[ oprofile-Bugs-475307 ] assembly functions not found by oprofpp

[<no...@so...>]

Bugs item #475307, was opened at 2001-10-26 07:17
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=116191&aid=475307&group_id=16191

Category: None
Group: None
>Status: Closed
Resolution: Fixed
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: assembly functions not found by oprofpp

Initial Comment:
I am using oprofile 0.0.6 on Red Hat 6.2 with kernel 2.4.8

I have a program in which some of the code is written in C-callable assembly using nasm to 
assemble it (mmx stuff).

I can find the assembly functions in gdb (e.g. set breakpoints), and if I use op_to_source -a I see 
them in the (tons of) output.

But when I try to use oprofpp (oprofpp -l -d ./myprog), I don't see any of the functions written in 
assembler.  If I give it -s and and the name of a function written in assembler, it says symbol not 
found.

I am running on an athlon (t-bird) if that makes any difference.  I am using the RETIRED_OPS 
counter.

I am using gcc 2.95.3 and nasm 0.98.

----------------------------------------------------------------------

Comment By: Philippe Elie (phil_e)
Date: 2001-10-28 14:32

Message:
Logged In: YES 
user_id=318973

With nasm you must declare your function as

GLOBAL:function function_name

else the linker do not put BSF_FUNCTION flag to your symbol.

----------------------------------------------------------------------

Comment By: Philippe Elie (phil_e)
Date: 2001-10-26 19:47

Message:
Logged In: YES 
user_id=318973

That's probably a problem with nasm which incorrectly 
export the symbol. oprofpp filter symbol name to avoid 
flooding of symbol op_to_source -a use currently objdump
to get assembly output so you can see them. Can you send 
the result of:

$nm application_name | grep symbol_name


----------------------------------------------------------------------

You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=116191&aid=475307&group_id=16191