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
ld_support_init()54 ld_support_init()
55 {
56 depend_file = getenv(SUNPRO_DEPENDENCIES);
57 }
58
59 static void
prepend_str(Stritem ** list,const char * str)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
ld_file(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_file64(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_atexit(int exit_code)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
ld_atexit64(int exit_code)142 ld_atexit64(int exit_code)
143 {
144 ld_atexit(exit_code);
145 }
146