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On Wed, 09 May 2012 14:30:52 -0600, Tom Tromey <tromey@redhat.com> wrote: >>>>>> "Tomasz" == Tomasz Grobelny <tomasz@grobelny.oswiecenia.net> writes: > > tomasz> Die: DW_TAG_<unknown> (abbrev 8, offset 0x199) > [...] > Tomasz> Dwarf Error: Cannot find type of die [in module > /login/sg209371/a.out] > > Tomasz> This time this is gdb 7.0.1. > > Tomasz> The question is indeed whether the issue is on compiler side or > Tomasz> gdb side. The comments from the link you mentioned are from > Tomasz> 2007, I would think that Oracle is capable of fixing a bug in 5 > Tomasz> years... Also the dwarfdump shows some sensible information > Tomasz> (some symbols, names of the source files). > > This kind of question can't be answered without more information. > I will be happy to provide it (but only for the next two weeks as I will lose access to those solaris machines later). > It could be a compiler bug, or a gdb bug, or a disagreement about the > interpretation of DWARF. > I cannot tell... > If you have a small test case, a dump of the DWARF information might > prove helpful. If you only have a large test case, then something more > selective could help. > A trivial test case attached. Compiled with: CC: Sun C++ 5.11 SunOS_sparc 2010/08/13 > For example, in the above you could examine the DWARF for DIE 0x199. > gdb just says DW_TAG_<unknown>, which isn't very helpful... but > presumably the platform DWARF dumper would do better. > I used dwarfdump from the same directory as the compiler. But still the most important question for me is: is it supposed to work? I understand that there may be bugs on either side, but does the general design of dwarf format/compiler/gdb allow for debugging code generated with sun studio compiler using gdb? -- Regards, Tomasz Grobelny
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