• Anton Bikineev's avatar
    cppgc: Check poisoness only on 64bit archs. · 454272df
    Anton Bikineev authored
    On 64bit we guarantee that object alignment and sizes are multiple of
    the default shadow memory granularity (8 bytes). The CL also introduces
    CHECKs that the assumption holds.
    
    Having kObjectAlignment be multiple of this granularity allows us to
    check poisoness of each byte of an object. On 32bit we can not do that,
    since the object alignment requirement is 4 bytes.
    
    Bug: chromium:1241514
    Change-Id: Ib19667724adaa7bc791ffa054eea618c365d65cb
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3118552
    Commit-Queue: Anton Bikineev <bikineev@chromium.org>
    Auto-Submit: Anton Bikineev <bikineev@chromium.org>
    Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#76499}
    454272df
platform.cc 2.14 KB