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  1. 25 Jul, 2018 6 commits
  3. 24 Jul, 2018 7 commits
  5. 23 Jul, 2018 1 commit
  7. 20 Jul, 2018 4 commits
    • Sigurd Schneider's avatar
      Speculatively revert "[turboassembler] Introduce hard-abort mode" · 039c18e1
      Sigurd Schneider authored 
      This reverts commit a462a785.

Reason for revert: Breaks a TurboAssembler test:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Arm/7726

Original change's description:
> [turboassembler] Introduce hard-abort mode
> 
> For checks and assertions (mostly for debug code, like stack alignment
> or zero extension), we had two modes: Emit a call to the {Abort}
> runtime function (the default), and emit a debug break (used for
> testing, enabled via --trap-on-abort).
> In wasm, where we cannot just call a runtime function because code must
> be isolate independent, we always used the trap-on-abort behaviour.
> This causes problems for our fuzzers, which do not catch SIGTRAP, and
> hence do not detect debug code failures.
> 
> This CL introduces a third mode ("hard abort"), which calls a C
> function via {ExternalReference}. The C function still outputs the
> abort reason, but does not print the stack trace. It then aborts via
> "OS::Abort", just like the runtime function.
> This will allow fuzzers to detect the crash and even find a nice error
> message.
> 
> Even though this looks like a lot of code churn, it is actually not.
> Most added lines are new tests, and other changes are minimal.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: chromium:863799
> Change-Id: I77c58ff72db552d49014614436259ccfb49ba87b
> Reviewed-on: https://chromium-review.googlesource.com/1142163
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54592}

TBR=mstarzinger@chromium.org,clemensh@chromium.org

Change-Id: I60c011cfe262ccebbb9abf32699a9fe17e72a3c8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:863799
Reviewed-on: https://chromium-review.googlesource.com/1145431
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: 's avatarSigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54597}
      039c18e1
    • Clemens Hammacher's avatar
      [turboassembler] Introduce hard-abort mode · a462a785
      Clemens Hammacher authored 
      For checks and assertions (mostly for debug code, like stack alignment
or zero extension), we had two modes: Emit a call to the {Abort}
runtime function (the default), and emit a debug break (used for
testing, enabled via --trap-on-abort).
In wasm, where we cannot just call a runtime function because code must
be isolate independent, we always used the trap-on-abort behaviour.
This causes problems for our fuzzers, which do not catch SIGTRAP, and
hence do not detect debug code failures.

This CL introduces a third mode ("hard abort"), which calls a C
function via {ExternalReference}. The C function still outputs the
abort reason, but does not print the stack trace. It then aborts via
"OS::Abort", just like the runtime function.
This will allow fuzzers to detect the crash and even find a nice error
message.

Even though this looks like a lot of code churn, it is actually not.
Most added lines are new tests, and other changes are minimal.

R=mstarzinger@chromium.org

Bug: chromium:863799
Change-Id: I77c58ff72db552d49014614436259ccfb49ba87b
Reviewed-on: https://chromium-review.googlesource.com/1142163
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54592}
      a462a785
    • Clemens Hammacher's avatar
      [iwyu] Add script to check that headers can be included in isolation · 4b412577
      Clemens Hammacher authored 
      The most important point of IWYU (include-what-you-use) is that each
header includes everything it is using, so that whoever includes that
header does not need to additionally include other things.
This CL adds a script which generates files to automatically check this.
It is automatically invoked during "gclient runhooks" if the
"check_v8_header_includes" variable is set. This script generates a
number of .cc files in the "check-header-includes" directory, together
with a "sources.gni" file which lists all the generated cc files. Each
file includes one header.
If additionally the gn args "v8_check_header_includes" is set, this gni
file is included, and all the generated CC files will be compiled. This
will detect violations of the aforementioned IWYU rule.

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

Bug: v8:7754, v8:7965
Change-Id: Id1cf256507052c3a9ea82f8c80ea1c0385457e31
Reviewed-on: https://chromium-review.googlesource.com/1145199
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: 's avatarBen Titzer <titzer@chromium.org>
Reviewed-by: 's avatarMichael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54590}
      4b412577
    • Yang Guo's avatar
      [tools] opt out of metrics when fetching deps for node · 2ebce7a8
      Yang Guo authored 
      R=machenbach@chromium.org

Change-Id: Ia50f6e637aec58e9c1bdd726c84b296fd71d7cbb
Reviewed-on: https://chromium-review.googlesource.com/1142767Reviewed-by: 's avatarMichael Achenbach <machenbach@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54571}
      2ebce7a8
  9. 19 Jul, 2018 3 commits
  11. 18 Jul, 2018 3 commits
  13. 17 Jul, 2018 1 commit
  15. 16 Jul, 2018 3 commits
  17. 13 Jul, 2018 2 commits
  19. 12 Jul, 2018 1 commit
  21. 11 Jul, 2018 3 commits
  23. 10 Jul, 2018 3 commits
  25. 09 Jul, 2018 3 commits
    • Sigurd Schneider's avatar
      [tools] Add an averaging script · 95ab7579
      Sigurd Schneider authored 
      This script averages numbers output from another script. It is useful
to average over a benchmark that outputs one or more results of the form
  <key> <number> <unit>
key and unit are optional.

For example, if
  $ bch --allow-natives-syntax toNumber.js
outputs
  Number('undefined'):  155763 Kps
  (+'undefined'):  193050 Kps
  parseFloat('undefined'):  23736 Kps
then
  $ avg.py 10 bch --allow-natives-syntax toNumber.js
will output
  [10/10] (+'undefined')         : avg 192,240.40 stddev   6,486.24 (185,529.00 - 206,186.00) Kps
  [10/10] Number('undefined')    : avg 156,990.10 stddev  16,327.56 (144,718.00 - 202,840.00) Kps
  [10/10] parseFloat('undefined'): avg  22,885.80 stddev   1,941.80 ( 17,584.00 -  24,266.00) Kps

Change-Id: I237706da8ade1b152e04084e0189007460d359c5
Reviewed-on: https://chromium-review.googlesource.com/1128747
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54330}
      95ab7579
    • Clemens Hammacher's avatar
      Fix and extend lldbinit · 5b744bfb
      Clemens Hammacher authored 
      1) Define all commands in one file.
2) Add logic to make 'jco' print current pc by default.
3) Add a comment to explain how to load the lldb_commands.py file.
4) Minor refactorings.

R=ahaas@chromium.org
No-Try: true

Bug: v8:7754
Change-Id: I553f2ce4cefedad05466c692a8665a570372b76a
Reviewed-on: https://chromium-review.googlesource.com/1127892Reviewed-by: 's avatarAndreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54329}
      5b744bfb
    • Leszek Swirski's avatar
      [sfi] Replace start/end position with UncompiledData · 39e2d97b
      Leszek Swirski authored 
      Add new types for function data for SharedFunctionInfo, for uncompiled
functions. UncompiledData holds start/end positions, allowing us to
remove these fields from SFI. Uncompiled functions with pre-parsed
scope data now hold an UncompiledDataWithScope that has a pointer to
PreParsedScopeData -- this allows us to also remove the start/end pos
from PreParsedScopeData.

Bug: chromium:818642
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I56f3c4e62cbf38929babac734a332709f12a8202
Reviewed-on: https://chromium-review.googlesource.com/1126381
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: 's avatarJaroslav Sevcik <jarin@chromium.org>
Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
Reviewed-by: 's avatarMarja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54319}
      39e2d97b