dtc.c revision 238742
1204431Sraj/* 2204431Sraj * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. 3204431Sraj * 4204431Sraj * 5204431Sraj * This program is free software; you can redistribute it and/or 6204431Sraj * modify it under the terms of the GNU General Public License as 7204431Sraj * published by the Free Software Foundation; either version 2 of the 8204431Sraj * License, or (at your option) any later version. 9204431Sraj * 10204431Sraj * This program is distributed in the hope that it will be useful, 11204431Sraj * but WITHOUT ANY WARRANTY; without even the implied warranty of 12204431Sraj * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13204431Sraj * General Public License for more details. 14204431Sraj * 15204431Sraj * You should have received a copy of the GNU General Public License 16204431Sraj * along with this program; if not, write to the Free Software 17204431Sraj * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 18204431Sraj * USA 19204431Sraj */ 20204431Sraj 21204431Sraj#include "dtc.h" 22204431Sraj#include "srcpos.h" 23204431Sraj 24204431Sraj#include "version_gen.h" 25204431Sraj 26204431Sraj/* 27204431Sraj * Command line options 28204431Sraj */ 29204431Srajint quiet; /* Level of quietness */ 30204431Srajint reservenum; /* Number of memory reservation slots */ 31204431Srajint minsize; /* Minimum blob size */ 32204431Srajint padsize; /* Additional padding to blob */ 33204433Srajint phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */ 34204431Sraj 35204431Srajstatic void fill_fullpaths(struct node *tree, const char *prefix) 36204431Sraj{ 37204431Sraj struct node *child; 38204431Sraj const char *unit; 39204431Sraj 40204431Sraj tree->fullpath = join_path(prefix, tree->name); 41204431Sraj 42204431Sraj unit = strchr(tree->name, '@'); 43204431Sraj if (unit) 44204431Sraj tree->basenamelen = unit - tree->name; 45204431Sraj else 46204431Sraj tree->basenamelen = strlen(tree->name); 47204431Sraj 48204431Sraj for_each_child(tree, child) 49204431Sraj fill_fullpaths(child, tree->fullpath); 50204431Sraj} 51204431Sraj 52204431Srajstatic void __attribute__ ((noreturn)) usage(void) 53204431Sraj{ 54204431Sraj fprintf(stderr, "Usage:\n"); 55204431Sraj fprintf(stderr, "\tdtc [options] <input file>\n"); 56204431Sraj fprintf(stderr, "\nOptions:\n"); 57204431Sraj fprintf(stderr, "\t-h\n"); 58204431Sraj fprintf(stderr, "\t\tThis help text\n"); 59204431Sraj fprintf(stderr, "\t-q\n"); 60204431Sraj fprintf(stderr, "\t\tQuiet: -q suppress warnings, -qq errors, -qqq all\n"); 61204431Sraj fprintf(stderr, "\t-I <input format>\n"); 62204431Sraj fprintf(stderr, "\t\tInput formats are:\n"); 63204431Sraj fprintf(stderr, "\t\t\tdts - device tree source text\n"); 64204431Sraj fprintf(stderr, "\t\t\tdtb - device tree blob\n"); 65204431Sraj fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n"); 66204431Sraj fprintf(stderr, "\t-o <output file>\n"); 67204431Sraj fprintf(stderr, "\t-O <output format>\n"); 68204431Sraj fprintf(stderr, "\t\tOutput formats are:\n"); 69204431Sraj fprintf(stderr, "\t\t\tdts - device tree source text\n"); 70204431Sraj fprintf(stderr, "\t\t\tdtb - device tree blob\n"); 71204431Sraj fprintf(stderr, "\t\t\tasm - assembler source\n"); 72204431Sraj fprintf(stderr, "\t-V <output version>\n"); 73204431Sraj fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION); 74238742Simp fprintf(stderr, "\t-d <output dependency file>\n"); 75204431Sraj fprintf(stderr, "\t-R <number>\n"); 76204431Sraj fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n"); 77204431Sraj fprintf(stderr, "\t-S <bytes>\n"); 78204431Sraj fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n"); 79204431Sraj fprintf(stderr, "\t-p <bytes>\n"); 80204431Sraj fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n"); 81204431Sraj fprintf(stderr, "\t-b <number>\n"); 82204431Sraj fprintf(stderr, "\t\tSet the physical boot cpu\n"); 83204431Sraj fprintf(stderr, "\t-f\n"); 84204431Sraj fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n"); 85238742Simp fprintf(stderr, "\t-i\n"); 86238742Simp fprintf(stderr, "\t\tAdd a path to search for include files\n"); 87238742Simp fprintf(stderr, "\t-s\n"); 88238742Simp fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n"); 89204431Sraj fprintf(stderr, "\t-v\n"); 90204431Sraj fprintf(stderr, "\t\tPrint DTC version and exit\n"); 91204433Sraj fprintf(stderr, "\t-H <phandle format>\n"); 92204433Sraj fprintf(stderr, "\t\tphandle formats are:\n"); 93204433Sraj fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n"); 94204433Sraj fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n"); 95204433Sraj fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n"); 96238742Simp fprintf(stderr, "\t-W [no-]<checkname>\n"); 97238742Simp fprintf(stderr, "\t-E [no-]<checkname>\n"); 98238742Simp fprintf(stderr, "\t\t\tenable or disable warnings and errors\n"); 99204431Sraj exit(3); 100204431Sraj} 101204431Sraj 102204431Srajint main(int argc, char *argv[]) 103204431Sraj{ 104204431Sraj struct boot_info *bi; 105204431Sraj const char *inform = "dts"; 106204431Sraj const char *outform = "dts"; 107204431Sraj const char *outname = "-"; 108238742Simp const char *depname = NULL; 109238742Simp int force = 0, sort = 0; 110204431Sraj const char *arg; 111204431Sraj int opt; 112204431Sraj FILE *outf = NULL; 113204431Sraj int outversion = DEFAULT_FDT_VERSION; 114204431Sraj long long cmdline_boot_cpuid = -1; 115204431Sraj 116204431Sraj quiet = 0; 117204431Sraj reservenum = 0; 118204431Sraj minsize = 0; 119204431Sraj padsize = 0; 120204431Sraj 121238742Simp while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fqb:i:vH:sW:E:")) 122238742Simp != EOF) { 123204431Sraj switch (opt) { 124204431Sraj case 'I': 125204431Sraj inform = optarg; 126204431Sraj break; 127204431Sraj case 'O': 128204431Sraj outform = optarg; 129204431Sraj break; 130204431Sraj case 'o': 131204431Sraj outname = optarg; 132204431Sraj break; 133204431Sraj case 'V': 134204431Sraj outversion = strtol(optarg, NULL, 0); 135204431Sraj break; 136238742Simp case 'd': 137238742Simp depname = optarg; 138238742Simp break; 139204431Sraj case 'R': 140204431Sraj reservenum = strtol(optarg, NULL, 0); 141204431Sraj break; 142204431Sraj case 'S': 143204431Sraj minsize = strtol(optarg, NULL, 0); 144204431Sraj break; 145204431Sraj case 'p': 146204431Sraj padsize = strtol(optarg, NULL, 0); 147204431Sraj break; 148204431Sraj case 'f': 149204431Sraj force = 1; 150204431Sraj break; 151204431Sraj case 'q': 152204431Sraj quiet++; 153204431Sraj break; 154204431Sraj case 'b': 155204431Sraj cmdline_boot_cpuid = strtoll(optarg, NULL, 0); 156204431Sraj break; 157238742Simp case 'i': 158238742Simp srcfile_add_search_path(optarg); 159238742Simp break; 160204431Sraj case 'v': 161204431Sraj printf("Version: %s\n", DTC_VERSION); 162204431Sraj exit(0); 163204433Sraj case 'H': 164204433Sraj if (streq(optarg, "legacy")) 165204433Sraj phandle_format = PHANDLE_LEGACY; 166204433Sraj else if (streq(optarg, "epapr")) 167204433Sraj phandle_format = PHANDLE_EPAPR; 168204433Sraj else if (streq(optarg, "both")) 169204433Sraj phandle_format = PHANDLE_BOTH; 170204433Sraj else 171204433Sraj die("Invalid argument \"%s\" to -H option\n", 172204433Sraj optarg); 173204433Sraj break; 174204433Sraj 175238742Simp case 's': 176238742Simp sort = 1; 177238742Simp break; 178238742Simp 179238742Simp case 'W': 180238742Simp parse_checks_option(true, false, optarg); 181238742Simp break; 182238742Simp 183238742Simp case 'E': 184238742Simp parse_checks_option(false, true, optarg); 185238742Simp break; 186238742Simp 187204431Sraj case 'h': 188204431Sraj default: 189204431Sraj usage(); 190204431Sraj } 191204431Sraj } 192204431Sraj 193204431Sraj if (argc > (optind+1)) 194204431Sraj usage(); 195204431Sraj else if (argc < (optind+1)) 196204431Sraj arg = "-"; 197204431Sraj else 198204431Sraj arg = argv[optind]; 199204431Sraj 200204431Sraj /* minsize and padsize are mutually exclusive */ 201204431Sraj if (minsize && padsize) 202204431Sraj die("Can't set both -p and -S\n"); 203204431Sraj 204204433Sraj if (minsize) 205204433Sraj fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n"); 206204433Sraj 207238742Simp if (depname) { 208238742Simp depfile = fopen(depname, "w"); 209238742Simp if (!depfile) 210238742Simp die("Couldn't open dependency file %s: %s\n", depname, 211238742Simp strerror(errno)); 212238742Simp fprintf(depfile, "%s:", outname); 213238742Simp } 214204431Sraj 215204431Sraj if (streq(inform, "dts")) 216204431Sraj bi = dt_from_source(arg); 217204431Sraj else if (streq(inform, "fs")) 218204431Sraj bi = dt_from_fs(arg); 219204431Sraj else if(streq(inform, "dtb")) 220204431Sraj bi = dt_from_blob(arg); 221204431Sraj else 222204431Sraj die("Unknown input format \"%s\"\n", inform); 223204431Sraj 224238742Simp if (depfile) { 225238742Simp fputc('\n', depfile); 226238742Simp fclose(depfile); 227238742Simp } 228238742Simp 229204431Sraj if (cmdline_boot_cpuid != -1) 230204431Sraj bi->boot_cpuid_phys = cmdline_boot_cpuid; 231204431Sraj 232204431Sraj fill_fullpaths(bi->dt, ""); 233204431Sraj process_checks(force, bi); 234204431Sraj 235238742Simp if (sort) 236238742Simp sort_tree(bi); 237204431Sraj 238204431Sraj if (streq(outname, "-")) { 239204431Sraj outf = stdout; 240204431Sraj } else { 241204431Sraj outf = fopen(outname, "w"); 242204431Sraj if (! outf) 243204431Sraj die("Couldn't open output file %s: %s\n", 244204431Sraj outname, strerror(errno)); 245204431Sraj } 246204431Sraj 247204431Sraj if (streq(outform, "dts")) { 248204431Sraj dt_to_source(outf, bi); 249204431Sraj } else if (streq(outform, "dtb")) { 250204431Sraj dt_to_blob(outf, bi, outversion); 251204431Sraj } else if (streq(outform, "asm")) { 252204431Sraj dt_to_asm(outf, bi, outversion); 253204431Sraj } else if (streq(outform, "null")) { 254204431Sraj /* do nothing */ 255204431Sraj } else { 256204431Sraj die("Unknown output format \"%s\"\n", outform); 257204431Sraj } 258204431Sraj 259204431Sraj exit(0); 260204431Sraj} 261