x86/um/ptrace_32.c

52 int putreg(struct task_struct *child, int regno, unsigned long value)
68 		UPT_SYSCALL_NR(&child->thread.regs.regs) = value;
92 		child->thread.regs.regs.gp[HOST_EFLAGS] |= value;
97 	child->thread.regs.regs.gp[reg_offsets[regno]] = value;
101 int poke_user(struct task_struct *child, long addr, long data)
107 		return putreg(child, addr, data);
114 		child->thread.arch.debugregs[addr] = data;
120 unsigned long getreg(struct task_struct *child, int regno)
149 	return mask & child->thread.regs.regs.gp[reg_offsets[regno]];
153 int peek_user(struct task_struct *child, long addr, long data)
162 		tmp = getreg(child, addr);
168 		tmp = child->thread.arch.debugregs[addr];
173 static int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *child)
175 	int err, n, cpu = task_cpu(child);
190 static int set_fpregs(struct user_i387_struct __user *buf, struct task_struct *child)
192 	int n, cpu = task_cpu(child);
203 static int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *child)
205 	int err, n, cpu = task_cpu(child);
219 static int set_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *child)
221 	int n, cpu = task_cpu(child);
232 long subarch_ptrace(struct task_struct *child, long request,
238 	case PTRACE_GETFPREGS: /* Get the child FPU state. */
239 		ret = get_fpregs(datap, child);
241 	case PTRACE_SETFPREGS: /* Set the child FPU state. */
242 		ret = set_fpregs(datap, child);
244 	case PTRACE_GETFPXREGS: /* Get the child FPU state. */
245 		ret = get_fpxregs(datap, child);
247 	case PTRACE_SETFPXREGS: /* Set the child FPU state. */
248 		ret = set_fpxregs(datap, child);