linux-kernel - [PATCH -next] x86: fix build error and kconfig for ia32

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Message-ID: <51C0B614.5000708@infradead.org>
Date:	Tue, 18 Jun 2013 12:33:40 -0700
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: [PATCH -next] x86: fix build error and kconfig for ia32_emulation
 and binfmt

From: Randy Dunlap <rdunlap@...radead.org>

Fix kconfig warning and build errors on x86_64 by selecting BINFMT_ELF
when COMPAT_BINFMT_ELF is being selected.

warning: (IA32_EMULATION) selects COMPAT_BINFMT_ELF which has unmet direct dependencies (COMPAT && BINFMT_ELF)

fs/built-in.o: In function `elf_core_dump':
compat_binfmt_elf.c:(.text+0x3e093): undefined reference to `elf_core_extra_phdrs'
compat_binfmt_elf.c:(.text+0x3ebcd): undefined reference to `elf_core_extra_data_size'
compat_binfmt_elf.c:(.text+0x3eddd): undefined reference to `elf_core_write_extra_phdrs'
compat_binfmt_elf.c:(.text+0x3f004): undefined reference to `elf_core_write_extra_data'

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
---
 arch/x86/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20130618.orig/arch/x86/Kconfig
+++ linux-next-20130618/arch/x86/Kconfig
@@ -2273,6 +2273,7 @@ source "fs/Kconfig.binfmt"
 config IA32_EMULATION
 	bool "IA32 Emulation"
 	depends on X86_64
+	select BINFMT_ELF
 	select COMPAT_BINFMT_ELF
 	select HAVE_UID16
 	---help---
--
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