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Re: [PATCH]Remove stack symbol definition from crt files for SH
- From: Jonathan Larmour <jlarmour at redhat dot com>
- To: "J. Johnston" <jjohnstn at cygnus dot com>
- Cc: anitak <anitak at kpit dot com>, newlib at sources dot redhat dot com
- Date: Mon, 25 Feb 2002 16:32:37 +0000
- Subject: Re: [PATCH]Remove stack symbol definition from crt files for SH
- Organization: Red Hat UK Ltd.
- References: <012f01c17ca4$17df8590$8d100aac@stpp.soft.net> <3C190B42.D754E00F@cygnus.com>
"J. Johnston" wrote:
>
> anitak wrote:
> >
> > Hi,
> > When the stack region is specified at the top of the memory in linker
> > script,
> > the following definition in newlib/libc/sys/sh/crt0.S
> > _stack: .long 0xdeaddead causes it to be put out of ram and gives error
> > for COFF.
> > Thanks for any reply.
> > Regards,
> > Anita Kulkarni
> >
>
> Patch accepted, thanks.
Sorry to time travel backwards :-), but I think this patch has an
unintended effect. The linker scripts in libgloss (at least) assume that
_stack is defined. Without this the linker scripts are not usable - in fact
this makes it difficult to provide a stack without defining the stack in
the application or some other object which can't be the intention, as
opposed to simply its location being in the linker script.
Anita's problem was that she didn't define a better location for _stack in
the linker script, that's all; but that was the way it was intended to be
used.
Jifl
----------------------------------------------------------------------------
> > ----------
> > --- ChangeLog Mon Dec 3 12:43:45 2001
> > +++ ChangeLog.New Mon Dec 3 13:03:18 2001
> > @@ -1,3 +1,7 @@
> > +2001-12-03 Anita Kulkarni <anitak@kpit.com>
> > +
> > + * libc/sys/sh/crt0.S: Remove stack symbol definition 0xdeaddead.
> > +
> > Wed Dec 14 Jeff Johnston <jjohnstn@redhat.com>
> >
> > * configure.host: Turn on long double I/O for Cygwin.
> >
> > ----------------------------------------------------------------------------
> > ----------
> > --- crt0.S Fri Feb 18 01:09:50 2000
> > +++ crt0.S.New Mon Dec 3 11:56:28 2001
> > @@ -52,4 +52,3 @@
> > #else
> > .section .stack
> > #endif
> > -_stack: .long 0xdeaddead
> >
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > Free download and free European support of GNU tool
> > chain (GNUSH v0101) for Hitachi's SH Series
> > Read more at http://www.kpit.com/products/support.htm
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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