131  * does not yet catch signals sent when the child dies.
354 static int putreg(struct task_struct *child,  in putreg()  argument
364 		return set_segment_reg(child, offset, value);  in putreg()
367 		return set_flags(child, value);  in putreg()
373 		x86_fsbase_write_task(child, value);  in putreg()
378 		x86_gsbase_write_task(child, value);  in putreg()
383 	*pt_regs_access(task_pt_regs(child), offset) = value;  in putreg()
698 void ptrace_disable(struct task_struct *child)  in ptrace_disable()  argument
700 	user_disable_single_step(child);  in ptrace_disable()
710 long arch_ptrace(struct task_struct *child, long request,  in arch_ptrace()  argument
735 			tmp = getreg(child, addr);  in arch_ptrace()
739 			tmp = ptrace_get_debugreg(child, addr / sizeof(data));  in arch_ptrace()
751 			ret = putreg(child, addr, data);  in arch_ptrace()
755 			ret = ptrace_set_debugreg(child,  in arch_ptrace()
760 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */  in arch_ptrace()
761 		return copy_regset_to_user(child,  in arch_ptrace()
767 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */  in arch_ptrace()
768 		return copy_regset_from_user(child,  in arch_ptrace()
774 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */  in arch_ptrace()
775 		return copy_regset_to_user(child,  in arch_ptrace()
781 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */  in arch_ptrace()
782 		return copy_regset_from_user(child,  in arch_ptrace()
789 	case PTRACE_GETFPXREGS:	/* Get the child extended FPU state. */  in arch_ptrace()
790 		return copy_regset_to_user(child, &user_x86_32_view,  in arch_ptrace()
795 	case PTRACE_SETFPXREGS:	/* Set the child extended FPU state. */  in arch_ptrace()
796 		return copy_regset_from_user(child, &user_x86_32_view,  in arch_ptrace()
806 		ret = do_get_thread_area(child, addr,  in arch_ptrace()
813 		ret = do_set_thread_area(child, addr,  in arch_ptrace()
823 		ret = do_arch_prctl_64(child, data, addr);  in arch_ptrace()
828 		ret = ptrace_request(child, request, addr, data);  in arch_ptrace()
848 		return set_segment_reg(child,				\
853 static int putreg32(struct task_struct *child, unsigned regno, u32 value)  in putreg32()  argument
855 	struct pt_regs *regs = task_pt_regs(child);  in putreg32()
872 		ret = set_segment_reg(child,  in putreg32()
876 			child->thread.fsbase =  in putreg32()
877 				x86_fsgsbase_read_task(child, value);  in putreg32()
881 		ret = set_segment_reg(child,  in putreg32()
885 			child->thread.gsbase =  in putreg32()
886 				x86_fsgsbase_read_task(child, value);  in putreg32()
913 		if (syscall_get_nr(child, regs) != -1)  in putreg32()
914 			child->thread_info.status |= TS_I386_REGS_POKED;  in putreg32()
918 		return set_flags(child, value);  in putreg32()
923 		return ptrace_set_debugreg(child, regno / 4, value);  in putreg32()
947 		*val = get_segment_reg(child,				\
951 static int getreg32(struct task_struct *child, unsigned regno, u32 *val)  in getreg32()  argument
953 	struct pt_regs *regs = task_pt_regs(child);  in getreg32()
976 		*val = get_flags(child);  in getreg32()
982 		*val = ptrace_get_debugreg(child, regno / 4);  in getreg32()
1044 static long ia32_arch_ptrace(struct task_struct *child, compat_long_t request,  in ia32_arch_ptrace()  argument
1055 		ret = getreg32(child, addr, &val);  in ia32_arch_ptrace()
1061 		ret = putreg32(child, addr, data);  in ia32_arch_ptrace()
1064 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */  in ia32_arch_ptrace()
1065 		return copy_regset_to_user(child, &user_x86_32_view,  in ia32_arch_ptrace()
1070 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */  in ia32_arch_ptrace()
1071 		return copy_regset_from_user(child, &user_x86_32_view,  in ia32_arch_ptrace()
1076 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */  in ia32_arch_ptrace()
1077 		return copy_regset_to_user(child, &user_x86_32_view,  in ia32_arch_ptrace()
1082 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */  in ia32_arch_ptrace()
1084 			child, &user_x86_32_view, REGSET_FP,  in ia32_arch_ptrace()
1087 	case PTRACE_GETFPXREGS:	/* Get the child extended FPU state. */  in ia32_arch_ptrace()
1088 		return copy_regset_to_user(child, &user_x86_32_view,  in ia32_arch_ptrace()
1093 	case PTRACE_SETFPXREGS:	/* Set the child extended FPU state. */  in ia32_arch_ptrace()
1094 		return copy_regset_from_user(child, &user_x86_32_view,  in ia32_arch_ptrace()
1101 		return arch_ptrace(child, request, addr, data);  in ia32_arch_ptrace()
1104 		return compat_ptrace_request(child, request, addr, data);  in ia32_arch_ptrace()
1112 static long x32_arch_ptrace(struct task_struct *child,  in x32_arch_ptrace()  argument
1134 			tmp = getreg(child, addr);  in x32_arch_ptrace()
1138 			tmp = ptrace_get_debugreg(child, addr / sizeof(data));  in x32_arch_ptrace()
1154 			ret = putreg(child, addr, data);  in x32_arch_ptrace()
1158 			ret = ptrace_set_debugreg(child,  in x32_arch_ptrace()
1163 	case PTRACE_GETREGS:	/* Get all gp regs from the child. */  in x32_arch_ptrace()
1164 		return copy_regset_to_user(child,  in x32_arch_ptrace()
1170 	case PTRACE_SETREGS:	/* Set all gp regs in the child. */  in x32_arch_ptrace()
1171 		return copy_regset_from_user(child,  in x32_arch_ptrace()
1177 	case PTRACE_GETFPREGS:	/* Get the child FPU state. */  in x32_arch_ptrace()
1178 		return copy_regset_to_user(child,  in x32_arch_ptrace()
1184 	case PTRACE_SETFPREGS:	/* Set the child FPU state. */  in x32_arch_ptrace()
1185 		return copy_regset_from_user(child,  in x32_arch_ptrace()
1192 		return compat_ptrace_request(child, request, addr, data);  in x32_arch_ptrace()
1200 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,  in compat_arch_ptrace()  argument
1205 		return x32_arch_ptrace(child, request, caddr, cdata);  in compat_arch_ptrace()
1208 	return ia32_arch_ptrace(child, request, caddr, cdata);  in compat_arch_ptrace()