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  1. 18 Jul, 2016 3 commits
  3. 14 Jul, 2016 5 commits
  5. 11 Jul, 2016 2 commits
  7. 08 Jul, 2016 1 commit
  9. 07 Jul, 2016 1 commit
  11. 06 Jul, 2016 2 commits
  13. 01 Jul, 2016 1 commit
    • littledan's avatar
      Implement immutable prototype chains · 0ff7b483
      littledan authored 
      This patch implements "immutable prototype exotic objects" from the ECMAScript
spec, which are objects whose __proto__ cannot be changed, but are not otherwise
frozen. They are introduced in order to prevent a Proxy from being introduced
to the prototype chain of the global object.

The API is extended by a SetImmutablePrototype() call in ObjectTemplate, which
can be used to vend new immutable prototype objects. Additionally, Object.prototype
is an immutable prototype object.

In the implementation, a new bit is added to Maps to say whether the prototype is
immutable, which is read by SetPrototype. Map transitions to the immutable prototype
state are not saved in the transition tree because the main use case is just for
the prototype chain of the global object, which there will be only one of per
Context, so no need to take up the extra word for a pointer in each full transition
tree.

BUG=v8:5149

Review-Url: https://codereview.chromium.org/2108203002
Cr-Commit-Position: refs/heads/master@{#37482}
      0ff7b483
  15. 30 Jun, 2016 1 commit
  17. 29 Jun, 2016 1 commit
  19. 28 Jun, 2016 2 commits
  21. 27 Jun, 2016 1 commit
  23. 24 Jun, 2016 1 commit
    • bakkot's avatar
      add use counters for __defineGetter__ failing · b2ce1fa2
      bakkot authored 
      We deviate from spec in that, in our implementation, __defineGetter__ on non-
configurable properties returns false instead of throwing a TypeError. This commit
adds a use counter to track how often we would be throwing an error we currently
avoid, to determine if we can change to align with spec or if the spec is not
implementable.

BUG=v8:5070

Review-Url: https://codereview.chromium.org/2089533002
Cr-Commit-Position: refs/heads/master@{#37259}
      b2ce1fa2
  25. 22 Jun, 2016 2 commits
  27. 21 Jun, 2016 2 commits
  29. 20 Jun, 2016 1 commit
  31. 17 Jun, 2016 1 commit
  33. 15 Jun, 2016 1 commit
  35. 13 Jun, 2016 2 commits
  37. 10 Jun, 2016 1 commit
  39. 09 Jun, 2016 1 commit
  41. 08 Jun, 2016 6 commits
  43. 07 Jun, 2016 1 commit
    • mlippautz's avatar
      Track based on JSArrayBuffer addresses on pages instead of the attached · 839f3fd4
      mlippautz authored 
      backing store.

Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
  are processed by the sweeper concurrently.

BUG=chromium:611688
LOG=N
TEST=cctest/test-array-buffer-tracker/*
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel

Review-Url: https://codereview.chromium.org/2036643002
Cr-Commit-Position: refs/heads/master@{#36798}
      839f3fd4
  45. 06 Jun, 2016 1 commit
    • hlopko's avatar
      Introduce api for incremental wrapper tracing · 0f934866
      hlopko authored 
      This cl sketches an api for incremental wrapper tracing, but still uses the api
in the stop-the-world fashion. Responsibility to maintain a marking deque is
transfered to the embedder. V8 will still collect wrapper internal fields, but
will send them to the embedder after each incremental gc task. Wrappers must be
sent at latest by the time next oilpan gc runs - so blink can keep all
discovered wrappables alive.

The old api will be cleared after this cl and corresponding blink cl land.

Comments are very welcomed :)

LOG=no
BUG=468240

Review-Url: https://codereview.chromium.org/2032213003
Cr-Commit-Position: refs/heads/master@{#36761}
      0f934866