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  1. 20 Apr, 2022 1 commit
  3. 24 Aug, 2021 1 commit
    • Dan Elphick's avatar
      Reland "[include] Split out v8.h" · ec06bb6c
      Dan Elphick authored 
      This is a reland of d1b27019

Fixes include:
Adding missing file to bazel build
Forward-declaring classing before friend-classing them to fix win/gcc
Add missing v8-isolate.h include for vtune builds

Original change's description:
> [include] Split out v8.h
>
> This moves every single class/function out of include/v8.h into a
> separate header in include/, which v8.h then includes so that
> externally nothing appears to have changed.
>
> Every include of v8.h from inside v8 has been changed to a more
> fine-grained include.
>
> Previously inline functions defined at the bottom of v8.h would call
> private non-inline functions in the V8 class. Since that class is now
> in v8-initialization.h and is rarely included (as that would create
> dependency cycles), this is not possible and so those methods have been
> moved out of the V8 class into the namespace v8::api_internal.
>
> None of the previous files in include/ now #include v8.h, which means
> if embedders were relying on this transitive dependency then it will
> give compile failures.
>
> v8-inspector.h does depend on v8-scripts.h for the time being to ensure
> that Chrome continue to compile but that change will be reverted once
> those transitive #includes in chrome are changed to include it directly.
>
> Full design:
> https://docs.google.com/document/d/1rTD--I8hCAr-Rho1WTumZzFKaDpEp0IJ8ejZtk4nJdA/edit?usp=sharing
>
> Bug: v8:11965
> Change-Id: I53b84b29581632710edc80eb11f819c2097a2877
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097448
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76424}

Cq-Include-Trybots: luci.v8.try:v8_linux_vtunejit
Bug: v8:11965
Change-Id: I99f5d3a73bf8fe25b650adfaf9567dc4e44a09e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3113629Reviewed-by: 's avatarLeszek Swirski <leszeks@chromium.org>
Reviewed-by: 's avatarCamillo Bruni <cbruni@chromium.org>
Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
Reviewed-by: 's avatarJakob Kummerow <jkummerow@chromium.org>
Reviewed-by: 's avatarSimon Zünd <szuend@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76460}
      ec06bb6c
  5. 23 Aug, 2021 2 commits
    • Dan Elphick's avatar
      Revert "[include] Split out v8.h" · 44fe02ce
      Dan Elphick authored 
      This reverts commit d1b27019.

Reason for revert: Broke vtune build, tsan build and possibly others

Original change's description:
> [include] Split out v8.h
>
> This moves every single class/function out of include/v8.h into a
> separate header in include/, which v8.h then includes so that
> externally nothing appears to have changed.
>
> Every include of v8.h from inside v8 has been changed to a more
> fine-grained include.
>
> Previously inline functions defined at the bottom of v8.h would call
> private non-inline functions in the V8 class. Since that class is now
> in v8-initialization.h and is rarely included (as that would create
> dependency cycles), this is not possible and so those methods have been
> moved out of the V8 class into the namespace v8::api_internal.
>
> None of the previous files in include/ now #include v8.h, which means
> if embedders were relying on this transitive dependency then it will
> give compile failures.
>
> v8-inspector.h does depend on v8-scripts.h for the time being to ensure
> that Chrome continue to compile but that change will be reverted once
> those transitive #includes in chrome are changed to include it directly.
>
> Full design:
> https://docs.google.com/document/d/1rTD--I8hCAr-Rho1WTumZzFKaDpEp0IJ8ejZtk4nJdA/edit?usp=sharing
>
> Bug: v8:11965
> Change-Id: I53b84b29581632710edc80eb11f819c2097a2877
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097448
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76424}

Bug: v8:11965
Change-Id: Id57313ae992e720c8b19abc975cd69729e1344aa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3113627
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76428}
      44fe02ce
    • Dan Elphick's avatar
      [include] Split out v8.h · d1b27019
      Dan Elphick authored 
      This moves every single class/function out of include/v8.h into a
separate header in include/, which v8.h then includes so that
externally nothing appears to have changed.

Every include of v8.h from inside v8 has been changed to a more
fine-grained include.

Previously inline functions defined at the bottom of v8.h would call
private non-inline functions in the V8 class. Since that class is now
in v8-initialization.h and is rarely included (as that would create
dependency cycles), this is not possible and so those methods have been
moved out of the V8 class into the namespace v8::api_internal.

None of the previous files in include/ now #include v8.h, which means
if embedders were relying on this transitive dependency then it will
give compile failures.

v8-inspector.h does depend on v8-scripts.h for the time being to ensure
that Chrome continue to compile but that change will be reverted once
those transitive #includes in chrome are changed to include it directly.

Full design:
https://docs.google.com/document/d/1rTD--I8hCAr-Rho1WTumZzFKaDpEp0IJ8ejZtk4nJdA/edit?usp=sharing

Bug: v8:11965
Change-Id: I53b84b29581632710edc80eb11f819c2097a2877
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097448Reviewed-by: 's avatarYang Guo <yangguo@chromium.org>
Reviewed-by: 's avatarCamillo Bruni <cbruni@chromium.org>
Reviewed-by: 's avatarJakob Kummerow <jkummerow@chromium.org>
Reviewed-by: 's avatarLeszek Swirski <leszeks@chromium.org>
Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76424}
      d1b27019
  7. 30 Jul, 2021 1 commit
    • Clemens Backes's avatar
      [base] Avoid pthread_rwlock_t on Mac · 3a44f269
      Clemens Backes authored 
      pthread_rwlock_t can deadlock on Mac if signals are sent to the process
in the wrong moment. Since we use processes e.g. for sampling profiling
(in both d8 and in Chrome), we hence cannot safely use pthread_rwlock_t
on Mac. Instead, fall back to a non-shared pthread_mutex_t.

Interestingly, this shows no measurable performance impact in Wasm
compilation on my MBP.

R=mlippautz@chromium.org

Bug: v8:11399
Change-Id: Ie8bfd5288bba8c4f3315ee4502b39b59d39c9bbd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3060480Reviewed-by: 's avatarVictor Gomes <victorgomes@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76015}
      3a44f269
  9. 19 May, 2021 1 commit
  11. 28 Nov, 2020 1 commit
  13. 13 Feb, 2019 1 commit
  15. 21 Jan, 2019 3 commits
    • Peter Marshall's avatar
      [cpu-profiler] Remove registration and sampling depth from Sampler · 1f1bd71d
      Peter Marshall authored 
      Simplify the internal state of Sampler a bit. There are basically two
users of Sampler - the CpuSampler used by the CpuProfiler and the
Ticker used by log.cc. Ticker calls Start/Stop to manage the Sampler
lifetime, but CpuProfiler does not. This leads to much confusion and
overlap of functionality.

Fix that here by removing the distinction between active, registered
and isProfiling states. These are now all the same thing and are
represented by IsActive(). The state is set to active when Start is
called, and set inactive when Stop is called. Both users of Sampler
now call Start and Stop at appropriate times.

The concept of profiling depth was not used - each Sampler would
only ever have a sampling depth of 1. We still need to call
SignalHandler::IncreaseSamplerCount(), so we do that in Start
and the corresponding DecreaseSamplerCount() in Stop.

Change-Id: I16a9435d26169a7dd00b1c7876e66af45f12e4b0
Reviewed-on: https://chromium-review.googlesource.com/c/1424337
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58955}
      1f1bd71d
    • Peter Marshall's avatar
      [cpu-profiler] Cleanup and use std atomics in Sampler · ba565577
      Peter Marshall authored 
      There's no reason to use our self-baked atomics anymore. Also

- Changes two boolean values to use a boolean instead of an int
- Uses a unique ptr for data_
- Removes has_processing_thread_ which is not used
- Moves most initialization inline into the class
- Removes SetUp/TearDown which weren't needed

Change-Id: I8f50133636961502d56351abd2fb17196603a01a
Reviewed-on: https://chromium-review.googlesource.com/c/1422918
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58950}
      ba565577
    • Peter Marshall's avatar
      [cpu-profiler] Add tests for sampler.cc · 5aa361ff
      Peter Marshall authored 
      Moved class definitions into header

Change-Id: I2d3e5ec6f8f5068284cdbaa6900797950fc7e01a
Reviewed-on: https://chromium-review.googlesource.com/c/1422739
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58946}
      5aa361ff
  17. 14 Sep, 2018 1 commit
  19. 01 Sep, 2016 1 commit
  21. 10 Aug, 2016 1 commit
  23. 11 Jul, 2016 1 commit
  25. 08 Jul, 2016 2 commits
  27. 26 May, 2016 1 commit
    • lpy's avatar
      Reland: Create libsampler as V8 sampler library. · a0198c0f
      lpy authored 
      This patch does five things:

1. Extracts sampler as libsampler to provide sampling functionality support.
2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
3. Removes sampler.[h|cc].
4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
5. Creates SamplerManager to manage the relationship between samplers and threads.

The reason we port hashmap.h is that in debug mode, STL containers are using
mutexes from a mutex pool, which may lead to deadlock when using asynchronously
signal handler.

Currently libsampler is used in V8 temporarily.

BUG=v8:4789
LOG=n

Committed: https://crrev.com/06cc9b7c176a6223971deaa9fbcafe1a05058c7b
Cr-Commit-Position: refs/heads/master@{#36527}

Review-Url: https://codereview.chromium.org/1922303002
Cr-Commit-Position: refs/heads/master@{#36532}
      a0198c0f
  29. 25 May, 2016 2 commits
    • lpy's avatar
      Revert of Create libsampler as V8 sampler library. (patchset #24 id:460001 of... · 636f1e8e
      lpy authored 
      Revert of Create libsampler as V8 sampler library. (patchset #24 id:460001 of https://codereview.chromium.org/1922303002/ )

Reason for revert:
V8 Linux64 TSAN failure because ThreadSanitizer indicated data race.

Original issue's description:
> Create libsampler as V8 sampler library.
>
> This patch does five things:
>
> 1. Extracts sampler as libsampler to provide sampling functionality support.
> 2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
> 3. Removes sampler.[h|cc].
> 4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
> 5. Creates SamplerManager to manage the relationship between samplers and threads.
>
> The reason we port hashmap.h is that in debug mode, STL containers are using
> mutexes from a mutex pool, which may lead to deadlock when using asynchronously
> signal handler.
>
> Currently libsampler is used in V8 temporarily.
>
> BUG=v8:4789
> LOG=n
>
> Committed: https://crrev.com/06cc9b7c176a6223971deaa9fbcafe1a05058c7b
> Cr-Commit-Position: refs/heads/master@{#36527}

TBR=jochen@chromium.org,alph@chromium.org,fmeawad@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4789

Review-Url: https://codereview.chromium.org/2000323007
Cr-Commit-Position: refs/heads/master@{#36529}
      636f1e8e
    • lpy's avatar
      Create libsampler as V8 sampler library. · 06cc9b7c
      lpy authored 
      This patch does five things:

1. Extracts sampler as libsampler to provide sampling functionality support.
2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
3. Removes sampler.[h|cc].
4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
5. Creates SamplerManager to manage the relationship between samplers and threads.

The reason we port hashmap.h is that in debug mode, STL containers are using
mutexes from a mutex pool, which may lead to deadlock when using asynchronously
signal handler.

Currently libsampler is used in V8 temporarily.

BUG=v8:4789
LOG=n

Review-Url: https://codereview.chromium.org/1922303002
Cr-Commit-Position: refs/heads/master@{#36527}
      06cc9b7c