Gold: Patch linker to implement --long-plt flag.

Gold: Patch linker to implement --long-plt flag.

Also modify script to extract binutils sources from tarball and apply
patches unconditionally to avoid problems with later runs if a patch
fails to apply.

BUG=554017
R=thestig@chromium.org

Committed: https://crrev.com/b7b010e70c37389b4e0ee022e5fd09a7d6bb394d
Cr-Commit-Position: refs/heads/master@{#366267}

[Lei Zhang, 2015-12-19 05:16:54]

The CQ bit was checked by thestig@chromium.org

[Lei Zhang, 2015-12-19 05:16:54]

lgtm

[commit-bot: I haz the power, 2015-12-19 05:17:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1537083003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1537083003/1

[commit-bot: I haz the power, 2015-12-19 05:44:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-19 05:45:36]

Description was changed from

==========
Gold: Patch linker to implement --long-plt flag.

Also modify script to extract binutils sources from tarball and apply
patches unconditionally to avoid problems with later runs if a patch
fails to apply.

BUG=554017
R=thestig@chromium.org
==========

to

==========
Gold: Patch linker to implement --long-plt flag.

Also modify script to extract binutils sources from tarball and apply
patches unconditionally to avoid problems with later runs if a patch
fails to apply.

BUG=554017
R=thestig@chromium.org

Committed: https://crrev.com/b7b010e70c37389b4e0ee022e5fd09a7d6bb394d
Cr-Commit-Position: refs/heads/master@{#366267}
==========

[commit-bot: I haz the power, 2015-12-19 05:45:36]

Patchset 1 (id:??) landed as
https://crrev.com/b7b010e70c37389b4e0ee022e5fd09a7d6bb394d
Cr-Commit-Position: refs/heads/master@{#366267}

[Nico, 2015-12-23 20:54:21]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1550453002/ by thakis@chromium.org.

The reason for reverting is: Looks like this blocks pushing new clangs to goma
(maybe the new binutils weren't uploaded there?), and also didn't help with the
bug it was supposed to help with. Reverting in the hope that it'll unblock clang
rolls..