides a way remove files from a target device when
the host is not the same as the target. In the case that the
host and target are the same it is a no-op.

* It interprets shell glob patterns in the context of the device
file system instead of the host file system.
This solves the globbing problem provided the argument is quoted so
that lit's underlying shell doesn't try to expand the glob pattern.

* It supports the `-r` and `-f` flags of the `rm` command,
with the same semantics.

Right now an implementation of `%device_rm` is provided only for
ios devices. For all other devices a lit warning is emitted and
the `%device_rm` is treated as a no-op. This done to avoid changing
the behaviour for other device types but leaves room for others
to implement `%device_rm`.

The ios device implementation uses the `%run` wrapper to do the work
of removing files on a device.

The `iossim_run.py` script has been fixed so that it just runs `rm`
on the host operating system because the device and host file system
are the same.

rdar://problem/41126835

Reviewers: vsk, kubamracek, george.karpenkov, eugenis

Subscribers: #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D51648

llvm-svn: 342391

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[UBSan] Propagate `UBSAN_OPTIONS` environment variable when running ios simulator tests.

rdar://problem/41126835

Reviewers: kubamracek, vsk, george.karpenkov

Subscribers: #sanitizers, llvm-commits

[UBSan] Propagate `UBSAN_OPTIONS` environment variable when running ios simulator tests.

rdar://problem/41126835

Reviewers: kubamracek, vsk, george.karpenkov

Subscribers: #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D51273

llvm-svn: 341299

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[tsan] Add support for running TSan tests on iOS simulator and devices

Differential Revision: https://reviews.llvm.org/D35157

llvm-svn: 307537

Follow-up for r301443: The python scrips need to be executable.

llvm-svn: 301448

[asan] Add support for running lit tests in the iOS Simulator

This patch adds a basic support for running the ASan lit test suite against an iOS Simulator. This is done by generating more lit.site.c

[asan] Add support for running lit tests in the iOS Simulator

This patch adds a basic support for running the ASan lit test suite against an iOS Simulator. This is done by generating more lit.site.cfg configurations into subdirectories such as IOSSimI386Config and IOSSimX86_64Config. These test suites are not added into "check-all" or into "check-asan", they have to be run manually.

Differential Revision: https://reviews.llvm.org/D31477

llvm-svn: 301443

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