Re: sparc: ld: --relax and -r may not be used together

[Riccardo Mottola]

Hi,

yes, those are the linker options which GCC invokes. The problem here is 
that apparently the relax option is on some architectures / compile 
versions passed directly to the linker, without we specifying it and  
for the linker -r and --relax are incompatible.

Riccardo

On 04/12/11 18:05, address@hidden wrote:
> Hi,
>
> Am Sun, 10 Apr 2011 17:31:43 +0200
> schrieb Riccardo Mottola<address@hidden>:
>
> > Hi,
> >
> > indeed... it is very strange..
> >
> > http://hackage.haskell.org/trac/ghc/ticket/3791
> >
> > is detailed and it even worked. I have seen several similar posts...
> >
> > however according to
> > http://gcc.gnu.org/onlinedocs/gcc-3.2.3/gcc/Option-Summary.html#Option%20Summary
> >
> > neither in it or in the 4.4/4.5 series I can find this option. The
> > closest is no-relax-immediate but not for sparc. What is this, black
> > magic? The quest for the hidden undocumented GCC option?
> Might you be looking for this one?
>
> `--relax'
> `--no-relax'
>       An option with machine dependent effects.  This option is only
>       supported on a few targets.  *Note `ld' and the H8/300: H8/300.
>       *Note `ld' and the Intel 960 family: i960.  *Note `ld' and Xtensa
>       Processors: Xtensa.  *Note `ld' and the 68HC11 and 68HC12:
>       M68HC11/68HC12.  *Note `ld' and PowerPC 32-bit ELF Support:
>       PowerPC ELF32.
>       [...]
>
> That's a linker option. GNU ld seems to accept it on every target, but
> usually it doesn't do anything.
>
> GCC 4.1 for example does have -mrelax on at least some targets on which
> --relax does something, but not everywhere, so the portable version
> would seem to be -Wl,--relax.
>
> I can't find a -r option for GCC, but GNU ld has
>
> `-r'
> `--relocatable'
>       Generate relocatable output--i.e., generate an output file that
>       can in turn serve as input to `ld'.  [...]
>
> Again, use -Wl,-r.
>
> Hope this helps.
>
> Kai