Mike Crowe wrote: [snip] > We have a function that does some string manipulation (not > particularly dangerous manipulation and I've been through it > carefully) and then calls atol. As expected the prologue of this > function calculates the value of the gp register by applying an offset > to the t9 register which contains the address of the start of the > function like this: > > 47995c: 3c1c0fba lui gp,0xfba Looks weird as an entry point. Normally entries are 8 byte aligned. [snip] > The only user-space reason I can come up with for this happening is if > the caller jumped into this function one instruction late. This seems > unlikely because t9 contains the correct value and the stack looks > fine. Check the value of $ra (e.g. with a gdb breakpoint) after entering the function. Thiemo
