binutils/sysinfo.y

   1 /* Copyright 2001 Free Software Foundation, Inc.
   2    Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
   3
   4 This file is part of GNU binutils.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 %{
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 extern char *word;
  25 extern char writecode;
  26 extern int number;
  27 extern int unit;
  28 char nice_name[1000];
  29 char *it;
  30 int sofar;
  31 int width;
  32 int code;
  33 char * repeat;
  34 char *oldrepeat;
  35 char *name;
  36 int rdepth;
  37 char *loop [] = {"","n","m","/*BAD*/"};
  38 char *names[] = {" ","[n]","[n][m]"};
  39 char *pnames[]= {"","*","**"};
  40 %}
  41
  42
  43 %union {
  44  int i;
  45  char *s;
  46 }
  47 %token COND
  48 %token REPEAT
  49 %token '(' ')'
  50 %token <s> TYPE
  51 %token <s> NAME
  52 %token <i> NUMBER UNIT
  53 %type <i> attr_size
  54 %type <s> attr_desc attr_id attr_type
  55 %%
  56
  57 top:  {
  58   switch (writecode)
  59     {
  60     case 'i':
  61       printf("#ifdef SYSROFF_SWAP_IN\n");
  62       break;
  63     case 'p':
  64       printf("#ifdef SYSROFF_p\n");
  65       break;
  66     case 'd':
  67       break;
  68     case 'g':
  69       printf("#ifdef SYSROFF_SWAP_OUT\n");
  70       break;
  71     case 'c':
  72       printf("#ifdef SYSROFF_PRINT\n");
  73       printf("#include <stdio.h>\n");
  74       printf("#include <stdlib.h>\n");
  75       break;
  76     }
  77  }
  78 it_list {
  79   switch (writecode) {
  80   case 'i':
  81   case 'p':
  82   case 'g':
  83   case 'c':
  84     printf("#endif\n");
  85     break;
  86   case 'd':
  87     break;
  88   }
  89 }
  90
  91   ;
  92
  93
  94 it_list: it it_list
  95   |
  96   ;
  97
  98 it:
  99         '(' NAME NUMBER
 100       {
 101         it = $2; code = $3;
 102         switch (writecode)
 103           {
 104           case 'd':
 105             printf("\n\n\n#define IT_%s_CODE 0x%x\n", it,code);
 106             printf("struct IT_%s { \n", it);
 107             break;
 108           case 'i':
 109             printf("void sysroff_swap_%s_in(ptr)\n",$2);
 110             printf("struct IT_%s *ptr;\n", it);
 111             printf("{\n");
 112             printf("char raw[255];\n");
 113             printf("\tint idx = 0 ;\n");
 114             printf("\tint size;\n");
 115             printf("memset(raw,0,255);\n");
 116             printf("memset(ptr,0,sizeof(*ptr));\n");
 117             printf("size = fillup(raw);\n");
 118             break;
 119           case 'g':
 120             printf("void sysroff_swap_%s_out(file,ptr)\n",$2);
 121             printf("FILE * file;\n");
 122             printf("struct IT_%s *ptr;\n", it);
 123             printf("{\n");
 124             printf("\tchar raw[255];\n");
 125             printf("\tint idx = 16 ;\n");
 126             printf("\tmemset (raw, 0, 255);\n");
 127             printf("\tcode = IT_%s_CODE;\n", it);
 128             break;
 129           case 'o':
 130             printf("void sysroff_swap_%s_out(abfd,ptr)\n",$2);
 131             printf("bfd * abfd;\n");
 132             printf("struct IT_%s *ptr;\n",it);
 133             printf("{\n");
 134             printf("int idx = 0 ;\n");
 135             break;
 136           case 'c':
 137             printf("void sysroff_print_%s_out(ptr)\n",$2);
 138             printf("struct IT_%s *ptr;\n", it);
 139             printf("{\n");
 140             printf("itheader(\"%s\", IT_%s_CODE);\n",$2,$2);
 141             break;
 142
 143           case 't':
 144             break;
 145           }
 146
 147       }
 148         it_field_list
 149 ')'
 150 {
 151   switch (writecode) {
 152   case 'd':
 153     printf("};\n");
 154     break;
 155   case 'g':
 156     printf("\tchecksum(file,raw, idx, IT_%s_CODE);\n", it);
 157
 158   case 'i':
 159
 160   case 'o':
 161   case 'c':
 162     printf("}\n");
 163   }
 164 }
 165 ;
 166
 167
 168
 169 it_field_list:
 170                 it_field it_field_list
 171         |       cond_it_field it_field_list
 172         |       repeat_it_field it_field_list
 173         |
 174         ;
 175
 176 repeat_it_field: '(' REPEAT NAME
 177         {
 178           rdepth++;
 179           switch (writecode)
 180             {
 181             case 'c':
 182               if (rdepth==1)
 183               printf("\tprintf(\"repeat %%d\\n\", %s);\n",$3);
 184               if (rdepth==2)
 185               printf("\tprintf(\"repeat %%d\\n\", %s[n]);\n",$3);
 186             case 'i':
 187             case 'g':
 188             case 'o':
 189
 190               if (rdepth==1)
 191                 {
 192               printf("\t{ int n; for (n = 0; n < %s; n++) {\n",    $3);
 193             }
 194               if (rdepth == 2) {
 195               printf("\t{ int m; for (m = 0; m < %s[n]; m++) {\n",    $3);
 196             }
 197
 198               break;
 199             }
 200
 201           oldrepeat = repeat;
 202          repeat = $3;
 203         }
 204
 205          it_field_list ')'
 206
 207         {
 208           repeat = oldrepeat;
 209           oldrepeat =0;
 210           rdepth--;
 211           switch (writecode)
 212             {
 213             case 'i':
 214             case 'g':
 215             case 'o':
 216             case 'c':
 217           printf("\t}}\n");
 218         }
 219         }
 220        ;
 221
 222
 223 cond_it_field: '(' COND NAME
 224         {
 225           switch (writecode)
 226             {
 227             case 'i':
 228             case 'g':
 229             case 'o':
 230             case 'c':
 231               printf("\tif (%s) {\n", $3);
 232               break;
 233             }
 234         }
 235
 236          it_field_list ')'
 237         {
 238           switch (writecode)
 239             {
 240             case 'i':
 241             case 'g':
 242             case 'o':
 243             case 'c':
 244           printf("\t}\n");
 245         }
 246         }
 247        ;
 248
 249 it_field:
 250         '(' attr_desc '(' attr_type attr_size ')' attr_id
 251         {name = $7; }
 252         enums ')'
 253         {
 254           char *desc = $2;
 255           char *type = $4;
 256           int size = $5;
 257           char *id = $7;
 258 char *p = names[rdepth];
 259 char *ptr = pnames[rdepth];
 260           switch (writecode)
 261             {
 262             case 'g':
 263               if (size % 8)
 264                 {
 265
 266                   printf("\twriteBITS(ptr->%s%s,raw,&idx,%d);\n",
 267                          id,
 268                          names[rdepth], size);
 269
 270                 }
 271               else {
 272                 printf("\twrite%s(ptr->%s%s,raw,&idx,%d,file);\n",
 273                        type,
 274                        id,
 275                        names[rdepth],size/8);
 276                 }
 277               break;
 278             case 'i':
 279               {
 280
 281                 if (rdepth >= 1)
 282
 283                   {
 284                     printf("if (!ptr->%s) ptr->%s = (%s*)xcalloc(%s, sizeof(ptr->%s[0]));\n",
 285                            id,
 286                            id,
 287                            type,
 288                            repeat,
 289                            id);
 290                   }
 291
 292                 if (rdepth == 2)
 293                   {
 294                     printf("if (!ptr->%s[n]) ptr->%s[n] = (%s**)xcalloc(%s[n], sizeof(ptr->%s[n][0]));\n",
 295                            id,
 296                            id,
 297                            type,
 298                            repeat,
 299                            id);
 300                   }
 301
 302               }
 303
 304               if (size % 8)
 305                 {
 306                   printf("\tptr->%s%s = getBITS(raw,&idx, %d,size);\n",
 307                          id,
 308                          names[rdepth],
 309                          size);
 310                 }
 311               else {
 312                 printf("\tptr->%s%s = get%s(raw,&idx, %d,size);\n",
 313                        id,
 314                        names[rdepth],
 315                        type,
 316                        size/8);
 317                 }
 318               break;
 319             case 'o':
 320               printf("\tput%s(raw,%d,%d,&idx,ptr->%s%s);\n", type,size/8,size%8,id,names[rdepth]);
 321               break;
 322             case 'd':
 323               if (repeat)
 324                 printf("\t/* repeat %s */\n", repeat);
 325
 326                   if (type[0] == 'I') {
 327                   printf("\tint %s%s; \t/* %s */\n",ptr,id, desc);
 328                 }
 329                   else if (type[0] =='C') {
 330                   printf("\tchar %s*%s;\t /* %s */\n",ptr,id, desc);
 331                 }
 332               else {
 333                 printf("\tbarray %s%s;\t /* %s */\n",ptr,id, desc);
 334               }
 335                   break;
 336                 case 'c':
 337               printf("tabout();\n");
 338                   printf("\tprintf(\"/*%-30s*/ ptr->%s = \");\n", desc, id);
 339
 340                   if (type[0] == 'I')
 341                   printf("\tprintf(\"%%d\\n\",ptr->%s%s);\n", id,p);
 342                   else   if (type[0] == 'C')
 343                   printf("\tprintf(\"%%s\\n\",ptr->%s%s);\n", id,p);
 344
 345                   else   if (type[0] == 'B')
 346                     {
 347                   printf("\tpbarray(&ptr->%s%s);\n", id,p);
 348                 }
 349               else abort();
 350                   break;
 351                 }
 352         }
 353
 354         ;
 355
 356
 357 attr_type:
 358          TYPE { $$ = $1; }
 359         |  { $$ = "INT";}
 360         ;
 361
 362 attr_desc:
 363         '(' NAME ')'
 364         { $$ = $2; }
 365         ;
 366
 367 attr_size:
 368          NUMBER UNIT
 369         { $$ = $1 * $2; }
 370         ;
 371
 372
 373 attr_id:
 374                 '(' NAME ')'    { $$ = $2; }
 375         |       { $$ = "dummy";}
 376         ;
 377
 378 enums:
 379         | '(' enum_list ')' ;
 380
 381 enum_list:
 382         |
 383         enum_list '(' NAME NAME ')' {
 384           switch (writecode)
 385             {
 386             case 'd':
 387               printf("#define %s %s\n", $3,$4);
 388               break;
 389             case 'c':
 390                 printf("if (ptr->%s%s == %s) { tabout(); printf(\"%s\\n\");}\n", name, names[rdepth],$4,$3);
 391             }
 392         }
 393
 394         ;
 395
 396
 397
 398 %%
 399 /* four modes
 400
 401    -d write structure defintions for sysroff in host format
 402    -i write functions to swap into sysroff format in
 403    -o write functions to swap into sysroff format out
 404    -c write code to print info in human form */
 405
 406 int yydebug;
 407 char writecode;
 408
 409 int
 410 main(ac,av)
 411 int ac;
 412 char **av;
 413 {
 414   yydebug=0;
 415   if (ac > 1)
 416     writecode = av[1][1];
 417 if (writecode == 'd')
 418   {
 419     printf("typedef struct { unsigned char *data; int len; } barray; \n");
 420     printf("typedef  int INT;\n");
 421     printf("typedef  char * CHARS;\n");
 422
 423   }
 424   yyparse();
 425 return 0;
 426 }
 427
 428 int
 429 yyerror(s)
 430      char *s;
 431 {
 432   fprintf(stderr, "%s\n" , s);
 433   return 0;
 434 }