1/* $NetBSD: h_common.h,v 1.2 2016/11/19 02:30:54 kamil Exp $ */ 2 3/*- 4 * Copyright (c) 2016 The NetBSD Foundation, Inc. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 30#ifndef H_COMMON_H 31#define H_COMMON_H 32 33#include <sys/cdefs.h> 34#include <dlfcn.h> 35#include <pthread_dbg.h> 36#include <string.h> 37 38#include <atf-c.h> 39 40#define PTHREAD_REQUIRE(x) \ 41 do { \ 42 int ret = (x); \ 43 ATF_REQUIRE_MSG(ret == 0, "%s: %s", #x, strerror(ret)); \ 44 } while (0) 45 46#define PTHREAD_REQUIRE_STATUS(x, v) \ 47 do { \ 48 int ret = (x); \ 49 ATF_REQUIRE_MSG(ret == (v), "%s: %s", #x, strerror(ret)); \ 50 } while (0) 51 52static int __used 53dummy_proc_read(void *arg, caddr_t addr, void *buf, size_t size) 54{ 55 return TD_ERR_ERR; 56} 57 58static int __used 59dummy_proc_write(void *arg, caddr_t addr, void *buf, size_t size) 60{ 61 return TD_ERR_ERR; 62} 63 64static int __used 65dummy_proc_lookup(void *arg, const char *sym, caddr_t *addr) 66{ 67 return TD_ERR_ERR; 68} 69 70static int __used 71dummy_proc_regsize(void *arg, int regset, size_t *size) 72{ 73 return TD_ERR_ERR; 74} 75 76static int __used 77dummy_proc_getregs(void *arg, int regset, int lwp, void *buf) 78{ 79 return TD_ERR_ERR; 80} 81 82static int __used 83dummy_proc_setregs(void *arg, int regset, int lwp, void *buf) 84{ 85 return TD_ERR_ERR; 86} 87 88/* Minimalistic basic implementation */ 89 90static int __used 91basic_proc_read(void *arg, caddr_t addr, void *buf, size_t size) 92{ 93 memcpy(buf, addr, size); 94 95 return TD_ERR_OK; 96} 97 98static int __used 99basic_proc_write(void *arg, caddr_t addr, void *buf, size_t size) 100{ 101 memcpy(addr, buf, size); 102 103 return TD_ERR_OK; 104} 105 106static int __used 107basic_proc_lookup(void *arg, const char *sym, caddr_t *addr) 108{ 109 void *handle; 110 void *symbol; 111 112 ATF_REQUIRE_MSG((handle = dlopen(NULL, RTLD_LOCAL | RTLD_LAZY)) 113 != NULL, "dlopen(3) failed: %s", dlerror()); 114 115 symbol = dlsym(handle, sym); 116 117 ATF_REQUIRE_MSG(dlclose(handle) == 0, "dlclose(3) failed: %s", 118 dlerror()); 119 120 if (!symbol) 121 return TD_ERR_NOSYM; 122 123 *addr = (caddr_t)(uintptr_t)symbol; 124 125 return TD_ERR_OK; 126} 127 128#endif // H_COMMON_H 129