Re: [avr-gcc-list] Stack size question

[Ned Konz]

On Monday 28 June 2004 5:36 am, John Yannakopoulos wrote:

> I have the following question: Can I determine the maximum stack size
> of my program? My at90s8535 resets and I suspect that a stack overflow
> occurs. Is there a tool (maybe from binutils) or some utility to check
> against stack size?

There is cflow, which works with AVR GCC pretty well:

$ cflow -X -D__AVR_ATtiny26__ -D_BV= -Dsei= -g ws2.c
ws2.c:2:20: avr/io.h: No such file or directory
ws2.c:3:27: avr/interrupt.h: No such file or directory
ws2.c:4:24: avr/signal.h: No such file or directory
ws2.c:5:23: avr/sleep.h: No such file or directory
1       SIGNAL {ws2.c 17}
2               setPhaseFrom10bit {dds.c 64}
3               stepDDS {dds.c 40}
4       main {ws2.c 76}
5               initializeIO {ws2.c 36}
6                       timer_enable_int {}
7               set_sleep_mode {}
8               sleep_mode {}


There is also calltree:

http://www.ibiblio.org/pub/Linux/devel/lang/c/calltree-2.0.tar.gz

You will have to compile it yourself, though.
It can do this (you'll probably have to figure out how to change its include 
path):

$ calltree ws2.c
<stdin>:2:20: avr/io.h: No such file or directory
<stdin>:3:27: avr/interrupt.h: No such file or directory
<stdin>:4:24: avr/signal.h: No such file or directory
<stdin>:5:23: avr/sleep.h: No such file or directory
SIGNAL:
    _BV
    setPhaseFrom10bit
    stepDDS
_BV:
    EXTERNAL ROUTINE
initializeIO:
    _BV
    sei
    timer_enable_int
main:
    initializeIO
        _BV
        sei
        timer_enable_int
    set_sleep_mode
    sleep_mode
sei:
    EXTERNAL ROUTINE
setPhaseFrom10bit:
set_sleep_mode:
    EXTERNAL ROUTINE
sleep_mode:
    EXTERNAL ROUTINE
stepDDS:
timer_enable_int:
    EXTERNAL ROUTINE

However, neither of these take into account any inlining.