Bug: v8:10026
Change-Id: Ie040d36d9a98943f97236998df53408bb060d028
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764760Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/master@{#73506}

Without this, the mac/arm64 linker complains:

ld: warning: arm64 function not 4-byte aligned:
    _PushAllRegistersAndIterateStack from obj/v8/v8_cppgc_shared/push_registers_asm.o
ld: fatal warning(s) induced error (-fatal_warnings)

It's probably a good idea to use the same alignment on all platforms, so
do this everywhere, not just on mac.

Bug: chromium:1099892
Change-Id: I15ca7bac04e1a1a1de09ecdfeaddd9e788051755
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2283908
Auto-Submit: Nico Weber <thakis@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68701}

This allows the implementation of different stack scanning mechanisms in
V8 (e.g. conservative scanning) while re-using the stack walking API.

Change-Id: I9b9c3b8ffe5d527ca3f7105776821776b509b187
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2238194
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68457}