linux-kernel - Re: Disabling gcc inline operation

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Date:	Mon, 24 Mar 2014 10:33:18 +0100
From:	Arend van Spriel <arend@...adcom.com>
To:	anish singh <anish198519851985@...il.com>,
	LAK <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel-mail <linux-kernel@...r.kernel.org>
Subject: Re: Disabling gcc inline operation

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.

Regards,
Arend

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