Commit Graph

21 Commits

Author SHA1 Message Date
Seth Brenith
af76dd6e7e [tools] Add v8windbg, a WinDbg extension for V8
Please take a look at tools/v8windbg/README.md for an overview of what
v8windbg can do and how it's structured. This platform-specific
debugging plugin makes use of the data provided by the V8 postmortem
debugging API in tools/debug_helper.

Note: This code began as https://github.com/billti/v8dbg and then moved
into the Edge repository, where I added features gradually and got code
reviews for individual changes. Now, taken in its entirety, it's an
obnoxiously large CL. I'm open to breaking it up into a few chunks if
that would be preferable.

Bug: v8:9376
Change-Id: I3e503de00bb1aea870ae83e9bd99e4e2eab9ef98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2031700
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#66319}
2020-02-18 19:16:18 +00:00
Seth Brenith
0921e8f28b Reland "Add postmortem debugging helper library"
This is a reland of 517ab73fd7

Updates since original: now compressed pointers passed to the function
GetObjectProperties are required to be sign-extended. Previously, the
function allowed zero-extended values, but that led to ambiguity on
pointers like 0x88044919: is it compressed or is the heap range actually
centered on 0x100000000?

Original change's description:
> Add postmortem debugging helper library
>
> This change begins to implement the functionality described in
> https://docs.google.com/document/d/1evHnb1uLlSbvHAAsmOXyc25x3uh1DjgNa8u1RHvwVhk/edit#
> for investigating V8 state in crash dumps.
>
> This change adds a new library, v8_debug_helper, for providing platform-
> agnostic assistance with postmortem debugging. This library can be used
> by extensions built for debuggers such as WinDbg or lldb. Its public API
> is described by debug-helper.h; currently the only method it exposes is
> GetObjectProperties, but we'd like to add more functionality over time.
> The API surface is restricted to plain C-style structs and pointers, so
> that it's easy to link from a debugger extension built with a different
> toolchain.
>
> This change also adds a new cctest file to exercise some basic
> interaction with the new library.
>
> The API function GetObjectProperties takes an object pointer (which
> could be compressed, or weak, or a SMI), and returns a string
> description of the object and a list of properties the object contains.
> For now, the list of properties is entirely based on Torque object
> definitions, but we expect to add custom properties in future updates so
> that it can be easier to make sense of complex data structures such as
> dictionaries.
>
> GetObjectProperties does several things that are intended to generate
> somewhat useful results even in cases where memory may be corrupt or
> unavailable:
> - The caller may optionally provide a type string which will be used if
>   the memory for the object's Map is inaccessible.
> - All object pointers are compared against the list of known objects
>   generated by mkgrokdump. The caller may optionally provide the
>   pointers for the first pages of various heap spaces, to avoid spurious
>   matches. If those pointers are not provided, then any matches are
>   prefixed with "maybe" in the resulting description string, such as
>   "maybe UndefinedValue (0x4288000341 <Oddball>)".
>
> Bug: v8:9376
>
> Change-Id: Iebf3cc2dea3133c7811bcefcdf38d9458b02fded
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628012
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62882}

Bug: v8:9376
Change-Id: I866a1cc9d4c34bfe10c7b98462451fe69763cf3f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1717090
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#63008}
2019-07-31 14:30:19 +00:00
Zhi An Ng
6747e3a186 Revert "Add postmortem debugging helper library"
This reverts commit 517ab73fd7.

Reason for revert: Test failures https://bugs.chromium.org/p/v8/issues/detail?id=9538

Original change's description:
> Add postmortem debugging helper library
> 
> This change begins to implement the functionality described in
> https://docs.google.com/document/d/1evHnb1uLlSbvHAAsmOXyc25x3uh1DjgNa8u1RHvwVhk/edit#
> for investigating V8 state in crash dumps.
> 
> This change adds a new library, v8_debug_helper, for providing platform-
> agnostic assistance with postmortem debugging. This library can be used
> by extensions built for debuggers such as WinDbg or lldb. Its public API
> is described by debug-helper.h; currently the only method it exposes is
> GetObjectProperties, but we'd like to add more functionality over time.
> The API surface is restricted to plain C-style structs and pointers, so
> that it's easy to link from a debugger extension built with a different
> toolchain.
> 
> This change also adds a new cctest file to exercise some basic
> interaction with the new library.
> 
> The API function GetObjectProperties takes an object pointer (which
> could be compressed, or weak, or a SMI), and returns a string
> description of the object and a list of properties the object contains.
> For now, the list of properties is entirely based on Torque object
> definitions, but we expect to add custom properties in future updates so
> that it can be easier to make sense of complex data structures such as
> dictionaries.
> 
> GetObjectProperties does several things that are intended to generate
> somewhat useful results even in cases where memory may be corrupt or
> unavailable:
> - The caller may optionally provide a type string which will be used if
>   the memory for the object's Map is inaccessible.
> - All object pointers are compared against the list of known objects
>   generated by mkgrokdump. The caller may optionally provide the
>   pointers for the first pages of various heap spaces, to avoid spurious
>   matches. If those pointers are not provided, then any matches are
>   prefixed with "maybe" in the resulting description string, such as
>   "maybe UndefinedValue (0x4288000341 <Oddball>)".
> 
> Bug: v8:9376
> 
> Change-Id: Iebf3cc2dea3133c7811bcefcdf38d9458b02fded
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628012
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62882}

TBR=yangguo@chromium.org,mvstanton@chromium.org,jgruber@chromium.org,tebbi@chromium.org,seth.brenith@microsoft.com

Change-Id: Ia078f2e8d101d2375b5db88021b2d65d28f1b075
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9376
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1716033
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62899}
2019-07-24 16:31:54 +00:00
Seth Brenith
517ab73fd7 Add postmortem debugging helper library
This change begins to implement the functionality described in
https://docs.google.com/document/d/1evHnb1uLlSbvHAAsmOXyc25x3uh1DjgNa8u1RHvwVhk/edit#
for investigating V8 state in crash dumps.

This change adds a new library, v8_debug_helper, for providing platform-
agnostic assistance with postmortem debugging. This library can be used
by extensions built for debuggers such as WinDbg or lldb. Its public API
is described by debug-helper.h; currently the only method it exposes is
GetObjectProperties, but we'd like to add more functionality over time.
The API surface is restricted to plain C-style structs and pointers, so
that it's easy to link from a debugger extension built with a different
toolchain.

This change also adds a new cctest file to exercise some basic
interaction with the new library.

The API function GetObjectProperties takes an object pointer (which
could be compressed, or weak, or a SMI), and returns a string
description of the object and a list of properties the object contains.
For now, the list of properties is entirely based on Torque object
definitions, but we expect to add custom properties in future updates so
that it can be easier to make sense of complex data structures such as
dictionaries.

GetObjectProperties does several things that are intended to generate
somewhat useful results even in cases where memory may be corrupt or
unavailable:
- The caller may optionally provide a type string which will be used if
  the memory for the object's Map is inaccessible.
- All object pointers are compared against the list of known objects
  generated by mkgrokdump. The caller may optionally provide the
  pointers for the first pages of various heap spaces, to avoid spurious
  matches. If those pointers are not provided, then any matches are
  prefixed with "maybe" in the resulting description string, such as
  "maybe UndefinedValue (0x4288000341 <Oddball>)".

Bug: v8:9376

Change-Id: Iebf3cc2dea3133c7811bcefcdf38d9458b02fded
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628012
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62882}
2019-07-23 20:02:16 +00:00
Sergiy Belozorov
80451b07bc [tools] Implement confidence-based number of runs
R=machenbach@chromium.org, tmrts@chromium.org

Bug: chromium:880724
Change-Id: I2b8ede244fa09868eef384b967223a3788ddd2a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1581180
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61370}
2019-05-09 09:42:28 +00:00
Michael Achenbach
5553ab52b9 [test] Fix predictable builder after swarming switch
NOTRY=true
TBR=sergiyb@chromium.org

Bug: chromium:830557
Change-Id: Ie9022b04cb5858654c6903f38031c860e8681b9e
Reviewed-on: https://chromium-review.googlesource.com/c/1296478
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56899}
2018-10-23 13:24:53 +00:00
Lei Zhang
32af1d0ebb Use absolute paths in Android section in tools/BUILD.gn.
In the logic to run tests on Android, the path is currently relative.
This only works when V8 is standalone. When V8 is checkout in another
project, the path is wrong. The build_with_chromium check only helps
with Chromium, but there are other V8 embedders.

Change-Id: I52640a664deb39e5959ed3cc9dc79fd7b6d68758
Reviewed-on: https://chromium-review.googlesource.com/1189096
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55439}
2018-08-28 08:23:38 +00:00
Michael Achenbach
b2537f219d Reland "[test] Add logic to run tests on Android"
This is a reland of 4c0943424c

Original change's description:
> [test] Add logic to run tests on Android
> 
> This adds a new command abstraction for running commands on Android
> using dockered devices on swarming.
> 
> The new abstraction handles pushing all required files to the device.
> The logic used for pushing and running is reused from the perf runner.
> 
> This adds only the mjsunit test suite. Others will be handled in
> follow up CLs. The suite logic is enhanced with auto-detection of files
> to be pushed to devices, for e.g. load or import statements.
> 
> Some test cases need an extra resource section for specifying required
> files.
> 
> Remaining failing tests are marked in the status files for later
> triage.
> 
> Bug: chromium:866862
> Change-Id: I2b957559f07fdcd8c1bd2f7034f5ba7754a31fb7
> Reviewed-on: https://chromium-review.googlesource.com/1150153
> Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55041}

Bug: chromium:866862
Change-Id: Icf7e04c75d4abeab7254d10ba21240e46b0022ae
Reviewed-on: https://chromium-review.googlesource.com/1170643
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55059}
2018-08-10 17:56:12 +00:00
Sergiy Byelozyorov
2071051e4b Revert "[test] Add logic to run tests on Android"
This reverts commit 4c0943424c.

Reason for revert: Unfortunately this broke all perf builders.

Original change's description:
> [test] Add logic to run tests on Android
> 
> This adds a new command abstraction for running commands on Android
> using dockered devices on swarming.
> 
> The new abstraction handles pushing all required files to the device.
> The logic used for pushing and running is reused from the perf runner.
> 
> This adds only the mjsunit test suite. Others will be handled in
> follow up CLs. The suite logic is enhanced with auto-detection of files
> to be pushed to devices, for e.g. load or import statements.
> 
> Some test cases need an extra resource section for specifying required
> files.
> 
> Remaining failing tests are marked in the status files for later
> triage.
> 
> Bug: chromium:866862
> Change-Id: I2b957559f07fdcd8c1bd2f7034f5ba7754a31fb7
> Reviewed-on: https://chromium-review.googlesource.com/1150153
> Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55041}

TBR=machenbach@chromium.org,yangguo@chromium.org,sergiyb@chromium.org

Change-Id: If80129810586b709dab762c9b5724888e15daec2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:866862
Reviewed-on: https://chromium-review.googlesource.com/1170962
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55058}
2018-08-10 16:16:16 +00:00
Michael Achenbach
4c0943424c [test] Add logic to run tests on Android
This adds a new command abstraction for running commands on Android
using dockered devices on swarming.

The new abstraction handles pushing all required files to the device.
The logic used for pushing and running is reused from the perf runner.

This adds only the mjsunit test suite. Others will be handled in
follow up CLs. The suite logic is enhanced with auto-detection of files
to be pushed to devices, for e.g. load or import statements.

Some test cases need an extra resource section for specifying required
files.

Remaining failing tests are marked in the status files for later
triage.

Bug: chromium:866862
Change-Id: I2b957559f07fdcd8c1bd2f7034f5ba7754a31fb7
Reviewed-on: https://chromium-review.googlesource.com/1150153
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55041}
2018-08-10 10:11:53 +00:00
Michael Achenbach
b27ee43a0f Reland "[build] Remove legacy isolate configurations"
This is a reland of 712b66da81

Breakage is fixed on infra side by:
https://crrev.com/c/983417

Original change's description:
> [build] Remove legacy isolate configurations
>
> Bug: chromium:669910
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Iad58563fd4bb35501493f88af83362b1206a186c
> Reviewed-on: https://chromium-review.googlesource.com/982630
> Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52267}

Bug: chromium:669910
Change-Id: I6c06a1fe9587206aa4e983befb105327bfec4154
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/983573
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52273}
2018-03-28 12:36:55 +00:00
Michael Achenbach
77a71f85c1 Revert "[build] Remove legacy isolate configurations"
This reverts commit 712b66da81.

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20builder/builds/32049

Original change's description:
> [build] Remove legacy isolate configurations
> 
> Bug: chromium:669910
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Iad58563fd4bb35501493f88af83362b1206a186c
> Reviewed-on: https://chromium-review.googlesource.com/982630
> Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52267}

TBR=machenbach@chromium.org,yangguo@chromium.org,sergiyb@chromium.org,jgruber@chromium.org

Change-Id: I1955325b0b419b38d793ab205131de8de08cb50a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:669910
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/983418
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52268}
2018-03-28 10:57:28 +00:00
Michael Achenbach
712b66da81 [build] Remove legacy isolate configurations
Bug: chromium:669910
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Iad58563fd4bb35501493f88af83362b1206a186c
Reviewed-on: https://chromium-review.googlesource.com/982630
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52267}
2018-03-28 10:35:05 +00:00
Michael Achenbach
a39f4452a4 [build] Add testrunner data deps
Bug: chromium:669910
Change-Id: I35d146bbe265dfdd0059dd8d3ec4fc5ee54bb465
Reviewed-on: https://chromium-review.googlesource.com/979805
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52219}
2018-03-26 12:17:08 +00:00
Michael Achenbach
3dfa955a9b [build] Add data deps for tools
Bug: chromium:669910
Change-Id: I03f6ef3121af047ea2c4e6b83ed67634f046ce71
Reviewed-on: https://chromium-review.googlesource.com/979796
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52212}
2018-03-26 10:31:58 +00:00
Michael Achenbach
d65b53cf23 [test] Add benchmarks to deopt-fuzzer and remove obsolete configs
This adds the benchmarks suite to the deopt fuzzer and removes the
obsolete deopt configs, which since a while are part of the num-fuzz
configs.

TBR=sergiyb@chromium.org

Bug: v8:6900
Change-Id: I9202e2a66a132eca5940b4444fda97816b034e54
Reviewed-on: https://chromium-review.googlesource.com/876085
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50720}
2018-01-19 13:47:06 +00:00
Michal Majewski
4ac4e3581f [test] Run gc fuzzer on benchmarks test suite
Bug: v8:6917
Change-Id: I0ee15a41b6028bdbf8448f066b0bc47a049ca587
Reviewed-on: https://chromium-review.googlesource.com/868154
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#50647}
2018-01-17 09:59:15 +00:00
Michael Achenbach
0dd835d571 [build] Add generic num fuzzer isolates
We'll use one generic isolate for all number fuzzers. The previous
deopt isolate will be deleted, once the infra hooks have changed.

Bug: v8:6917
Change-Id: I809613548cd935a0208febb002572cc063697324
Reviewed-on: https://chromium-review.googlesource.com/763534
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49297}
2017-11-10 14:26:48 +00:00
Michael Achenbach
dde4cbb0b1 [test] Remove valgrind support
Bug: v8:6566
Change-Id: If48fea99f2b1c8069dd20075bf4d9a6c6282bb7c
Reviewed-on: https://chromium-review.googlesource.com/708757
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48439}
2017-10-11 07:41:33 +00:00
machenbach
2ecd866d9b [gn] Fix gn targets for tools
This switches a few underscores to dashes to match the infra-
side definitions.

BUG=chromium:474921
TBR=vogelheim@chromium.org, jochen@chromium.org
NOTRY=true

Review-Url: https://codereview.chromium.org/2045543002
Cr-Commit-Position: refs/heads/master@{#36753}
2016-06-06 14:25:30 +00:00
machenbach
976a62acd1 [gn] Add swarming support for all test targets
This adds corresponding *_run targets for all swarming
isolate actions existing in gyp. This also wires all
targets together under gn_all.

BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2033813004
Cr-Commit-Position: refs/heads/master@{#36714}
2016-06-03 13:48:44 +00:00