interaction with gprof

[Janus Weil]

2013/11/18 Janus Weil <janus@gcc.gnu.org>:
>> I vaguely remember problems with getting proper backtraces into
>> internal subroutines (which occurred to me a couple of times, but
>> never bothered me enough to take action). That's very probably
>> related.
>
> OTOH, at least a simple example seems to work with current gfortran
> (see below), so either the backtrace problem has been fixed or I was
> just fantasizing (or maybe the problem was with ifort?) ...

Ok, to follow up on that, I think the problems I remember were indeed
with ifort, which misses a good part of the backtrace when not using
-g (see below).

Sorry for the noise ...

Cheers,
Janus



> cat bt_ifort.f90
module m

contains

  subroutine s1
    call s2()
  contains
    subroutine s2
      call tracebackqq()
    end subroutine
  end subroutine

end module

program p
use m
call s1()
end

> ifort bt_ifort.f90 -traceback
> ./a.out

Image              PC                Routine            Line
Source
a.out              0000000000463D4A  Unknown               Unknown  Unknown
a.out              0000000000462846  Unknown               Unknown  Unknown
a.out              000000000041AEB0  Unknown               Unknown  Unknown
a.out              0000000000405486  Unknown               Unknown  Unknown
a.out              0000000000402C46  MAIN__                     17  bt_ifort.f90
a.out              0000000000402BEC  Unknown               Unknown  Unknown
libc.so.6          00007F96E0D6FB7D  Unknown               Unknown  Unknown
a.out              0000000000402AE9  Unknown               Unknown  Unknown