1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <dlfcn.h>
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate #include <fcode/private.h>
33*0Sstevel@tonic-gate #include <fcode/log.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate #ifdef DEBUG
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate static void (*trace_fn)(fcode_env_t *);
38*0Sstevel@tonic-gate
39*0Sstevel@tonic-gate void
set_tracer(fcode_env_t * env,void (* tracer)(fcode_env_t *))40*0Sstevel@tonic-gate set_tracer(fcode_env_t *env, void (*tracer)(fcode_env_t *))
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate trace_fn = tracer;
43*0Sstevel@tonic-gate }
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate void
set_level(long lvl)46*0Sstevel@tonic-gate set_level(long lvl)
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate long debug;
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate debug = get_interpreter_debug_level();
51*0Sstevel@tonic-gate set_interpreter_debug_level(debug | lvl);
52*0Sstevel@tonic-gate }
53*0Sstevel@tonic-gate
54*0Sstevel@tonic-gate void
unset_level(long lvl)55*0Sstevel@tonic-gate unset_level(long lvl)
56*0Sstevel@tonic-gate {
57*0Sstevel@tonic-gate long debug;
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate debug = get_interpreter_debug_level();
60*0Sstevel@tonic-gate set_interpreter_debug_level(debug & ~lvl);
61*0Sstevel@tonic-gate }
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate void
enable_trace(fcode_env_t * env)64*0Sstevel@tonic-gate enable_trace(fcode_env_t *env)
65*0Sstevel@tonic-gate {
66*0Sstevel@tonic-gate set_level(DEBUG_TRACING);
67*0Sstevel@tonic-gate }
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate void
enable_stack_trace(fcode_env_t * env)70*0Sstevel@tonic-gate enable_stack_trace(fcode_env_t *env)
71*0Sstevel@tonic-gate {
72*0Sstevel@tonic-gate set_level(DEBUG_TRACE_STACK);
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate void
disable_stack_trace(fcode_env_t * env)76*0Sstevel@tonic-gate disable_stack_trace(fcode_env_t *env)
77*0Sstevel@tonic-gate {
78*0Sstevel@tonic-gate unset_level(DEBUG_TRACE_STACK);
79*0Sstevel@tonic-gate }
80*0Sstevel@tonic-gate
81*0Sstevel@tonic-gate void
disable_trace(fcode_env_t * env)82*0Sstevel@tonic-gate disable_trace(fcode_env_t *env)
83*0Sstevel@tonic-gate {
84*0Sstevel@tonic-gate unset_level(DEBUG_TRACING);
85*0Sstevel@tonic-gate }
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate void
call_trace(fcode_env_t * env)88*0Sstevel@tonic-gate call_trace(fcode_env_t *env)
89*0Sstevel@tonic-gate {
90*0Sstevel@tonic-gate set_level(DEBUG_CALL_METHOD);
91*0Sstevel@tonic-gate }
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate void
no_call_trace(fcode_env_t * env)94*0Sstevel@tonic-gate no_call_trace(fcode_env_t *env)
95*0Sstevel@tonic-gate {
96*0Sstevel@tonic-gate unset_level(DEBUG_CALL_METHOD);
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate void
do_fclib_trace(fcode_env_t * env,void * fn)100*0Sstevel@tonic-gate do_fclib_trace(fcode_env_t *env, void *fn)
101*0Sstevel@tonic-gate {
102*0Sstevel@tonic-gate void *address;
103*0Sstevel@tonic-gate Dl_info dlip;
104*0Sstevel@tonic-gate static char buf[80];
105*0Sstevel@tonic-gate
106*0Sstevel@tonic-gate if (dladdr((void *) fn, &dlip)) {
107*0Sstevel@tonic-gate int offset;
108*0Sstevel@tonic-gate
109*0Sstevel@tonic-gate address = dlsym(RTLD_DEFAULT, dlip.dli_sname);
110*0Sstevel@tonic-gate offset = ((char *) fn) - ((char *) address);
111*0Sstevel@tonic-gate if (offset == 0) {
112*0Sstevel@tonic-gate log_message(MSG_FC_DEBUG, "%s: tracing %s()\n",
113*0Sstevel@tonic-gate dlip.dli_fname, dlip.dli_sname);
114*0Sstevel@tonic-gate } else {
115*0Sstevel@tonic-gate log_message(MSG_FC_DEBUG, "%s: tracing %s%s0x%x()\n",
116*0Sstevel@tonic-gate dlip.dli_fname, dlip.dli_sname,
117*0Sstevel@tonic-gate ((offset < 0) ? "-" : "+"),
118*0Sstevel@tonic-gate ((offset < 0) ? -offset : offset));
119*0Sstevel@tonic-gate }
120*0Sstevel@tonic-gate } else {
121*0Sstevel@tonic-gate log_message(MSG_FC_DEBUG, "do_fclib_trace: <Unknown> %p\n", fn);
122*0Sstevel@tonic-gate }
123*0Sstevel@tonic-gate if (trace_fn)
124*0Sstevel@tonic-gate trace_fn(env);
125*0Sstevel@tonic-gate }
126*0Sstevel@tonic-gate
127*0Sstevel@tonic-gate void
output_step_message(fcode_env_t * env)128*0Sstevel@tonic-gate output_step_message(fcode_env_t *env)
129*0Sstevel@tonic-gate {
130*0Sstevel@tonic-gate log_message(MSG_INFO, "Step keys: <space>, Continue, Forth, Go,"
131*0Sstevel@tonic-gate " Help, Step, Quit\n");
132*0Sstevel@tonic-gate }
133*0Sstevel@tonic-gate
134*0Sstevel@tonic-gate void
enable_step(fcode_env_t * env)135*0Sstevel@tonic-gate enable_step(fcode_env_t *env)
136*0Sstevel@tonic-gate {
137*0Sstevel@tonic-gate output_step_message(env);
138*0Sstevel@tonic-gate set_level(DEBUG_STEPPING);
139*0Sstevel@tonic-gate }
140*0Sstevel@tonic-gate
141*0Sstevel@tonic-gate
142*0Sstevel@tonic-gate void
disable_step(fcode_env_t * env)143*0Sstevel@tonic-gate disable_step(fcode_env_t *env)
144*0Sstevel@tonic-gate {
145*0Sstevel@tonic-gate unset_level(DEBUG_STEPPING);
146*0Sstevel@tonic-gate }
147*0Sstevel@tonic-gate
148*0Sstevel@tonic-gate /*
149*0Sstevel@tonic-gate * Output of state info is done elsewhere
150*0Sstevel@tonic-gate */
151*0Sstevel@tonic-gate int
do_fclib_step(fcode_env_t * env)152*0Sstevel@tonic-gate do_fclib_step(fcode_env_t *env)
153*0Sstevel@tonic-gate {
154*0Sstevel@tonic-gate int c;
155*0Sstevel@tonic-gate fcode_env_t *new_env;
156*0Sstevel@tonic-gate
157*0Sstevel@tonic-gate for (; ; ) {
158*0Sstevel@tonic-gate c = getchar();
159*0Sstevel@tonic-gate if (c != '\n') {
160*0Sstevel@tonic-gate while (getchar() != '\n')
161*0Sstevel@tonic-gate ;
162*0Sstevel@tonic-gate }
163*0Sstevel@tonic-gate switch (c) {
164*0Sstevel@tonic-gate case EOF:
165*0Sstevel@tonic-gate case 'q':
166*0Sstevel@tonic-gate unbug(env);
167*0Sstevel@tonic-gate IP = 0;
168*0Sstevel@tonic-gate return (1);
169*0Sstevel@tonic-gate
170*0Sstevel@tonic-gate case 'c':
171*0Sstevel@tonic-gate debug_set_level(env,
172*0Sstevel@tonic-gate DEBUG_EXEC_TRACE|DEBUG_EXEC_DUMP_DS);
173*0Sstevel@tonic-gate break;
174*0Sstevel@tonic-gate
175*0Sstevel@tonic-gate case 'g':
176*0Sstevel@tonic-gate unbug(env);
177*0Sstevel@tonic-gate break;
178*0Sstevel@tonic-gate
179*0Sstevel@tonic-gate case 'f':
180*0Sstevel@tonic-gate unset_level(DEBUG_STEPPING);
181*0Sstevel@tonic-gate new_env = clone_environment(env, NULL);
182*0Sstevel@tonic-gate do_interact(new_env);
183*0Sstevel@tonic-gate destroy_environment(new_env);
184*0Sstevel@tonic-gate set_level(DEBUG_STEPPING);
185*0Sstevel@tonic-gate continue;
186*0Sstevel@tonic-gate
187*0Sstevel@tonic-gate case ' ':
188*0Sstevel@tonic-gate case '\n':
189*0Sstevel@tonic-gate break;
190*0Sstevel@tonic-gate
191*0Sstevel@tonic-gate case 'd': /* Unimplemented */
192*0Sstevel@tonic-gate case 'u': /* Unimplemented */
193*0Sstevel@tonic-gate default:
194*0Sstevel@tonic-gate output_step_message(env);
195*0Sstevel@tonic-gate continue;
196*0Sstevel@tonic-gate }
197*0Sstevel@tonic-gate break;
198*0Sstevel@tonic-gate }
199*0Sstevel@tonic-gate return (0);
200*0Sstevel@tonic-gate }
201*0Sstevel@tonic-gate
202*0Sstevel@tonic-gate #pragma init(_init)
203*0Sstevel@tonic-gate
204*0Sstevel@tonic-gate static void
_init(void)205*0Sstevel@tonic-gate _init(void)
206*0Sstevel@tonic-gate {
207*0Sstevel@tonic-gate fcode_env_t *env = initial_env;
208*0Sstevel@tonic-gate
209*0Sstevel@tonic-gate ASSERT(env);
210*0Sstevel@tonic-gate NOTICE;
211*0Sstevel@tonic-gate
212*0Sstevel@tonic-gate
213*0Sstevel@tonic-gate FORTH(0, "stack-trace", enable_stack_trace);
214*0Sstevel@tonic-gate FORTH(0, "no-stack-trace", disable_stack_trace);
215*0Sstevel@tonic-gate FORTH(0, "trace-on", enable_trace);
216*0Sstevel@tonic-gate FORTH(0, "trace-off", disable_trace);
217*0Sstevel@tonic-gate FORTH(0, "call-trace", call_trace);
218*0Sstevel@tonic-gate FORTH(0, "no-call-trace", no_call_trace);
219*0Sstevel@tonic-gate FORTH(0, "step-on", enable_step);
220*0Sstevel@tonic-gate FORTH(0, "step-off", disable_step);
221*0Sstevel@tonic-gate }
222*0Sstevel@tonic-gate
223*0Sstevel@tonic-gate #endif
224