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 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 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 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, check = 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 'c': 147 check = 1; 148 break; 149 case 'q': 150 quiet++; 151 break; 152 case 'b': 153 cmdline_boot_cpuid = strtoll(optarg, NULL, 0); 154 break; 155 case 'v': 156 printf("Version: %s\n", DTC_VERSION); 157 exit(0); 158 case 'H': 159 if (streq(optarg, "legacy")) 160 phandle_format = PHANDLE_LEGACY; 161 else if (streq(optarg, "epapr")) 162 phandle_format = PHANDLE_EPAPR; 163 else if (streq(optarg, "both")) 164 phandle_format = PHANDLE_BOTH; 165 else 166 die("Invalid argument \"%s\" to -H option\n", 167 optarg); 168 break; 169 170 case 's': 171 sort = 1; 172 break; 173 174 case 'h': 175 default: 176 usage(); 177 } 178 } 179 180 if (argc > (optind+1)) 181 usage(); 182 else if (argc < (optind+1)) 183 arg = "-"; 184 else 185 arg = argv[optind]; 186 187 /* minsize and padsize are mutually exclusive */ 188 if (minsize && padsize) 189 die("Can't set both -p and -S\n"); 190 191 if (minsize) 192 fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n"); 193 194 fprintf(stderr, "DTC: %s->%s on file \"%s\"\n", 195 inform, outform, arg); 196 197 if (depname) { 198 depfile = fopen(depname, "w"); 199 if (!depfile) 200 die("Couldn't open dependency file %s: %s\n", depname, 201 strerror(errno)); 202 fprintf(depfile, "%s:", outname); 203 } 204 205 if (streq(inform, "dts")) 206 bi = dt_from_source(arg); 207 else if (streq(inform, "fs")) 208 bi = dt_from_fs(arg); 209 else if(streq(inform, "dtb")) 210 bi = dt_from_blob(arg); 211 else 212 die("Unknown input format \"%s\"\n", inform); 213 214 if (depfile) { 215 fputc('\n', depfile); 216 fclose(depfile); 217 } 218 219 if (cmdline_boot_cpuid != -1) 220 bi->boot_cpuid_phys = cmdline_boot_cpuid; 221 222 fill_fullpaths(bi->dt, ""); 223 process_checks(force, bi); 224 225 if (sort) 226 sort_tree(bi); 227 228 if (streq(outname, "-")) { 229 outf = stdout; 230 } else { 231 outf = fopen(outname, "w"); 232 if (! outf) 233 die("Couldn't open output file %s: %s\n", 234 outname, strerror(errno)); 235 } 236 237 if (streq(outform, "dts")) { 238 dt_to_source(outf, bi); 239 } else if (streq(outform, "dtb")) { 240 dt_to_blob(outf, bi, outversion); 241 } else if (streq(outform, "asm")) { 242 dt_to_asm(outf, bi, outversion); 243 } else if (streq(outform, "null")) { 244 /* do nothing */ 245 } else { 246 die("Unknown output format \"%s\"\n", outform); 247 } 248 249 exit(0); 250 } 251