From: Haavard Skinnemoen <hskinnemoen@atmel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] FW: [PATCH][ARM] Rationalize ARM compiler options
Date: Wed, 20 Feb 2008 20:28:06 +0100 [thread overview]
Message-ID: <20080220202806.1af92b8b@siona> (raw)
In-Reply-To: <000501c873ea$745d6b40$c3031c0a@atmel.com>
On Wed, 20 Feb 2008 18:58:27 +0100
"Ulf Samuelsson" <ulf@atmel.com> wrote:
> Looks OK to me, but I never used "call cc-option".
cc-option will try to run the compiler with the option. If the compiler
didn't complain, it evaluates to the option. If it failed, it evaluates
to nothing.
Very useful if you want to introduce new compiler options without
breaking compatibility with old or weird compilers. The Linux build
system uses it all over the place -- I suspect we could prevent quite a
few toolchain incompatibilies by using it more extensively in u-boot as
well.
Of course, it won't help you if the compiler misbehaves in other ways
than just refusing to accept the option.
Haavard
next prev parent reply other threads:[~2008-02-20 19:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-18 9:20 [U-Boot-Users] FW: [PATCH][ARM] Rationalize ARM compiler options Peter Pearse
2008-02-18 11:33 ` Haavard Skinnemoen
2008-02-18 12:19 ` Wolfgang Denk
2008-02-18 23:04 ` Ulf Samuelsson
2008-02-19 12:36 ` Wolfgang Denk
2008-02-20 6:33 ` Ulf Samuelsson
2008-02-20 9:55 ` Haavard Skinnemoen
2008-02-20 17:58 ` Ulf Samuelsson
2008-02-20 19:28 ` Haavard Skinnemoen [this message]
[not found] <011a01c87359$34cbbc70$050514ac@atmel.com>
2008-02-20 9:25 ` Peter Pearse
2008-02-20 17:42 ` Ulf Samuelsson
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