1/*-
2 * Copyright (c) 2009 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/param.h>
28#include <ctype.h>
29#include <err.h>
30#include <getopt.h>
31#include <libelftc.h>
32#include <stdlib.h>
33#include <stdio.h>
34#include <string.h>
35
36#include "_elftc.h"
37
| 1/*-
2 * Copyright (c) 2009 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/param.h>
28#include <ctype.h>
29#include <err.h>
30#include <getopt.h>
31#include <libelftc.h>
32#include <stdlib.h>
33#include <stdio.h>
34#include <string.h>
35
36#include "_elftc.h"
37
|
38ELFTC_VCSID("$Id: cxxfilt.c 3174 2015-03-27 17:13:41Z emaste $");
| 38ELFTC_VCSID("$Id: cxxfilt.c 3356 2016-01-22 22:31:38Z jkoshy $");
|
39
40#define STRBUFSZ 8192
41
42static int stripus = 0;
43static int noparam = 0;
44static int format = 0;
45
46enum options
47{
48 OPTION_HELP,
49 OPTION_VERSION
50};
51
52static struct option longopts[] =
53{
54 {"format", required_argument, NULL, 's'},
55 {"help", no_argument, NULL, OPTION_HELP},
56 {"no-params", no_argument, NULL, 'p'},
57 {"no-strip-underscores", no_argument, NULL, 'n'},
58 {"strip-underscores", no_argument, NULL, '_'},
59 {"version", no_argument, NULL, 'V'},
60 {NULL, 0, NULL, 0}
61};
62
63static struct {
64 const char *fname;
65 int fvalue;
66} flist[] = {
67 {"auto", 0},
68 {"arm", ELFTC_DEM_ARM},
69 {"gnu", ELFTC_DEM_GNU2},
70 {"gnu-v3", ELFTC_DEM_GNU3}
71};
72
73#define USAGE_MESSAGE "\
74Usage: %s [options] [encoded-names...]\n\
75 Translate C++ symbol names to human-readable form.\n\n\
76 Options:\n\
77 -_ | --strip-underscores Remove leading underscores prior to decoding.\n\
78 -n | --no-strip-underscores Do not remove leading underscores.\n\
79 -p | --no-params (Accepted but ignored).\n\
80 -s SCHEME | --format=SCHEME Select the encoding scheme to use.\n\
81 Valid schemes are: 'arm', 'auto', 'gnu' and\n\
82 'gnu-v3'.\n\
83 --help Print a help message.\n\
84 --version Print a version identifier and exit.\n"
85
86static void
87usage(void)
88{
89
90 (void) fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
91 exit(1);
92}
93
94static void
95version(void)
96{
97 fprintf(stderr, "%s (%s)\n", ELFTC_GETPROGNAME(), elftc_version());
98 exit(0);
99}
100
101static int
102find_format(const char *fstr)
103{
104 int i;
105
106 for (i = 0; (size_t) i < sizeof(flist) / sizeof(flist[0]); i++) {
107 if (!strcmp(fstr, flist[i].fname))
108 return (flist[i].fvalue);
109 }
110
111 return (-1);
112}
113
114static char *
| 39
40#define STRBUFSZ 8192
41
42static int stripus = 0;
43static int noparam = 0;
44static int format = 0;
45
46enum options
47{
48 OPTION_HELP,
49 OPTION_VERSION
50};
51
52static struct option longopts[] =
53{
54 {"format", required_argument, NULL, 's'},
55 {"help", no_argument, NULL, OPTION_HELP},
56 {"no-params", no_argument, NULL, 'p'},
57 {"no-strip-underscores", no_argument, NULL, 'n'},
58 {"strip-underscores", no_argument, NULL, '_'},
59 {"version", no_argument, NULL, 'V'},
60 {NULL, 0, NULL, 0}
61};
62
63static struct {
64 const char *fname;
65 int fvalue;
66} flist[] = {
67 {"auto", 0},
68 {"arm", ELFTC_DEM_ARM},
69 {"gnu", ELFTC_DEM_GNU2},
70 {"gnu-v3", ELFTC_DEM_GNU3}
71};
72
73#define USAGE_MESSAGE "\
74Usage: %s [options] [encoded-names...]\n\
75 Translate C++ symbol names to human-readable form.\n\n\
76 Options:\n\
77 -_ | --strip-underscores Remove leading underscores prior to decoding.\n\
78 -n | --no-strip-underscores Do not remove leading underscores.\n\
79 -p | --no-params (Accepted but ignored).\n\
80 -s SCHEME | --format=SCHEME Select the encoding scheme to use.\n\
81 Valid schemes are: 'arm', 'auto', 'gnu' and\n\
82 'gnu-v3'.\n\
83 --help Print a help message.\n\
84 --version Print a version identifier and exit.\n"
85
86static void
87usage(void)
88{
89
90 (void) fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
91 exit(1);
92}
93
94static void
95version(void)
96{
97 fprintf(stderr, "%s (%s)\n", ELFTC_GETPROGNAME(), elftc_version());
98 exit(0);
99}
100
101static int
102find_format(const char *fstr)
103{
104 int i;
105
106 for (i = 0; (size_t) i < sizeof(flist) / sizeof(flist[0]); i++) {
107 if (!strcmp(fstr, flist[i].fname))
108 return (flist[i].fvalue);
109 }
110
111 return (-1);
112}
113
114static char *
|
115demangle(char *name, int strict, int *pos)
| 115demangle(char *name, int strict, size_t *pos)
|
116{
117 static char dem[STRBUFSZ];
118 char nb[STRBUFSZ];
| 116{
117 static char dem[STRBUFSZ];
118 char nb[STRBUFSZ];
|
119 int p, t;
| 119 size_t p, t;
|
120
121 if (stripus && *name == '_') {
122 strncpy(nb, name + 1, sizeof(nb) - 1);
123 t = 1;
124 } else {
125 strncpy(nb, name, sizeof(nb) - 1);
126 t = 0;
127 }
128 nb[sizeof(nb) - 1] = '\0';
129
130 p = strlen(nb);
| 120
121 if (stripus && *name == '_') {
122 strncpy(nb, name + 1, sizeof(nb) - 1);
123 t = 1;
124 } else {
125 strncpy(nb, name, sizeof(nb) - 1);
126 t = 0;
127 }
128 nb[sizeof(nb) - 1] = '\0';
129
130 p = strlen(nb);
|
131 if (p <= 0)
| 131 if (p == 0)
|
132 return NULL;
133
| 132 return NULL;
133
|
134 while (elftc_demangle(nb, dem, sizeof(dem), format) < 0) {
| 134 while (elftc_demangle(nb, dem, sizeof(dem), (unsigned) format) < 0) {
|
135 if (!strict && p > 1) {
136 nb[--p] = '\0';
137 continue;
138 } else
139 return (NULL);
140 }
141
142 if (pos != NULL)
143 *pos = t ? p + 1 : p;
144
145 return (dem);
146}
147
148int
149main(int argc, char **argv)
150{
151 char *dem, buf[STRBUFSZ];
| 135 if (!strict && p > 1) {
136 nb[--p] = '\0';
137 continue;
138 } else
139 return (NULL);
140 }
141
142 if (pos != NULL)
143 *pos = t ? p + 1 : p;
144
145 return (dem);
146}
147
148int
149main(int argc, char **argv)
150{
151 char *dem, buf[STRBUFSZ];
|
152 int c, i, p, s, opt;
| 152 size_t i, p, s;
153 int c, n, opt;
|
153
154 while ((opt = getopt_long(argc, argv, "_nps:V", longopts, NULL)) !=
155 -1) {
156 switch (opt) {
157 case '_':
158 stripus = 1;
159 break;
160 case 'n':
161 stripus = 0;
162 break;
163 case 'p':
164 noparam = 1;
165 break;
166 case 's':
167 if ((format = find_format(optarg)) < 0)
168 errx(EXIT_FAILURE, "unsupported format: %s",
169 optarg);
170 break;
171 case 'V':
172 version();
173 /* NOT REACHED */
174 case OPTION_HELP:
175 default:
176 usage();
177 /* NOT REACHED */
178 }
179 }
180
181 argv += optind;
182 argc -= optind;
183
184 if (*argv != NULL) {
| 154
155 while ((opt = getopt_long(argc, argv, "_nps:V", longopts, NULL)) !=
156 -1) {
157 switch (opt) {
158 case '_':
159 stripus = 1;
160 break;
161 case 'n':
162 stripus = 0;
163 break;
164 case 'p':
165 noparam = 1;
166 break;
167 case 's':
168 if ((format = find_format(optarg)) < 0)
169 errx(EXIT_FAILURE, "unsupported format: %s",
170 optarg);
171 break;
172 case 'V':
173 version();
174 /* NOT REACHED */
175 case OPTION_HELP:
176 default:
177 usage();
178 /* NOT REACHED */
179 }
180 }
181
182 argv += optind;
183 argc -= optind;
184
185 if (*argv != NULL) {
|
185 for (i = 0; i < argc; i++) {
186 if ((dem = demangle(argv[i], 1, NULL)) == NULL)
187 fprintf(stderr, "Failed: %s\n", argv[i]);
| 186 for (n = 0; n < argc; n++) {
187 if ((dem = demangle(argv[n], 1, NULL)) == NULL)
188 fprintf(stderr, "Failed: %s\n", argv[n]);
|
188 else
189 printf("%s\n", dem);
190 }
191 } else {
192 p = 0;
193 for (;;) {
194 c = fgetc(stdin);
195 if (c == EOF || !isprint(c) || strchr(" \t\n", c)) {
196 if (p > 0) {
197 buf[p] = '\0';
198 if ((dem = demangle(buf, 0, &s)) ==
199 NULL)
200 printf("%s", buf);
201 else {
202 printf("%s", dem);
203 for (i = s; i < p; i++)
204 putchar(buf[i]);
205 }
206 p = 0;
207 }
208 if (c == EOF)
209 break;
210 if (isprint(c) || strchr(" \t\n", c))
211 putchar(c);
212 } else {
213 if ((size_t) p >= sizeof(buf) - 1)
214 warnx("buffer overflowed");
215 else
| 189 else
190 printf("%s\n", dem);
191 }
192 } else {
193 p = 0;
194 for (;;) {
195 c = fgetc(stdin);
196 if (c == EOF || !isprint(c) || strchr(" \t\n", c)) {
197 if (p > 0) {
198 buf[p] = '\0';
199 if ((dem = demangle(buf, 0, &s)) ==
200 NULL)
201 printf("%s", buf);
202 else {
203 printf("%s", dem);
204 for (i = s; i < p; i++)
205 putchar(buf[i]);
206 }
207 p = 0;
208 }
209 if (c == EOF)
210 break;
211 if (isprint(c) || strchr(" \t\n", c))
212 putchar(c);
213 } else {
214 if ((size_t) p >= sizeof(buf) - 1)
215 warnx("buffer overflowed");
216 else
|
216 buf[p++] = c;
| 217 buf[p++] = (char) c;
|
217 }
218
219 }
220 }
221
222 exit(0);
223}
| 218 }
219
220 }
221 }
222
223 exit(0);
224}
|