{
unsigned long tmp;
int i, ret = 0;
+ int regno = addr >> 2; /* temporary hack. */
+ unsigned long __user *datap = (unsigned long __user *) data;
switch (request) {
/* read the word at location addr in the USER area. */
case PTRACE_PEEKUSR:
if (addr & 3)
goto out_eio;
- addr >>= 2; /* temporary hack. */
- if (addr >= 0 && addr < 19) {
- tmp = get_reg(child, addr);
- } else if (addr >= 21 && addr < 49) {
- tmp = child->thread.fp[addr - 21];
+ if (regno >= 0 && regno < 19) {
+ tmp = get_reg(child, regno);
+ } else if (regno >= 21 && regno < 49) {
+ tmp = child->thread.fp[regno - 21];
/* Convert internal fpu reg representation
* into long double format
*/
- if (FPU_IS_EMU && (addr < 45) && !(addr % 3))
+ if (FPU_IS_EMU && (regno < 45) && !(regno % 3))
tmp = ((tmp & 0xffff0000) << 15) |
((tmp & 0x0000ffff) << 16);
} else
goto out_eio;
- ret = put_user(tmp, (unsigned long *)data);
+ ret = put_user(tmp, datap);
break;
- case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
+ case PTRACE_POKEUSR:
+ /* write the word at location addr in the USER area */
if (addr & 3)
goto out_eio;
- addr >>= 2; /* temporary hack. */
- if (addr == PT_SR) {
+ if (regno == PT_SR) {
data &= SR_MASK;
data |= get_reg(child, PT_SR) & ~SR_MASK;
}
- if (addr >= 0 && addr < 19) {
- if (put_reg(child, addr, data))
+ if (regno >= 0 && regno < 19) {
+ if (put_reg(child, regno, data))
goto out_eio;
- } else if (addr >= 21 && addr < 48) {
+ } else if (regno >= 21 && regno < 48) {
/* Convert long double format
* into internal fpu reg representation
*/
- if (FPU_IS_EMU && (addr < 45) && !(addr % 3)) {
+ if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) {
data <<= 15;
data = (data & 0xffff0000) |
((data & 0x0000ffff) >> 1);
}
- child->thread.fp[addr - 21] = data;
+ child->thread.fp[regno - 21] = data;
} else
goto out_eio;
break;
case PTRACE_GETREGS: /* Get all gp regs from the child. */
for (i = 0; i < 19; i++) {
tmp = get_reg(child, i);
- ret = put_user(tmp, (unsigned long *)data);
+ ret = put_user(tmp, datap);
if (ret)
break;
- data += sizeof(unsigned long);
+ datap++;
}
break;
case PTRACE_SETREGS: /* Set all gp regs in the child. */
for (i = 0; i < 19; i++) {
- ret = get_user(tmp, (unsigned long *)data);
+ ret = get_user(tmp, datap);
if (ret)
break;
if (i == PT_SR) {
tmp |= get_reg(child, PT_SR) & ~SR_MASK;
}
put_reg(child, i, tmp);
- data += sizeof(unsigned long);
+ datap++;
}
break;
case PTRACE_GETFPREGS: /* Get the child FPU state. */
- if (copy_to_user((void *)data, &child->thread.fp,
+ if (copy_to_user(datap, &child->thread.fp,
sizeof(struct user_m68kfp_struct)))
ret = -EFAULT;
break;
case PTRACE_SETFPREGS: /* Set the child FPU state. */
- if (copy_from_user(&child->thread.fp, (void *)data,
+ if (copy_from_user(&child->thread.fp, datap,
sizeof(struct user_m68kfp_struct)))
ret = -EFAULT;
break;
case PTRACE_GET_THREAD_AREA:
- ret = put_user(task_thread_info(child)->tp_value,
- (unsigned long __user *)data);
+ ret = put_user(task_thread_info(child)->tp_value, datap);
break;
default: