Re: [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype

[Simon Holm Thøgersen <odie@cs.aau.dk>]

tor, 06 12 2007 kl. 15:20 -0800, skrev Zach Brown:
> call_indirect() was using the wrong calling convention for the system call
> handlers.  system call handlers would get mixed up arguments.
> 
> Signed-off-by: Zach Brown <zach.brown@oracle.com>
> 
> diff --git a/include/asm-x86/indirect_32.h b/include/asm-x86/indirect_32.h
> index a1b72ac..e3dea8e 100644
> --- a/include/asm-x86/indirect_32.h
> +++ b/include/asm-x86/indirect_32.h
> @@ -15,8 +15,8 @@ struct indirect_registers {
>  
>  static inline long call_indirect(struct indirect_registers *regs)
>  {
> -  extern long (*sys_call_table[]) (__u32, __u32, __u32, __u32, __u32, __u32);
> -
> +	extern asmlinkage long (*sys_call_table[])(long, long, long,
This should be something like below instead, otherwise gcc wont parse
asmlinkage as being an attribute of the function signature.
	extern long (asmlinkage *sys_call_table[])(long, long, long,
I don't now if it has changed with recent gcc versions, this works for
me with 4.2.0.
> +						   long, long, long);
>    return sys_call_table[INDIRECT_SYSCALL(regs)](regs->ebx, regs->ecx,
>  						regs->edx, regs->esi,
>  						regs->edi, regs->ebp);


Simon Holm Thøgersen

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