/*
* make sure the single-step bit is not set
*/
void user_disable_single_step(struct task_struct *child)
{
#ifndef CONFIG_MN10300_USING_JTAG
struct user *dummy = NULL;
long tmp;
tmp = get_stack_long(child, (unsigned long) &dummy->regs.epsw);
tmp &= ~EPSW_T;
put_stack_long(child, (unsigned long) &dummy->regs.epsw, tmp);
#endif
}
long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
unsigned long tmp;
int ret;
switch (request) {
/* read the word at location addr in the USER area. */
case PTRACE_PEEKUSR:
ret = -EIO;
if ((addr & 3) || addr < 0 ||
addr > sizeof(struct user) - 3)
break;
tmp = 0; /* Default return condition */
if (addr < NR_PTREGS << 2)
tmp = get_stack_long(child,
ptrace_regid_to_frame[addr]);
ret = put_user(tmp, (unsigned long *) data);
break;
/* write the word at location addr in the USER area */
case PTRACE_POKEUSR:
ret = -EIO;
if ((addr & 3) || addr < 0 ||
addr > sizeof(struct user) - 3)
break;
ret = 0;
if (addr < NR_PTREGS << 2)
ret = put_stack_long(child, ptrace_regid_to_frame[addr],
data);
break;
case PTRACE_GETREGS: /* Get all integer regs from the child. */
return copy_regset_to_user(child, &user_mn10300_native_view,
REGSET_GENERAL,
0, NR_PTREGS * sizeof(long),
(void __user *)data);
case PTRACE_SETREGS: /* Set all integer regs in the child. */
return copy_regset_from_user(child, &user_mn10300_native_view,
REGSET_GENERAL,
0, NR_PTREGS * sizeof(long),
(const void __user *)data);
case PTRACE_GETFPREGS: /* Get the child FPU state. */
return copy_regset_to_user(child, &user_mn10300_native_view,
REGSET_FPU,
0, sizeof(struct fpu_state_struct),
(void __user *)data);
case PTRACE_SETFPREGS: /* Set the child FPU state. */
return copy_regset_from_user(child, &user_mn10300_native_view,
REGSET_FPU,
0, sizeof(struct fpu_state_struct),
(const void __user *)data);
default:
ret = ptrace_request(child, request, addr, data);
break;
}
return ret;
}
