[CRIU] [PATCH 3/4] parasite: add macro for getting arch-dependent orig_ax regisister

[Pavel Emelyanov]

On 05/30/2013 01:34 PM, Alexander Kartashov wrote:
> On 05/30/2013 01:18 PM, Chanho Park wrote:
>> diff --git a/parasite-syscall.c b/parasite-syscall.c
>> index 61d159f..c19c5dc 100644
>> --- a/parasite-syscall.c
>> +++ b/parasite-syscall.c
>> @@ -872,8 +872,9 @@ static int parasite_fini_seized(struct parasite_ctl *ctl)
>>   			return -1;
>>   		}
>>   
>> -		pr_debug("%d is going to execute the syscall %lx\n", pid, regs.orig_ax);
>> -		if (regs.orig_ax == __NR_rt_sigreturn) {
>> +		pr_debug("%d is going to execute the syscall %lx\n", pid,
>> +			 REG_ORIG_RES(regs));
>> +		if (REG_ORIG_RES(regs) == __NR_rt_sigreturn) {
>>   			pr_debug("%d was stopped\n", pid);
>>   			break;
>>   		}
> 
> Unfortunately, it's not going to work in this way: the system call number
> is never saved in the field ARM_ORIG_r0, the field ARM_r7 should be used.
> I propose to introduce the macro REG_SIGNR to get the register
> storing a syscall number.
> 


REG_SYSCALL_NR?