1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007 Olivier Houchard 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/types.h> 33 #include <string.h> 34 #include <thread_db.h> 35 36 #include "libpthread_db.h" 37 38 void 39 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 40 { 41 mcontext_t *mc = &uc->uc_mcontext; 42 __greg_t *gr = mc->__gregs; 43 44 gr[_REG_R0] = r->r[0]; 45 gr[_REG_R1] = r->r[1]; 46 gr[_REG_R2] = r->r[2]; 47 gr[_REG_R3] = r->r[3]; 48 gr[_REG_R4] = r->r[4]; 49 gr[_REG_R5] = r->r[5]; 50 gr[_REG_R6] = r->r[6]; 51 gr[_REG_R7] = r->r[7]; 52 gr[_REG_R8] = r->r[8]; 53 gr[_REG_R9] = r->r[9]; 54 gr[_REG_R10] = r->r[10]; 55 gr[_REG_R11] = r->r[11]; 56 gr[_REG_R12] = r->r[12]; 57 gr[_REG_SP] = r->r_sp; 58 gr[_REG_LR] = r->r_lr; 59 gr[_REG_PC] = r->r_pc; 60 gr[_REG_CPSR] = r->r_cpsr; 61 } 62 63 void 64 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 65 { 66 const mcontext_t *mc = &uc->uc_mcontext; 67 68 const __greg_t *gr = mc->__gregs; 69 70 r->r[0] = gr[_REG_R0]; 71 r->r[1] = gr[_REG_R1]; 72 r->r[2] = gr[_REG_R2]; 73 r->r[3] = gr[_REG_R3]; 74 r->r[4] = gr[_REG_R4]; 75 r->r[5] = gr[_REG_R5]; 76 r->r[6] = gr[_REG_R6]; 77 r->r[7] = gr[_REG_R7]; 78 r->r[8] = gr[_REG_R8]; 79 r->r[9] = gr[_REG_R9]; 80 r->r[10] = gr[_REG_R10]; 81 r->r[11] = gr[_REG_R11]; 82 r->r[12] = gr[_REG_R12]; 83 r->r_sp = gr[_REG_SP]; 84 r->r_lr = gr[_REG_LR]; 85 r->r_pc = gr[_REG_PC]; 86 r->r_cpsr = gr[_REG_CPSR]; 87 } 88 89 void 90 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc) 91 { 92 mcontext_vfp_t *mc_vfp; 93 94 mc_vfp = uc->uc_mcontext.mc_vfp_ptr; 95 96 if (mc_vfp != NULL) 97 memcpy(mc_vfp, r, sizeof(*r)); 98 } 99 100 void 101 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 102 { 103 mcontext_vfp_t *mc_vfp; 104 105 mc_vfp = uc->uc_mcontext.mc_vfp_ptr; 106 107 if (mc_vfp != NULL) 108 memcpy(r, &mc_vfp, sizeof(*r)); 109 } 110 111 void 112 pt_md_init(void) 113 { 114 } 115 116 int 117 pt_reg_sstep(struct reg *reg __unused, int step __unused) 118 { 119 120 /* XXX */ 121 return (0); 122 } 123