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1/*
2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
3 *
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include "dtc.h"
22#include "srcpos.h"
23
24#include "version_gen.h"
25
26/*
27 * Command line options
28 */
29int quiet; /* Level of quietness */
30int reservenum; /* Number of memory reservation slots */
31int minsize; /* Minimum blob size */
32int padsize; /* Additional padding to blob */
33int phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */
34
35static void fill_fullpaths(struct node *tree, const char *prefix)
36{
37 struct node *child;
38 const char *unit;
39
40 tree->fullpath = join_path(prefix, tree->name);
41
42 unit = strchr(tree->name, '@');
43 if (unit)
44 tree->basenamelen = unit - tree->name;
45 else
46 tree->basenamelen = strlen(tree->name);
47
48 for_each_child(tree, child)
49 fill_fullpaths(child, tree->fullpath);
50}
51
52static void __attribute__ ((noreturn)) usage(void)
53{
54 fprintf(stderr, "Usage:\n");
55 fprintf(stderr, "\tdtc [options] <input file>\n");
56 fprintf(stderr, "\nOptions:\n");
57 fprintf(stderr, "\t-h\n");
58 fprintf(stderr, "\t\tThis help text\n");
59 fprintf(stderr, "\t-q\n");
60 fprintf(stderr, "\t\tQuiet: -q suppress warnings, -qq errors, -qqq all\n");
61 fprintf(stderr, "\t-I <input format>\n");
62 fprintf(stderr, "\t\tInput formats are:\n");
63 fprintf(stderr, "\t\t\tdts - device tree source text\n");
64 fprintf(stderr, "\t\t\tdtb - device tree blob\n");
65 fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n");
66 fprintf(stderr, "\t-o <output file>\n");
67 fprintf(stderr, "\t-O <output format>\n");
68 fprintf(stderr, "\t\tOutput formats are:\n");
69 fprintf(stderr, "\t\t\tdts - device tree source text\n");
70 fprintf(stderr, "\t\t\tdtb - device tree blob\n");
71 fprintf(stderr, "\t\t\tasm - assembler source\n");
72 fprintf(stderr, "\t-V <output version>\n");
73 fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION);
74 fprintf(stderr, "\t-R <number>\n");
75 fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
76 fprintf(stderr, "\t-S <bytes>\n");
77 fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n");
78 fprintf(stderr, "\t-p <bytes>\n");
79 fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n");
80 fprintf(stderr, "\t-b <number>\n");
81 fprintf(stderr, "\t\tSet the physical boot cpu\n");
82 fprintf(stderr, "\t-f\n");
83 fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
84 fprintf(stderr, "\t-s\n");
85 fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n");
86 fprintf(stderr, "\t-v\n");
87 fprintf(stderr, "\t\tPrint DTC version and exit\n");
88 fprintf(stderr, "\t-H <phandle format>\n");
89 fprintf(stderr, "\t\tphandle formats are:\n");
90 fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n");
91 fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n");
92 fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n");
93 exit(3);
94}
95
96int main(int argc, char *argv[])
97{
98 struct boot_info *bi;
99 const char *inform = "dts";
100 const char *outform = "dts";
101 const char *outname = "-";
102 int force = 0, check = 0, sort = 0;
103 const char *arg;
104 int opt;
105 FILE *outf = NULL;
106 int outversion = DEFAULT_FDT_VERSION;
107 long long cmdline_boot_cpuid = -1;
108
109 quiet = 0;
110 reservenum = 0;
111 minsize = 0;
112 padsize = 0;
113
114 while ((opt = getopt(argc, argv, "hI:O:o:V:R:S:p:fcqb:vH:s")) != EOF) {
115 switch (opt) {
116 case 'I':
117 inform = optarg;
118 break;
119 case 'O':
120 outform = optarg;
121 break;
122 case 'o':
123 outname = optarg;
124 break;
125 case 'V':
126 outversion = strtol(optarg, NULL, 0);
127 break;
128 case 'R':
129 reservenum = strtol(optarg, NULL, 0);
130 break;
131 case 'S':
132 minsize = strtol(optarg, NULL, 0);
133 break;
134 case 'p':
135 padsize = strtol(optarg, NULL, 0);
136 break;
137 case 'f':
138 force = 1;
139 break;
140 case 'c':
141 check = 1;
142 break;
143 case 'q':
144 quiet++;
145 break;
146 case 'b':
147 cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
148 break;
149 case 'v':
150 printf("Version: %s\n", DTC_VERSION);
151 exit(0);
152 case 'H':
153 if (streq(optarg, "legacy"))
154 phandle_format = PHANDLE_LEGACY;
155 else if (streq(optarg, "epapr"))
156 phandle_format = PHANDLE_EPAPR;
157 else if (streq(optarg, "both"))
158 phandle_format = PHANDLE_BOTH;
159 else
160 die("Invalid argument \"%s\" to -H option\n",
161 optarg);
162 break;
163
164 case 's':
165 sort = 1;
166 break;
167
168 case 'h':
169 default:
170 usage();
171 }
172 }
173
174 if (argc > (optind+1))
175 usage();
176 else if (argc < (optind+1))
177 arg = "-";
178 else
179 arg = argv[optind];
180
181 /* minsize and padsize are mutually exclusive */
182 if (minsize && padsize)
183 die("Can't set both -p and -S\n");
184
185 if (minsize)
186 fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n");
187
188 fprintf(stderr, "DTC: %s->%s on file \"%s\"\n",
189 inform, outform, arg);
190
191 if (streq(inform, "dts"))
192 bi = dt_from_source(arg);
193 else if (streq(inform, "fs"))
194 bi = dt_from_fs(arg);
195 else if(streq(inform, "dtb"))
196 bi = dt_from_blob(arg);
197 else
198 die("Unknown input format \"%s\"\n", inform);
199
200 if (cmdline_boot_cpuid != -1)
201 bi->boot_cpuid_phys = cmdline_boot_cpuid;
202
203 fill_fullpaths(bi->dt, "");
204 process_checks(force, bi);
205
206 if (sort)
207 sort_tree(bi);
208
209 if (streq(outname, "-")) {
210 outf = stdout;
211 } else {
212 outf = fopen(outname, "w");
213 if (! outf)
214 die("Couldn't open output file %s: %s\n",
215 outname, strerror(errno));
216 }
217
218 if (streq(outform, "dts")) {
219 dt_to_source(outf, bi);
220 } else if (streq(outform, "dtb")) {
221 dt_to_blob(outf, bi, outversion);
222 } else if (streq(outform, "asm")) {
223 dt_to_asm(outf, bi, outversion);
224 } else if (streq(outform, "null")) {
225 /* do nothing */
226 } else {
227 die("Unknown output format \"%s\"\n", outform);
228 }
229
230 exit(0);
231}
1/*
2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
3 *
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include <sys/stat.h>
22
23#include "dtc.h"
24#include "srcpos.h"
25
26/*
27 * Command line options
28 */
29int quiet; /* Level of quietness */
30int reservenum; /* Number of memory reservation slots */
31int minsize; /* Minimum blob size */
32int padsize; /* Additional padding to blob */
33int phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */
34
35static void fill_fullpaths(struct node *tree, const char *prefix)
36{
37 struct node *child;
38 const char *unit;
39
40 tree->fullpath = join_path(prefix, tree->name);
41
42 unit = strchr(tree->name, '@');
43 if (unit)
44 tree->basenamelen = unit - tree->name;
45 else
46 tree->basenamelen = strlen(tree->name);
47
48 for_each_child(tree, child)
49 fill_fullpaths(child, tree->fullpath);
50}
51
52/* Usage related data. */
53#define FDT_VERSION(version) _FDT_VERSION(version)
54#define _FDT_VERSION(version) #version
55static const char usage_synopsis[] = "dtc [options] <input file>";
56static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:fb:i:H:sW:E:hv";
57static struct option const usage_long_opts[] = {
58 {"quiet", no_argument, NULL, 'q'},
59 {"in-format", a_argument, NULL, 'I'},
60 {"out", a_argument, NULL, 'o'},
61 {"out-format", a_argument, NULL, 'O'},
62 {"out-version", a_argument, NULL, 'V'},
63 {"out-dependency", a_argument, NULL, 'd'},
64 {"reserve", a_argument, NULL, 'R'},
65 {"space", a_argument, NULL, 'S'},
66 {"pad", a_argument, NULL, 'p'},
67 {"boot-cpu", a_argument, NULL, 'b'},
68 {"force", no_argument, NULL, 'f'},
69 {"include", a_argument, NULL, 'i'},
70 {"sort", no_argument, NULL, 's'},
71 {"phandle", a_argument, NULL, 'H'},
72 {"warning", a_argument, NULL, 'W'},
73 {"error", a_argument, NULL, 'E'},
74 {"help", no_argument, NULL, 'h'},
75 {"version", no_argument, NULL, 'v'},
76 {NULL, no_argument, NULL, 0x0},
77};
78static const char * const usage_opts_help[] = {
79 "\n\tQuiet: -q suppress warnings, -qq errors, -qqq all",
80 "\n\tInput formats are:\n"
81 "\t\tdts - device tree source text\n"
82 "\t\tdtb - device tree blob\n"
83 "\t\tfs - /proc/device-tree style directory",
84 "\n\tOutput file",
85 "\n\tOutput formats are:\n"
86 "\t\tdts - device tree source text\n"
87 "\t\tdtb - device tree blob\n"
88 "\t\tasm - assembler source",
89 "\n\tBlob version to produce, defaults to "FDT_VERSION(DEFAULT_FDT_VERSION)" (for dtb and asm output)",
90 "\n\tOutput dependency file",
91 "\n\tMake space for <number> reserve map entries (for dtb and asm output)",
92 "\n\tMake the blob at least <bytes> long (extra space)",
93 "\n\tAdd padding to the blob of <bytes> long (extra space)",
94 "\n\tSet the physical boot cpu",
95 "\n\tTry to produce output even if the input tree has errors",
96 "\n\tAdd a path to search for include files",
97 "\n\tSort nodes and properties before outputting (useful for comparing trees)",
98 "\n\tValid phandle formats are:\n"
99 "\t\tlegacy - \"linux,phandle\" properties only\n"
100 "\t\tepapr - \"phandle\" properties only\n"
101 "\t\tboth - Both \"linux,phandle\" and \"phandle\" properties",
102 "\n\tEnable/disable warnings (prefix with \"no-\")",
103 "\n\tEnable/disable errors (prefix with \"no-\")",
104 "\n\tPrint this help and exit",
105 "\n\tPrint version and exit",
106 NULL,
107};
108
109static const char *guess_type_by_name(const char *fname, const char *fallback)
110{
111 const char *s;
112
113 s = strrchr(fname, '.');
114 if (s == NULL)
115 return fallback;
116 if (!strcasecmp(s, ".dts"))
117 return "dts";
118 if (!strcasecmp(s, ".dtb"))
119 return "dtb";
120 return fallback;
121}
122
123static const char *guess_input_format(const char *fname, const char *fallback)
124{
125 struct stat statbuf;
126 uint32_t magic;
127 FILE *f;
128
129 if (stat(fname, &statbuf) != 0)
130 return fallback;
131
132 if (S_ISDIR(statbuf.st_mode))
133 return "fs";
134
135 if (!S_ISREG(statbuf.st_mode))
136 return fallback;
137
138 f = fopen(fname, "r");
139 if (f == NULL)
140 return fallback;
141 if (fread(&magic, 4, 1, f) != 1) {
142 fclose(f);
143 return fallback;
144 }
145 fclose(f);
146
147 magic = fdt32_to_cpu(magic);
148 if (magic == FDT_MAGIC)
149 return "dtb";
150
151 return guess_type_by_name(fname, fallback);
152}
153
154int main(int argc, char *argv[])
155{
156 struct boot_info *bi;
157 const char *inform = NULL;
158 const char *outform = NULL;
159 const char *outname = "-";
160 const char *depname = NULL;
161 bool force = false, sort = false;
162 const char *arg;
163 int opt;
164 FILE *outf = NULL;
165 int outversion = DEFAULT_FDT_VERSION;
166 long long cmdline_boot_cpuid = -1;
167
168 quiet = 0;
169 reservenum = 0;
170 minsize = 0;
171 padsize = 0;
172
173 while ((opt = util_getopt_long()) != EOF) {
174 switch (opt) {
175 case 'I':
176 inform = optarg;
177 break;
178 case 'O':
179 outform = optarg;
180 break;
181 case 'o':
182 outname = optarg;
183 break;
184 case 'V':
185 outversion = strtol(optarg, NULL, 0);
186 break;
187 case 'd':
188 depname = optarg;
189 break;
190 case 'R':
191 reservenum = strtol(optarg, NULL, 0);
192 break;
193 case 'S':
194 minsize = strtol(optarg, NULL, 0);
195 break;
196 case 'p':
197 padsize = strtol(optarg, NULL, 0);
198 break;
199 case 'f':
200 force = true;
201 break;
202 case 'q':
203 quiet++;
204 break;
205 case 'b':
206 cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
207 break;
208 case 'i':
209 srcfile_add_search_path(optarg);
210 break;
211 case 'v':
212 util_version();
213 case 'H':
214 if (streq(optarg, "legacy"))
215 phandle_format = PHANDLE_LEGACY;
216 else if (streq(optarg, "epapr"))
217 phandle_format = PHANDLE_EPAPR;
218 else if (streq(optarg, "both"))
219 phandle_format = PHANDLE_BOTH;
220 else
221 die("Invalid argument \"%s\" to -H option\n",
222 optarg);
223 break;
224
225 case 's':
226 sort = true;
227 break;
228
229 case 'W':
230 parse_checks_option(true, false, optarg);
231 break;
232
233 case 'E':
234 parse_checks_option(false, true, optarg);
235 break;
236
237 case 'h':
238 usage(NULL);
239 default:
240 usage("unknown option");
241 }
242 }
243
244 if (argc > (optind+1))
245 usage("missing files");
246 else if (argc < (optind+1))
247 arg = "-";
248 else
249 arg = argv[optind];
250
251 /* minsize and padsize are mutually exclusive */
252 if (minsize && padsize)
253 die("Can't set both -p and -S\n");
254
255 if (depname) {
256 depfile = fopen(depname, "w");
257 if (!depfile)
258 die("Couldn't open dependency file %s: %s\n", depname,
259 strerror(errno));
260 fprintf(depfile, "%s:", outname);
261 }
262
263 if (inform == NULL)
264 inform = guess_input_format(arg, "dts");
265 if (outform == NULL) {
266 outform = guess_type_by_name(outname, NULL);
267 if (outform == NULL) {
268 if (streq(inform, "dts"))
269 outform = "dtb";
270 else
271 outform = "dts";
272 }
273 }
274 if (streq(inform, "dts"))
275 bi = dt_from_source(arg);
276 else if (streq(inform, "fs"))
277 bi = dt_from_fs(arg);
278 else if(streq(inform, "dtb"))
279 bi = dt_from_blob(arg);
280 else
281 die("Unknown input format \"%s\"\n", inform);
282
283 if (depfile) {
284 fputc('\n', depfile);
285 fclose(depfile);
286 }
287
288 if (cmdline_boot_cpuid != -1)
289 bi->boot_cpuid_phys = cmdline_boot_cpuid;
290
291 fill_fullpaths(bi->dt, "");
292 process_checks(force, bi);
293
294 if (sort)
295 sort_tree(bi);
296
297 if (streq(outname, "-")) {
298 outf = stdout;
299 } else {
300 outf = fopen(outname, "wb");
301 if (! outf)
302 die("Couldn't open output file %s: %s\n",
303 outname, strerror(errno));
304 }
305
306 if (streq(outform, "dts")) {
307 dt_to_source(outf, bi);
308 } else if (streq(outform, "dtb")) {
309 dt_to_blob(outf, bi, outversion);
310 } else if (streq(outform, "asm")) {
311 dt_to_asm(outf, bi, outversion);
312 } else if (streq(outform, "null")) {
313 /* do nothing */
314 } else {
315 die("Unknown output format \"%s\"\n", outform);
316 }
317
318 exit(0);
319}