linux-kernel - Re: [2.6 patch] blackfin: "extern inline" -> "static inline"

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Message-ID: <20071025204748.GW30533@stusta.de>
Date:	Thu, 25 Oct 2007 22:47:48 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Mike Frysinger <vapier.adi@...il.com>,
	Jie Zhang <jzhang.linux@...il.com>, bryan.wu@...log.com,
	linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] blackfin: "extern inline" -> "static inline"

On Thu, Oct 25, 2007 at 01:28:04PM -0700, H. Peter Anvin wrote:
> Mike Frysinger wrote:
>>> Do you have any example for your claim "to get gcc to not inline things
>>> when building debug versions"?
>> $ cat test.c
>> __attribute__((always_inline)) int foo(void) { return 0; }
>> int main(void){ return foo(); }
>> $ gcc -g test.c -o test
>> $ readelf -s test | grep FUNC | grep -v _
>>     61: 00000000004004b8    11 FUNC    GLOBAL DEFAULT   13 foo
>>     68: 00000000004004c3    11 FUNC    GLOBAL DEFAULT   13 main
>> looks pretty straightforward to me
>> -mike
>
> For "debug version" meaning -O0, this is true.

No, "inline __attribute__((always_inline))" works with -O0.

He gets a function emitted since his "foo" is not static.

> 	-hpa

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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