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Andreas Haas fbcdb28178 [wasm] Lazy compilation after deserialization 
The serialization format contains one boolean flag per function which
specifies whether the function code exists in the serialized module or
not. With this CL, this boolean flag is extended to a three-value flag
which indicates whether the function exists, and if not, whether the
function was executed before serialization. This information can then be
used upon deserialization to compile only those functions that were
executed before serialization.

Design doc: https://docs.google.com/document/d/1U3uqq4njqLqFhr1G2sU_bmpQxY-3bvfG55udSb-DvA4/edit?usp=sharing

Bug: v8:12281
Change-Id: I465e31e5422fa45163256be0e6594045865f0174
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3364089
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78545}
2022-01-10 16:35:48 +00:00
..
bazel [bazel] Add optional deps for prebuilt bazel for bots 2021-06-22 08:42:15 +00:00
cfi [cfi] Use inclusive terminology 2020-07-28 05:57:41 +00:00
clusterfuzz [foozzie] Ensure sparkplug is off for baseline comparison 2021-11-12 10:54:05 +00:00
cppgc Reland "Reland "Reland "cppgc: Enable checks for assignments in prefinalizers""" 2021-09-29 16:02:17 +00:00
debug_helper V8 Sandbox rebranding 2021-12-15 17:09:36 +00:00
dev Fix update-compile-commands.py 2021-11-02 14:29:14 +00:00
gcmole [tools] Update gcmole 2021-10-28 07:53:44 +00:00
generate_shim_headers Add dependency to ICU 4.6 2013-07-01 08:32:41 +00:00
heap-layout [tool] heap layout trace file visualization tool 2021-12-22 02:07:35 +00:00
heap-stats [refactor] Rename StackFrameInfo to CallSiteInfo. 2021-12-14 10:03:25 +00:00
ignition Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
js [tool] heap layout trace file visualization tool 2021-12-22 02:07:35 +00:00
jsfunfuzz [test] update the jsfunfuzz archive in Google Storage 2018-12-18 15:00:35 +00:00
link_clicker.extension [tools] Add link_click chrome extension 2017-05-09 15:25:21 +00:00
mb Remove --isolated from mb.py 2021-12-02 08:31:19 +00:00
memory [tools] Clean up insensitive terms 2020-12-01 20:02:48 +00:00
msan Rename msan blacklist.txt to ignorelist.txt 2021-05-27 08:24:50 +00:00
perf [tools] Refactor patch/no-patch terminology in run_perf.py 2017-11-22 07:19:50 +00:00
profview [tools] Profiler builtins and sparkplug fixes 2021-04-21 11:44:31 +00:00
release [tools] Fix list_depreceated.py 2021-10-26 12:07:01 +00:00
sanitizers [respect] Stop using "blacklist" in several python tools 2020-07-10 19:11:36 +00:00
snapshot Fix a Python3 compatibility issue in asm_to_inline_asm.py. 2020-08-03 22:21:55 +00:00
system-analyzer [tool] heap layout trace file visualization tool 2021-12-22 02:07:35 +00:00
testrunner [wasm] Lazy compilation after deserialization 2022-01-10 16:35:48 +00:00
toolchain [build] Add support for the other MIPS architectures 2018-03-19 10:43:07 +00:00
torque [torque] Invert the default for @generateCppClass 2021-07-21 15:21:00 +00:00
tracing/proto-converter [tools] Refactor, use built-in Array.flat() instead of custom flatten method 2021-05-31 07:46:15 +00:00
turbolizer [turbolizer] Solve off-by-one source position error for non-Wasm 2021-07-09 09:07:54 +00:00
ubsan [respect] Rename UBSAN's blacklists to ignorelists 2021-04-28 07:55:39 +00:00
unittests V8 Sandbox rebranding 2021-12-15 17:09:36 +00:00
v8.xcodeproj Add support for building Xcode project files from GYP files 2011-06-09 09:07:17 +00:00
v8windbg Remove absolute paths in ninja files for v8windbg gn file 2021-12-13 16:22:54 +00:00
valgrind/asan [build] Add testrunner data deps 2018-03-26 12:17:08 +00:00
vim [vim] Update vim scripts 2021-04-01 16:14:04 +00:00
visual_studio Remove the Visual Studio project files 2011-05-02 13:43:13 +00:00
wasm [wasm] Add wasm wpt tests to the V8 tests 2021-09-14 19:10:27 +00:00
wasm-compilation-hints [wasm] Update OWNERS 2020-01-08 14:56:06 +00:00
zone-stats [zone-stats] Show all zones in a filter 2020-09-09 16:16:11 +00:00
__init__.py [test] make python recognize tools and tools/unittests as packages 2018-12-17 12:12:43 +00:00
adb-d8.py Remove JS natives support, step 3 2019-10-22 07:48:05 +00:00
android-build.sh Rewrite Makefile rules for Android to allow parallel execution 2012-07-27 11:14:44 +00:00
android-ll-prof.sh Change default ARCH version in android low-level profiler script to 4.6 2012-10-08 11:11:30 +00:00
android-run.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
android-sync.sh [mjsunit][tools] Sync module files for tests 2020-10-07 12:45:19 +00:00
arguments.mjs [tools] Cleanup Arguments processing in tools 2021-06-01 09:43:46 +00:00
avg.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
bash-completion.sh [bash-completion] Support some gm.py completion 2021-03-24 16:24:25 +00:00
bigint-tester.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
BUILD.gn [tools] Add v8windbg, a WinDbg extension for V8 2020-02-18 19:16:18 +00:00
callstats_groups.py [web snapshot] web snapshot <3 RuntimeCallStats 2021-05-19 12:16:28 +00:00
callstats-from-telemetry.sh [Tools] Improve callstats.html .txt file handling 2021-01-28 10:37:09 +00:00
callstats.html [web snapshot] web snapshot <3 RuntimeCallStats 2021-05-19 12:16:28 +00:00
callstats.py [callstats] relocate the vpython imports 2020-02-27 14:45:56 +00:00
callstats.py.vpython [tools] Fix platform specification for scipi 2018-08-17 18:49:49 +00:00
check-inline-includes.sh [iwyu] Extend inline include checking to tests. 2017-09-08 09:31:32 +00:00
check-static-initializers.sh Bump expected static initializers count from 2 to 3 2021-02-12 09:47:44 +00:00
check-unused-bailouts.sh [tools] Speed-up check-unused-bailouts.sh 2017-08-02 11:11:19 +00:00
check-unused-symbols.sh [cleanup] Remove unused heap-symbols and add tool. 2018-11-08 17:57:05 +00:00
codemap.mjs [tools][system-analyzer] Support profiling ticks 2021-05-31 13:09:16 +00:00
collect_deprecation_stats.sh [objects] Deprecate GetIsolate/Heap behind a flag 2018-06-01 15:19:21 +00:00
compare_torque_output.py [torque] Add support for torque output comparison 2020-01-21 14:39:04 +00:00
compare-table-gen.js Add more exhaustive tests for Math.min and Math.max. 2015-04-10 12:35:16 +00:00
consarray.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +00:00
cpu.sh [tools] Allow specifying cores for cpu.sh script. 2015-11-18 10:53:30 +00:00
cross_build_gcc.sh Fix tools/cross_build_gcc.sh. 2014-02-20 16:37:40 +00:00
csvparser.mjs [tools] Add api events timeline-track to system-analyzer 2020-12-05 10:49:42 +00:00
DEPS Add DEPS files and run checkdeps in presubmit check 2014-06-03 13:39:42 +00:00
detect-builtins.js [tools] Fix detect-builtins.js 2016-06-09 10:17:32 +00:00
disasm.py [grokdump] Include -z flag to make objdump disassemble all-zero sections 2017-04-21 13:35:37 +00:00
draw_instruction_graph.sh Rename A64 port to ARM64 port 2014-03-21 09:28:26 +00:00
dump-cpp.py [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
dumpcpp-driver.mjs [tools][system-analyzer] Add local symbol server 2021-07-01 09:59:17 +00:00
dumpcpp.mjs Reland "[mjsunit][tools][d8] Full roundtrip tickprocessor test" 2021-06-02 07:02:48 +00:00
eval_gc_nvp.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
eval_gc_time.sh Remove all leftovers of store buffer 2021-11-10 09:29:41 +00:00
find_depot_tools.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
find-builtin [tools] Add a tool for finding builtins 2021-04-07 12:51:38 +00:00
find-commit-for-patch.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
freebsd-tick-processor * Fix build errors on FreeBSD 8.2 2011-03-16 11:15:43 +00:00
fuzz-harness.sh [compiler] Make --debug-code the default in debug builds. 2016-12-02 11:36:55 +00:00
gc_nvp_common.py Clean up mark-compact phases and GC counter names. 2015-12-11 11:26:21 +00:00
gc-nvp-to-csv.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gc-nvp-trace-processor.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gdb-v8-support.py [tools] Fix gdb redirect helper in gdb-v8-support.py 2021-10-21 12:27:45 +00:00
gdbinit [gdbinit] Also look for OS::DebugBreak frames 2022-01-04 15:51:18 +00:00
gen-inlining-tests.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gen-keywords-gen-h.py Fix gen-keywords-gen-h.py 2022-01-03 16:38:27 +00:00
gen-postmortem-metadata.py [objects] Make PropertyKind an enum class to fix -Wshadow 2021-11-15 19:05:14 +00:00
gen-v8-gn.py [Py3] fix py3 issue in tools 2021-01-25 15:33:53 +00:00
generate-builtins-tests.py [respect] Stop using "blacklist" in several python tools 2020-07-10 19:11:36 +00:00
generate-header-include-checks.py Reland "[include] Split out v8.h" 2021-08-24 13:08:55 +00:00
generate-runtime-call-stats.py [tools] Fix retention of json files in RCS script 2020-03-26 12:07:56 +00:00
generate-ten-powers.scm
get_landmines.py [landmines] Force clean build to fix Misc V8 Linux gcc 2019-06-06 21:52:11 +00:00
grokdump.py [objects] Delete double field unboxing 2021-02-11 17:24:15 +00:00
ic-processor [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
ic-processor-driver.mjs [tools][system-analyzer] Add local symbol server 2021-07-01 09:59:17 +00:00
index.html [tool] heap layout trace file visualization tool 2021-12-22 02:07:35 +00:00
linux-tick-processor [tools] Port more tools to ES6 classes 2020-11-04 14:45:41 +00:00
ll_prof.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
lldb_commands.py [tools] Set up source map for lldb 2021-07-01 18:04:17 +00:00
locs.py [tools] Use ThreadPoolExecutor with reasonable job count default 2019-04-08 10:41:46 +00:00
logreader.mjs [tools][system-analyzer] Add local symbol server 2021-07-01 09:59:17 +00:00
mac-nm [profiler] Graphical front-end for tick processor. 2017-03-04 13:04:58 +00:00
mac-tick-processor
Makefile.tags [Makefile] Move tags generation to standalone Makefile 2018-01-26 12:03:32 +00:00
objdump-v8 [disasm] Make jump target printing perf friendly 2017-03-20 14:47:04 +00:00
OWNERS [owners] Includes infra team as tools owners 2021-11-25 07:55:08 +00:00
package-lock.json [tools] Add README.md file and package.json for local development 2021-07-05 16:43:28 +00:00
package.json [tools] Add README.md file and package.json for local development 2021-07-05 16:43:28 +00:00
parse-processor [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
parse-processor-driver.mjs [tools][system-analyzer] Add local symbol server 2021-07-01 09:59:17 +00:00
parse-processor.html [tools] Prepare parse-processor for baseline compiler 2021-02-22 10:51:00 +00:00
parse-processor.mjs [tools] Cleanup Arguments processing in tools 2021-06-01 09:43:46 +00:00
perf-compare.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
predictable_wrapper.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
PRESUBMIT.py [presubmit] Clean up insensitive terms 2020-07-27 18:05:48 +00:00
process-wasm-compilation-times.py [wasm] Internal representation for function references 2021-11-24 13:07:28 +00:00
profile_view.js Tick processor: improved [Summary] section 2014-08-04 08:31:49 +00:00
profile_view.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
profile.mjs [tools] Various system-analyzer fixes 2021-11-30 15:16:21 +00:00
README.md [tools] Add README.md file and package.json for local development 2021-07-05 16:43:28 +00:00
regexp-sequences.py Preparing v8 to use with python3 2019-10-18 13:10:56 +00:00
run_perf.py [tools] Print CWD change in debug log 2021-09-21 12:51:06 +00:00
run-clang-tidy.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
run-llprof.sh Fix tools/run-llprof.sh to work with newer perf. 2014-10-09 06:01:41 +00:00
run-num-fuzzer.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
run-perf.sh [cleanup] Replace underscore by minus in d8 flags 2019-04-03 12:32:08 +00:00
run-tests.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
run-wasm-api-tests.py [wasm-c-api] Roll 7865f7d: Expose possible traps during Instance::make 2019-08-23 09:46:29 +00:00
run.py Show failure codes in run.py 2020-06-17 17:16:22 +00:00
shell-utils.h Move remaining files in src/ 2019-05-24 18:24:36 +00:00
sourcemap.mjs [system-analyzer] Add source map support 2021-06-22 14:11:03 +00:00
splaytree.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +00:00
stats-viewer.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
test262-results-parser.js test262 roll 2018-08-28 21:18:23 +00:00
tick-processor.html Reland "[mjsunit][tools][d8] Full roundtrip tickprocessor test" 2021-06-02 07:02:48 +00:00
tickprocessor-driver.mjs [tools][system-analyzer] Add local symbol server 2021-07-01 09:59:17 +00:00
tickprocessor.mjs [tools][system-analyzer] Add FeedbackVector support 2021-10-27 09:40:41 +00:00
try_perf.py [v8_perf] remove deprecated builder options from v8 perf trybot 2021-12-02 11:02:32 +00:00
turbolizer-perf.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
update-object-macros-undef.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
v8_presubmit.py [tool] heap layout trace file visualization tool 2021-12-22 02:07:35 +00:00
v8heapconst.py [inspector] Capture stack trace only once for JSError objects. 2022-01-10 14:55:18 +00:00
whitespace.txt Revert "Whitespace change to test alerts" 2021-11-02 12:51:13 +00:00
windbg.js [heap] Add base class for LargeObjectSpaces 2019-10-25 09:22:57 +00:00
windows-tick-processor.bat [tools] Use .mjs in windows-tick-processor.bat 2021-01-07 09:00:23 +00:00
wpr.wprp Step 1 (of 3-ish): Basic ETW Instrumentation in V8 2021-01-05 20:11:03 +00:00

README.md

TOOLS

This directory contains debugging and investigation tools for V8.

The contents are regularly mirrored to http://v8.dev/tools.

Local Development

For local development you have to start a local webserver under http://localhost:8000:

  cd tools/;
  npm install;
  ws;

Local Symbol Server

The system-analyzer can symbolize profiles for local binaries by running a local symbol server

  cd tools/;
  ws --stack system-analyzer/lws-middleware.js lws-static cors;

Note that the local symbol server will run nm and objdump and has access to your files.