[maemo-developers] [maemo-developers] Problem with GDB and threads...

[From: Eero Tamminen]

Hi,

> I simply compiled with "-g" before, adding the "-no-omit-frame-pointer" 
> directive did not help.

Actually I think the library where the function giving infinite
backtrace is should be compiled with -g (or debug package for
it should be installed).  If that doesn't help then you need
to compile that library / binary with -fno-omit-frame-pointer.

At least one reason for the infinite backtraces has been __attribute__
((__noreturn__)) specified to functions.  That is given to functions
that do not return and for them -fno-omit-frame-pointer is needed to
get working backtrace, for them -g is not enough.  Normally those are
exit functions, but maybe thread creation function doesn't return
either?  (I've seen some thread usage example code where __noreturn__
attribute is used for them)


	- Eero