1/* 2 * Copyright (c) 2006-2007, Juniper Networks, Inc. 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 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Juniper Networks nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/lib/libthread_db/arch/mips/libpthread_md.c 351792 2019-09-03 20:19:43Z kevans $"); 32 33#include <sys/types.h> 34#define _WANT_MIPS_REGNUM 35#include <sys/procfs.h> 36#include <ucontext.h> 37#include <string.h> 38#include <thread_db.h> 39#include "libpthread_db.h" 40 41void 42pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 43{ 44 45 memcpy(uc->uc_mcontext.mc_regs, &r->r_regs[ZERO], 46 sizeof(uc->uc_mcontext.mc_regs)); 47 uc->uc_mcontext.mc_pc = r->r_regs[PC]; 48 uc->uc_mcontext.mullo = r->r_regs[MULLO]; 49 uc->uc_mcontext.mulhi = r->r_regs[MULHI]; 50} 51 52void 53pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 54{ 55 memcpy(&r->r_regs[ZERO], uc->uc_mcontext.mc_regs, 56 sizeof(uc->uc_mcontext.mc_regs)); 57 r->r_regs[PC] = uc->uc_mcontext.mc_pc; 58 r->r_regs[MULLO] = uc->uc_mcontext.mullo; 59 r->r_regs[MULHI] = uc->uc_mcontext.mulhi; 60} 61 62void 63pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc) 64{ 65 66 memcpy(uc->uc_mcontext.mc_fpregs, r->r_regs, 67 sizeof(uc->uc_mcontext.mc_fpregs)); 68} 69 70void 71pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 72{ 73 74 memcpy(r->r_regs, uc->uc_mcontext.mc_fpregs, 75 sizeof(uc->uc_mcontext.mc_fpregs)); 76} 77 78void 79pt_md_init(void) 80{ 81 /* Nothing to do */ 82} 83 84int 85pt_reg_sstep(struct reg *reg __unused, int step __unused) 86{ 87 /* 88 * XXX: mips doesnt store single step info in any registers 89 */ 90 return (0); 91} 92