Re: Running the hello.c example

[Ben Elliston <bje at redhat dot com>]

Hi.

>>>>> "Cristiano" == Cristiano Ligieri Pereira <cpereira@ics.uci.edu> writes:

  Cristiano> 0x8764: SWI     Fault (software, 0x69) pc=0x8764

  Cristiano> and this is the piece of the original code where the error is happening:

  Cristiano> 00008758 <_swiwrite>:
  Cristiano>     8758:       e1a0c00d        mov     ip, sp
  Cristiano>     875c:       e92dd800        stmdb   sp!, {fp, ip, lr, pc}
  Cristiano>     8760:       e24cb004        sub     fp, ip, #4      ; 0x4
  Cristiano>     8764:       ef000069        swi     0x00000069
  Cristiano>     8768:       e91ba800        ldmdb   fp, {fp, sp, pc}

  Cristiano> SWI is software interrupt, right? Looks like I'm trying to execution
  Cristiano> function 0x69 that doesn't exist? is this right?

I think you're on the right track.

  Cristiano> Why would this happen? This is such a simple example. And one more
  Cristiano> question..., which configuration is being used (besides ARM processor)
  Cristiano> once I haven't specified any configuration file, let alone created some
  Cristiano> configuration.

The default ARM system configuration in sid uses the ARM Angel monitor
and its associated syscall conventions.  My guess is that your build
of newlib is targetting some other ARM target where swi 69 is the
means by which characters are written.

Ben