Commit Graph

192 Commits

Author SHA1 Message Date
Clemens Hammacher
ed8efcf4f1 [Makefile] Move tags generation to standalone Makefile
After deprecating the top-file Makefile, "make tags" cannot easily be
used any more. Moving the tags-related rules out to a separate Makefile
allows to continue using it using either "make -f tools/Makefile.tags
tags", or including it in your own Makefile.

R=yangguo@chromium.org
CC=ahaas@chromium.org

Bug: v8:7346
Change-Id: Id2a8186c392fbca4d144b166d598c9e930defa37
Reviewed-on: https://chromium-review.googlesource.com/881018
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50889}
2018-01-26 12:03:32 +00:00
Yang Guo
4943f4f6f3 [gyp] move cctest.gyp
R=machenbach@chromium.org

Bug: v8:7341
Change-Id: I8ab5cadbff2428f43ee1f240c58c53f14c2a8df3
Reviewed-on: https://chromium-review.googlesource.com/883201
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50859}
2018-01-25 08:59:08 +00:00
Yang Guo
f9934aa9cf [gyp] move gyp files from src to gypfiles.
Bug: v8:7341
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I90879be3a94745859b7da7c9bb9b6533af11cc2d
Reviewed-on: https://chromium-review.googlesource.com/878221
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50790}
2018-01-23 09:54:36 +00:00
Yang Guo
20ed6786ba Deprecate Makefile.
This is the first step towards getting rid of GYP configs.

R=machenbach@chromium.org

Bug: v8:7335
Change-Id: I688a9ff7a09c7cac67cfef8d74a893f2a6d00a8c
Reviewed-on: https://chromium-review.googlesource.com/876122
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50716}
2018-01-19 13:31:46 +00:00
Michael Achenbach
23a575171f [test] Continued test support for make targets
This adds a wrapper script for run-tests.py that continues support for
iterating over multiple modes and architectures.

This also fixes a bug of the auto-detect target in gyp.

Bug: chromium:772804
Change-Id: I61ff47b12e1925e010d822327a8aae8c402f435d
Reviewed-on: https://chromium-review.googlesource.com/730225
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48794}
2017-10-20 15:01:51 +00:00
Ulan Degenbaev
d8d47effe1 [heap] Port concurrent marking flag to GYP.
This enables concurrent marking for x86 and x64 on GYP builds.

Bug: chromium:694255
Change-Id: I371b38e72ce0e8f7ad5b0eed4e29b223b9ed1cf4
Reviewed-on: https://chromium-review.googlesource.com/628836
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47551}
2017-08-23 15:26:43 +00:00
Jakob Kummerow
e825c4318e Remove x87 port
Bug: v8:6550
Change-Id: I888f91db1fd842d1fef8a5fb749da229dfb6ab97
Reviewed-on: https://chromium-review.googlesource.com/575756
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46746}
2017-07-18 18:20:40 +00:00
Michael Starzinger
d2066154c8 [build] Life support for top-level Makefile.
R=jkummerow@chromium.org

Change-Id: I8e972d27c3f106b7838b4341a053b07f516d7c1e
Reviewed-on: https://chromium-review.googlesource.com/527035
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45762}
2017-06-07 13:10:40 +00:00
yangguo
9d71683e11 Introduce mkgrokdump to update tools/v8heapconst.py.
- Migrate make grokdump to GYP and GN
- Move code from d8 into stand-alone execution
- Add test case to ensure it's up-to-date

Review-Url: https://codereview.chromium.org/2809653003
Cr-Original-Original-Commit-Position: refs/heads/master@{#44687}
Committed: 0cc0c130fa
Review-Url: https://codereview.chromium.org/2809653003
Cr-Original-Commit-Position: refs/heads/master@{#44710}
Committed: 477f005574
Review-Url: https://codereview.chromium.org/2809653003
Cr-Commit-Position: refs/heads/master@{#44738}
2017-04-20 06:15:02 +00:00
machenbach
84b22eb29f Revert of Introduce mkgrokdump to update tools/v8heapconst.py. (patchset #21 id:390001 of https://codereview.chromium.org/2809653003/ )
Reason for revert:
Test driver runs into assert:
https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/17082

Original issue's description:
> Introduce mkgrokdump to update tools/v8heapconst.py.
>
> - Migrate make grokdump to GYP and GN
> - Move code from d8 into stand-alone execution
> - Add test case to ensure it's up-to-date
>
> Review-Url: https://codereview.chromium.org/2809653003
> Cr-Original-Commit-Position: refs/heads/master@{#44687}
> Committed: 0cc0c130fa
> Review-Url: https://codereview.chromium.org/2809653003
> Cr-Commit-Position: refs/heads/master@{#44710}
> Committed: 477f005574

TBR=mstarzinger@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2826743003
Cr-Commit-Position: refs/heads/master@{#44711}
2017-04-19 07:03:00 +00:00
yangguo
477f005574 Introduce mkgrokdump to update tools/v8heapconst.py.
- Migrate make grokdump to GYP and GN
- Move code from d8 into stand-alone execution
- Add test case to ensure it's up-to-date

Review-Url: https://codereview.chromium.org/2809653003
Cr-Original-Commit-Position: refs/heads/master@{#44687}
Committed: 0cc0c130fa
Review-Url: https://codereview.chromium.org/2809653003
Cr-Commit-Position: refs/heads/master@{#44710}
2017-04-19 06:10:15 +00:00
yangguo
0e12ac85c1 Revert of Introduce mkgrokdump to update tools/v8heapconst.py. (patchset #19 id:350001 of https://codereview.chromium.org/2809653003/ )
Reason for revert:
http://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/17063/steps/Check/logs/mkgrokdump

Original issue's description:
> Introduce mkgrokdump to update tools/v8heapconst.py.
>
> - Migrate make grokdump to GYP and GN
> - Move code from d8 into stand-alone execution
> - Add test case to ensure it's up-to-date
>
> Review-Url: https://codereview.chromium.org/2809653003
> Cr-Commit-Position: refs/heads/master@{#44687}
> Committed: 0cc0c130fa

TBR=mstarzinger@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2824853003
Cr-Commit-Position: refs/heads/master@{#44691}
2017-04-18 14:41:13 +00:00
yangguo
0cc0c130fa Introduce mkgrokdump to update tools/v8heapconst.py.
- Migrate make grokdump to GYP and GN
- Move code from d8 into stand-alone execution
- Add test case to ensure it's up-to-date

Review-Url: https://codereview.chromium.org/2809653003
Cr-Commit-Position: refs/heads/master@{#44687}
2017-04-18 14:05:27 +00:00
danno
5344571580 Make enabling of CSA verifier a build-time flag
BUG=chromium:685561

Review-Url: https://codereview.chromium.org/2650273006
Cr-Commit-Position: refs/heads/master@{#42734}
2017-01-27 11:32:27 +00:00
Miran.Karic
a18be72c8e Add v8_os_page_size flag for cross compilation
When generating snapshot on a machine with a different page size than
the target machine, we can run into problems as the v8 page area size
changes. This is because v8 has page guards which depend on os page
size, so if the target has larger os page, v8 page area is smaller and
may not fit the contents.

The solution proposed here is adding a flag, v8_os_page_size, that
would, if used, override local os page size and use the one specified
during snapshot generation.

BUG=

Review-Url: https://codereview.chromium.org/2488403003
Cr-Commit-Position: refs/heads/master@{#40997}
2016-11-15 14:41:03 +00:00
yangguo
43ab247f56 Remove NaCl support.
Review-Url: https://codereview.chromium.org/2175193003
Cr-Commit-Position: refs/heads/master@{#38081}
2016-07-27 07:50:31 +00:00
machenbach
9b4f098943 [test] Remove presubmit logic from test runner.
Having presubmit called from within the test runner often
requires logic to remove the call again.

After the GN transition it would be better if presubmit is
called by a wrapper script if needed at all. It is run
on upload and on the tryservers anyways.

BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2114653002
Cr-Commit-Position: refs/heads/master@{#37447}
2016-06-30 14:30:43 +00:00
bjaideep
1298aef51f PPC/s390: [build] fix target_arch for ppc/s390 native builds
target_arch is incorrectly set for the ppc/s390 native builds.
    The target name returned by g++ is not a subset of the target name
    passed as Make argument and therefore defaults to ia32. Adding
    a few more swap rules to set the target_arch correctly.
    This change shouldn't affect the simulator builds.

    The change to set target_arch to ia32 was added as part of:
    https://codereview.chromium.org/2045173003

R=machenbach@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2077733002
Cr-Commit-Position: refs/heads/master@{#37071}
2016-06-17 13:57:09 +00:00
machenbach
0d4983fbb8 [build] Ensure target_arch is set correctly in toplevel Makefile
This sets the target_arch for simulator builds.

Fix needed for https://codereview.chromium.org/2028623002/

BUG=chromium:616032
NOTRY=true

Review-Url: https://codereview.chromium.org/2045173003
Cr-Commit-Position: refs/heads/master@{#36826}
2016-06-08 13:54:13 +00:00
mstarzinger
4267a2ebe7 [build] Fix Makefile based (native) build.
This fixes the Python include path after the GYP files have been
relocated into another directory. It only affects 'make native', other
targets have been fixed in previous changes already.

R=jkummerow@chromium.org

Review-Url: https://codereview.chromium.org/2001053003
Cr-Commit-Position: refs/heads/master@{#36432}
2016-05-23 09:16:24 +00:00
mstarzinger
ee69b4ff31 [build] Fix Makefile based build.
This fixes the Python include path after the GYP files have been
relocated into another directory.

R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/1938893002
Cr-Commit-Position: refs/heads/master@{#35928}
2016-05-02 09:42:11 +00:00
machenbach
3bf44848c3 [gn] Move build to gypfiles
This prepares for pulling chromium's build as dependency for
gn. After this, the files in build and gypfiles need to stay
in sync until chromium is updated.

BUG=chromium:474921
LOG=n

Review-Url: https://codereview.chromium.org/1848553003
Cr-Commit-Position: refs/heads/master@{#35898}
2016-04-29 10:11:11 +00:00
machenbach
7f3954c57b [build] Move gyp folder
Uses now the same location chromium uses and which some tools
expect.

BUG=chromium:474921
LOG=n

Review URL: https://codereview.chromium.org/1929473002

Cr-Commit-Position: refs/heads/master@{#35817}
2016-04-27 12:37:35 +00:00
machenbach
cb855fe728 [build] Prepare moving v8.gyp to src/
This will allow to pull in gyp as a deps to the same location
as chromium (tools/gyp not build/gyp), needed for gn switch.

This is the first step of a 3-way move.
1) Copy v8.gyp in v8
2) Update references in embedders (follow up)
3) Remove old v8.gyp (follow up)

BUG=chromium:474921
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1920793002

Cr-Commit-Position: refs/heads/master@{#35760}
2016-04-25 12:20:24 +00:00
robtsuk
31355336d1 Fix android_arm build hosted on Mac
Fixes for misnamed toolchain from https://github.com/appcelerator/v8_titanium.

Added a way to specify the NDK path since the Mac versions of the NDK aren't checked into the tools repo.

Disabled a few dependencies which do not build on the Mac but which aren't needed for building usable V8 static libraries.

Made the including of libdl and librt omitted for Mac hosted builds.

BUG=

Review URL: https://codereview.chromium.org/1879793002

Cr-Commit-Position: refs/heads/master@{#35456}
2016-04-13 23:13:35 +00:00
clemensh
79b1ab61c2 Add a make target for generating Ctags file
This is very similar to the existing rule for a GTAGS file, and reuses
parts of it (the gtags.files file).

R=ahaas@chromium.org, mstarzinger@chromium.org, titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1873253002

Cr-Commit-Position: refs/heads/master@{#35435}
2016-04-13 09:21:06 +00:00
yangguo
f507bc1c72 [serializer] Add API to warm up startup snapshot with an additional script.
A startup snapshot is considered cold when it does not contain any
function code. We can now create a warm startup snapshot from a cold one
by running a warm-up script. Functions exercised by the warm-up script
are compiled and its code included in the warm startup snapshot. Side
effects caused by the warm-up script does not persist.

R=vogelheim@chromium.org
BUG=v8:4836
LOG=Y

Review URL: https://codereview.chromium.org/1805903002

Cr-Commit-Position: refs/heads/master@{#34849}
2016-03-17 10:34:16 +00:00
ssanfilippo
8136372a46 Add option in Makefile to preserve frame pointer.
LOG=N

Review URL: https://codereview.chromium.org/1778073003

Cr-Commit-Position: refs/heads/master@{#34670}
2016-03-10 12:59:50 +00:00
jochen
cf0435881c Add a library suitable for libfuzzer with a small unit test runner shell
BUG=chromium:577261
R=machenbach@chromium.org,jarin@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1604203002

Cr-Commit-Position: refs/heads/master@{#33508}
2016-01-26 10:39:03 +00:00
joransiu
1091c2f07e S390: Makefile + Build Toolchain Updates
This is the first of several commits to contribute Linux on z Systems
(s390/s390x) port of V8.  We will be breaking up the changes into several
(hopefully) logical commits.

This commit contains the changes to V8 Makefile and build toolchains to
introduce S390 macros and compiler options.  Just for awareness for reviewers
is that s390 is 31-bit (not 32!) big-endian platform on Linux on z.  (MSB of address
is used to distinguish between 24-bit vs 31-bit addressing!)  s390x is
64-bit Linux on z.  Names follow the general linux convention on the platform.

A quick roadmap on upcoming commits:
- Add \#include of S390 header files in common files
- S390 related tests + tooling changes
- printf macro for printing size_t values.
- S390 platform-specific code generation code (bulk of changes!)

R=danno@chromium.org,svenpanne@chromium.org,michael_dawson@ca.ibm.com,jyan@ca.ibm.com,mtbrandyberry@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1585813002

Cr-Commit-Position: refs/heads/master@{#33304}
2016-01-14 17:17:11 +00:00
bradnelson
0e8b7ec8b1 Remove wasm compile time option and enable wasm behind a runtime flag.
Deferring enabling of tests to separate per platform CLs.

R=machenbach@chromium.org,titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1553083003

Cr-Commit-Position: refs/heads/master@{#33123}
2016-01-05 18:06:54 +00:00
machenbach
2a09d7f9b5 Revert of Remove wasm compile time option and enable wasm behind a runtime flag. (patchset #54 id:1050001 of https://codereview.chromium.org/1516753007/ )
Reason for revert:
[Sheriff] Some build failures, e.g.:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/builds/7502

Original issue's description:
> Remove wasm compile time option and enable wasm behind a runtime flag.
>
> R=titzer@chromium.org
> BUG=
>
> Committed: https://crrev.com/153f2bd47cce9d5dfa74074dda34c02731d96924
> Cr-Commit-Position: refs/heads/master@{#32955}

TBR=titzer@chromium.org,bradnelson@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1531073003

Cr-Commit-Position: refs/heads/master@{#32957}
2015-12-17 17:59:00 +00:00
bradnelson
153f2bd47c Remove wasm compile time option and enable wasm behind a runtime flag.
R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1516753007

Cr-Commit-Position: refs/heads/master@{#32955}
2015-12-17 16:04:57 +00:00
dusan.m.milosavljevic
8bd431de92 MIPS64: Add big-endian support for mips64.
TEST=
BUG=

Review URL: https://codereview.chromium.org/1334793004

Cr-Commit-Position: refs/heads/master@{#31011}
2015-09-29 17:23:55 +00:00
mvstanton
18bba7cb41 Vector ICs: gyp flag to run with vector-stores on.
This is so we can build with the flag on in the snapshot.
D8 then needs to be run with --vector-stores.

BUG=
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1339593002

Cr-Commit-Position: refs/heads/master@{#30692}
2015-09-11 10:00:17 +00:00
bradnelson
dacb3d76a7 Add a makefile option for wasm prototype.
Adding wasm=on when invoking make will build with the wasm prototype, Ex:

make x64.debug wasm=on V=1

BUG=None
TEST=manual
R=titzer@chromium.org,ncbray@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1293073004

Cr-Commit-Position: refs/heads/master@{#30236}
2015-08-18 18:25:31 +00:00
yangguo
8e027195b4 Remove readline support from d8.
Nobody seems to use it. A good alternative is rlwrap.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1250223002

Cr-Commit-Position: refs/heads/master@{#29810}
2015-07-23 13:20:31 +00:00
rmcilroy
91255190ea Add goma=on option to Makefile build.
Review URL: https://codereview.chromium.org/1225683010

Cr-Commit-Position: refs/heads/master@{#29551}
2015-07-09 09:50:59 +00:00
machenbach
d70419e474 [android] Completly move path logic to gyp config.
BUG=chromium:502176
LOG=n

Review URL: https://codereview.chromium.org/1203653002

Cr-Commit-Position: refs/heads/master@{#29245}
2015-06-24 05:35:14 +00:00
machenbach
2197ef2aaf [android] Merge gyp configurations.
The merge makes it possible to reuse variables from the
android configuration in standalone.gypi.

BUG=chromium:502176
LOG=n

Review URL: https://codereview.chromium.org/1196253002

Cr-Commit-Position: refs/heads/master@{#29189}
2015-06-22 13:17:23 +00:00
jochen
29deaef505 Introduce a new gyp flag to warn about to be deprecated APIs
This should help to keep syntax errors from creeping into v8.h

Also, I'll remove usages of to-be-deprecated APIs and turn this flag on
for standalone builds

BUG=4134
R=vogelheim@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1149633003

Cr-Commit-Position: refs/heads/master@{#28538}
2015-05-21 10:34:22 +00:00
Jakob Kummerow
2064c3c9b2 Makefile: introduce debugsymbols=on flag
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1085283002

Cr-Commit-Position: refs/heads/master@{#27852}
2015-04-15 15:20:18 +00:00
Weiliang Lin
a5fa093d0b introduce android_x64 build target
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/966773005

Cr-Commit-Position: refs/heads/master@{#27055}
2015-03-09 03:23:12 +00:00
machenbach
5577dbdcf1 Remove version generation approach.
Revert "Partially reland Auto-generate v8 version based on tags."

This reverts commit 0707afc863.

Revert "Ensure tags are fetched when generating the V8 version."

This reverts commit ea6831e9de.

Revert "Restrict tag-update for version generation to cached git repos."

This reverts commit c6641e138b.

BUG=chromium:446166
LOG=n

Review URL: https://codereview.chromium.org/866263005

Cr-Commit-Position: refs/heads/master@{#26244}
2015-01-23 10:45:39 +00:00
machenbach
0707afc863 Partially reland Auto-generate v8 version based on tags.
This relands parts of
https://codereview.chromium.org/843913009

It prepares for using this script outside of v8, e.g. in a
chromium hook.

The script is intended to run as a hook and will create
version_gen.cc if the content has changed.

Changes to gyp and gn files can land as a follow up, once
calling the hook on the chromium side has landed.

BUG=chromium:446166
LOG=n

Review URL: https://codereview.chromium.org/830093003

Cr-Commit-Position: refs/heads/master@{#26144}
2015-01-19 16:23:39 +00:00
jochen
9d25205b29 Revert of Temporarily restore make dependencies (patchset #1 id:1 of https://codereview.chromium.org/733203008/)
Reason for revert:
make dependencies is stale now, and everybody should have switched over

Original issue's description:
> Temporarily restore make dependencies
>
> We will remove dependencies in about a week again.
>
> BUG=none
> R=machenbach@chromium.org
> LOG=y

TBR=machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/791813007

Cr-Commit-Position: refs/heads/master@{#26134}
2015-01-19 13:21:16 +00:00
Sven Panne
e4c5b84652 Contribution of PowerPC port (continuation of 422063005)
Contribution of PowerPC port (continuation of 422063005). The inital patch
covers the core changes to the common files.  Subsequent patches will cover
changes to common files to support AIX and to update the ppc directories so
they are current with the changes in the rest of the project.

This is based off of the GitHub repository
https://github.com/andrewlow/v8ppc

BUG=
R=svenpanne@chromium.org, danno@chromium.org, sevnpanne@chromium.org

Review URL: https://codereview.chromium.org/817143002

Cr-Commit-Position: refs/heads/master@{#26091}
2015-01-16 07:42:15 +00:00
jochen
5d22f59d7b Update gyp files to guarantee proper recreation when changing deps
Also make sure that x86_64 is mapped to x64 as target arch

R=machenbach@chromium.org
LOG=n
BUG=none

Review URL: https://codereview.chromium.org/846363002

Cr-Commit-Position: refs/heads/master@{#26052}
2015-01-14 12:48:36 +00:00
yangguo
39cd762c6c Embed custom script into the snapshot.
R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/845973003

Cr-Commit-Position: refs/heads/master@{#26029}
2015-01-12 15:26:31 +00:00
jochen
aeb09e6dcf Merge v8_optimized_debug 1 and 2
All builders that used level 1 should meanwhile define
v8_enable_slow_dchecks, and so they can use level 2 without losing
coverage. Level 2, however, is considerably faster, so we want to use it
on those builders as well. The make optdebug setting is not affected by
this change.

BUG=none
R=machenbach@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/847753002

Cr-Commit-Position: refs/heads/master@{#26019}
2015-01-12 09:58:42 +00:00