2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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.
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.
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
27 * Command line options
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 */
33 int phandle_format
= PHANDLE_BOTH
; /* Use linux,phandle or phandle properties */
35 static void fill_fullpaths(struct node
*tree
, const char *prefix
)
40 tree
->fullpath
= join_path(prefix
, tree
->name
);
42 unit
= strchr(tree
->name
, '@');
44 tree
->basenamelen
= unit
- tree
->name
;
46 tree
->basenamelen
= strlen(tree
->name
);
48 for_each_child(tree
, child
)
49 fill_fullpaths(child
, tree
->fullpath
);
52 /* Usage related data. */
53 #define FDT_VERSION(version) _FDT_VERSION(version)
54 #define _FDT_VERSION(version) #version
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},
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",
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",
109 static const char *guess_type_by_name(const char *fname
, const char *fallback
)
113 s
= strrchr(fname
, '.');
116 if (!strcasecmp(s
, ".dts"))
118 if (!strcasecmp(s
, ".dtb"))
123 static const char *guess_input_format(const char *fname
, const char *fallback
)
129 if (stat(fname
, &statbuf
) != 0)
132 if (S_ISDIR(statbuf
.st_mode
))
135 if (!S_ISREG(statbuf
.st_mode
))
138 f
= fopen(fname
, "r");
141 if (fread(&magic
, 4, 1, f
) != 1) {
147 magic
= fdt32_to_cpu(magic
);
148 if (magic
== FDT_MAGIC
)
151 return guess_type_by_name(fname
, fallback
);
154 int main(int argc
, char *argv
[])
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;
165 int outversion
= DEFAULT_FDT_VERSION
;
166 long long cmdline_boot_cpuid
= -1;
173 while ((opt
= util_getopt_long()) != EOF
) {
185 outversion
= strtol(optarg
, NULL
, 0);
191 reservenum
= strtol(optarg
, NULL
, 0);
194 minsize
= strtol(optarg
, NULL
, 0);
197 padsize
= strtol(optarg
, NULL
, 0);
206 cmdline_boot_cpuid
= strtoll(optarg
, NULL
, 0);
209 srcfile_add_search_path(optarg
);
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
;
221 die("Invalid argument \"%s\" to -H option\n",
230 parse_checks_option(true, false, optarg
);
234 parse_checks_option(false, true, optarg
);
240 usage("unknown option");
244 if (argc
> (optind
+1))
245 usage("missing files");
246 else if (argc
< (optind
+1))
251 /* minsize and padsize are mutually exclusive */
252 if (minsize
&& padsize
)
253 die("Can't set both -p and -S\n");
256 depfile
= fopen(depname
, "w");
258 die("Couldn't open dependency file %s: %s\n", depname
,
260 fprintf(depfile
, "%s:", outname
);
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"))
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
);
281 die("Unknown input format \"%s\"\n", inform
);
284 fputc('\n', depfile
);
288 if (cmdline_boot_cpuid
!= -1)
289 bi
->boot_cpuid_phys
= cmdline_boot_cpuid
;
291 fill_fullpaths(bi
->dt
, "");
292 process_checks(force
, bi
);
297 if (streq(outname
, "-")) {
300 outf
= fopen(outname
, "wb");
302 die("Couldn't open output file %s: %s\n",
303 outname
, strerror(errno
));
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")) {
315 die("Unknown output format \"%s\"\n", outform
);
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