Patchwork [30/50] x86: fix build error and kconfig for ia32_emulation and binfmt

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Submitter Luis Henriques
Date July 2, 2013, 11:07 a.m.
Message ID <>
Download mbox | patch
Permalink /patch/256361/
State New
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Luis Henriques - July 2, 2013, 11:07 a.m. -stable review patch.  If anyone has any objections, please let me know.


From: Randy Dunlap <>

commit d1603990ea626668c78527376d9ec084d634202d upstream.

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'

[ hpa: This was sent to me for -next but it is a low risk build fix ]

Signed-off-by: Randy Dunlap <>
Signed-off-by: H. Peter Anvin <>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <>
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)


diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b2b22a6..eebd0d9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2150,6 +2150,7 @@  source "fs/Kconfig.binfmt"
 config IA32_EMULATION
 	bool "IA32 Emulation"
 	depends on X86_64
+	select BINFMT_ELF
 	  Include code to run legacy 32-bit programs under a