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