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

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Date:	Thu, 25 Oct 2007 13:54:25 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Adrian Bunk <bunk@...nel.org>
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"

Adrian Bunk wrote:
> 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.
> 

Oh, right.

	-hpa
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