Re: x86: fix arch/x86/kernel/test_nx.c modular build bug

From: Sam Ravnborg
Date: Sat Feb 02 2008 - 17:36:52 EST


On Thu, Jan 31, 2008 at 01:59:30AM +0000, Linux Kernel Mailing List wrote:
> Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=18fbef9e5242e146fe0264cf719a498785102841
> Commit: 18fbef9e5242e146fe0264cf719a498785102841
> Parent: f034347470e486835ccdcd7a5bb2ceb417be11c4
> Author: Ingo Molnar <mingo@xxxxxxx>
> AuthorDate: Wed Jan 30 23:27:58 2008 +0100
> Committer: Ingo Molnar <mingo@xxxxxxx>
> CommitDate: Wed Jan 30 23:27:58 2008 +0100
>
> x86: fix arch/x86/kernel/test_nx.c modular build bug
>
> fix this modular build bug:
>
> > CC [M] arch/x86/kernel/test_nx.o
> > {standard input}: Assembler messages:
> > {standard input}:58: Error: cannot represent relocation type BFD_RELOC_64
> > {standard input}:59: Error: cannot represent relocation type BFD_RELOC_64
> > make[2]: *** [arch/x86/kernel/test_nx.o] Error 1
> > make[1]: *** [arch/x86/kernel] Error 2
>
> Reported-by: Adrian Bunk <bunk@xxxxxxxxxx>
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
> ---
> arch/x86/kernel/test_nx.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/kernel/test_nx.c b/arch/x86/kernel/test_nx.c
> index 6d7ef11..ae0ef2e 100644
> --- a/arch/x86/kernel/test_nx.c
> +++ b/arch/x86/kernel/test_nx.c
> @@ -91,8 +91,13 @@ static noinline int test_address(void *address)
> ".previous\n"
> ".section __ex_table,\"a\"\n"
> " .align 8\n"
> +#ifdef CONFIG_X86_32
> + " .long 0b\n"
> + " .long 2b\n"
> +#else
> " .quad 0b\n"
> " .quad 2b\n"
> +#endif

This should have used _ASM_PTR from asm.h:

#ifdef CONFIG_X86_32
/* 32 bits */

# define _ASM_PTR " .long "
...
#else
/* 64 bits */

# define _ASM_PTR " .quad "


Sam
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