|exclude_imports| flag is set in some of the perfetto's proto_library
targets to indicate that we don't need to generate the proto-descriptor
for the protos included in those `x.proto` files. In this CL we use that
flag to conditionally pass `--include_imports` argument to protoc.

This is similar to the CL (https://crrev.com/c/2632759)

Bug: b:236945541
Change-Id: I0689003978096798d1e966ec8485cd6af7237804
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3721616Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Mohit Saini <mohitms@google.com>
Cr-Commit-Position: refs/heads/main@{#81356}

If V8 is running in a context where Perfetto hasn't been initialized
(e.g., as part of mksnapshot), don't try to initialize track events
either.

Since perfetto::Tracing::IsInitialized() was only added recently, we
also roll Perfetto to the latest revision. This also requires updating
the proto_library GN template together with the underlying libprotobuf
dependency.

Bug: chromium:1006541
Change-Id: Icec626b7ed78264a81f1a80d73d60be3bde0d908
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2632590
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72130}

This patch removes use of the deprecated sources_assignment_filter GN
feature from gni/proto_library.gni, since the extra descriptor files are
no longer being generated.

We also roll Perfetto to match the version used in Chrome and update
test expectations accordingly.

Bug: v8:10995
Change-Id: I65cb3b79feb6e5a7e5c8d99fdb8bf999a6048539
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2454079
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70381}

This patch rolls v8 to the latest Perfetto revision. Since Perfetto has
changed the way the GN protobuf integration works, we need to make some
corresponding changes in V8.

Bug: chromium:639003
Change-Id: I263c591560503c9779bbab3ec266cfb2708fc51f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2085175Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66583}

There is a generated file config.descriptor which is an output file
for a particular target. When we try to add this to sources, it breaks
as GN no longer silently accepts files with invalid types as sources.

This breakage was due to recently-rolled changes to fix crbug.com/gn/77

Similar fixes have been used here: crbug.com/964411

Change-Id: Ica9272647c6d1ed31780a6319cf098a083a3cc57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1674032
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62340}

Add .exe to the produced executable for the protoc compiler.

Use include_dirs instead of -isystem. Remove some more warnings that
that causes.

Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: Ia6b0df63107470ec78f8038834205a0e4fe34b21
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632069
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61893}

This adds dependencies on Perfetto and Protobuf and the required
configs to build them.

The build configs are behind a gn flag (v8_use_perfetto) and
are disabled by default. Actual implementation of Perfetto will follow.

Based on Primiano's prototype:
https://chromium-review.googlesource.com/c/v8/v8/+/1290549

Bug: v8:8339
TBR: yangguo@chromium.org
Change-Id: I2b7462d567bfb0a5a3ffbbb8b6fcbf41c824e285
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1517876Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60502}