On Sat, 8 Sep 2012, Ezequiel Garcia wrote:

> diff --git a/Makefile b/Makefile
> index ddf5be9..df6045a 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -561,6 +561,10 @@ else
>  KBUILD_CFLAGS        += -O2
>  endif
>  
> +ifdef CONFIG_DISABLE_GCC_AUTOMATIC_INLINING
> +KBUILD_CFLAGS        += -fno-inline-small-functions

This isn't the only option that controls automatic inlining of functions, 
see indirect-inlining, inline-functions, and inline-functions-called-once.

> +endif
> +
>  include $(srctree)/arch/$(SRCARCH)/Makefile
>  
>  ifdef CONFIG_READABLE_ASM
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 2403a63..c8fd50f 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1265,6 +1265,17 @@ config LATENCYTOP
>  source mm/Kconfig.debug
>  source kernel/trace/Kconfig
>  
> +config DISABLE_GCC_AUTOMATIC_INLINING
> +     bool "Disable gcc automatic inlining"
> +     depends on TRACING
> +     help
> +       This option tells gcc he's not allowed to inline functions 
> automatically,
> +       when they are not marked as 'inline'.
> +       In turn, this enables to trace an event with an accurate call site.
> +       Of course, the resultant kernel is slower and slightly smaller.
> +
> +       Select this option only if you want to trace call sites accurately.
> +
>  config PROVIDE_OHCI1394_DMA_INIT
>       bool "Remote debugging over FireWire early on boot"
>       depends on PCI && X86
> -- 
> 1.7.8.6
> 
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