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
mk_state_init()54 void mk_state_init()
55 {
56 depend_file = getenv(SUNPRO_DEPENDENCIES);
57 } /* mk_state_init() */
58
59
60
61 static void
prepend_str(Stritem ** list,const char * str)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
mk_state_collect_dep(const char * file)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
mk_state_update_exit()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 */
ld_support_init()140 ld_support_init()
141 {
142 mk_state_init();
143
144 } /* ld_support_init() */
145
146 /* ARGSUSED */
147 void
ld_file(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_atexit(int exit_code)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
ld_file64(const char * file,const Elf_Kind ekind,int flags,Elf * elf)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
ld_atexit64(int exit_code)181 ld_atexit64(int exit_code)
182 {
183 if (exit_code)
184 return;
185
186 mk_state_update_exit();
187
188 } /* ld_atexit64() */
189