diff options
| author | Matt Fleming <matt.fleming@intel.com> | 2012-11-20 13:07:46 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-03 11:37:55 -0800 |
| commit | 5e0edcfdac8ef57ef873f75de0780860745942ed (patch) | |
| tree | 10d7458e812a50ef17c7cf84a49f703a49b4baf2 /arch/x86 | |
| parent | e7a733a0c023a9f32c6bf3d34c2f954085ebc322 (diff) | |
x86, efi: Fix processor-specific memcpy() build error
commit 0f905a43ce955b638139bd84486194770a6a2c08 upstream.
Building for Athlon/Duron/K7 results in the following build error,
arch/x86/boot/compressed/eboot.o: In function `__constant_memcpy3d':
eboot.c:(.text+0x385): undefined reference to `_mmx_memcpy'
arch/x86/boot/compressed/eboot.o: In function `efi_main':
eboot.c:(.text+0x1a22): undefined reference to `_mmx_memcpy'
because the boot stub code doesn't link with the kernel proper, and
therefore doesn't have access to the 3DNow version of memcpy. So,
follow the example of misc.c and #undef memcpy so that we use the
version provided by misc.c.
See https://bugzilla.kernel.org/show_bug.cgi?id=50391
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: Ryan Underwood <nemesis@icequake.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/boot/compressed/eboot.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index b3e0227df2c9..90201aace72a 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -12,6 +12,8 @@ #include <asm/setup.h> #include <asm/desc.h> +#undef memcpy /* Use memcpy from misc.c */ + #include "eboot.h" static efi_system_table_t *sys_table; |