[Top] [All Lists]

Re: ABI question

To: Thomas Koeller <>
Subject: Re: ABI question
From: "Maciej W. Rozycki" <>
Date: Tue, 27 Jul 2004 15:05:02 +0200 (CEST)
In-reply-to: <>
Original-recipient: rfc822;
References: <>
On Tue, 27 Jul 2004, Thomas Koeller wrote:

> for 2.6 kernels, arch/mips/Makefile contains the following lines:
> ifdef CONFIG_MIPS64
> gcc-abi                       = 64
> gas-abi                       = 32
> tool-prefix           = $(64bit-tool-prefix)
> UTS_MACHINE           := mips64
> endif
> Is it intentional that gcc-abi and gas-abi are different? This

 It is -- some people want to use 32-bit pointers within Linux, to 
conserve memory.  It seems to work with older tools, but I've never tried 

> results in '-Wa,-32' appearing on gcc's command line, causing
> the asembler to complain:
> Error: -mgp64 used with a 32-bit ABI
> If I change gas-abi to 64, this error goes away.

 You may run `make "gas-abi=64" <whatever>' as a workaround.  I'm going to 
make it selectable in the configuration one day.


<Prev in Thread] Current Thread [Next in Thread>
  • ABI question, Thomas Koeller
    • Re: ABI question, Maciej W. Rozycki <=