1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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/types.h> 30 #include <string.h> 31 #include <thread_db.h> 32 33 #include "libpthread_db.h" 34 35 void 36 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 37 { 38 mcontext_t *mc = &uc->uc_mcontext; 39 __greg_t *gr = mc->__gregs; 40 41 gr[_REG_R0] = r->r[0]; 42 gr[_REG_R1] = r->r[1]; 43 gr[_REG_R2] = r->r[2]; 44 gr[_REG_R3] = r->r[3]; 45 gr[_REG_R4] = r->r[4]; 46 gr[_REG_R5] = r->r[5]; 47 gr[_REG_R6] = r->r[6]; 48 gr[_REG_R7] = r->r[7]; 49 gr[_REG_R8] = r->r[8]; 50 gr[_REG_R9] = r->r[9]; 51 gr[_REG_R10] = r->r[10]; 52 gr[_REG_R11] = r->r[11]; 53 gr[_REG_R12] = r->r[12]; 54 gr[_REG_SP] = r->r_sp; 55 gr[_REG_LR] = r->r_lr; 56 gr[_REG_PC] = r->r_pc; 57 gr[_REG_CPSR] = r->r_cpsr; 58 } 59 60 void 61 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 62 { 63 const mcontext_t *mc = &uc->uc_mcontext; 64 65 const __greg_t *gr = mc->__gregs; 66 67 r->r[0] = gr[_REG_R0]; 68 r->r[1] = gr[_REG_R1]; 69 r->r[2] = gr[_REG_R2]; 70 r->r[3] = gr[_REG_R3]; 71 r->r[4] = gr[_REG_R4]; 72 r->r[5] = gr[_REG_R5]; 73 r->r[6] = gr[_REG_R6]; 74 r->r[7] = gr[_REG_R7]; 75 r->r[8] = gr[_REG_R8]; 76 r->r[9] = gr[_REG_R9]; 77 r->r[10] = gr[_REG_R10]; 78 r->r[11] = gr[_REG_R11]; 79 r->r[12] = gr[_REG_R12]; 80 r->r_sp = gr[_REG_SP]; 81 r->r_lr = gr[_REG_LR]; 82 r->r_pc = gr[_REG_PC]; 83 r->r_cpsr = gr[_REG_CPSR]; 84 } 85 86 void 87 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc) 88 { 89 mcontext_vfp_t *mc_vfp; 90 91 mc_vfp = uc->uc_mcontext.mc_vfp_ptr; 92 93 if (mc_vfp != NULL) 94 memcpy(mc_vfp, r, sizeof(*r)); 95 } 96 97 void 98 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 99 { 100 mcontext_vfp_t *mc_vfp; 101 102 mc_vfp = uc->uc_mcontext.mc_vfp_ptr; 103 104 if (mc_vfp != NULL) 105 memcpy(r, &mc_vfp, sizeof(*r)); 106 } 107 108 void 109 pt_md_init(void) 110 { 111 } 112 113 int 114 pt_reg_sstep(struct reg *reg __unused, int step __unused) 115 { 116 117 /* XXX */ 118 return (0); 119 } 120