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 #pragma ident "%Z%%M% %I% %E% SMI" 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 #pragma init(ld_support_init) 37 38 #define SUNPRO_DEPENDENCIES "SUNPRO_DEPENDENCIES" 39 40 /* 41 * Linked list of strings - used to keep lists of names 42 * of directories or files. 43 */ 44 struct Stritem { 45 char *str; 46 void *next; 47 }; 48 49 typedef struct Stritem Stritem; 50 51 static char *depend_file = NULL; 52 static Stritem *list = NULL; 53 54 void 55 ld_support_init() 56 { 57 depend_file = getenv(SUNPRO_DEPENDENCIES); 58 } 59 60 static void 61 prepend_str(Stritem **list, const char *str) 62 { 63 Stritem *new; 64 char *newstr; 65 const char *lib = "libldmake.so"; 66 67 if (!(new = calloc(1, sizeof (Stritem)))) { 68 perror(lib); 69 return; 70 } 71 72 if (!(newstr = malloc(strlen(str) + 1))) { 73 perror(lib); 74 return; 75 } 76 77 new->str = strcpy(newstr, str); 78 new->next = *list; 79 *list = new; 80 81 } 82 83 /* ARGSUSED */ 84 void 85 ld_file(const char *file, const Elf_Kind ekind, int flags, Elf *elf) 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 if ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)) 95 prepend_str(&list, file); 96 } 97 98 void 99 ld_file64(const char *file, const Elf_Kind ekind, int flags, Elf *elf) 100 { 101 ld_file(file, ekind, flags, elf); 102 } 103 104 void 105 ld_atexit(int exit_code) 106 { 107 Stritem *cur; 108 char lockfile[MAXPATHLEN], *err, *space, *target; 109 FILE *ofp; 110 extern char *file_lock(char *, char *, int); 111 112 if (!depend_file || exit_code) 113 return; 114 115 if ((space = strchr(depend_file, ' ')) == NULL) 116 return; 117 *space = '\0'; 118 target = &space[1]; 119 120 (void) snprintf(lockfile, MAXPATHLEN, "%s.lock", depend_file); 121 if ((err = file_lock(depend_file, lockfile, 0))) { 122 (void) fprintf(stderr, "%s\n", err); 123 return; 124 } 125 126 if (!(ofp = fopen(depend_file, "a"))) 127 return; 128 129 if (list) 130 (void) fprintf(ofp, "%s: ", target); 131 132 for (cur = list; cur; cur = cur->next) 133 (void) fprintf(ofp, " %s", cur->str); 134 135 (void) fputc('\n', ofp); 136 137 (void) fclose(ofp); 138 (void) unlink(lockfile); 139 *space = ' '; 140 } 141 142 void 143 ld_atexit64(int exit_code) 144 { 145 ld_atexit(exit_code); 146 } 147