[haiku-bugs] Re: [Haiku] #9221: Breakpoints in dynamically loaded add-ons don't seem to be installed correctly
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Wed, 28 Nov 2012 13:41:28 -0000
#9221: Breakpoints in dynamically loaded add-ons don't seem to be installed
correctly
-------------------------------------+----------------------------
Reporter: anevilyak | Owner: bonefish
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Applications/Debugger | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------------------+----------------------------
Comment (by bonefish):
Replying to [comment:1 anevilyak]:
> This does make me wonder if it's possible that this is simply a race
between us receiving the image load notification, loading debug
information and installing the breakpoints vs the thread executing past
where the breakpoint would've been before we make it that far. I'm a
little unclear on when execution does/doesn't get suspended when these
debug events come into play though.
This is likely the cause. Have a look at how
`TeamDebugger::_HandleDebuggerMessage()` handles
`B_DEBUGGER_MESSAGE_IMAGE_CREATED`. After the `LoadImageDebugInfoJob` is
scheduled the thread is continued immediately. If there's a breakpoint in
this image, we'll have to keep the thread blocked until the image debug
info has been loaded and the breakpoints have been installed.
--
Ticket URL: <http://dev.haiku-os.org/ticket/9221#comment:2>
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