On 2015-12-18, at 6:30 PM, Helge Deller wrote: > + /* Usually we don't have to restore %r20 (the system call number) > + * because it gets loaded in the delay slot of the branch external > + * instruction via the ldi instruction. > + * In some cases a register-to-register copy instruction might have > + * been used instead, in which case we need to copy the syscall > + * number into the source register before returning to userspace. > + */ I'm thinking it might be better to fix syscall() in glibc. The copy could be moved before ble and a nop placed delay slot. Dave -- John David Anglin dave.anglin@xxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
