linux-kernel - Re: Disabling gcc inline operation

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Message-ID: <CAK7N6voRqo5fztqHLM7BLG14GNrMXPu_fpS6weue8hZU5uUJ1w@mail.gmail.com>
Date:	Mon, 24 Mar 2014 14:33:18 -0700
From:	anish singh <anish198519851985@...il.com>
To:	Arend van Spriel <arend@...adcom.com>
Cc:	LAK <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel-mail <linux-kernel@...r.kernel.org>
Subject: Re: Disabling gcc inline operation

On Mon, Mar 24, 2014 at 2:33 AM, Arend van Spriel <arend@...adcom.com> wrote:
> On 23/03/14 23:31, anish singh wrote:
>>
>> Many a time i have got a crash and it is difficult
>> to find out the exact function which crashed
>> because the crash stack doesn't show the "real"
>> function because gcc inlines many functions when
>> ever it desires or when it optimizes for speed.
>>
>> So i don't want gcc to inline any function instead
>> just call the function so that i can see the crash
>> stack of each function called. I just want to do
>> this for debugging. Please let me know how can
>> i do that?
>>
>> What switch command to pass to gcc in the make
>> of linux kernel?
>
>
> You tried to look at gcc.gnu.org, right? Your best options are -O0 and/or
> -Og for debugging purposes.
It worked with -fno-inline
>
> Regards,
> Arend
>
>
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