Distinguish between tagged and machine pointer sizes in grokdump, and
dump a tagged memory view in addition to the machine-word dump when they
don't match.
This tagged view tries to decompress pointers for link targets, by
masking the slot they're in to get the cage root.
Drive-by: Add a .style.yapf to opt in to python formatting using
git cl format.
Change-Id: Ic5272cd865f995fc670ab2fb7d5e464f317af1bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3439906
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78948}
Reasons:
* We disabled it more than a year ago for all configs
* Not easy to re-enable
* Not compatible with pointer compression as-is
* Not compatible with concurrent TP/TF as-is
* No concrete plans to re-enable it
Also remove Map's layout_descriptor since it was only used for double
field unboxing.
Bug: v8:11422
Change-Id: I9260906eac199213b3210712e9903f1ecf1d7979
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2676637
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72671}
mmap behaves differently on Windows. This change adjust how grokdump.py
uses it so that the script will run on Windows.
The disassembly doesn't work due to lack of /usr/bin/objdump - fixing
that is out of scope for this change. The output is still useful even
without the disassembly.
Change-Id: I0db2d09e3ed10f0ca666cbbd438fbd82565906d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866958
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64376}
Breakpad used to put a custom identifier 0x8003 into minidumps to
indicate arm64 architecture. Crashpad now uses the new standardized
value 12. This CL updates grokdump.py to understand both.
Change-Id: Ie9bf5106beba8059e89a48d42d32ac8069493925
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648258
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62047}
There are now less that 400 days until the end of life
of Python 2(aka _legacy_ Python) https://pythonclock.org/ .
The code compatibility check for python2 and python3
used the following tools: futurize, flake8
You can see the reports here: https://travis-ci.com/bmsdave/v8/builds
This CL was uploaded by git cl split.
Bug: v8:8594
Change-Id: I661c52a70527e8ddde841fee6d4dcba282b4a938
Reviewed-on: https://chromium-review.googlesource.com/c/1470123
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59675}
"short" external strings are not short, they mean that the external data
pointer is not cached. Rename the various classes and objects to align
with the actual meaning.
Bug: chromium:877044
Change-Id: Ie3d5baa9ad352ac6ca89f5ba1d066760825e4beb
Reviewed-on: https://chromium-review.googlesource.com/1185192
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Benoit L <lizeb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55432}
* Rename BoilerplateDescription to ObjectBoilerplateDescription
* Add literal_type flag to ObjectBoilerplateDescription,
which is stored as zeroth element of Fixed array
* Create ArrayBoilerplateDescription with elements_kind and
constant_elements field
* Replace CompileTimeValue and ConstantElementPair with
ArrayBoilerplateDescription
* Kill ConstantElementPair and CompileTimeValue
Change-Id: Icb42dcfd575a27e2b64ffd5e2e61f9d703d5e986
Bug: v8:7787, chromium:818642
Reviewed-on: https://chromium-review.googlesource.com/1122411
Commit-Queue: Chandan Reddy <chandanreddy@google.com>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54272}
Minidumps could potentially contain sensitive information, so we
shouldn't be serving them to the world.
R=machenbach@chromium.org
Change-Id: Idb7a3c07c160e82d707a4abb857e098363da3345
Reviewed-on: https://chromium-review.googlesource.com/1015802
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52670}
Fixes instruction names to be all in one <td>, rather than being
split between two due to miscalculation of op_offset.
Change-Id: Ieef5d20c238c8e0a5b2316239324d375090006a1
Reviewed-on: https://chromium-review.googlesource.com/777761
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49463}
The help output prints the first line of the doc string.
Change-Id: I76817d5138b7bb7ba8034c6a5d803b5aaf1201f7
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/654603
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47871}
This is so that we can distinguish hash tables by instance type. We can
then introduce maps for each kind of hash tables to further distinguish.
R=mstarzinger@chromium.org
Bug: v8:6593
Change-Id: Ice9e6bb7b85d825207ac489b6930ac9020d60db8
Reviewed-on: https://chromium-review.googlesource.com/582814
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46861}
This reverts commit 990dd947bc.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Introduce HASH_TABLE_TYPE instance type.
>
> This is so that we can distinguish hash tables by instance type. We can
> then introduce maps for each kind of hash tables to further distinguish.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:6593
> Change-Id: I1a532884758e571abdfe2e2743fc5ea611d12f7e
> Reviewed-on: https://chromium-review.googlesource.com/581009
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46828}
TBR=yangguo@chromium.org,mstarzinger@chromium.org
Change-Id: Ia47d408e5cf47983940227b4cc445a704d7f8d19
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6593
Reviewed-on: https://chromium-review.googlesource.com/581493
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46833}
This is so that we can distinguish hash tables by instance type. We can
then introduce maps for each kind of hash tables to further distinguish.
R=mstarzinger@chromium.org
Bug: v8:6593
Change-Id: I1a532884758e571abdfe2e2743fc5ea611d12f7e
Reviewed-on: https://chromium-review.googlesource.com/581009
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46828}
- Add long command names for better first-time experience
- Try to auto-detect the context object on the stack
- Mark free space object ranges
- Add print/p command to evaluate arbitrary python code
- Address expressions can now be arbitrary Python expression with auto
register substition
- New dso command finds possible HeapObjects on the stack/memory
- New dsa command prints PushStackTraceAndDie message and values
Change-Id: I0f178077f0ccef887aa3fdd2d2d2d732925948ea
NOTRY=true
Change-Id: I0f178077f0ccef887aa3fdd2d2d2d732925948ea
Reviewed-on: https://chromium-review.googlesource.com/468866
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44430}
This CL adds support to parse a PushStackTraceAndDie dump on a windows
minidump:
Stack Message:
magic1: 00000000bbbbbbbb
magic2: 00000000bbbbbbbb
ptr1: 00000015f9ca78d1 T
ptr2: 0000000000000000
message start: 00000000002c58f0 S
stack_start: 00000000002cd8f0 S
All addresses within the message are annotated with the address marker to
make it easier to spot objects that are contained in the minidump.
Currently this doesn't work on OSX yet as we do not correctly push the two
magic markers on the stack.
Change-Id: I8385bb66a76bd253c4014bc7e25971d03830dd4d
Reviewed-on: https://chromium-review.googlesource.com/466007
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44339}
- Add new address markers:
T: tagged pointer in the minidump
C: address into a module in the minidump
S: pointer into the exception stack in the minidump
*: other address in the minidump
- Show ASCII decoding of address in dd
- Display potential frame markers on the exception stack:
00000032212fdae8: 0000000300000000 ........ Smi(3) EXIT frame marker
- Display relative addresses, useful to detect stack frames:
00000032212fdb68: 00000032212fdb98 S ........ [+6]=00000032212fdcb0 S
00000032212fdb70: 0000010ff5ca0a84 ........
00000032212fdb78: 000001064c1fa881 ........
00000032212fdb80: 0000016a8e52fcb1 ........
00000032212fdb88: 0000010ff5ca0981 ........
00000032212fdb90: 0000000d00000000 ........ Smi(13) INTERNAL frame marker
00000032212fdb98: 00000032212fdcb0 S ........ [+35]=00000032212fdd61 S
Change-Id: I56bd7e6723a34bcb668719246dd5ff2898224928
Reviewed-on: https://chromium-review.googlesource.com/461862
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44269}
- support register expression for addresses, e.g.: $r15-1
- show whether addresses are in the minidump with "*"
- show decoded Smis with dd
- dd without arguments continues printing the next words
Change-Id: I1a6a4f9f470c25eee7da1381014252e723ef5f7c
Reviewed-on: https://chromium-review.googlesource.com/461900
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44192}
Minidumps have gotten bigger stack ranges leading to long load times when using
grokdump's web interface. A major factor seems to be the output size of the
generated table. Using shorter class names and avoiding quotes for most
attributes we can get a significant size reduction.
BUG=
Review-Url: https://codereview.chromium.org/2352303002
Cr-Commit-Position: refs/heads/master@{#39589}
Constants are taken from chromium/src/google_breakpad/common/minidump_cpu_arm64.h
BUG=
Review URL: https://codereview.chromium.org/1149293005
Cr-Commit-Position: refs/heads/master@{#28785}
This is a prototype to start discussion about useful features for
a better/friendlier minidump analysis tool.
The change adds an -w option to grokdump.py. With the option on,
grokdump will launch a web server and web browser for browsing the
minidump. It also supports adding persistent comments and listing +
browsing other minidumps (in the same directory) without the need to
restart the web server.
R=jkummerow@chromium.org
BUG=
Review URL: https://codereview.chromium.org/194573005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20281 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
