Fw: arm-elf cross compiler problem with newlib

["Richard Slaughter" <rslaughter at anatel dot com>]

 Hi Amanda,
 I'm trying to do the same thing with the interrupt key words.  Only I'm
 using the ARM7TDMI core.
 If I'm understanding things correctly version 3.0.X has provisions for this
 keyword for the ARM.
 I could not get any earlier version of the GCC to recognize the keyword but
 was able to get the 3.0.2
 snapshot to work.   I'm trying to use it with C++  and the compiler is
 recognizing the keyword and adding
 code for the interrupt.   The code added is only using the default stack
and
 not the dedicated interrupt stack.
 example:  foo() __attribute__((interrupt("IRQ")))

 I'm getting two undefined references to __gxx_personaility_sj0 and
 __EH_FRAME_BEGIN__ when
 I build a simple C++ with one class and main().  Does anybody recognize
 these names?

 I'm trying to rom this C++ code but don't really understand all the
sections
 of the C++ default linker script can
 anyone point me the right direction for which sections can be romed and
 which must be in RAM.

 Thanks
 Richard Slaughter


 ----- Original Message -----
> From: "David Korn" <dkorn@pixelpower.com>
> To: <ananda.motte@philips.com>
> Cc: "Crossgcc-List (E-mail)" <crossgcc@sources.redhat.com>
> Sent: Monday, October 22, 2001 4:21 AM
> Subject: RE: arm-elf cross compiler problem with newlib
>
>
> > >-----Original Message-----
> > >From: ananda.motte@philips.com [mailto:ananda.motte@philips.com]
> > >Sent: 22 October 2001 10:41
> >
> > >Hi David,
> > >I don't know if I should address this problem to you or Kai
> >
> >     Hi Ananda,
> >
> >   The best bet is always to send it to the list, then whoever feels best
> > able to deal with it is most likely to reply :)  Many heads are always
> > better than one!
> >
> > >but here goes anyway:
> > >
> > >I'm trying to replace the interrupt handler functionality _irq
> > >(declared as function declaration keyword ) provided by the
> > >ARM tools (now that I have the GNU cross compiler !!!).
> > >Well I guess there are some ways to do this but one of the
> > >ways seems to be the usage of the __attribute__((interrupt))or
> > >__attribute__((interrupt_handler,sp_switch("glvar")))
> > >but my cross compiler does not seem to recognize these attribute names:
> > >
> > >/ARM720T.h:160: warning: `interrupt' attribute directive ignored
> >
> >   Ah.  Yeh, I remember reading about various patches for several
different
> > targets to add __attribute__ ((interrupt)).  Gcc only supports it for
the
> > M32R/D and SH series cpus by default, but it is a popular feature and
many
> > people have written patches to add it to other targets.  Can I suggest
you
> > try a search of the mailing list archives at the Gcc site
> >
> >  http://gcc.gnu.org/lists.html
> >
> > and the cygnus / redhat site
> >
> >  http://sources.redhat.com/lists.html
> >
> > because I'm pretty sure that's where i stumbled across them, and if you
> > can't find it after a good go at that send another mail to the list and
> > we'll try and track it down collectively :)
> >
> >    cheers,
> >       DaveK
> > --
> > Burn your ID card!  http://www.optional-identity.org.uk/
> > Help support the campaign, copy this into your .sig!
> >
> >
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