• Clemens Backes's avatar
    [wasm][debug] Don't publish code compiled for stepping · fb403653
    Clemens Backes authored
    This adds another enum value in the {ForDebugging} enum for stepping
    code.
    By not adding the code to the code table and jump table, we will never
    execute this code via a wasm function call. The code will only be used
    for the one frame where we want to step through.
    This speeds up stepping over recursive calls enormously, since the
    recursive calls don't run into the flooded breakpoints any more.
    It also fixes issues with non-local control flow, i.e. catching a trap
    and reentering the same wasm function.
    
    R=thibaudm@chromium.org
    
    Bug: v8:10235
    Change-Id: Idb304dd465418f842016a20c21d68989bb78cf1d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153205
    Commit-Queue: Clemens Backes <clemensb@chromium.org>
    Reviewed-by: 's avatarThibaud Michaud <thibaudm@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#67205}
    fb403653
wasm-tier.h 1.11 KB