[haiku-bugs] Re: [Haiku] #10459: [Debugger] Investigate anomalous single stepping behavior
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Thu, 23 Jan 2014 12:47:55 -0000
#10459: [Debugger] Investigate anomalous single stepping behavior
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Reporter: anevilyak | Owner: anevilyak
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
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Comment (by anevilyak):
Replying to [comment:1 bonefish]:
> It is possible that in the code gcc generates some function exits share
instructions (other than the epilogue).
Disassembly attached. If that's indeed the case, then that perfectly
explains the presence of the aforementioned discriminator command, as its
intended purpose is precisely to differentiate multiple source lines
overlapping the same instruction address. The problem I have is simply
that from the specification, it's not obvious how to actually determine
which of said lines is the correct one while stepping, as no other
reference is made to it beyond the line number program section (c.f.
http://dwarfstd.org/doc/DWARF4.pdf section 6.2).
--
Ticket URL: <https://dev.haiku-os.org/ticket/10459#comment:2>
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