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Re: [patch/testcase] gdb.asm/m32r.inc: fix compile error
On Wed, Aug 06, 2003 at 10:48:46AM +0900, Kei Sakamoto wrote:
> > Two minor things:
> > - You accidentally sent a reversed diff.
> > - ChangeLog formatting. It should be:
> >
> > 2003-08-04 Kei Sakamoto <sakamoto.kei@renesas.com>
> >
> > * gdb.asm/m32r.inc: Add several missing symbols. Replace ld24
> > with seth/add3.
>
> Sorry about that.
>
> > One less minor thing: no other port needs to declare symbols. It looks
> > like part of libc is being dragged in somehow on m32r; could you
> > explain why the symbols are necessary?
>
> asm-source is compiled with -nostartfiles. So gcc does not use libgloss.a.
> But on m32r, somehow several system calls, _write, etc., are included
> in it. So it is necessary to declare these symbols. On other architectures,
> these system calls are included in libc.a, which is not removed
> by -nostartfiles.
>
> Unfortunately, I don't know why m32r's libgloss is different from others.
> Should I modify libgloss and newlib rather than declare symbols in m32r.inc?
-nostartfiles should prevent the inclusion of crt* but not of libgloss;
libgloss is a matter for -nostdlib, which we _don't_ use. I see that
in the m32r GCC port, -lgloss is in ENDFILE_CPU_SPEC, which is unlike
any other port.
I don't want to mess with that right now, but does adding -lgloss to
${link-flags} in asm-source.exp fix the problem?
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer