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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdlib.h> 30 #include <string.h> 31 #include <libelf.h> 32 #include <sys/param.h> 33 #include <link.h> 34 35 #pragma init(ld_support_init) 36 37 #define SUNPRO_DEPENDENCIES "SUNPRO_DEPENDENCIES" 38 39 /* 40 * Linked list of strings - used to keep lists of names 41 * of directories or files. 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 void 54 ld_support_init() 55 { 56 depend_file = getenv(SUNPRO_DEPENDENCIES); 57 } 58 59 static void 60 prepend_str(Stritem **list, const char *str) 61 { 62 Stritem *new; 63 char *newstr; 64 const char *lib = "libldmake.so"; 65 66 if (!(new = calloc(1, sizeof (Stritem)))) { 67 perror(lib); 68 return; 69 } 70 71 if (!(newstr = malloc(strlen(str) + 1))) { 72 perror(lib); 73 return; 74 } 75 76 new->str = strcpy(newstr, str); 77 new->next = *list; 78 *list = new; 79 80 } 81 82 /* ARGSUSED */ 83 void 84 ld_file(const char *file, const Elf_Kind ekind, int flags, Elf *elf) 85 { 86 /* 87 * SUNPRO_DEPENDENCIES wasn't set, we don't collect .make.state 88 * information. 89 */ 90 if (!depend_file) 91 return; 92 93 if ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)) 94 prepend_str(&list, file); 95 } 96 97 void 98 ld_file64(const char *file, const Elf_Kind ekind, int flags, Elf *elf) 99 { 100 ld_file(file, ekind, flags, elf); 101 } 102 103 void 104 ld_atexit(int exit_code) 105 { 106 Stritem *cur; 107 char lockfile[MAXPATHLEN], *err, *space, *target; 108 FILE *ofp; 109 extern char *file_lock(char *, char *, int); 110 111 if (!depend_file || exit_code) 112 return; 113 114 if ((space = strchr(depend_file, ' ')) == NULL) 115 return; 116 *space = '\0'; 117 target = &space[1]; 118 119 (void) snprintf(lockfile, MAXPATHLEN, "%s.lock", depend_file); 120 if ((err = file_lock(depend_file, lockfile, 0))) { 121 (void) fprintf(stderr, "%s\n", err); 122 return; 123 } 124 125 if (!(ofp = fopen(depend_file, "a"))) 126 return; 127 128 if (list) 129 (void) fprintf(ofp, "%s: ", target); 130 131 for (cur = list; cur; cur = cur->next) 132 (void) fprintf(ofp, " %s", cur->str); 133 134 (void) fputc('\n', ofp); 135 136 (void) fclose(ofp); 137 (void) unlink(lockfile); 138 *space = ' '; 139 } 140 141 void 142 ld_atexit64(int exit_code) 143 { 144 ld_atexit(exit_code); 145 } 146