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 * 3. 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/param.h>
35 #include <sysdecode.h>
36 #include "rtld_utrace.h"
39 struct utrace_rtld32 {
46 char name[MAXPATHLEN];
51 print_utrace_rtld(FILE *fp, void *p)
53 struct utrace_rtld *ut = p;
58 case UTRACE_DLOPEN_START:
60 fprintf(fp, "dlopen(%s, ", ut->name);
61 switch (mode & RTLD_MODEMASK) {
63 fprintf(fp, "RTLD_NOW");
66 fprintf(fp, "RTLD_LAZY");
69 fprintf(fp, "%#x", mode & RTLD_MODEMASK);
71 if (mode & RTLD_GLOBAL)
72 fprintf(fp, " | RTLD_GLOBAL");
73 if (mode & RTLD_TRACE)
74 fprintf(fp, " | RTLD_TRACE");
75 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE))
76 fprintf(fp, " | %#x", mode &
77 ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE));
80 case UTRACE_DLOPEN_STOP:
81 fprintf(fp, "%p = dlopen(%s) ref %d", ut->handle, ut->name,
84 case UTRACE_DLCLOSE_START:
85 fprintf(fp, "dlclose(%p) (%s, %d)", ut->handle, ut->name,
88 case UTRACE_DLCLOSE_STOP:
89 fprintf(fp, "dlclose(%p) finished", ut->handle);
91 case UTRACE_LOAD_OBJECT:
92 fprintf(fp, "RTLD: loaded %p @ %p - %p (%s)", ut->handle,
93 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
96 case UTRACE_UNLOAD_OBJECT:
97 fprintf(fp, "RTLD: unloaded %p @ %p - %p (%s)", ut->handle,
98 ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
101 case UTRACE_ADD_RUNDEP:
102 parent = ut->mapbase;
103 fprintf(fp, "RTLD: %p now depends on %p (%s, %d)", parent,
104 ut->handle, ut->name, ut->refcnt);
106 case UTRACE_PRELOAD_FINISHED:
107 fprintf(fp, "RTLD: LD_PRELOAD finished");
109 case UTRACE_INIT_CALL:
110 fprintf(fp, "RTLD: init %p for %p (%s)", ut->mapbase, ut->handle,
113 case UTRACE_FINI_CALL:
114 fprintf(fp, "RTLD: fini %p for %p (%s)", ut->mapbase, ut->handle,
117 case UTRACE_DLSYM_START:
118 fprintf(fp, "RTLD: dlsym(%p, %s)", ut->handle, ut->name);
120 case UTRACE_DLSYM_STOP:
121 fprintf(fp, "RTLD: %p = dlsym(%p, %s)", ut->mapbase, ut->handle,
124 case UTRACE_RTLD_ERROR:
125 fprintf(fp, "RTLD: error: %s\n", ut->name);
134 struct utrace_malloc {
141 struct utrace_malloc32 {
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 struct utrace_rtld ur;
168 struct utrace_rtld32 *pr;
169 struct utrace_malloc um;
170 struct utrace_malloc32 *pm;
172 static const char rtld_utrace_sig[RTLD_UTRACE_SIG_SZ] = RTLD_UTRACE_SIG;
174 if (len == sizeof(struct utrace_rtld) && bcmp(p, rtld_utrace_sig,
175 sizeof(rtld_utrace_sig)) == 0)
176 return (print_utrace_rtld(fp, p));
178 if (len == sizeof(struct utrace_malloc)) {
179 print_utrace_malloc(fp, p);
184 if (len == sizeof(struct utrace_rtld32) && bcmp(p, rtld_utrace_sig,
185 sizeof(rtld_utrace_sig)) == 0) {
187 memset(&ur, 0, sizeof(ur));
188 memcpy(ur.sig, pr->sig, sizeof(ur.sig));
189 ur.event = pr->event;
190 ur.handle = (void *)(uintptr_t)pr->handle;
191 ur.mapbase = (void *)(uintptr_t)pr->mapbase;
192 ur.mapsize = pr->mapsize;
193 ur.refcnt = pr->refcnt;
194 memcpy(ur.name, pr->name, sizeof(ur.name));
195 return (print_utrace_rtld(fp, &ur));
198 if (len == sizeof(struct utrace_malloc32)) {
200 memset(&um, 0, sizeof(um));
201 um.p = pm->p == (uint32_t)-1 ? (void *)(intptr_t)-1 :
202 (void *)(uintptr_t)pm->p;
204 um.r = (void *)(uintptr_t)pm->r;
205 print_utrace_malloc(fp, &um);