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Re: [cdt-dev] duplicate breakpoints with cdi, cdt 7.0.0 on windows
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Thank you. I've filed the following report:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=332778
-Siva
On Thu, Dec 16, 2010 at 5:08 AM, Alena Laskavaia
<elaskavaia.cdt@xxxxxxxxx> wrote:
> Send a bug please attach your solutions is a patch. Probably first
> path comes from sources in eclipse and second from the binary -
> processed by gcc.
>
> On Wed, Dec 15, 2010 at 7:02 PM, Siva Velusamy <siva.velusamy@xxxxxxxxx> wrote:
>> Ok, I've figured out what the issue is, but I'm not sure what the best
>> way to solve it is.
>>
>> The class org.eclipse.cdt.debug.internal.core.CBreakpointManager
>> maintains a BreakpointMap that stores a list of current breakpoints.
>> Before adding a new breakpoint, this map is searched to see if the
>> same breakpoint already exists. This logic is present in the method
>> isSameBreakpoint.
>>
>> With our tools (or maybe I haven't configured something properly),
>> when this method runs, it compares two breakpoints (as described in my
>> previous email). The issue is that the two breakpoints use two
>> different file separators in their path:
>>
>> C:\path\to\hello.c
>> C://path//to//hello.c
>>
>> Obviously, a string comparison of the above two fails. If before
>> comparing the above two, I make sure that both paths are converted
>> into a single format (new Path(str).toOsString()), then the comparison
>> works and there are no more duplicate breakpoints.
>>
>> If you have any thoughts on whether this is a bug, or if I'm missing
>> some configuration somewhere, then do let me know. I can file a bug
>> report if you guys think this is a bug.
>>
>> Thanks,
>> Siva
>>
>> On Wed, Dec 15, 2010 at 3:00 PM, Siva Velusamy <siva.velusamy@xxxxxxxxx> wrote:
>>> More info:
>>>
>>> I notice that when I first set the breakpoint, a CLineBreakpoint is
>>> created. The stacktrace looks like this:
>>>
>>> -------
>>> CLineBreakpoint(resource="L/hello_world_0/src/helloworld.c",
>>> attributes=a map, add=true)
>>> CDIDebugModel.createLineBreakpoint
>>> ....
>>> -------
>>>
>>> Once this completes, it looks like it sets this breakpoint on the
>>> target, which causes a MIBreakpointCreatedEvent. As part of responding
>>> to this event, another CLineBreakpoint is created. The stacktrace now
>>> looks like this:
>>>
>>> --------
>>> CLineBreakpoint(resource="P/hello_world_0",
>>> attributes=a map one of whose attributes is a
>>> sourceHandle which points to
>>> /full/path/to/hello_world_0/src/helloworld.c",
>>> add=true)
>>> CDIDebugModel.createBreakpoint
>>> ..
>>> CBreakpointManager.handleBreakpointCreatedEvent
>>> --------
>>>
>>> So it looks like the difference is that the first one is a breakpoint
>>> on the file itself, while in reaction to the MI event, a breakpoint is
>>> created on the project, with the attribute being the file. The code
>>> seems to rely on the fact that these two should be identical (which
>>> they are not), so resulting in duplicates.
>>>
>>> Any thoughts on what the correct behavior should be for these methods?
>>>
>>> Thanks,
>>> Siva
>>>
>>> On Wed, Dec 15, 2010 at 12:06 PM, Siva Velusamy <siva.velusamy@xxxxxxxxx> wrote:
>>>> I'm seeing breakpoints listed twice in the breakpoints view.
>>>>
>>>> - When debugging is active, and you double click on a line, two
>>>> breakpoints are shown in the breakpoints view. However, only one
>>>> "break-insert" command is actually sent via MI to gdb.
>>>> - When you delete one of them, a "break-delete" command is sent. The
>>>> breakpoint is deleted from gdb, and the marker on the line goes away,
>>>> but the duplicate breakpoint remains in the breakpoints view.
>>>> - If you set a breakpoint before launching debug, then only one
>>>> breakpoint is added to the view. However, once you start debugging, a
>>>> duplicate of the same now shows up in the breakpoints view.
>>>>
>>>> All these issues are present only on Windows with a MingW based
>>>> toolchain. No issues on Linux. We are using CDI.
>>>>
>>>> Software versions: Eclipse Helios + CDT 7.0.0
>>>>
>>>> I'd appreciate it if anyone has any thoughts on which files to look at
>>>> in the source code.
>>>>
>>>> Thanks,
>>>> Siva
>>>>
>>>
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