linux-kernel - RE: 2.6.20-rc6-mm1: linker error with arch_setup_additional

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Message-ID: <82e4877d0701280834n75d3d0d3ja7a35d5ea0e7fa4f@mail.gmail.com>
Date:	Sun, 28 Jan 2007 11:34:19 -0500
From:	"Parag Warudkar" <parag.warudkar@...il.com>
To:	thunder7@...all.nl
Cc:	"akpm@...l.org" <akpm@...l.org>, ak@...e.de,
	linux-kernel@...r.kernel.org
Subject: RE: 2.6.20-rc6-mm1: linker error with arch_setup_additional_pages

>CONFIG_BINFMT_ELF=y
># CONFIG_BINFMT_MISC is not set
># CONFIG_IA32_EMULATION is not set

Hm Ok. That's explainable. You don't have CONFIG_IA32_EMULATION set
and arch_setup_additional pages is only defined/exported in
syscall32.c which won't be built in your case. (It should go away if
you set CONFIG_IA32_EMULATION).

Andi - Is arch_setup_additional_pages required for x86_64 without
IA32? If so what should it call (like it calls syscall32_setup_pages
in IA32 case)? If it is not needed I guess we can make it a no-op in
case IA32_EMULATION=n?

linux/interp.h -
#ifdef CONFIG_X86_64 && !defined CONFIG_IA32_EMULATION
static inline int arch_setup_additional_pages(struct linux_binprm *bprm,
                                int executable_stack)
{
        return 0;
}

Perhaps we  need an arch-specific override for interp.h?

Parag
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