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 */
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 */
34
fill_fullpaths(struct node * tree,const char * prefix)35 static 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
usage(void)52 static 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-d <output dependency file>\n");
75 fprintf(stderr, "\t-R <number>\n");
76 fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
77 fprintf(stderr, "\t-S <bytes>\n");
78 fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n");
79 fprintf(stderr, "\t-p <bytes>\n");
80 fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n");
81 fprintf(stderr, "\t-b <number>\n");
82 fprintf(stderr, "\t\tSet the physical boot cpu\n");
83 fprintf(stderr, "\t-f\n");
84 fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
85 fprintf(stderr, "\t-s\n");
86 fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n");
87 fprintf(stderr, "\t-v\n");
88 fprintf(stderr, "\t\tPrint DTC version and exit\n");
89 fprintf(stderr, "\t-H <phandle format>\n");
90 fprintf(stderr, "\t\tphandle formats are:\n");
91 fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n");
92 fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n");
93 fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n");
94 exit(3);
95 }
96
main(int argc,char * argv[])97 int main(int argc, char *argv[])
98 {
99 struct boot_info *bi;
100 const char *inform = "dts";
101 const char *outform = "dts";
102 const char *outname = "-";
103 const char *depname = NULL;
104 int force = 0, sort = 0;
105 const char *arg;
106 int opt;
107 FILE *outf = NULL;
108 int outversion = DEFAULT_FDT_VERSION;
109 long long cmdline_boot_cpuid = -1;
110
111 quiet = 0;
112 reservenum = 0;
113 minsize = 0;
114 padsize = 0;
115
116 while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fcqb:vH:s"))
117 != EOF) {
118 switch (opt) {
119 case 'I':
120 inform = optarg;
121 break;
122 case 'O':
123 outform = optarg;
124 break;
125 case 'o':
126 outname = optarg;
127 break;
128 case 'V':
129 outversion = strtol(optarg, NULL, 0);
130 break;
131 case 'd':
132 depname = optarg;
133 break;
134 case 'R':
135 reservenum = strtol(optarg, NULL, 0);
136 break;
137 case 'S':
138 minsize = strtol(optarg, NULL, 0);
139 break;
140 case 'p':
141 padsize = strtol(optarg, NULL, 0);
142 break;
143 case 'f':
144 force = 1;
145 break;
146 case 'q':
147 quiet++;
148 break;
149 case 'b':
150 cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
151 break;
152 case 'v':
153 printf("Version: %s\n", DTC_VERSION);
154 exit(0);
155 case 'H':
156 if (streq(optarg, "legacy"))
157 phandle_format = PHANDLE_LEGACY;
158 else if (streq(optarg, "epapr"))
159 phandle_format = PHANDLE_EPAPR;
160 else if (streq(optarg, "both"))
161 phandle_format = PHANDLE_BOTH;
162 else
163 die("Invalid argument \"%s\" to -H option\n",
164 optarg);
165 break;
166
167 case 's':
168 sort = 1;
169 break;
170
171 case 'h':
172 default:
173 usage();
174 }
175 }
176
177 if (argc > (optind+1))
178 usage();
179 else if (argc < (optind+1))
180 arg = "-";
181 else
182 arg = argv[optind];
183
184 /* minsize and padsize are mutually exclusive */
185 if (minsize && padsize)
186 die("Can't set both -p and -S\n");
187
188 if (minsize)
189 fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n");
190
191 fprintf(stderr, "DTC: %s->%s on file \"%s\"\n",
192 inform, outform, arg);
193
194 if (depname) {
195 depfile = fopen(depname, "w");
196 if (!depfile)
197 die("Couldn't open dependency file %s: %s\n", depname,
198 strerror(errno));
199 fprintf(depfile, "%s:", outname);
200 }
201
202 if (streq(inform, "dts"))
203 bi = dt_from_source(arg);
204 else if (streq(inform, "fs"))
205 bi = dt_from_fs(arg);
206 else if(streq(inform, "dtb"))
207 bi = dt_from_blob(arg);
208 else
209 die("Unknown input format \"%s\"\n", inform);
210
211 if (depfile) {
212 fputc('\n', depfile);
213 fclose(depfile);
214 }
215
216 if (cmdline_boot_cpuid != -1)
217 bi->boot_cpuid_phys = cmdline_boot_cpuid;
218
219 fill_fullpaths(bi->dt, "");
220 process_checks(force, bi);
221
222 if (sort)
223 sort_tree(bi);
224
225 if (streq(outname, "-")) {
226 outf = stdout;
227 } else {
228 outf = fopen(outname, "w");
229 if (! outf)
230 die("Couldn't open output file %s: %s\n",
231 outname, strerror(errno));
232 }
233
234 if (streq(outform, "dts")) {
235 dt_to_source(outf, bi);
236 } else if (streq(outform, "dtb")) {
237 dt_to_blob(outf, bi, outversion);
238 } else if (streq(outform, "asm")) {
239 dt_to_asm(outf, bi, outversion);
240 } else if (streq(outform, "null")) {
241 /* do nothing */
242 } else {
243 die("Unknown output format \"%s\"\n", outform);
244 }
245
246 exit(0);
247 }
248