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a4da2e3e DG |
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 | ||
91feabc2 RH |
21 | #include <sys/stat.h> |
22 | ||
a4da2e3e DG |
23 | #include "dtc.h" |
24 | #include "srcpos.h" | |
25 | ||
a4da2e3e DG |
26 | /* |
27 | * Command line options | |
28 | */ | |
29 | int quiet; /* Level of quietness */ | |
30 | int reservenum; /* Number of memory reservation slots */ | |
31 | int minsize; /* Minimum blob size */ | |
32 | int padsize; /* Additional padding to blob */ | |
658f29a5 | 33 | int phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */ |
a4da2e3e | 34 | |
ed95d745 | 35 | static void fill_fullpaths(struct node *tree, const char *prefix) |
a4da2e3e DG |
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 | ||
73ab39b1 | 52 | /* Usage related data. */ |
47605971 RH |
53 | #define FDT_VERSION(version) _FDT_VERSION(version) |
54 | #define _FDT_VERSION(version) #version | |
73ab39b1 GL |
55 | static const char usage_synopsis[] = "dtc [options] <input file>"; |
56 | static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:fb:i:H:sW:E:hv"; | |
57 | static 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 | }; | |
78 | static 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", | |
47605971 | 89 | "\n\tBlob version to produce, defaults to "FDT_VERSION(DEFAULT_FDT_VERSION)" (for dtb and asm output)", |
73ab39b1 | 90 | "\n\tOutput dependency file", |
47605971 | 91 | "\n\tMake space for <number> reserve map entries (for dtb and asm output)", |
73ab39b1 GL |
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 | }; | |
a4da2e3e | 108 | |
91feabc2 RH |
109 | static 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 | ||
123 | static 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 | ||
a4da2e3e DG |
154 | int main(int argc, char *argv[]) |
155 | { | |
156 | struct boot_info *bi; | |
91feabc2 RH |
157 | const char *inform = NULL; |
158 | const char *outform = NULL; | |
a4da2e3e | 159 | const char *outname = "-"; |
136ec204 | 160 | const char *depname = NULL; |
47605971 | 161 | bool force = false, sort = false; |
a4da2e3e DG |
162 | const char *arg; |
163 | int opt; | |
a4da2e3e DG |
164 | FILE *outf = NULL; |
165 | int outversion = DEFAULT_FDT_VERSION; | |
ed95d745 | 166 | long long cmdline_boot_cpuid = -1; |
a4da2e3e DG |
167 | |
168 | quiet = 0; | |
169 | reservenum = 0; | |
170 | minsize = 0; | |
171 | padsize = 0; | |
172 | ||
73ab39b1 | 173 | while ((opt = util_getopt_long()) != EOF) { |
a4da2e3e DG |
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; | |
136ec204 SW |
187 | case 'd': |
188 | depname = optarg; | |
189 | break; | |
a4da2e3e DG |
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': | |
47605971 | 200 | force = true; |
a4da2e3e | 201 | break; |
a4da2e3e DG |
202 | case 'q': |
203 | quiet++; | |
204 | break; | |
205 | case 'b': | |
ed95d745 | 206 | cmdline_boot_cpuid = strtoll(optarg, NULL, 0); |
a4da2e3e | 207 | break; |
cd296721 SW |
208 | case 'i': |
209 | srcfile_add_search_path(optarg); | |
210 | break; | |
a4da2e3e | 211 | case 'v': |
73ab39b1 | 212 | util_version(); |
658f29a5 JB |
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': | |
47605971 | 226 | sort = true; |
658f29a5 JB |
227 | break; |
228 | ||
cd296721 SW |
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 | ||
a4da2e3e | 237 | case 'h': |
73ab39b1 | 238 | usage(NULL); |
a4da2e3e | 239 | default: |
73ab39b1 | 240 | usage("unknown option"); |
a4da2e3e DG |
241 | } |
242 | } | |
243 | ||
244 | if (argc > (optind+1)) | |
73ab39b1 | 245 | usage("missing files"); |
a4da2e3e DG |
246 | else if (argc < (optind+1)) |
247 | arg = "-"; | |
248 | else | |
249 | arg = argv[optind]; | |
250 | ||
251 | /* minsize and padsize are mutually exclusive */ | |
ed95d745 | 252 | if (minsize && padsize) |
a4da2e3e | 253 | die("Can't set both -p and -S\n"); |
a4da2e3e | 254 | |
136ec204 SW |
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 | ||
91feabc2 RH |
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 | } | |
ed95d745 | 274 | if (streq(inform, "dts")) |
a4da2e3e | 275 | bi = dt_from_source(arg); |
ed95d745 | 276 | else if (streq(inform, "fs")) |
a4da2e3e | 277 | bi = dt_from_fs(arg); |
ed95d745 DG |
278 | else if(streq(inform, "dtb")) |
279 | bi = dt_from_blob(arg); | |
280 | else | |
a4da2e3e | 281 | die("Unknown input format \"%s\"\n", inform); |
a4da2e3e | 282 | |
136ec204 SW |
283 | if (depfile) { |
284 | fputc('\n', depfile); | |
285 | fclose(depfile); | |
286 | } | |
287 | ||
ed95d745 DG |
288 | if (cmdline_boot_cpuid != -1) |
289 | bi->boot_cpuid_phys = cmdline_boot_cpuid; | |
a4da2e3e | 290 | |
ed95d745 DG |
291 | fill_fullpaths(bi->dt, ""); |
292 | process_checks(force, bi); | |
a4da2e3e | 293 | |
658f29a5 JB |
294 | if (sort) |
295 | sort_tree(bi); | |
a4da2e3e DG |
296 | |
297 | if (streq(outname, "-")) { | |
298 | outf = stdout; | |
299 | } else { | |
47605971 | 300 | outf = fopen(outname, "wb"); |
a4da2e3e DG |
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")) { | |
ed95d745 | 309 | dt_to_blob(outf, bi, outversion); |
a4da2e3e | 310 | } else if (streq(outform, "asm")) { |
ed95d745 | 311 | dt_to_asm(outf, bi, outversion); |
a4da2e3e DG |
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 | } |