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Differential D6731 Diff 17628 head/sys/sparc64/sparc64/vm_machdep.c

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head/sys/sparc64/sparc64/vm_machdep.c

Show First 20 Lines • Show All 168 Lines • ▼ Show 20 Linescpu_set_syscall_retval(struct thread *td, int error)
default: default:
td->td_frame->tf_out[0] = SV_ABI_ERRNO(td->td_proc, error); td->td_frame->tf_out[0] = SV_ABI_ERRNO(td->td_proc, error);
td->td_frame->tf_tstate |= TSTATE_XCC_C; td->td_frame->tf_tstate |= TSTATE_XCC_C;
break; break;
} }
} }
void void
cpu_set_upcall(struct thread *td, struct thread *td0) cpu_copy_thread(struct thread *td, struct thread *td0)
{ {
struct trapframe *tf; struct trapframe *tf;
struct frame *fr; struct frame *fr;
struct pcb *pcb; struct pcb *pcb;
bcopy(td0->td_frame, td->td_frame, sizeof(struct trapframe)); bcopy(td0->td_frame, td->td_frame, sizeof(struct trapframe));
pcb = td->td_pcb; pcb = td->td_pcb;
tf = td->td_frame; tf = td->td_frame;
fr = (struct frame *)tf - 1; fr = (struct frame *)tf - 1;
fr->fr_local[0] = (u_long)fork_return; fr->fr_local[0] = (u_long)fork_return;
fr->fr_local[1] = (u_long)td; fr->fr_local[1] = (u_long)td;
fr->fr_local[2] = (u_long)tf; fr->fr_local[2] = (u_long)tf;
pcb->pcb_pc = (u_long)fork_trampoline - 8; pcb->pcb_pc = (u_long)fork_trampoline - 8;
pcb->pcb_sp = (u_long)fr - SPOFF; pcb->pcb_sp = (u_long)fr - SPOFF;
/* Setup to release the spin count in fork_exit(). */ /* Setup to release the spin count in fork_exit(). */
td->td_md.md_spinlock_count = 1; td->td_md.md_spinlock_count = 1;
td->td_md.md_saved_pil = 0; td->td_md.md_saved_pil = 0;
} }
void void
cpu_set_upcall_kse(struct thread *td, void (*entry)(void *), void *arg, cpu_set_upcall(struct thread *td, void (*entry)(void *), void *arg,
stack_t *stack) stack_t *stack)
{ {
struct trapframe *tf; struct trapframe *tf;
uint64_t sp; uint64_t sp;
if (td == curthread) if (td == curthread)
flushw(); flushw();
tf = td->td_frame; tf = td->td_frame;
▲ Show 20 Lines • Show All 146 Lines • ▼ Show 20 Lines
/* /*
* Intercept the return address from a freshly forked process that has NOT * Intercept the return address from a freshly forked process that has NOT
* been scheduled yet. * been scheduled yet.
* *
* This is needed to make kernel threads stay in kernel mode. * This is needed to make kernel threads stay in kernel mode.
*/ */
void void
cpu_set_fork_handler(struct thread *td, void (*func)(void *), void *arg) cpu_fork_kthread_handler(struct thread *td, void (*func)(void *), void *arg)
{ {
struct frame *fp; struct frame *fp;
struct pcb *pcb; struct pcb *pcb;
pcb = td->td_pcb; pcb = td->td_pcb;
fp = (struct frame *)(pcb->pcb_sp + SPOFF); fp = (struct frame *)(pcb->pcb_sp + SPOFF);
fp->fr_local[0] = (u_long)func; fp->fr_local[0] = (u_long)func;
fp->fr_local[1] = (u_long)arg; fp->fr_local[1] = (u_long)arg;
▲ Show 20 Lines • Show All 84 Lines • Show Last 20 Lines