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Dan Elphick authored
Reland of https://chromium-review.googlesource.com/c/v8/v8/+/1795358. [builtins] Move non-JS linkage builtins code objects into RO_SPACE Creates an allow-list of builtins that can still go in code_space including all TFJ builtins and a small manual list that should be pared down in the future. For builtins that go in RO_SPACE a Code object is created that contains an immediate trap instruction. Generally these Code objects are still no smaller than CODE_SPACE Code objects because of the Code object alignment requirements. This will hopefully be addressed in a follow-up CL either by relaxing them or removing the instruction stream completely. In the snapshot, this reduces code_space from ~152k to ~40k (-112k) and increases by the same amount. Change-Id: I76661c35c7ea5866c1fb16e87e87122b3e3ca0ce Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1893336 Commit-Queue: Dan Elphick <delphick@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#64700}
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