1 /*- 2 * Copyright (c) 2017 John Baldwin <jhb@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/types.h> 32 #include <sys/proc.h> 33 #include <sys/ptrace.h> 34 #ifdef VFP 35 #include <machine/vfp.h> 36 #endif 37 38 int 39 cpu_ptrace(struct thread *td, int req, void *addr, int data) 40 { 41 #ifdef VFP 42 mcontext_vfp_t vfp; 43 #endif 44 int error; 45 46 switch (req) { 47 #ifdef VFP 48 case PT_GETVFPREGS: 49 get_vfpcontext(td, &vfp); 50 error = copyout(&vfp, addr, sizeof(vfp)); 51 break; 52 case PT_SETVFPREGS: 53 error = copyin(addr, &vfp, sizeof(vfp)); 54 if (error == 0) 55 set_vfpcontext(td, &vfp); 56 break; 57 #endif 58 default: 59 error = EINVAL; 60 } 61 62 return (error); 63 } 64