Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
a4da2e3e DG |
2 | /* |
3 | * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. | |
a4da2e3e DG |
4 | */ |
5 | ||
91feabc2 RH |
6 | #include <sys/stat.h> |
7 | ||
a4da2e3e DG |
8 | #include "dtc.h" |
9 | #include "srcpos.h" | |
10 | ||
a4da2e3e DG |
11 | /* |
12 | * Command line options | |
13 | */ | |
14 | int quiet; /* Level of quietness */ | |
15 | int reservenum; /* Number of memory reservation slots */ | |
16 | int minsize; /* Minimum blob size */ | |
17 | int padsize; /* Additional padding to blob */ | |
6f05afcb | 18 | int alignsize; /* Additional padding to blob accroding to the alignsize */ |
4201d057 | 19 | int phandle_format = PHANDLE_EPAPR; /* Use linux,phandle or phandle properties */ |
6f05afcb RH |
20 | int generate_symbols; /* enable symbols & fixup support */ |
21 | int generate_fixups; /* suppress generation of fixups on symbol support */ | |
22 | int auto_label_aliases; /* auto generate labels -> aliases */ | |
c2e7075c RH |
23 | int annotate; /* Level of annotation: 1 for input source location |
24 | >1 for full input source location. */ | |
6f05afcb RH |
25 | |
26 | static int is_power_of_2(int x) | |
27 | { | |
28 | return (x > 0) && ((x & (x - 1)) == 0); | |
29 | } | |
a4da2e3e | 30 | |
ed95d745 | 31 | static void fill_fullpaths(struct node *tree, const char *prefix) |
a4da2e3e DG |
32 | { |
33 | struct node *child; | |
34 | const char *unit; | |
35 | ||
36 | tree->fullpath = join_path(prefix, tree->name); | |
37 | ||
38 | unit = strchr(tree->name, '@'); | |
39 | if (unit) | |
40 | tree->basenamelen = unit - tree->name; | |
41 | else | |
42 | tree->basenamelen = strlen(tree->name); | |
43 | ||
44 | for_each_child(tree, child) | |
45 | fill_fullpaths(child, tree->fullpath); | |
46 | } | |
47 | ||
73ab39b1 GL |
48 | /* Usage related data. */ |
49 | static const char usage_synopsis[] = "dtc [options] <input file>"; | |
c2e7075c | 50 | static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@AThv"; |
73ab39b1 GL |
51 | static struct option const usage_long_opts[] = { |
52 | {"quiet", no_argument, NULL, 'q'}, | |
53 | {"in-format", a_argument, NULL, 'I'}, | |
54 | {"out", a_argument, NULL, 'o'}, | |
55 | {"out-format", a_argument, NULL, 'O'}, | |
56 | {"out-version", a_argument, NULL, 'V'}, | |
57 | {"out-dependency", a_argument, NULL, 'd'}, | |
58 | {"reserve", a_argument, NULL, 'R'}, | |
59 | {"space", a_argument, NULL, 'S'}, | |
60 | {"pad", a_argument, NULL, 'p'}, | |
6f05afcb | 61 | {"align", a_argument, NULL, 'a'}, |
73ab39b1 GL |
62 | {"boot-cpu", a_argument, NULL, 'b'}, |
63 | {"force", no_argument, NULL, 'f'}, | |
64 | {"include", a_argument, NULL, 'i'}, | |
65 | {"sort", no_argument, NULL, 's'}, | |
66 | {"phandle", a_argument, NULL, 'H'}, | |
67 | {"warning", a_argument, NULL, 'W'}, | |
68 | {"error", a_argument, NULL, 'E'}, | |
6f05afcb RH |
69 | {"symbols", no_argument, NULL, '@'}, |
70 | {"auto-alias", no_argument, NULL, 'A'}, | |
c2e7075c | 71 | {"annotate", no_argument, NULL, 'T'}, |
73ab39b1 GL |
72 | {"help", no_argument, NULL, 'h'}, |
73 | {"version", no_argument, NULL, 'v'}, | |
74 | {NULL, no_argument, NULL, 0x0}, | |
75 | }; | |
76 | static const char * const usage_opts_help[] = { | |
77 | "\n\tQuiet: -q suppress warnings, -qq errors, -qqq all", | |
78 | "\n\tInput formats are:\n" | |
79 | "\t\tdts - device tree source text\n" | |
80 | "\t\tdtb - device tree blob\n" | |
81 | "\t\tfs - /proc/device-tree style directory", | |
82 | "\n\tOutput file", | |
83 | "\n\tOutput formats are:\n" | |
84 | "\t\tdts - device tree source text\n" | |
85 | "\t\tdtb - device tree blob\n" | |
f858927f RH |
86 | #ifndef NO_YAML |
87 | "\t\tyaml - device tree encoded as YAML\n" | |
88 | #endif | |
73ab39b1 | 89 | "\t\tasm - assembler source", |
9130ba88 | 90 | "\n\tBlob version to produce, defaults to "stringify(DEFAULT_FDT_VERSION)" (for dtb and asm output)", |
73ab39b1 | 91 | "\n\tOutput dependency file", |
47605971 | 92 | "\n\tMake space for <number> reserve map entries (for dtb and asm output)", |
73ab39b1 GL |
93 | "\n\tMake the blob at least <bytes> long (extra space)", |
94 | "\n\tAdd padding to the blob of <bytes> long (extra space)", | |
6f05afcb | 95 | "\n\tMake the blob align to the <bytes> (extra space)", |
73ab39b1 GL |
96 | "\n\tSet the physical boot cpu", |
97 | "\n\tTry to produce output even if the input tree has errors", | |
98 | "\n\tAdd a path to search for include files", | |
99 | "\n\tSort nodes and properties before outputting (useful for comparing trees)", | |
100 | "\n\tValid phandle formats are:\n" | |
101 | "\t\tlegacy - \"linux,phandle\" properties only\n" | |
102 | "\t\tepapr - \"phandle\" properties only\n" | |
103 | "\t\tboth - Both \"linux,phandle\" and \"phandle\" properties", | |
104 | "\n\tEnable/disable warnings (prefix with \"no-\")", | |
105 | "\n\tEnable/disable errors (prefix with \"no-\")", | |
6f05afcb RH |
106 | "\n\tEnable generation of symbols", |
107 | "\n\tEnable auto-alias of labels", | |
c2e7075c | 108 | "\n\tAnnotate output .dts with input source file and line (-T -T for more details)", |
73ab39b1 GL |
109 | "\n\tPrint this help and exit", |
110 | "\n\tPrint version and exit", | |
111 | NULL, | |
112 | }; | |
a4da2e3e | 113 | |
91feabc2 RH |
114 | static const char *guess_type_by_name(const char *fname, const char *fallback) |
115 | { | |
116 | const char *s; | |
117 | ||
118 | s = strrchr(fname, '.'); | |
119 | if (s == NULL) | |
120 | return fallback; | |
121 | if (!strcasecmp(s, ".dts")) | |
122 | return "dts"; | |
f858927f RH |
123 | if (!strcasecmp(s, ".yaml")) |
124 | return "yaml"; | |
91feabc2 RH |
125 | if (!strcasecmp(s, ".dtb")) |
126 | return "dtb"; | |
127 | return fallback; | |
128 | } | |
129 | ||
130 | static const char *guess_input_format(const char *fname, const char *fallback) | |
131 | { | |
132 | struct stat statbuf; | |
89d12310 | 133 | fdt32_t magic; |
91feabc2 RH |
134 | FILE *f; |
135 | ||
136 | if (stat(fname, &statbuf) != 0) | |
137 | return fallback; | |
138 | ||
139 | if (S_ISDIR(statbuf.st_mode)) | |
140 | return "fs"; | |
141 | ||
142 | if (!S_ISREG(statbuf.st_mode)) | |
143 | return fallback; | |
144 | ||
145 | f = fopen(fname, "r"); | |
146 | if (f == NULL) | |
147 | return fallback; | |
148 | if (fread(&magic, 4, 1, f) != 1) { | |
149 | fclose(f); | |
150 | return fallback; | |
151 | } | |
152 | fclose(f); | |
153 | ||
89d12310 | 154 | if (fdt32_to_cpu(magic) == FDT_MAGIC) |
91feabc2 RH |
155 | return "dtb"; |
156 | ||
157 | return guess_type_by_name(fname, fallback); | |
158 | } | |
159 | ||
a4da2e3e DG |
160 | int main(int argc, char *argv[]) |
161 | { | |
6f05afcb | 162 | struct dt_info *dti; |
91feabc2 RH |
163 | const char *inform = NULL; |
164 | const char *outform = NULL; | |
a4da2e3e | 165 | const char *outname = "-"; |
136ec204 | 166 | const char *depname = NULL; |
47605971 | 167 | bool force = false, sort = false; |
a4da2e3e DG |
168 | const char *arg; |
169 | int opt; | |
a4da2e3e DG |
170 | FILE *outf = NULL; |
171 | int outversion = DEFAULT_FDT_VERSION; | |
ed95d745 | 172 | long long cmdline_boot_cpuid = -1; |
a4da2e3e DG |
173 | |
174 | quiet = 0; | |
175 | reservenum = 0; | |
176 | minsize = 0; | |
177 | padsize = 0; | |
6f05afcb | 178 | alignsize = 0; |
a4da2e3e | 179 | |
73ab39b1 | 180 | while ((opt = util_getopt_long()) != EOF) { |
a4da2e3e DG |
181 | switch (opt) { |
182 | case 'I': | |
183 | inform = optarg; | |
184 | break; | |
185 | case 'O': | |
186 | outform = optarg; | |
187 | break; | |
188 | case 'o': | |
189 | outname = optarg; | |
190 | break; | |
191 | case 'V': | |
192 | outversion = strtol(optarg, NULL, 0); | |
193 | break; | |
136ec204 SW |
194 | case 'd': |
195 | depname = optarg; | |
196 | break; | |
a4da2e3e DG |
197 | case 'R': |
198 | reservenum = strtol(optarg, NULL, 0); | |
199 | break; | |
200 | case 'S': | |
201 | minsize = strtol(optarg, NULL, 0); | |
202 | break; | |
203 | case 'p': | |
204 | padsize = strtol(optarg, NULL, 0); | |
205 | break; | |
6f05afcb RH |
206 | case 'a': |
207 | alignsize = strtol(optarg, NULL, 0); | |
208 | if (!is_power_of_2(alignsize)) | |
209 | die("Invalid argument \"%d\" to -a option\n", | |
89d12310 | 210 | alignsize); |
6f05afcb | 211 | break; |
a4da2e3e | 212 | case 'f': |
47605971 | 213 | force = true; |
a4da2e3e | 214 | break; |
a4da2e3e DG |
215 | case 'q': |
216 | quiet++; | |
217 | break; | |
218 | case 'b': | |
ed95d745 | 219 | cmdline_boot_cpuid = strtoll(optarg, NULL, 0); |
a4da2e3e | 220 | break; |
cd296721 SW |
221 | case 'i': |
222 | srcfile_add_search_path(optarg); | |
223 | break; | |
a4da2e3e | 224 | case 'v': |
73ab39b1 | 225 | util_version(); |
658f29a5 JB |
226 | case 'H': |
227 | if (streq(optarg, "legacy")) | |
228 | phandle_format = PHANDLE_LEGACY; | |
229 | else if (streq(optarg, "epapr")) | |
230 | phandle_format = PHANDLE_EPAPR; | |
231 | else if (streq(optarg, "both")) | |
232 | phandle_format = PHANDLE_BOTH; | |
233 | else | |
234 | die("Invalid argument \"%s\" to -H option\n", | |
235 | optarg); | |
236 | break; | |
237 | ||
238 | case 's': | |
47605971 | 239 | sort = true; |
658f29a5 JB |
240 | break; |
241 | ||
cd296721 SW |
242 | case 'W': |
243 | parse_checks_option(true, false, optarg); | |
244 | break; | |
245 | ||
246 | case 'E': | |
247 | parse_checks_option(false, true, optarg); | |
248 | break; | |
249 | ||
6f05afcb RH |
250 | case '@': |
251 | generate_symbols = 1; | |
252 | break; | |
253 | case 'A': | |
254 | auto_label_aliases = 1; | |
255 | break; | |
c2e7075c RH |
256 | case 'T': |
257 | annotate++; | |
258 | break; | |
6f05afcb | 259 | |
a4da2e3e | 260 | case 'h': |
73ab39b1 | 261 | usage(NULL); |
a4da2e3e | 262 | default: |
73ab39b1 | 263 | usage("unknown option"); |
a4da2e3e DG |
264 | } |
265 | } | |
266 | ||
267 | if (argc > (optind+1)) | |
73ab39b1 | 268 | usage("missing files"); |
a4da2e3e DG |
269 | else if (argc < (optind+1)) |
270 | arg = "-"; | |
271 | else | |
272 | arg = argv[optind]; | |
273 | ||
274 | /* minsize and padsize are mutually exclusive */ | |
ed95d745 | 275 | if (minsize && padsize) |
a4da2e3e | 276 | die("Can't set both -p and -S\n"); |
a4da2e3e | 277 | |
136ec204 SW |
278 | if (depname) { |
279 | depfile = fopen(depname, "w"); | |
280 | if (!depfile) | |
281 | die("Couldn't open dependency file %s: %s\n", depname, | |
282 | strerror(errno)); | |
283 | fprintf(depfile, "%s:", outname); | |
284 | } | |
285 | ||
91feabc2 RH |
286 | if (inform == NULL) |
287 | inform = guess_input_format(arg, "dts"); | |
288 | if (outform == NULL) { | |
289 | outform = guess_type_by_name(outname, NULL); | |
290 | if (outform == NULL) { | |
291 | if (streq(inform, "dts")) | |
292 | outform = "dtb"; | |
293 | else | |
294 | outform = "dts"; | |
295 | } | |
296 | } | |
c2e7075c RH |
297 | if (annotate && (!streq(inform, "dts") || !streq(outform, "dts"))) |
298 | die("--annotate requires -I dts -O dts\n"); | |
ed95d745 | 299 | if (streq(inform, "dts")) |
6f05afcb | 300 | dti = dt_from_source(arg); |
ed95d745 | 301 | else if (streq(inform, "fs")) |
6f05afcb | 302 | dti = dt_from_fs(arg); |
ed95d745 | 303 | else if(streq(inform, "dtb")) |
6f05afcb | 304 | dti = dt_from_blob(arg); |
ed95d745 | 305 | else |
a4da2e3e | 306 | die("Unknown input format \"%s\"\n", inform); |
a4da2e3e | 307 | |
89d12310 RH |
308 | dti->outname = outname; |
309 | ||
136ec204 SW |
310 | if (depfile) { |
311 | fputc('\n', depfile); | |
312 | fclose(depfile); | |
313 | } | |
314 | ||
ed95d745 | 315 | if (cmdline_boot_cpuid != -1) |
6f05afcb RH |
316 | dti->boot_cpuid_phys = cmdline_boot_cpuid; |
317 | ||
318 | fill_fullpaths(dti->dt, ""); | |
6f05afcb RH |
319 | |
320 | /* on a plugin, generate by default */ | |
321 | if (dti->dtsflags & DTSF_PLUGIN) { | |
322 | generate_fixups = 1; | |
323 | } | |
a4da2e3e | 324 | |
9130ba88 RH |
325 | process_checks(force, dti); |
326 | ||
6f05afcb RH |
327 | if (auto_label_aliases) |
328 | generate_label_tree(dti, "aliases", false); | |
329 | ||
330 | if (generate_symbols) | |
331 | generate_label_tree(dti, "__symbols__", true); | |
332 | ||
333 | if (generate_fixups) { | |
334 | generate_fixups_tree(dti, "__fixups__"); | |
335 | generate_local_fixups_tree(dti, "__local_fixups__"); | |
336 | } | |
a4da2e3e | 337 | |
658f29a5 | 338 | if (sort) |
6f05afcb | 339 | sort_tree(dti); |
a4da2e3e DG |
340 | |
341 | if (streq(outname, "-")) { | |
342 | outf = stdout; | |
343 | } else { | |
47605971 | 344 | outf = fopen(outname, "wb"); |
a4da2e3e DG |
345 | if (! outf) |
346 | die("Couldn't open output file %s: %s\n", | |
347 | outname, strerror(errno)); | |
348 | } | |
349 | ||
350 | if (streq(outform, "dts")) { | |
6f05afcb | 351 | dt_to_source(outf, dti); |
f858927f RH |
352 | #ifndef NO_YAML |
353 | } else if (streq(outform, "yaml")) { | |
354 | if (!streq(inform, "dts")) | |
355 | die("YAML output format requires dts input format\n"); | |
356 | dt_to_yaml(outf, dti); | |
357 | #endif | |
a4da2e3e | 358 | } else if (streq(outform, "dtb")) { |
6f05afcb | 359 | dt_to_blob(outf, dti, outversion); |
a4da2e3e | 360 | } else if (streq(outform, "asm")) { |
6f05afcb | 361 | dt_to_asm(outf, dti, outversion); |
a4da2e3e DG |
362 | } else if (streq(outform, "null")) { |
363 | /* do nothing */ | |
364 | } else { | |
365 | die("Unknown output format \"%s\"\n", outform); | |
366 | } | |
367 | ||
368 | exit(0); | |
369 | } |