2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
37 #include <sysdecode.h>
39 #define UTRACE_DLOPEN_START 1
40 #define UTRACE_DLOPEN_STOP 2
41 #define UTRACE_DLCLOSE_START 3
42 #define UTRACE_DLCLOSE_STOP 4
43 #define UTRACE_LOAD_OBJECT 5
44 #define UTRACE_UNLOAD_OBJECT 6
45 #define UTRACE_ADD_RUNDEP 7
46 #define UTRACE_PRELOAD_FINISHED 8
47 #define UTRACE_INIT_CALL 9
48 #define UTRACE_FINI_CALL 10
49 #define UTRACE_DLSYM_START 11
50 #define UTRACE_DLSYM_STOP 12
53 char sig[4]; /* 'RTLD' */
59 char name[MAXPATHLEN];
63 print_utrace_rtld(FILE *fp, void *p)
65 struct utrace_rtld *ut = p;
70 case UTRACE_DLOPEN_START:
72 fprintf(fp, "dlopen(%s, ", ut->name);
73 switch (mode & RTLD_MODEMASK) {
75 fprintf(fp, "RTLD_NOW");
78 fprintf(fp, "RTLD_LAZY");
81 fprintf(fp, "%#x", mode & RTLD_MODEMASK);
83 if (mode & RTLD_GLOBAL)
84 fprintf(fp, " | RTLD_GLOBAL");
85 if (mode & RTLD_TRACE)
86 fprintf(fp, " | RTLD_TRACE");
87 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE))
88 fprintf(fp, " | %#x", mode &
89 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE));
92 case UTRACE_DLOPEN_STOP:
93 fprintf(fp, "%p = dlopen(%s) ref %d", ut->handle, ut->name,
96 case UTRACE_DLCLOSE_START:
97 fprintf(fp, "dlclose(%p) (%s, %d)", ut->handle, ut->name,
100 case UTRACE_DLCLOSE_STOP:
101 fprintf(fp, "dlclose(%p) finished", ut->handle);
103 case UTRACE_LOAD_OBJECT:
104 fprintf(fp, "RTLD: loaded %p @ %p - %p (%s)", ut->handle,
105 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
108 case UTRACE_UNLOAD_OBJECT:
109 fprintf(fp, "RTLD: unloaded %p @ %p - %p (%s)", ut->handle,
110 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
113 case UTRACE_ADD_RUNDEP:
114 parent = ut->mapbase;
115 fprintf(fp, "RTLD: %p now depends on %p (%s, %d)", parent,
116 ut->handle, ut->name, ut->refcnt);
118 case UTRACE_PRELOAD_FINISHED:
119 fprintf(fp, "RTLD: LD_PRELOAD finished");
121 case UTRACE_INIT_CALL:
122 fprintf(fp, "RTLD: init %p for %p (%s)", ut->mapbase, ut->handle,
125 case UTRACE_FINI_CALL:
126 fprintf(fp, "RTLD: fini %p for %p (%s)", ut->mapbase, ut->handle,
129 case UTRACE_DLSYM_START:
130 fprintf(fp, "RTLD: dlsym(%p, %s)", ut->handle, ut->name);
132 case UTRACE_DLSYM_STOP:
133 fprintf(fp, "RTLD: %p = dlsym(%p, %s)", ut->mapbase, ut->handle,
142 struct utrace_malloc {
149 print_utrace_malloc(FILE *fp, void *p)
151 struct utrace_malloc *ut = p;
153 if (ut->p == (void *)(intptr_t)(-1))
154 fprintf(fp, "malloc_init()");
156 fprintf(fp, "free(%p)", ut->p);
157 else if (ut->p == NULL)
158 fprintf(fp, "%p = malloc(%zu)", ut->r, ut->s);
160 fprintf(fp, "%p = realloc(%p, %zu)", ut->r, ut->p, ut->s);
164 sysdecode_utrace(FILE *fp, void *p, size_t len)
167 if (len == sizeof(struct utrace_rtld) && bcmp(p, "RTLD", 4) == 0) {
168 return (print_utrace_rtld(fp, p));
171 if (len == sizeof(struct utrace_malloc)) {
172 print_utrace_malloc(fp, p);