dtc.c revision 238742
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-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-i\n"); 86 fprintf(stderr, "\t\tAdd a path to search for include files\n"); 87 fprintf(stderr, "\t-s\n"); 88 fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n"); 89 fprintf(stderr, "\t-v\n"); 90 fprintf(stderr, "\t\tPrint DTC version and exit\n"); 91 fprintf(stderr, "\t-H <phandle format>\n"); 92 fprintf(stderr, "\t\tphandle formats are:\n"); 93 fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n"); 94 fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n"); 95 fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n"); 96 fprintf(stderr, "\t-W [no-]<checkname>\n"); 97 fprintf(stderr, "\t-E [no-]<checkname>\n"); 98 fprintf(stderr, "\t\t\tenable or disable warnings and errors\n"); 99 exit(3); 100} 101 102int main(int argc, char *argv[]) 103{ 104 struct boot_info *bi; 105 const char *inform = "dts"; 106 const char *outform = "dts"; 107 const char *outname = "-"; 108 const char *depname = NULL; 109 int force = 0, sort = 0; 110 const char *arg; 111 int opt; 112 FILE *outf = NULL; 113 int outversion = DEFAULT_FDT_VERSION; 114 long long cmdline_boot_cpuid = -1; 115 116 quiet = 0; 117 reservenum = 0; 118 minsize = 0; 119 padsize = 0; 120 121 while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fqb:i:vH:sW:E:")) 122 != EOF) { 123 switch (opt) { 124 case 'I': 125 inform = optarg; 126 break; 127 case 'O': 128 outform = optarg; 129 break; 130 case 'o': 131 outname = optarg; 132 break; 133 case 'V': 134 outversion = strtol(optarg, NULL, 0); 135 break; 136 case 'd': 137 depname = optarg; 138 break; 139 case 'R': 140 reservenum = strtol(optarg, NULL, 0); 141 break; 142 case 'S': 143 minsize = strtol(optarg, NULL, 0); 144 break; 145 case 'p': 146 padsize = strtol(optarg, NULL, 0); 147 break; 148 case 'f': 149 force = 1; 150 break; 151 case 'q': 152 quiet++; 153 break; 154 case 'b': 155 cmdline_boot_cpuid = strtoll(optarg, NULL, 0); 156 break; 157 case 'i': 158 srcfile_add_search_path(optarg); 159 break; 160 case 'v': 161 printf("Version: %s\n", DTC_VERSION); 162 exit(0); 163 case 'H': 164 if (streq(optarg, "legacy")) 165 phandle_format = PHANDLE_LEGACY; 166 else if (streq(optarg, "epapr")) 167 phandle_format = PHANDLE_EPAPR; 168 else if (streq(optarg, "both")) 169 phandle_format = PHANDLE_BOTH; 170 else 171 die("Invalid argument \"%s\" to -H option\n", 172 optarg); 173 break; 174 175 case 's': 176 sort = 1; 177 break; 178 179 case 'W': 180 parse_checks_option(true, false, optarg); 181 break; 182 183 case 'E': 184 parse_checks_option(false, true, optarg); 185 break; 186 187 case 'h': 188 default: 189 usage(); 190 } 191 } 192 193 if (argc > (optind+1)) 194 usage(); 195 else if (argc < (optind+1)) 196 arg = "-"; 197 else 198 arg = argv[optind]; 199 200 /* minsize and padsize are mutually exclusive */ 201 if (minsize && padsize) 202 die("Can't set both -p and -S\n"); 203 204 if (minsize) 205 fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n"); 206 207 if (depname) { 208 depfile = fopen(depname, "w"); 209 if (!depfile) 210 die("Couldn't open dependency file %s: %s\n", depname, 211 strerror(errno)); 212 fprintf(depfile, "%s:", outname); 213 } 214 215 if (streq(inform, "dts")) 216 bi = dt_from_source(arg); 217 else if (streq(inform, "fs")) 218 bi = dt_from_fs(arg); 219 else if(streq(inform, "dtb")) 220 bi = dt_from_blob(arg); 221 else 222 die("Unknown input format \"%s\"\n", inform); 223 224 if (depfile) { 225 fputc('\n', depfile); 226 fclose(depfile); 227 } 228 229 if (cmdline_boot_cpuid != -1) 230 bi->boot_cpuid_phys = cmdline_boot_cpuid; 231 232 fill_fullpaths(bi->dt, ""); 233 process_checks(force, bi); 234 235 if (sort) 236 sort_tree(bi); 237 238 if (streq(outname, "-")) { 239 outf = stdout; 240 } else { 241 outf = fopen(outname, "w"); 242 if (! outf) 243 die("Couldn't open output file %s: %s\n", 244 outname, strerror(errno)); 245 } 246 247 if (streq(outform, "dts")) { 248 dt_to_source(outf, bi); 249 } else if (streq(outform, "dtb")) { 250 dt_to_blob(outf, bi, outversion); 251 } else if (streq(outform, "asm")) { 252 dt_to_asm(outf, bi, outversion); 253 } else if (streq(outform, "null")) { 254 /* do nothing */ 255 } else { 256 die("Unknown output format \"%s\"\n", outform); 257 } 258 259 exit(0); 260} 261