CVS/SVN binutils and gcc on MacOS X?

CVS/SVN binutils and gcc on MacOS X?

[Stefan Dösinger]

Hi,
I tried to install binutils from CVS and the gcc SVN code on my mac to test my 
msvc_prologue work there, but I ran into an interesting problem:

When using the SVN gcc with my own as, I cannot compile any files:
Assembler messages:
Fatal error: Invalid listing option `r'

This can happen when compiling something manually, or during gcc bootstrap. 
The build type is i386-apple-darwin9.8.0.

Using my own gcc with the system assembler works. Using the system gcc with my 
as build works as well. But my own as and gcc together fail. Google wasn't 
much help unfortunately.

Is this a known problem? Am I doing something wrong here? Do I need any 
special Darwin patches for as or gcc?

Thanks,
Stefan

Re: CVS/SVN binutils and gcc on MacOS X?

[Andreas Tobler]

Stefan Dösinger wrote:

> I tried to install binutils from CVS and the gcc SVN code on my mac to test my 
> msvc_prologue work there, but I ran into an interesting problem:

binutils for MacOSX is a no-go.

> When using the SVN gcc with my own as, I cannot compile any files:
> Assembler messages:
> Fatal error: Invalid listing option `r'
> 
> This can happen when compiling something manually, or during gcc bootstrap. 
> The build type is i386-apple-darwin9.8.0.
> 
> Using my own gcc with the system assembler works. Using the system gcc with my 
> as build works as well. But my own as and gcc together fail. Google wasn't 
> much help unfortunately.

binutils 'as' does not know the magic of mach-o.

> Is this a known problem? Am I doing something wrong here? Do I need any 
> special Darwin patches for as or gcc?

No, you don't do anything wrong. It is simply not supported, the 
binutils from gnu.

You can rely on gcc being able to work with the MacOS-X 'binutils' aka: 
ld, as. But don't try to build it for yourself. It's somehow like sparc 
solaris, rely on the systems as/ld.

Regards,
Andreas

Re: CVS/SVN binutils and gcc on MacOS X?

[Stefan Dösinger]

Am Friday 04 September 2009 23:35:55 schrieb Andreas Tobler:
> No, you don't do anything wrong. It is simply not supported, the
> binutils from gnu.
>
> You can rely on gcc being able to work with the MacOS-X 'binutils' aka:
> ld, as. But don't try to build it for yourself. It's somehow like sparc
> solaris, rely on the systems as/ld.
Drats, that's what I was afraid of :-(

Unfortunately I need support for the swap suffix in as, so using the system 
binaries is not an option. Is the only thing I can do to find the source of 
the as version, backport the swap suffix and hope for the best?

Re: CVS/SVN binutils and gcc on MacOS X?

[Stefan Dösinger]

Am Friday 04 September 2009 23:50:11 schrieb Stefan Dösinger:
> Unfortunately I need support for the swap suffix in as, so using the system
> binaries is not an option. Is the only thing I can do to find the source of
> the as version, backport the swap suffix and hope for the best?
Ok, I grabbed the cctools source and hacked in .s suffix support. Now the 
bootstrap process got beyond the initial configure run. Lets see what happens 
once the compilation is finished...

Re: CVS/SVN binutils and gcc on MacOS X?

[Eric Botcazou]

> You can rely on gcc being able to work with the MacOS-X 'binutils' aka:
> ld, as. But don't try to build it for yourself. It's somehow like sparc
> solaris, rely on the systems as/ld.

Not quite, GNU as works very well on SPARC/Solaris (and probably better than 
the system assembler); GNU ld works too, although it lacks some features and 
using the system linker might indeed be the Right Thing To Do on Solaris.

-- 
Eric Botcazou

Re: CVS/SVN binutils and gcc on MacOS X?

[Tristan Gingold]

On Sep 4, 2009, at 11:06 PM, Stefan Dösinger wrote:

> Hi,
> I tried to install binutils from CVS and the gcc SVN code on my mac  
> to test my
> msvc_prologue work there, but I ran into an interesting problem:
>
> When using the SVN gcc with my own as, I cannot compile any files:
> Assembler messages:
> Fatal error: Invalid listing option `r'

The support in FSF binutils for Darwin is very preliminary: although  
the assembler passes all the gas tests,
it lacks many Mach-O features.  I am working on that in a low priority  
mode.

But contributions are welcome!

Tristan.

Re: CVS/SVN binutils and gcc on MacOS X?

[Ross Ridge]

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Stefan Dösinger writes:
>Unfortunately I need support for the swap suffix in as, so using the system 
>binaries is not an option. Is the only thing I can do to find the source of 
>the as version, backport the swap suffix and hope for the best?

Another option might be a hack like this:

	(define_insn "vswapmov"
	  [(set (match_operand:SI 0 "register_operand" "=r")
	        (match_operand:SI 1 "register_operand" "r"))
	   (unspec_volatile [(const_int 0)] UNSPECV_VSWAPMOV)]
	  ""
        {
	#ifdef HAVE_AS_IX86_SWAP
	  return "movl.s\t{%1, %0|%0, %1}";
	#else
	  if (true_regnum(operand[0]) == DI_REG
	      && true_regnum(operand[1]) == DI_REG)
		return ASM_BYTE "0x8B, 0xFF";
	  if (true_regnum(operand[0]) == BP_REG
	      && true_regnum(operand[1]) == SP_REG)
		return ASM_BYTE "0x8B, 0xEC";
	  gcc_unreachable();
	#endif
	}
	  [(set_attr "length" "2")
	   (set_attr "length_immediate" "0")
	   (set_attr "modrm" "0")])

It's not pretty but you won't be dependent on binutils.

				Ross Ridge