• Yang Guo's avatar
    [debug] implement break on entry for builtin functions. · 876f37c3
    Yang Guo authored
    We reuse most of the infrastructure to set break points, with minor
    differences when we encounter functions where we can only break on entry:
    - PrepareFunctionForBreakPoints simply deopts all functions.
    - Break point objects have the canonical source position 0.
    - Break point is set/checked/cleared via bit on the DebugInfo.
    - Debug::Break do not continue stepping since stepping is implemented via
      regular break points and therefore do not interfere with break on entry.
    
    I promise to add more tests.
    
    Bug: v8:178
    Change-Id: Ifc8231995c771286db0b848b811e1c3ad3b12494
    Reviewed-on: https://chromium-review.googlesource.com/906245
    Commit-Queue: Yang Guo <yangguo@chromium.org>
    Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#51152}
    876f37c3
objects.cc 694 KB