• mikhail.naganov@gmail.com's avatar
    CPU profiler: add secure profiles by filtering out functions using security tokens. · 3d7ce8ac
    mikhail.naganov@gmail.com authored
    As several pages can run in a single V8 instance, it is possible to
    have functions from different security contexts intermixed in a single
    CPU profile.  To avoid exposing function names from one page to
    another, filtering is introduced.
    
    The basic idea is that instead of capturing return addresses from
    stack, we're now capturing JSFunction addresses (as we anyway work
    only with JS stack frames.)  Each JSFunction can reach out for
    context's security token. When providing a profile to a page, the
    profile is filtered using the security token of caller page. Any
    functions with different security tokens are filtered out (yes, we
    only do fast path check for now) and their ticks are attributed to
    their parents.
    
    Review URL: http://codereview.chromium.org/2083005
    
    git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
    3d7ce8ac
cpu-profiler-inl.h 3.43 KB