v8/test
ishell@chromium.org 1067c6accc [ext-code-space] Add InterpreterEntryTrampolineForProfiling builtin
... - a code range size agnostic version of InterpreterEntryTrampoline
builtin. The new builtin is fully compatible with the default version
and used as a template for creating interpreter entry trampoline
Code objects when --interpreted-frames-native-stack is enabled.

This CL introduces a new assembler option "position_independent_code"
which affects the way builtin calls are generated.
This mode is enabled only for InterpreterEntryTrampolineForProfiling.

Motivation:

* InterpreterEntryTrampoline uses RelocInfo::CODE_TARGET for calling
  other builtins which requires the code range to be small enough to
  allow PC-relative jumps/calls between Code objects. This is the
  reason why --interpreted-frames-native-stack was not supported on
  arm and might not work on arm64 because the code range is bigger
  than the max PC-relative distance for call/jump instructions.
  The new builtin calls other builtins via builtins entry table which
  makes the code fully relocatable and usable for any code range size.

* RelocInfo::CODE_TARGET requires a target code to be materialized
  as a Code object which contradicts the Code-less builtins goal.

* The --interpreted-frames-native-stack is rarely used in the wild but
  we have to pay the price of deserializing InterpreterEntryTrampoline
  builtin as a Code object which consumes address space in the code
  range and thus limits the number of V8 isolates that can be created
  because of code range exhaustion. Now the pointer compression cage
  becomes the limiting factor instead of the code range.

* We can remove complicated logic of Factory::CopyCode() and respective
  support on GC side.

Bug: v8:11880, v8:8713, v8:12592
Change-Id: Ib72e28c03496c43db42f6fe46622def12e102f31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3811287
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82263}
2022-08-08 12:50:42 +00:00
..
benchmarks [infra] Change all Python shebangs to Python3 2022-08-05 14:55:00 +00:00
bigint [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
cctest [ext-code-space] Add InterpreterEntryTrampolineForProfiling builtin 2022-08-08 12:50:42 +00:00
common [wasm-gc] Remove br_on_func & br_on_non_func op 2022-08-02 07:41:23 +00:00
debugger [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
debugging [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
fuzzer [fuzzer][wasm] Use externref in structs, locals and signatures 2022-08-01 15:48:02 +00:00
fuzzilli [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
inspector [debug] Fix crash in debug scope search 2022-08-05 09:53:54 +00:00
intl [Intl] Remove DateTimeFormat order check not throw RangeError 2022-07-27 05:31:00 +00:00
js-perf-test [TurboFan] Remove inappropriate perf tests for BigInt multiply 2022-07-27 14:27:48 +00:00
memory [snapshot] Fix the Memory.json benchmark 2021-04-28 07:54:34 +00:00
message Reland "[riscv32] Add RISCV32 backend" 2022-08-04 12:47:44 +00:00
mjsunit [runtime] Check if proxy has been revoked in ObjectToString 2022-08-08 09:37:02 +00:00
mkgrokdump [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
mozilla [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
test262 [Temporal] Fix bug in Plain(Date|YearMonth|MonthDay) with() 2022-08-03 21:58:54 +00:00
torque Reland "Reland "[Torque] Generalize Torque literals to larger size"" 2022-02-04 09:40:24 +00:00
unittests [ext-code-space] Add InterpreterEntryTrampolineForProfiling builtin 2022-08-08 12:50:42 +00:00
wasm-api-tests [wasm-gc] Split any and extern type 2022-07-28 13:09:55 +00:00
wasm-js [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
wasm-spec-tests Reland "[riscv32] Add RISCV32 backend" 2022-08-04 12:47:44 +00:00
webkit [test] Refactor testrunner (4) 2022-07-18 09:52:24 +00:00
BUILD.gn [test] Move cctest/interpreter to unittests 2022-06-10 08:37:10 +00:00
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