[Bug c++/12126] gdb does not display source-level debugging formember function of a templated iterator.

["aegges at web dot de" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=12126

Axel MÃller <aegges at web dot de> changed:

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                 CC|                            |aegges at web dot de

--- Comment #3 from Axel MÃller <aegges at web dot de> 2011-09-13 12:05:04 UTC ---
I have a similar problem with inlined methods. gdb and addr2line are not able
to resolve the source file and line of the corresponding address. I am using
gdb 7.2 but gdb 7.3 fails, too. Interestingly, Valgrind can resolve it and nm
shows clearly that the debug info is actually in the executable. Unfortunately,
I was not able to construct a simple testcase to show the problem here.

After some changes on a different source file and recompilation the problem
went away. The only difference I saw in the disassembler code was that the
following line was added in the case where gdb has a problem:
call <i686.get_pc_thunk.bx>

Usually, this call is inserted in case of position independent code (option
-fPIC for gcc). I don't know why it was inserted in my executable as I don't
use this option. Perhaps this information can help to identify the cause of
this bug and solve it.

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