• sgjesse@chromium.org's avatar
    Misc debugger enhancements and bug fixes. · 2957881a
    sgjesse@chromium.org authored
    1. Added gdb style debugger commands (and their shortcuts) for d8.
    These include:
    - s[tep] : step into the current statement.
    - s[tep]i[n]: step into the current statement with the minimum step.
    - n[ext] : step to the next statement.
    - fin[ish] : step out of the current function.
    - cond : setting conditions on breakpoints.
    - d[elete] : deletes breakpoints.
    - en[able]|dis[able]: enables/disables breakpoints including
    exception breakpoints.
    - ignore : ignores a breakpoint for a specified period.
    - inf[o] ar[gs] : info on arguments of the current function.
    - inf[o] lo[cals] : info on local vars of the current function.
    - inf[o] br[eakpoints] : info on breakpoints.
    - l[ist] : similar to source, but allows the user to continually
    dump subsequent lines of source code either in the
    forward or backward direction.
    - quit / exit / disconnect : terminates the remote debugger
    session.
    
    NOTE: Active breakpoints will automatically be disabled when
    the remote debugger detaches. This allows v8 to continue to
    run without worrying about a loss of a debugger session.
    
    2. Added support for breaking the debugger by simply typing ENTER.
    The break command is now optional.
    
    3. Once the debugger is broken, the user can now just type ENTER
    to repeat the last command. This is useful to functionality that
    needs to be invoked repeatedly e.g. step, list.
    
    4. Added more verbose descriptions in d8's help.
    
    5. Fixed a line and column number offset bug in the listing of breakpoint
    line and column numbers.
    
    6. Added a gc command to allow GCs to be requested from the debugger
    interface. The plumbing for requesting different types of GCs is
    there, but the underlying implementation currently only triggers a
    full mark-compact GC. The command also returns the before and after
    sizes of the heap.
    
    7. Added trace json, and flags commands that are not published in help.
    trace json is used for tracing the debugger packets send from and
    received by d8. flags is for setting v8 flags. These are useful for
    people debugging v8 itself, but not necessarily users of v8.
    
    8. Added the ability to enable and disable break on all / uncaught
    exceptions in to d8.
    
    9. Added a fix to prevent the Debugger Agent from being re-instantiated
    if one already exists.
    
    10. Added the ability to filter results of the script command by matching
    text or numbers on the results.
    
    11. Added v8 flags to enable/disable the sending of debugger BeforeCompile,
    AfterCompile, and ScriptCollected events.
    
    12. Fixed some undefined value bugs that resulted in v8 or the debugger
    failing.
    
    13. Added a few minor WEBOS__ customizations (analogous to ANDROID
    customizations).
    
    Patch by Mark Lam from Hewlett-Packard Development Company, LP
    
    Review URL: http://codereview.chromium.org/5980006
    Review URL: http://codereview.chromium.org/6086010
    
    
    git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
    2957881a
debug.h 36.9 KB