Re: [patch 07/24] x86/traps: Prepare for using DEFINE_IDTENTRY

[Thomas Gleixner]

Alexandre Chartre <alexandre.chartre@xxxxxxxxxx> writes:
> On 2/25/20 11:16 PM, Thomas Gleixner wrote:
>> Prepare for using IDTENTRY to define the C exception/trap entry points. It
>> would be possible to glue this into the existing macro maze, but it's
>> simpler and better to read at the end to just make them distinct. Provide
>> a trivial inline helper to read the trap address.
>> 
>> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> ---
>>   arch/x86/kernel/traps.c |    5 +++++
>>   1 file changed, 5 insertions(+)
>> 
>> --- a/arch/x86/kernel/traps.c
>> +++ b/arch/x86/kernel/traps.c
>> @@ -274,6 +274,11 @@ static void do_error_trap(struct pt_regs
>>   	}
>>   }
>>   
>> +static inline void __user *error_get_trap_addr(struct pt_regs *regs)
>> +{
>> +	return (void __user *)uprobe_get_trap_addr(regs);
>> +}
>> +
>>   #define IP ((void __user *)uprobe_get_trap_addr(regs))
>
> And you will eventually get rid of this IP macro, right?

The whole macro maze will be gone at the end.