/*- * Copyright (c) 2005 Doug Rabson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */#include <sys/cdefs.h>__FBSDID("$FreeBSD: src/sys/i386/i386/ptrace_machdep.c,v 1.3.2.1 2005/08/11 14:28:42 tobez Exp $");#include "opt_cpu.h"#include "opt_bss.h"#include <sys/param.h>#include <sys/systm.h>#include <sys/proc.h>#include <sys/ptrace.h>#include <machine/md_var.h>#include <machine/pcb.h>#include <machine/specialreg.h>#if !defined(CPU_DISABLE_SSE) && defined(I686_CPU)#define CPU_ENABLE_SSE#endifintcpu_ptrace(struct thread *td, int req, void *addr, int data){ int error=0; struct ptrace_bss_addrs *bss_addrs;/* machine/ptrace.h: struct ptrace_bss_addrs { int from; int to; };*/#ifdef CPU_ENABLE_SSE if (!cpu_fxsr) return (EINVAL);#endif switch (req) {#ifdef CPU_ENABLE_SSE case PT_GETXMMREGS: error = copyout(&td->td_pcb->pcb_save.sv_xmm, addr, sizeof(td->td_pcb->pcb_save.sv_xmm)); break; case PT_SETXMMREGS: error = copyin(addr, &td->td_pcb->pcb_save.sv_xmm, sizeof(td->td_pcb->pcb_save.sv_xmm)); break;#endif#ifdef BRANCH_SINGLE_STEP case PT_BSSTEP: error = 0; if( data != 0) { td->td_pcb->pcb_flags|=PCB_BRANCH_SINGLE_STEP; } else { td->td_pcb->pcb_flags&=~PCB_BRANCH_SINGLE_STEP; } break; case PT_LASTBRANCH: bss_addrs = addr; error = copyout(&td->td_pcb->pcb_lastbranchfromip, &(bss_addrs->from), sizeof(td->td_pcb->pcb_lastbranchfromip)); error = copyout(&td->td_pcb->pcb_lastbranchfromip, &(bss_addrs->to), sizeof(td->td_pcb->pcb_lastbranchtoip)); break; case PT_LASTEXCEPTION: bss_addrs = addr; error = copyout(&td->td_pcb->pcb_lastexceptionfromip, &(bss_addrs->from), sizeof(td->td_pcb->pcb_lastexceptionfromip)); error = copyout(&td->td_pcb->pcb_lastexceptionfromip, &(bss_addrs->to), sizeof(td->td_pcb->pcb_lastexceptiontoip)); break;#endif default: return (EINVAL); } return (error);}