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Revision tags: llvmorg-20.1.0, llvmorg-20.1.0-rc3, llvmorg-20.1.0-rc2, llvmorg-20.1.0-rc1, llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4
# 8246b2e1 23-May-2022 Mariusz Borsa <[email protected]>

[Sanitizers][Darwin] Replace SANITIZER_MAC with SANITIZER_APPLE in source files

This is a follow up to [Sanitizers][Darwin] Rename Apple macro SANITIZER_MAC -> SANITIZER_APPLE (D125816)

Performed a

[Sanitizers][Darwin] Replace SANITIZER_MAC with SANITIZER_APPLE in source files

This is a follow up to [Sanitizers][Darwin] Rename Apple macro SANITIZER_MAC -> SANITIZER_APPLE (D125816)

Performed a global search/replace as in title against LLVM sources

Differential Revision: https://reviews.llvm.org/D126263

show more ...


Revision tags: llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3
# 4cefa861 02-Sep-2020 Julian Lettner <[email protected]>

[TSan][libdispatch] Fix compilation error on Linux

The interceptor for the block variants of the API references the
function versions (via `REAL(name##_f)`). On Linux, this accesses the
underlying

[TSan][libdispatch] Fix compilation error on Linux

The interceptor for the block variants of the API references the
function versions (via `REAL(name##_f)`). On Linux, this accesses the
underlying "real pointer", defined by the interceptor macro. So we need
to declare interceptors in the right order to avoid undefined symbol
compiler error:
```
error: no member named 'real_dispatch_async_and_wait_f' in namespace '__tsan::__interception'
```

rdar://68181542

show more ...


# c1d25e9a 24-Aug-2020 Julian Lettner <[email protected]>

[TSan][libdispatch] Add interceptors for dispatch_barrier_async_and_wait(), pt. 2

Also intercept these target functions on Linux.


# fa0a855c 24-Aug-2020 Julian Lettner <[email protected]>

[TSan][libdispatch] Add interceptors for dispatch_barrier_async_and_wait()

Add interceptors for the barrier variants of the "async and wait"
dispatch API family.


Revision tags: llvmorg-11.0.0-rc2
# 686fe293 17-Aug-2020 Julian Lettner <[email protected]>

[TSan][libdispatch] Ensure TSan dylib works on old systems

`dispatch_async_and_wait()` was introduced in macOS 10.14, which is
greater than our minimal deployment target. We need to forward declare

[TSan][libdispatch] Ensure TSan dylib works on old systems

`dispatch_async_and_wait()` was introduced in macOS 10.14, which is
greater than our minimal deployment target. We need to forward declare
it as a "weak import" to ensure we generate a weak reference so the TSan
dylib continues to work on older systems. We cannot simply `#include
<dispatch.h>` or use the Darwin availability macros since this file is
multi-platform.

In addition, we want to prevent building these interceptors at all when
building with older SDKs because linking always fails.

Before:
```
➤ dyldinfo -bind ./lib/clang/12.0.0/lib/darwin/libclang_rt.tsan_osx_dynamic.dylib | grep dispatch_async_and_wait
__DATA __interpose 0x000F5E68 pointer 0 libSystem _dispatch_async_and_wait_f
```

After:
```
➤ dyldinfo -bind ./lib/clang/12.0.0/lib/darwin/libclang_rt.tsan_osx_dynamic.dylib | grep dispatch_async_and_wait
__DATA __got 0x000EC0A8 pointer 0 libSystem _dispatch_async_and_wait (weak import)
__DATA __interpose 0x000F5E78 pointer 0 libSystem _dispatch_async_and_wait (weak import)
```

This is a follow-up to D85854 and should fix:
https://reviews.llvm.org/D85854#2221529

Reviewed By: kubamracek

Differential Revision: https://reviews.llvm.org/D86103

show more ...


# 0c4863a2 11-Aug-2020 Julian Lettner <[email protected]>

Reland "[TSan][libdispatch] Add interceptors for dispatch_async_and_wait()"

The linker errors caused by this revision have been addressed.

Add interceptors for `dispatch_async_and_wait[_f]()` which

Reland "[TSan][libdispatch] Add interceptors for dispatch_async_and_wait()"

The linker errors caused by this revision have been addressed.

Add interceptors for `dispatch_async_and_wait[_f]()` which was added in
macOS 10.14. This pair of functions is similar to `dispatch_sync()`,
but does not force a context switch of the queue onto the caller thread
when the queue is active (and hence is more efficient). For TSan, we
can apply the same semantics as for `dispatch_sync()`.

From the header docs:
> Differences with dispatch_sync()
>
> When the runtime has brought up a thread to invoke the asynchronous
> workitems already submitted to the specified queue, that servicing
> thread will also be used to execute synchronous work submitted to the
> queue with dispatch_async_and_wait().
>
> However, if the runtime has not brought up a thread to service the
> specified queue (because it has no workitems enqueued, or only
> synchronous workitems), then dispatch_async_and_wait() will invoke the
> workitem on the calling thread, similar to the behaviour of functions
> in the dispatch_sync family.

Additional context:
> The guidance is to use `dispatch_async_and_wait()` instead of
> `dispatch_sync()` when it is necessary to mix async and sync calls on
> the same queue. `dispatch_async_and_wait()` does not guarantee
> execution on the caller thread which allows to reduce context switches
> when the target queue is active.
> https://gist.github.com/tclementdev/6af616354912b0347cdf6db159c37057

rdar://35757961

Reviewed By: kubamracek

Differential Revision: https://reviews.llvm.org/D85854

show more ...


# 501a078c 18-Aug-2020 Arthur Eubanks <[email protected]>

Revert "[TSan][libdispatch] Add interceptors for dispatch_async_and_wait()"

This reverts commit d137db80297f286f3a19eacc63d4a980646da437.

Breaks builds on older SDKs.


# d137db80 11-Aug-2020 Julian Lettner <[email protected]>

[TSan][libdispatch] Add interceptors for dispatch_async_and_wait()

Add interceptors for `dispatch_async_and_wait[_f]()` which was added in
macOS 10.14. This pair of functions is similar to `dispatc

[TSan][libdispatch] Add interceptors for dispatch_async_and_wait()

Add interceptors for `dispatch_async_and_wait[_f]()` which was added in
macOS 10.14. This pair of functions is similar to `dispatch_sync()`,
but does not force a context switch of the queue onto the caller thread
when the queue is active (and hence is more efficient). For TSan, we
can apply the same semantics as for `dispatch_sync()`.

From the header docs:
> Differences with dispatch_sync()
>
> When the runtime has brought up a thread to invoke the asynchronous
> workitems already submitted to the specified queue, that servicing
> thread will also be used to execute synchronous work submitted to the
> queue with dispatch_async_and_wait().
>
> However, if the runtime has not brought up a thread to service the
> specified queue (because it has no workitems enqueued, or only
> synchronous workitems), then dispatch_async_and_wait() will invoke the
> workitem on the calling thread, similar to the behaviour of functions
> in the dispatch_sync family.

Additional context:
> The guidance is to use `dispatch_async_and_wait()` instead of
> `dispatch_sync()` when it is necessary to mix async and sync calls on
> the same queue. `dispatch_async_and_wait()` does not guarantee
> execution on the caller thread which allows to reduce context switches
> when the target queue is active.
> https://gist.github.com/tclementdev/6af616354912b0347cdf6db159c37057

rdar://35757961

Reviewed By: kubamracek

Differential Revision: https://reviews.llvm.org/D85854

show more ...


Revision tags: llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1, llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5, llvmorg-10.0.0-rc4, llvmorg-10.0.0-rc3, llvmorg-10.0.0-rc2, llvmorg-10.0.0-rc1, llvmorg-11-init, llvmorg-9.0.1, llvmorg-9.0.1-rc3, llvmorg-9.0.1-rc2, llvmorg-9.0.1-rc1, llvmorg-9.0.0, llvmorg-9.0.0-rc6, llvmorg-9.0.0-rc5, llvmorg-9.0.0-rc4, llvmorg-9.0.0-rc3
# def061e6 20-Aug-2019 Julian Lettner <[email protected]>

[TSan] Rename file with libdispatch interceptors

llvm-svn: 369314