H. Peter Anvin
hpa****@zytor*****
2018年 8月 26日 (日) 13:56:11 JST
ForkOn 08/25/18 20:16, H. Peter Anvin wrote:
> On 08/25/18 19:38, H. Peter Anvin wrote:
>>
>> If it was worthwhile it would make more sense to at least force this
>> into the rodata section with the string, something like the attached
>> file for an example; however, I have a hunch it doesn't matter.
>>
>
> An even nuttier version which avoids the extra pointer indirection.
> Read it and fear.
>
> -hpa
>
OK, so one more thing, I guess: it is necessary to suppress the tailcall
optimization for _RET_IP_ to make any sense, but that should be pretty
simple:
static inline void notailcall(void)
{
asm volatile("");
}
-hpa