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
ld_support_init()55 ld_support_init()
56 {
57 depend_file = getenv(SUNPRO_DEPENDENCIES);
58 }
59
60 static void
prepend_str(Stritem ** list,const char * str)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
ld_file(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_file64(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_atexit(int exit_code)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
ld_atexit64(int exit_code)143 ld_atexit64(int exit_code)
144 {
145 ld_atexit(exit_code);
146 }
147