[foozzie] Support multi-architecture builds

[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
TBR=mstarzinger,jarin

Review-Url: https://codereview.chromium.org/2649133010
Cr-Commit-Position: refs/heads/master@{#42884}
Committed: https://chromium.googlesource.com/v8/v8/+/13de00c0be07c772245361e62023792f5a8ec715

[Michael Achenbach, 2017-02-02 09:30:37]

Description was changed from

==========
[foozzie] Support multi architecture builds

BUG=
==========

to

==========
[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
==========

[Michael Achenbach, 2017-02-02 09:30:37]

machenbach@chromium.org changed reviewers:
+ mstarzinger@chromium.org, tandrii@chromium.org

[Michael Achenbach, 2017-02-02 09:33:18]

machenbach@chromium.org changed reviewers:
+ jarin@chromium.org

[Michael Achenbach, 2017-02-02 09:33:18]

PTAL

[tandrii(chromium), 2017-02-02 11:29:13]

lgtm

[Michael Achenbach, 2017-02-02 11:29:40]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2017-02-02 11:29:50]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-02-02 11:29:51]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-02 11:29:52]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-v8-committers".
Note that this has nothing to do with OWNERS files.

[Michael Achenbach, 2017-02-02 11:30:59]

Description was changed from

==========
[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
==========

to

==========
[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
TBR=mstarzinger,jarin
==========

[Michael Achenbach, 2017-02-02 11:31:03]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2017-02-02 11:31:12]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-02-02 11:32:53]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1486035063770540,
"parent_rev": "cb19ecd610ee0e7f8bc661616cdb9ca4e9ea804b", "commit_rev":
"13de00c0be07c772245361e62023792f5a8ec715"}

[commit-bot: I haz the power, 2017-02-02 11:33:00]

Description was changed from

==========
[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
TBR=mstarzinger,jarin
==========

to

==========
[foozzie] Support multi-architecture builds

This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.

Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.

Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).

The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.

BUG=chromium:673246
NOTRY=true
TBR=mstarzinger,jarin

Review-Url: https://codereview.chromium.org/2649133010
Cr-Commit-Position: refs/heads/master@{#42884}
Committed:
https://chromium.googlesource.com/v8/v8/+/13de00c0be07c772245361e62023792f5a8...
==========

[commit-bot: I haz the power, 2017-02-02 11:33:01]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/v8/v8/+/13de00c0be07c772245361e62023792f5a8...

[Michael Starzinger, 2017-02-02 11:37:07]

LGTM (owner-stamp, I am not familiar enough with the build system to do a proper
review).