1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 1998 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma init(ld_support_init) 27 28 #include <stdio.h> 29 #include <unistd.h> 30 #include <stdlib.h> 31 #include <string.h> 32 #include <libelf.h> 33 #include <sys/param.h> 34 #include <link.h> 35 36 #define SUNPRO_DEPENDENCIES "SUNPRO_DEPENDENCIES" 37 38 /* 39 * Linked list of strings - used to keep lists of names 40 * of directories or files. 41 */ 42 43 struct Stritem { 44 char * str; 45 void * next; 46 }; 47 48 typedef struct Stritem Stritem; 49 50 static char * depend_file = NULL; 51 static Stritem * list = NULL; 52 53 54 void mk_state_init() 55 { 56 depend_file = getenv(SUNPRO_DEPENDENCIES); 57 } /* mk_state_init() */ 58 59 60 61 static void 62 prepend_str(Stritem **list, const char * str) 63 { 64 Stritem * new; 65 char * newstr; 66 67 if (!(new = calloc(1, sizeof (Stritem)))) { 68 perror("libmakestate.so"); 69 return; 70 } /* if */ 71 72 if (!(newstr = malloc(strlen(str) + 1))) { 73 perror("libmakestate.so"); 74 return; 75 } /* if */ 76 77 new->str = strcpy(newstr, str); 78 new->next = *list; 79 *list = new; 80 81 } /* prepend_str() */ 82 83 84 void 85 mk_state_collect_dep(const char * file) 86 { 87 /* 88 * SUNPRO_DEPENDENCIES wasn't set, we don't collect .make.state 89 * information. 90 */ 91 if (!depend_file) 92 return; 93 94 prepend_str(&list, file); 95 96 } /* mk_state_collect_dep() */ 97 98 99 void 100 mk_state_update_exit() 101 { 102 Stritem * cur; 103 char lockfile[MAXPATHLEN], * err, * space, * target; 104 FILE * ofp; 105 extern char * file_lock(char *, char *, int); 106 107 if (!depend_file) 108 return; 109 110 if ((space = strchr(depend_file, ' ')) == NULL) 111 return; 112 *space = '\0'; 113 target = &space[1]; 114 115 (void) sprintf(lockfile, "%s.lock", depend_file); 116 if ((err = file_lock(depend_file, lockfile, 0))) { 117 (void) fprintf(stderr, "%s\n", err); 118 return; 119 } /* if */ 120 121 if (!(ofp = fopen(depend_file, "a"))) 122 return; 123 124 if (list) 125 (void) fprintf(ofp, "%s: ", target); 126 127 for (cur = list; cur; cur = cur->next) 128 (void) fprintf(ofp, " %s", cur->str); 129 130 (void) fputc('\n', ofp); 131 132 (void) fclose(ofp); 133 (void) unlink(lockfile); 134 *space = ' '; 135 136 } /* mk_state_update_exit() */ 137 138 static void 139 /* LINTED static unused */ 140 ld_support_init() 141 { 142 mk_state_init(); 143 144 } /* ld_support_init() */ 145 146 /* ARGSUSED */ 147 void 148 ld_file(const char * file, const Elf_Kind ekind, int flags, Elf *elf) 149 { 150 if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED))) 151 return; 152 153 mk_state_collect_dep(file); 154 155 } /* ld_file */ 156 157 void 158 ld_atexit(int exit_code) 159 { 160 if (exit_code) 161 return; 162 163 mk_state_update_exit(); 164 165 } /* ld_atexit() */ 166 167 /* 168 * Supporting 64-bit objects 169 */ 170 void 171 ld_file64(const char * file, const Elf_Kind ekind, int flags, Elf *elf) 172 { 173 if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED))) 174 return; 175 176 mk_state_collect_dep(file); 177 178 } /* ld_file64 */ 179 180 void 181 ld_atexit64(int exit_code) 182 { 183 if (exit_code) 184 return; 185 186 mk_state_update_exit(); 187 188 } /* ld_atexit64() */ 189