Initial JS stub implementation of Object.observe. Adds support for .object/.unobserve/.notify/.deliverChangeRecords. No delivery mechanism is implemented for end-of-microtask.

Review URL: https://codereview.chromium.org/11225058
Patch from Rafael Weinstein <rafaelw@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=v8:1490

Review URL: https://codereview.chromium.org/11264035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11272029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://chromiumcodereview.appspot.com/11275039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

With the --expose_gc option, gc() is exposed to JavaScript. Currently gc() triggers a full GC.

To enable JavaScript to test the behavior of a scavenger GC, this patch exposes gc(true). If the first argument is true, gc(...) triggers a scavenger GC. Otherwise, gc(...) triggers a full GC.

BUG=
Test=Manually confirmed that gc() and gc(false) trigger a full GC and that gc(true) triggers a scavenger GC.

Review URL: https://codereview.chromium.org/11232065
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12815 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Changes include:
 - inline functions in a way as not to waste stack space.
 - reset StackReserveSize to the value prior to r12808.
 - check stack overflow dynamically.

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11271021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=v8:1490

Review URL: https://codereview.chromium.org/11271020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12813 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11275037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11271019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12811 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/11238064
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12810 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11269035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11265011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12808 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11274008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change fixed link errors in building shared library
for android. crtbegin_so.o is added to resolve dso_handle
and exclude-libs option is removed for shared library.

Review URL: https://chromiumcodereview.appspot.com/11262003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12806 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11267006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12805 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

`timezone` variable contains the difference, in seconds, between UTC and
local standard time (see `man 3 localtime` on Solaris).

Call to `tzset` is required to apply contents of `TZ` variable to
`timezone` variable.

BUG=v8:2064

Review URL: https://chromiumcodereview.appspot.com/10967066
Patch from Maciej Małecki <me@mmalecki.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11238060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12800 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11232058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12799 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11234031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12798 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/11189136

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12797 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This enables code flushing even with incremental marking enabled and
fully shares the function link field in JSFunctions between candidates
for code flushing and the optimized functions list. If a candidate for
code flushing gets optimized, it will be evicted from the candidates
list.

R=ulan@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11140025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12796 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11238031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12795 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11227034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The patch introduces CommittedPhysicalMemory function to
the Heap class that reports committed *physical* memory acquired
for the heap from the OS.
It is important because some OSes may defer actual committment on e.g.
first access to the region.
So reporting just plain committed size led to various weird artifacts
like showing V8 allocated memory higher than the whole process
private size.

BUG=v8:2191

Review URL: https://codereview.chromium.org/11066118
Patch from Alexei Filippov <alph@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12793 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes the following Clang warnings:

../../v8/src/ia32/assembler-ia32.cc:1504:24: warning: comparison of constant 16 with expression of type 'v8::internal::Condition' is always true [-Wtautological-constant-out-of-range-compare]
  ASSERT(0 <= cc && cc < 16);
  ~~~~~~~~~~~~~~~~~~~~~^~~~~

../../v8/src/ia32/assembler-ia32.cc:1536:27: warning: comparison of constant 16 with expression of type 'v8::internal::Condition' is always true [-Wtautological-constant-out-of-range-compare]
  ASSERT((0 <= cc) && (cc < 16));
  ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~

BUG=crbug.com/151927

Review URL: https://chromiumcodereview.appspot.com/11225030
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12792 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The previously-used instruction isn't guaranteed to always be undefined,
and the encoding used was conditional (failing the condition on an
undefined instruction is itself undefined and not guaranteed to
fault!). I would have like to use a more clever encoding (see bug 2963),
but we need the extra bits to encode the size of the constant pool.

BUG=security
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11242002
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://chromiumcodereview.appspot.com/11189112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/11230029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12789 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11189113

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=chromium:157124
TEST=cctest/test-api/Regress157124

Review URL: https://codereview.chromium.org/11233033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12785 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r12755 (5d62d66e)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/11232036
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11225026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11228004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12782 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11235026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org
BUG=155270

Review URL: https://chromiumcodereview.appspot.com/11189091

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11237002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12779 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11189089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It's measured faster when:
a) clamp never happens;
b) clamp random happens ([-128,384], pseudo random).

Review URL: https://chromiumcodereview.appspot.com/11190049
Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11193022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12776 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11232002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00