On 23/01/17 15:26, Joshua Kinard wrote: > I am not sure what this lone store-doubleword instruction is exactly doing, > nor > can I locate where in the gcc MIPS code it is being generated from.
It's a stack probe, making sure that there is enough stack space. Its only purpose is to provide a SEGV if there is not enough kernel stack. Look for`-fstack-check' as a GCC argument. Andrew.
