[MacPorts] #48284: gdb @7.9.1_0: cannot determine type of primitive global variables

[MacPorts]

#48284: gdb @7.9.1_0: cannot determine type of primitive global variables
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  Reporter:  rbd@…    |      Owner:  stuartwesterman@…
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.3
Resolution:  invalid  |   Keywords:
      Port:  gdb      |
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Comment (by rbd@…):

 Thanks for figuring that out, Stuart, it hadn't occurred to me to try
 that. I can certainly use it as a workaround when needing to debug
 something without otherwise changing my build procedure, and that's
 definitely useful.

 Two points, however:

 (1) As noted in my original post, the gdb from the current MacPorts gdb-
 apple port works perfectly well on my example without me having to
 manually run dsymutil on my executable. Clearly, that version of gdb is
 somehow able to locate my global symbols in a way which the standard gdb
 7.9.1 cannot. I think that is a 7.9.1 deficiency which ought to be fixed.

 (2) Every single one of my cc commands includes the -g flag, including
 each of the .c to .o compiles and the final .o link command. It's rather
 lame IMHO that after all that I then have to use dsymutil, essentially
 saying 'No, fellas, I was actually really serious about wanting to be able
 save all my symbols for debugging purposes just like I said I did the
 first time.' I have never seen any cc compiling environment require this
 kind of nonsense, and I've seen a bunch of cc compiling environments. This
 may be as much a MacOS cc issue (or maybe more generally a clang problem)
 as a gdb problem, and I will see how far I get with Apple on filing a bug
 report on their end on this cc behavior.

 Thanks again for your workaround, but I hope you will reconsider closure
 of this bug report given the fact that enough symbol information is being
 stored somewhere such that gdb-apple can make sense of it where gdb 7.9.1
 cannot.

 Roger

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Ticket URL: <https://trac.macports.org/ticket/48284#comment:4>
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