1/*
2 * Copyright 1998 Sean Eric Fagan
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Sean Eric Fagan
15 * 4. Neither the name of the author may be used to endorse or promote
16 * products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef lint
33static const char rcsid[] =
| 1/*
2 * Copyright 1998 Sean Eric Fagan
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Sean Eric Fagan
15 * 4. Neither the name of the author may be used to endorse or promote
16 * products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef lint
33static const char rcsid[] =
|
35#endif /* not lint */
36
37/*
38 * FreeBSD/sparc64-specific system call handling. This is probably the most
39 * complex part of the entire truss program, although I've got lots of
40 * it handled relatively cleanly now. The system call names are generated
41 * automatically, thanks to /usr/src/sys/kern/syscalls.master. The
42 * names used for the various structures are confusing, I sadly admit.
43 *
44 * This file is almost nothing more than a slightly-edited i386-fbsd.c.
45 */
46
47#include <sys/types.h>
48#include <sys/ptrace.h>
49#include <sys/syscall.h>
50
51#include <machine/frame.h>
52#include <machine/reg.h>
53
54#include <err.h>
55#include <errno.h>
56#include <fcntl.h>
57#include <signal.h>
58#include <stddef.h>
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <time.h>
63#include <unistd.h>
64
65#include "truss.h"
66#include "syscall.h"
67#include "extern.h"
68
69#include "syscalls.h"
70
71static int nsyscalls = nitems(syscallnames);
72
73/*
74 * This is what this particular file uses to keep track of a system call.
75 * It is probably not quite sufficient -- I can probably use the same
76 * structure for the various syscall personalities, and I also probably
77 * need to nest system calls (for signal handlers).
78 *
79 * 'struct syscall' describes the system call; it may be NULL, however,
80 * if we don't know about this particular system call yet.
81 */
82struct freebsd_syscall {
83 struct syscall *sc;
84 const char *name;
85 int number;
86 unsigned long *args;
87 int nargs; /* number of arguments -- *not* number of words! */
88 char **s_args; /* the printable arguments */
89};
90
91static struct freebsd_syscall *
92alloc_fsc(void)
93{
94
95 return (malloc(sizeof(struct freebsd_syscall)));
96}
97
98/* Clear up and free parts of the fsc structure. */
99static void
100free_fsc(struct freebsd_syscall *fsc)
101{
102 int i;
103
104 free(fsc->args);
105 if (fsc->s_args) {
106 for (i = 0; i < fsc->nargs; i++)
107 free(fsc->s_args[i]);
108 free(fsc->s_args);
109 }
110 free(fsc);
111}
112
113/*
114 * Called when a process has entered a system call. nargs is the
115 * number of words, not number of arguments (a necessary distinction
116 * in some cases). Note that if the STOPEVENT() code in sparc64/sparc64/trap.c
117 * is ever changed these functions need to keep up.
118 */
119
120void
121mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
122{
123 struct ptrace_io_desc iorequest;
124 struct reg regs;
125 struct freebsd_syscall *fsc;
126 struct syscall *sc;
127 lwpid_t tid;
128 int i, syscall_num;
129 int indir; /* indirect system call */
130
131 tid = trussinfo->curthread->tid;
132
133 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
134 fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
135 return;
136 }
137
138 indir = 0;
139 syscall_num = regs.r_regs[V0];
140 if (syscall_num == SYS_syscall) {
141 indir = 1;
142 syscall_num = regs.r_regs[A0];
143 }
144
145 fsc = alloc_fsc();
146 if (fsc == NULL)
147 return;
148 fsc->number = syscall_num;
149 fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
150 NULL : syscallnames[syscall_num];
151 if (!fsc->name) {
152 fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
153 syscall_num);
154 }
155
156 if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
157 (strcmp(fsc->name, "fork") == 0 ||
158 strcmp(fsc->name, "pdfork") == 0 ||
159 strcmp(fsc->name, "rfork") == 0 ||
160 strcmp(fsc->name, "vfork") == 0))
161 trussinfo->curthread->in_fork = 1;
162
163 if (nargs == 0)
164 return;
165
166 fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
167#if 0 // XXX
168 iorequest.piod_op = PIOD_READ_D;
169 iorequest.piod_offs = (void *)parm_offset;
170 iorequest.piod_addr = fsc->args;
171 iorequest.piod_len = (1 + nargs) * sizeof(unsigned long);
172 ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
173 if (iorequest.piod_len == 0)
174 return;
175#else
176 iorequest.piod_op = PIOD_READ_D;
177#endif
178
179 switch (nargs) {
180 default:
181 /*
182 * The OS doesn't seem to allow more than 10 words of
183 * parameters (yay!). So we shouldn't be here.
184 */
185 warn("More than 10 words (%d) of arguments!\n", nargs);
186 break;
187 case 10:
188 case 9:
189 case 8:
190 case 7:
191 case 6:
192 case 5:
193 /*
194 * If there are 7-10 words of arguments, they are placed
195 * on the stack, as is normal for other processors.
196 * The fall-through for all of these is deliberate!!!
197 */
198 // XXX BAD constant used here
199 iorequest.piod_op = PIOD_READ_D;
200 iorequest.piod_offs = (void *)(regs.r_regs[SP] +
201 4 * sizeof(uint32_t));
202 iorequest.piod_addr = &fsc->args[4];
203 iorequest.piod_len = (nargs - 4) * sizeof(fsc->args[0]);
204 ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
205 if (iorequest.piod_len == 0)
206 return;
207 case 4: fsc->args[3] = regs.r_regs[A3];
208 case 3: fsc->args[2] = regs.r_regs[A2];
209 case 2: fsc->args[1] = regs.r_regs[A1];
210 case 1: fsc->args[0] = regs.r_regs[A0];
211 case 0: break;
212 }
213 if (indir) {
214 memmove(&fsc->args[0], &fsc->args[1],
215 (nargs - 1) * sizeof(fsc->args[0]));
216 }
217
218 sc = get_syscall(fsc->name);
219 if (sc)
220 fsc->nargs = sc->nargs;
221 else {
222#if DEBUG
223 fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
224 "args to %d\n", fsc->name, nargs);
225#endif
226 fsc->nargs = nargs;
227 }
228
229 fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
230 fsc->sc = sc;
231
232 /*
233 * At this point, we set up the system call arguments.
234 * We ignore any OUT ones, however -- those are arguments that
235 * are set by the system call, and so are probably meaningless
236 * now. This doesn't currently support arguments that are
237 * passed in *and* out, however.
238 */
239
240 if (fsc->name) {
241#if DEBUG
242 fprintf(stderr, "syscall %s(", fsc->name);
243#endif
244 for (i = 0; i < fsc->nargs; i++) {
245#if DEBUG
246 fprintf(stderr, "0x%x%s", sc ?
247 fsc->args[sc->args[i].offset] : fsc->args[i],
248 i < (fsc->nargs - 1) ? "," : "");
249#endif
250 if (sc && !(sc->args[i].type & OUT)) {
251 fsc->s_args[i] = print_arg(&sc->args[i],
252 fsc->args, 0, trussinfo);
253 }
254 }
255#if DEBUG
256 fprintf(stderr, ")\n");
257#endif
258 }
259
260#if DEBUG
261 fprintf(trussinfo->outfile, "\n");
262#endif
263
264 if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
265 strcmp(fsc->name, "exit") == 0)) {
266 /*
267 * XXX
268 * This could be done in a more general
269 * manner but it still wouldn't be very pretty.
270 */
271 if (strcmp(fsc->name, "execve") == 0) {
272 if ((trussinfo->flags & EXECVEARGS) == 0) {
273 if (fsc->s_args[1]) {
274 free(fsc->s_args[1]);
275 fsc->s_args[1] = NULL;
276 }
277 }
278 if ((trussinfo->flags & EXECVEENVS) == 0) {
279 if (fsc->s_args[2]) {
280 free(fsc->s_args[2]);
281 fsc->s_args[2] = NULL;
282 }
283 }
284 }
285 }
286 trussinfo->curthread->fsc = fsc;
287}
288
289/*
290 * And when the system call is done, we handle it here.
291 * Currently, no attempt is made to ensure that the system calls
292 * match -- this needs to be fixed (and is, in fact, why S_SCX includes
293 * the system call number instead of, say, an error status).
294 */
295
296long
297mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
298{
299 struct reg regs;
300 struct freebsd_syscall *fsc;
301 struct syscall *sc;
302 lwpid_t tid;
303 long retval;
304 int errorp, i;
305
306 if (trussinfo->curthread->fsc == NULL)
307 return (-1);
308
309 tid = trussinfo->curthread->tid;
310
311 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
312 fprintf(trussinfo->outfile, "\n");
313 return (-1);
314 }
315
316 retval = regs.r_regs[V0];
317 errorp = !!regs.r_regs[A3];
318
319 /*
320 * This code, while simpler than the initial versions I used, could
321 * stand some significant cleaning.
322 */
323
324 fsc = trussinfo->curthread->fsc;
325 sc = fsc->sc;
326 if (!sc) {
327 for (i = 0; i < fsc->nargs; i++)
328 asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
329 } else {
330 /*
331 * Here, we only look for arguments that have OUT masked in --
332 * otherwise, they were handled in the syscall_entry function.
333 */
334 for (i = 0; i < sc->nargs; i++) {
335 char *temp;
| 35#endif /* not lint */
36
37/*
38 * FreeBSD/sparc64-specific system call handling. This is probably the most
39 * complex part of the entire truss program, although I've got lots of
40 * it handled relatively cleanly now. The system call names are generated
41 * automatically, thanks to /usr/src/sys/kern/syscalls.master. The
42 * names used for the various structures are confusing, I sadly admit.
43 *
44 * This file is almost nothing more than a slightly-edited i386-fbsd.c.
45 */
46
47#include <sys/types.h>
48#include <sys/ptrace.h>
49#include <sys/syscall.h>
50
51#include <machine/frame.h>
52#include <machine/reg.h>
53
54#include <err.h>
55#include <errno.h>
56#include <fcntl.h>
57#include <signal.h>
58#include <stddef.h>
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <time.h>
63#include <unistd.h>
64
65#include "truss.h"
66#include "syscall.h"
67#include "extern.h"
68
69#include "syscalls.h"
70
71static int nsyscalls = nitems(syscallnames);
72
73/*
74 * This is what this particular file uses to keep track of a system call.
75 * It is probably not quite sufficient -- I can probably use the same
76 * structure for the various syscall personalities, and I also probably
77 * need to nest system calls (for signal handlers).
78 *
79 * 'struct syscall' describes the system call; it may be NULL, however,
80 * if we don't know about this particular system call yet.
81 */
82struct freebsd_syscall {
83 struct syscall *sc;
84 const char *name;
85 int number;
86 unsigned long *args;
87 int nargs; /* number of arguments -- *not* number of words! */
88 char **s_args; /* the printable arguments */
89};
90
91static struct freebsd_syscall *
92alloc_fsc(void)
93{
94
95 return (malloc(sizeof(struct freebsd_syscall)));
96}
97
98/* Clear up and free parts of the fsc structure. */
99static void
100free_fsc(struct freebsd_syscall *fsc)
101{
102 int i;
103
104 free(fsc->args);
105 if (fsc->s_args) {
106 for (i = 0; i < fsc->nargs; i++)
107 free(fsc->s_args[i]);
108 free(fsc->s_args);
109 }
110 free(fsc);
111}
112
113/*
114 * Called when a process has entered a system call. nargs is the
115 * number of words, not number of arguments (a necessary distinction
116 * in some cases). Note that if the STOPEVENT() code in sparc64/sparc64/trap.c
117 * is ever changed these functions need to keep up.
118 */
119
120void
121mips_syscall_entry(struct trussinfo *trussinfo, int nargs)
122{
123 struct ptrace_io_desc iorequest;
124 struct reg regs;
125 struct freebsd_syscall *fsc;
126 struct syscall *sc;
127 lwpid_t tid;
128 int i, syscall_num;
129 int indir; /* indirect system call */
130
131 tid = trussinfo->curthread->tid;
132
133 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
134 fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n");
135 return;
136 }
137
138 indir = 0;
139 syscall_num = regs.r_regs[V0];
140 if (syscall_num == SYS_syscall) {
141 indir = 1;
142 syscall_num = regs.r_regs[A0];
143 }
144
145 fsc = alloc_fsc();
146 if (fsc == NULL)
147 return;
148 fsc->number = syscall_num;
149 fsc->name = (syscall_num < 0 || syscall_num >= nsyscalls) ?
150 NULL : syscallnames[syscall_num];
151 if (!fsc->name) {
152 fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n",
153 syscall_num);
154 }
155
156 if (fsc->name && (trussinfo->flags & FOLLOWFORKS) &&
157 (strcmp(fsc->name, "fork") == 0 ||
158 strcmp(fsc->name, "pdfork") == 0 ||
159 strcmp(fsc->name, "rfork") == 0 ||
160 strcmp(fsc->name, "vfork") == 0))
161 trussinfo->curthread->in_fork = 1;
162
163 if (nargs == 0)
164 return;
165
166 fsc->args = malloc((1 + nargs) * sizeof(unsigned long));
167#if 0 // XXX
168 iorequest.piod_op = PIOD_READ_D;
169 iorequest.piod_offs = (void *)parm_offset;
170 iorequest.piod_addr = fsc->args;
171 iorequest.piod_len = (1 + nargs) * sizeof(unsigned long);
172 ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
173 if (iorequest.piod_len == 0)
174 return;
175#else
176 iorequest.piod_op = PIOD_READ_D;
177#endif
178
179 switch (nargs) {
180 default:
181 /*
182 * The OS doesn't seem to allow more than 10 words of
183 * parameters (yay!). So we shouldn't be here.
184 */
185 warn("More than 10 words (%d) of arguments!\n", nargs);
186 break;
187 case 10:
188 case 9:
189 case 8:
190 case 7:
191 case 6:
192 case 5:
193 /*
194 * If there are 7-10 words of arguments, they are placed
195 * on the stack, as is normal for other processors.
196 * The fall-through for all of these is deliberate!!!
197 */
198 // XXX BAD constant used here
199 iorequest.piod_op = PIOD_READ_D;
200 iorequest.piod_offs = (void *)(regs.r_regs[SP] +
201 4 * sizeof(uint32_t));
202 iorequest.piod_addr = &fsc->args[4];
203 iorequest.piod_len = (nargs - 4) * sizeof(fsc->args[0]);
204 ptrace(PT_IO, tid, (caddr_t)&iorequest, 0);
205 if (iorequest.piod_len == 0)
206 return;
207 case 4: fsc->args[3] = regs.r_regs[A3];
208 case 3: fsc->args[2] = regs.r_regs[A2];
209 case 2: fsc->args[1] = regs.r_regs[A1];
210 case 1: fsc->args[0] = regs.r_regs[A0];
211 case 0: break;
212 }
213 if (indir) {
214 memmove(&fsc->args[0], &fsc->args[1],
215 (nargs - 1) * sizeof(fsc->args[0]));
216 }
217
218 sc = get_syscall(fsc->name);
219 if (sc)
220 fsc->nargs = sc->nargs;
221 else {
222#if DEBUG
223 fprintf(trussinfo->outfile, "unknown syscall %s -- setting "
224 "args to %d\n", fsc->name, nargs);
225#endif
226 fsc->nargs = nargs;
227 }
228
229 fsc->s_args = calloc(1, (1 + fsc->nargs) * sizeof(char *));
230 fsc->sc = sc;
231
232 /*
233 * At this point, we set up the system call arguments.
234 * We ignore any OUT ones, however -- those are arguments that
235 * are set by the system call, and so are probably meaningless
236 * now. This doesn't currently support arguments that are
237 * passed in *and* out, however.
238 */
239
240 if (fsc->name) {
241#if DEBUG
242 fprintf(stderr, "syscall %s(", fsc->name);
243#endif
244 for (i = 0; i < fsc->nargs; i++) {
245#if DEBUG
246 fprintf(stderr, "0x%x%s", sc ?
247 fsc->args[sc->args[i].offset] : fsc->args[i],
248 i < (fsc->nargs - 1) ? "," : "");
249#endif
250 if (sc && !(sc->args[i].type & OUT)) {
251 fsc->s_args[i] = print_arg(&sc->args[i],
252 fsc->args, 0, trussinfo);
253 }
254 }
255#if DEBUG
256 fprintf(stderr, ")\n");
257#endif
258 }
259
260#if DEBUG
261 fprintf(trussinfo->outfile, "\n");
262#endif
263
264 if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
265 strcmp(fsc->name, "exit") == 0)) {
266 /*
267 * XXX
268 * This could be done in a more general
269 * manner but it still wouldn't be very pretty.
270 */
271 if (strcmp(fsc->name, "execve") == 0) {
272 if ((trussinfo->flags & EXECVEARGS) == 0) {
273 if (fsc->s_args[1]) {
274 free(fsc->s_args[1]);
275 fsc->s_args[1] = NULL;
276 }
277 }
278 if ((trussinfo->flags & EXECVEENVS) == 0) {
279 if (fsc->s_args[2]) {
280 free(fsc->s_args[2]);
281 fsc->s_args[2] = NULL;
282 }
283 }
284 }
285 }
286 trussinfo->curthread->fsc = fsc;
287}
288
289/*
290 * And when the system call is done, we handle it here.
291 * Currently, no attempt is made to ensure that the system calls
292 * match -- this needs to be fixed (and is, in fact, why S_SCX includes
293 * the system call number instead of, say, an error status).
294 */
295
296long
297mips_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused)
298{
299 struct reg regs;
300 struct freebsd_syscall *fsc;
301 struct syscall *sc;
302 lwpid_t tid;
303 long retval;
304 int errorp, i;
305
306 if (trussinfo->curthread->fsc == NULL)
307 return (-1);
308
309 tid = trussinfo->curthread->tid;
310
311 if (ptrace(PT_GETREGS, tid, (caddr_t)®s, 0) < 0) {
312 fprintf(trussinfo->outfile, "\n");
313 return (-1);
314 }
315
316 retval = regs.r_regs[V0];
317 errorp = !!regs.r_regs[A3];
318
319 /*
320 * This code, while simpler than the initial versions I used, could
321 * stand some significant cleaning.
322 */
323
324 fsc = trussinfo->curthread->fsc;
325 sc = fsc->sc;
326 if (!sc) {
327 for (i = 0; i < fsc->nargs; i++)
328 asprintf(&fsc->s_args[i], "0x%lx", fsc->args[i]);
329 } else {
330 /*
331 * Here, we only look for arguments that have OUT masked in --
332 * otherwise, they were handled in the syscall_entry function.
333 */
334 for (i = 0; i < sc->nargs; i++) {
335 char *temp;
|
336 if (sc->args[i].type & OUT) {
337 /*
338 * If an error occurred, then don't bother
339 * getting the data; it may not be valid.
340 */
341 if (errorp) {
342 asprintf(&temp, "0x%lx",
343 fsc->args[sc->args[i].offset]);
344 } else {
345 temp = print_arg(&sc->args[i],
346 fsc->args, retval, trussinfo);
347 }
348 fsc->s_args[i] = temp;
349 }
350 }
351 }
352
353 if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
354 strcmp(fsc->name, "exit") == 0))
355 trussinfo->curthread->in_syscall = 1;
356
357 /*
358 * It would probably be a good idea to merge the error handling,
359 * but that complicates things considerably.
360 */
361
362 print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
363 retval, fsc->sc);
364 free_fsc(fsc);
365
366 return (retval);
367}
| 337 if (sc->args[i].type & OUT) {
338 /*
339 * If an error occurred, then don't bother
340 * getting the data; it may not be valid.
341 */
342 if (errorp) {
343 asprintf(&temp, "0x%lx",
344 fsc->args[sc->args[i].offset]);
345 } else {
346 temp = print_arg(&sc->args[i],
347 fsc->args, retval, trussinfo);
348 }
349 fsc->s_args[i] = temp;
350 }
351 }
352 }
353
354 if (fsc->name != NULL && (strcmp(fsc->name, "execve") == 0 ||
355 strcmp(fsc->name, "exit") == 0))
356 trussinfo->curthread->in_syscall = 1;
357
358 /*
359 * It would probably be a good idea to merge the error handling,
360 * but that complicates things considerably.
361 */
362
363 print_syscall_ret(trussinfo, fsc->name, fsc->nargs, fsc->s_args, errorp,
364 retval, fsc->sc);
365 free_fsc(fsc);
366
367 return (retval);
368}
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