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 52 static int __used 53 dummy_proc_read(void *arg, caddr_t addr, void *buf, size_t size) 54 { 55 return TD_ERR_ERR; 56 } 57 58 static int __used 59 dummy_proc_write(void *arg, caddr_t addr, void *buf, size_t size) 60 { 61 return TD_ERR_ERR; 62 } 63 64 static int __used 65 dummy_proc_lookup(void *arg, const char *sym, caddr_t *addr) 66 { 67 return TD_ERR_ERR; 68 } 69 70 static int __used 71 dummy_proc_regsize(void *arg, int regset, size_t *size) 72 { 73 return TD_ERR_ERR; 74 } 75 76 static int __used 77 dummy_proc_getregs(void *arg, int regset, int lwp, void *buf) 78 { 79 return TD_ERR_ERR; 80 } 81 82 static int __used 83 dummy_proc_setregs(void *arg, int regset, int lwp, void *buf) 84 { 85 return TD_ERR_ERR; 86 } 87 88 /* Minimalistic basic implementation */ 89 90 static int __used 91 basic_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 98 static int __used 99 basic_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 } 105 106 static int __used 107 basic_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