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From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] nds32: toolchains for building ?
Date: Thu, 10 Nov 2011 21:42:56 -0500	[thread overview]
Message-ID: <201111102142.57775.vapier@gentoo.org> (raw)
In-Reply-To: <CACCg+XNPxv1JqrBR_yY6G4Lx=x8dPoc3B9+FhtRywmgqZ6qkxg@mail.gmail.com>

On Thursday 10 November 2011 21:01:37 Macpaul Lin wrote:
> 2011/11/11 Mike Frysinger:
> > so the ISA version only affects the generated libraries right ?  i can
> > still use any of the compilers to output any ISA version ?
> 
> Unfortunately, wrong.
> 
> ISA will affect the assembly and binary patterns, also some basic
> stack operation.

right, which is why gcc ports have options like -march=, -mcpu=, -mtune=, 
etc...  this way you only need 1 gcc to support all these different ISAs.

nds32le-linux-gcc -march=v0 -c ......
nds32le-linux-gcc -march=v1 -c ......
nds32le-linux-gcc -march=v1f -c ......

what i meant was that you don't have to configure gcc for a specific ISA.
-mike
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  parent reply	other threads:[~2011-11-11  2:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-03 17:58 [U-Boot] nds32: toolchains for building ? Mike Frysinger
2011-11-04  8:24 ` 馬克泡
2011-11-04 22:22   ` Mike Frysinger
2011-11-04 23:20     ` Mike Frysinger
2011-11-05  1:35       ` 馬克泡
2011-11-05 17:04         ` Mike Frysinger
2011-11-10  6:22           ` Macpaul Lin
2011-11-10 16:28             ` Mike Frysinger
2011-11-10 17:01               ` Macpaul Lin
2011-11-10 17:12                 ` Mike Frysinger
2011-11-11  2:01                   ` Macpaul Lin
2011-11-11  2:08                     ` Macpaul Lin
2011-11-11  2:42                     ` Mike Frysinger [this message]
2011-11-11  2:53                       ` Macpaul Lin

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