Enable Arm64 target arch in gyp build config

Enable Arm64 target arch in gyp build config

Initial support to get us started.  There is a lot more work to do before we can compile for arm64.

BUG=354405
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=258363

[rmcilroy, 2014-03-20 14:55:15]

joi@chromium.org: Please review changes in components/nacl

[Nico, 2014-03-20 15:00:19]

Please add "BUG=354405"

https://codereview.chromium.org/199583008/diff/70001/build/build_config.h
File build/build_config.h (right):

https://codereview.chromium.org/199583008/diff/70001/build/build_config.h#new...
build/build_config.h:110: #elif defined(__arm64__) || defined(__aarch64__)
(Ross tells me that iOS uses __arm64__)

https://codereview.chromium.org/199583008/diff/70001/build/common.gypi
File build/common.gypi (right):

https://codereview.chromium.org/199583008/diff/70001/build/common.gypi#newcod...
build/common.gypi:3411: ['_toolset=="target"', {
Medium term, we probably want to share quite a bit with the target_arch=="arm"
branch above here (at least the clang bits). Fine for now; eventually maybe this
should be in a gypi included in both places, or one conditional for arm or
arm64, or…

https://codereview.chromium.org/199583008/diff/70001/skia/skia_library_opts.gyp
File skia/skia_library_opts.gyp (right):

https://codereview.chromium.org/199583008/diff/70001/skia/skia_library_opts.g...
skia/skia_library_opts.gyp:63: [ 'target_arch == "arm"', {
Likely want arm64 here too eventually.

[Nico, 2014-03-20 15:00:27]

Oh, and lgtm with that.

[Jói, 2014-03-20 15:00:46]

//components LGTM

[rmcilroy, 2014-03-20 15:13:15]

The CQ bit was checked by rmcilroy@chromium.org

[commit-bot: I haz the power, 2014-03-20 15:13:18]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rmcilroy@chromium.org/199583008/120001

[commit-bot: I haz the power, 2014-03-20 15:14:52]

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

[commit-bot: I haz the power, 2014-03-20 15:14:52]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_clang_dbg

[rmcilroy, 2014-03-20 15:14:53]

Thanks for the reviews all!

https://codereview.chromium.org/199583008/diff/70001/build/common.gypi
File build/common.gypi (right):

https://codereview.chromium.org/199583008/diff/70001/build/common.gypi#newcod...
build/common.gypi:3411: ['_toolset=="target"', {
On 2014/03/20 15:00:20, Nico (on GMT time Mar 15 - 24) wrote:
> Medium term, we probably want to share quite a bit with the target_arch=="arm"
> branch above here (at least the clang bits). Fine for now; eventually maybe
this
> should be in a gypi included in both places, or one conditional for arm or
> arm64, or…

A lot of the non-clang arm stuff isn't really relevant for arm64 (arm_fpu and
arm_float_abi will always be the same on armv8, and there is no thumb2), but
agreed - once we have some more stuff to share then doing it in a bit better
structured way would be better.

https://codereview.chromium.org/199583008/diff/70001/skia/skia_library_opts.gyp
File skia/skia_library_opts.gyp (right):

https://codereview.chromium.org/199583008/diff/70001/skia/skia_library_opts.g...
skia/skia_library_opts.gyp:63: [ 'target_arch == "arm"', {
On 2014/03/20 15:00:20, Nico (on GMT time Mar 15 - 24) wrote:
> Likely want arm64 here too eventually.

Yes, some bits for sure.  I added a todo for now.

[rmcilroy, 2014-03-20 15:33:22]

The CQ bit was checked by rmcilroy@chromium.org

[commit-bot: I haz the power, 2014-03-20 15:34:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rmcilroy@chromium.org/199583008/140001

[commit-bot: I haz the power, 2014-03-20 15:37:47]

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

[commit-bot: I haz the power, 2014-03-20 15:37:47]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_clang_dbg

[rmcilroy, 2014-03-20 15:41:03]

The CQ bit was unchecked by rmcilroy@chromium.org

[rmcilroy, 2014-03-20 15:48:59]

The CQ bit was checked by rmcilroy@chromium.org

[commit-bot: I haz the power, 2014-03-20 15:49:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rmcilroy@chromium.org/199583008/160001

[commit-bot: I haz the power, 2014-03-20 18:35:54]

Change committed as 258363