1331722Seadler/* 2132950Sdavidxu * Copyright (c) 2004 David Xu <davidxu@freebsd.org> 3132332Smarcel * Copyright (c) 2004 Marcel Moolenaar 4132332Smarcel * All rights reserved. 5132332Smarcel * 6132332Smarcel * Redistribution and use in source and binary forms, with or without 7132332Smarcel * modification, are permitted provided that the following conditions 8132332Smarcel * are met: 9132332Smarcel * 10132332Smarcel * 1. Redistributions of source code must retain the above copyright 11132332Smarcel * notice, this list of conditions and the following disclaimer. 12132332Smarcel * 2. Redistributions in binary form must reproduce the above copyright 13132332Smarcel * notice, this list of conditions and the following disclaimer in the 14132332Smarcel * documentation and/or other materials provided with the distribution. 15132332Smarcel * 16132332Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17132332Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18132332Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19132332Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20132332Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21132332Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22132332Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23132332Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24132332Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25132332Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26132332Smarcel */ 27132332Smarcel 28132332Smarcel#include <sys/cdefs.h> 29132332Smarcel__FBSDID("$FreeBSD$"); 30132332Smarcel 31132360Smarcel#include <sys/procfs.h> 32169985Sdelphij#include <string.h> 33181059Smarcel#include <thread_db.h> 34132360Smarcel#include <ucontext.h> 35132360Smarcel 36181059Smarcel#include "libpthread_db.h" 37181059Smarcel 38132332Smarcelvoid 39132332Smarcelpt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 40132332Smarcel{ 41132950Sdavidxu mcontext_t *mc = &uc->uc_mcontext; 42132950Sdavidxu 43132950Sdavidxu mc->mc_rdi = r->r_rdi; 44132950Sdavidxu mc->mc_rsi = r->r_rsi; 45132950Sdavidxu mc->mc_rdx = r->r_rdx; 46132950Sdavidxu mc->mc_rcx = r->r_rcx; 47132950Sdavidxu mc->mc_r8 = r->r_r8; 48132950Sdavidxu mc->mc_r9 = r->r_r9; 49132950Sdavidxu mc->mc_rax = r->r_rax; 50132950Sdavidxu mc->mc_rbx = r->r_rbx; 51132950Sdavidxu mc->mc_rbp = r->r_rbp; 52132950Sdavidxu mc->mc_r10 = r->r_r10; 53132950Sdavidxu mc->mc_r11 = r->r_r11; 54132950Sdavidxu mc->mc_r12 = r->r_r12; 55132950Sdavidxu mc->mc_r13 = r->r_r13; 56132950Sdavidxu mc->mc_r14 = r->r_r14; 57132950Sdavidxu mc->mc_r15 = r->r_r15; 58132950Sdavidxu mc->mc_rip = r->r_rip; 59132950Sdavidxu mc->mc_cs = r->r_cs; 60132950Sdavidxu mc->mc_rflags = r->r_rflags; 61132950Sdavidxu mc->mc_rsp = r->r_rsp; 62132950Sdavidxu mc->mc_ss = r->r_ss; 63132332Smarcel} 64132332Smarcel 65132332Smarcelvoid 66132332Smarcelpt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 67132332Smarcel{ 68132950Sdavidxu const mcontext_t *mc = &uc->uc_mcontext; 69132950Sdavidxu 70132950Sdavidxu r->r_rdi = mc->mc_rdi; 71132950Sdavidxu r->r_rsi = mc->mc_rsi; 72132950Sdavidxu r->r_rdx = mc->mc_rdx; 73132950Sdavidxu r->r_rcx = mc->mc_rcx; 74132950Sdavidxu r->r_r8 = mc->mc_r8; 75132950Sdavidxu r->r_r9 = mc->mc_r9; 76132950Sdavidxu r->r_rax = mc->mc_rax; 77132950Sdavidxu r->r_rbx = mc->mc_rbx; 78132950Sdavidxu r->r_rbp = mc->mc_rbp; 79132950Sdavidxu r->r_r10 = mc->mc_r10; 80132950Sdavidxu r->r_r11 = mc->mc_r11; 81132950Sdavidxu r->r_r12 = mc->mc_r12; 82132950Sdavidxu r->r_r13 = mc->mc_r13; 83132950Sdavidxu r->r_r14 = mc->mc_r14; 84132950Sdavidxu r->r_r15 = mc->mc_r15; 85132950Sdavidxu r->r_rip = mc->mc_rip; 86132950Sdavidxu r->r_cs = mc->mc_cs; 87132950Sdavidxu r->r_rflags = mc->mc_rflags; 88132950Sdavidxu r->r_rsp = mc->mc_rsp; 89132950Sdavidxu r->r_ss = mc->mc_ss; 90132332Smarcel} 91132332Smarcel 92132332Smarcelvoid 93132332Smarcelpt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc) 94132332Smarcel{ 95224684Smarius 96224684Smarius memcpy(&uc->uc_mcontext.mc_fpstate, r, sizeof(*r)); 97132332Smarcel} 98132332Smarcel 99132332Smarcelvoid 100132332Smarcelpt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 101132332Smarcel{ 102224684Smarius 103224684Smarius memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(*r)); 104132332Smarcel} 105132332Smarcel 106132332Smarcelvoid 107132332Smarcelpt_md_init(void) 108132332Smarcel{ 109224684Smarius 110132950Sdavidxu /* Nothing to do */ 111132332Smarcel} 112132332Smarcel 113132332Smarcelint 114132332Smarcelpt_reg_sstep(struct reg *reg, int step) 115132332Smarcel{ 116132950Sdavidxu register_t old; 117132950Sdavidxu 118132950Sdavidxu old = reg->r_rflags; 119132950Sdavidxu if (step) 120132950Sdavidxu reg->r_rflags |= 0x0100; 121132950Sdavidxu else 122132950Sdavidxu reg->r_rflags &= ~0x0100; 123132950Sdavidxu return (old != reg->r_rflags); /* changed ? */ 124132332Smarcel} 125