Re: next-0630: sparc64: build failed

From: Ingo Molnar
Date: Tue Jul 01 2008 - 16:04:22 EST



* Abhishek Sagar <sagar.abhishek@xxxxxxxxx> wrote:

> Hi Ingo/David,
>
> CONFIG_MCOUNT currently controls the compilation with -pg flag and the
> export of _mcount. But with ftrace, the former is redundant and the
> latter should be made unconditional since _mcount is always defined.
> In which case, does the inlined patch (untested) make sense? It should
> solve the build failure as well.

hm, mcount is the facility - so it makes sense to have that defined.
Here you basically hide CONFIG_MCOUNT:

> -ifeq ($(CONFIG_MCOUNT),y)
> - KBUILD_CFLAGS += -pg
> +ifneq ($(CONFIG_FTRACE),y)
> +ifeq ($(CONFIG_STACK_DEBUG),y)
> +KBUILD_CFLAGS += -pg
> +endif
> endif

via two conditions. I'm not sure that's a win and i found CONFIG_MCOUNT
a logical switch - but it's David's call.

Ingo
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