binutils/sysinfo.y

   1 /* Copyright 2001, 2003, 2005 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 static char writecode;
  25 static char *it;
  26 static int code;
  27 static char * repeat;
  28 static char *oldrepeat;
  29 static char *name;
  30 static int rdepth;
  31 static char *names[] = {" ","[n]","[n][m]"};
  32 static char *pnames[]= {"","*","**"};
  33
  34 static int yyerror (char *s);
  35 extern int yylex (void);
  36 %}
  37
  38
  39 %union {
  40  int i;
  41  char *s;
  42 }
  43 %token COND
  44 %token REPEAT
  45 %token '(' ')'
  46 %token <s> TYPE
  47 %token <s> NAME
  48 %token <i> NUMBER UNIT
  49 %type <i> attr_size
  50 %type <s> attr_desc attr_id attr_type
  51 %%
  52
  53 top:  {
  54   switch (writecode)
  55     {
  56     case 'i':
  57       printf("#ifdef SYSROFF_SWAP_IN\n");
  58       break;
  59     case 'p':
  60       printf("#ifdef SYSROFF_p\n");
  61       break;
  62     case 'd':
  63       break;
  64     case 'g':
  65       printf("#ifdef SYSROFF_SWAP_OUT\n");
  66       break;
  67     case 'c':
  68       printf("#ifdef SYSROFF_PRINT\n");
  69       printf("#include <stdio.h>\n");
  70       printf("#include <stdlib.h>\n");
  71       printf("#include <ansidecl.h>\n");
  72       break;
  73     }
  74  }
  75 it_list {
  76   switch (writecode) {
  77   case 'i':
  78   case 'p':
  79   case 'g':
  80   case 'c':
  81     printf("#endif\n");
  82     break;
  83   case 'd':
  84     break;
  85   }
  86 }
  87
  88   ;
  89
  90
  91 it_list: it it_list
  92   |
  93   ;
  94
  95 it:
  96         '(' NAME NUMBER
  97       {
  98         it = $2; code = $3;
  99         switch (writecode)
 100           {
 101           case 'd':
 102             printf("\n\n\n#define IT_%s_CODE 0x%x\n", it,code);
 103             printf("struct IT_%s;\n", it);
 104             printf("extern void sysroff_swap_%s_in PARAMS ((struct IT_%s *));\n",
 105                    $2, it);
 106             printf("extern void sysroff_swap_%s_out PARAMS ((FILE *, struct IT_%s *));\n",
 107                    $2, it);
 108             printf("extern void sysroff_print_%s_out PARAMS ((struct IT_%s *));\n",
 109                    $2, it);
 110             printf("struct IT_%s { \n", it);
 111             break;
 112           case 'i':
 113             printf("void sysroff_swap_%s_in(ptr)\n",$2);
 114             printf("struct IT_%s *ptr;\n", it);
 115             printf("{\n");
 116             printf("unsigned char raw[255];\n");
 117             printf("\tint idx = 0 ;\n");
 118             printf("\tint size;\n");
 119             printf("memset(raw,0,255);\n");
 120             printf("memset(ptr,0,sizeof(*ptr));\n");
 121             printf("size = fillup(raw);\n");
 122             break;
 123           case 'g':
 124             printf("void sysroff_swap_%s_out(file,ptr)\n",$2);
 125             printf("FILE * file;\n");
 126             printf("struct IT_%s *ptr;\n", it);
 127             printf("{\n");
 128             printf("\tunsigned char raw[255];\n");
 129             printf("\tint idx = 16 ;\n");
 130             printf("\tmemset (raw, 0, 255);\n");
 131             printf("\tcode = IT_%s_CODE;\n", it);
 132             break;
 133           case 'o':
 134             printf("void sysroff_swap_%s_out(abfd,ptr)\n",$2);
 135             printf("bfd * abfd;\n");
 136             printf("struct IT_%s *ptr;\n",it);
 137             printf("{\n");
 138             printf("int idx = 0 ;\n");
 139             break;
 140           case 'c':
 141             printf("void sysroff_print_%s_out(ptr)\n",$2);
 142             printf("struct IT_%s *ptr;\n", it);
 143             printf("{\n");
 144             printf("itheader(\"%s\", IT_%s_CODE);\n",$2,$2);
 145             break;
 146
 147           case 't':
 148             break;
 149           }
 150
 151       }
 152         it_field_list
 153 ')'
 154 {
 155   switch (writecode) {
 156   case 'd':
 157     printf("};\n");
 158     break;
 159   case 'g':
 160     printf("\tchecksum(file,raw, idx, IT_%s_CODE);\n", it);
 161
 162   case 'i':
 163
 164   case 'o':
 165   case 'c':
 166     printf("}\n");
 167   }
 168 }
 169 ;
 170
 171
 172
 173 it_field_list:
 174                 it_field it_field_list
 175         |       cond_it_field it_field_list
 176         |       repeat_it_field it_field_list
 177         |
 178         ;
 179
 180 repeat_it_field: '(' REPEAT NAME
 181         {
 182           rdepth++;
 183           switch (writecode)
 184             {
 185             case 'c':
 186               if (rdepth==1)
 187               printf("\tprintf(\"repeat %%d\\n\", %s);\n",$3);
 188               if (rdepth==2)
 189               printf("\tprintf(\"repeat %%d\\n\", %s[n]);\n",$3);
 190             case 'i':
 191             case 'g':
 192             case 'o':
 193
 194               if (rdepth==1)
 195                 {
 196               printf("\t{ int n; for (n = 0; n < %s; n++) {\n",    $3);
 197             }
 198               if (rdepth == 2) {
 199               printf("\t{ int m; for (m = 0; m < %s[n]; m++) {\n",    $3);
 200             }
 201
 202               break;
 203             }
 204
 205           oldrepeat = repeat;
 206          repeat = $3;
 207         }
 208
 209          it_field_list ')'
 210
 211         {
 212           repeat = oldrepeat;
 213           oldrepeat =0;
 214           rdepth--;
 215           switch (writecode)
 216             {
 217             case 'i':
 218             case 'g':
 219             case 'o':
 220             case 'c':
 221           printf("\t}}\n");
 222         }
 223         }
 224        ;
 225
 226
 227 cond_it_field: '(' COND NAME
 228         {
 229           switch (writecode)
 230             {
 231             case 'i':
 232             case 'g':
 233             case 'o':
 234             case 'c':
 235               printf("\tif (%s) {\n", $3);
 236               break;
 237             }
 238         }
 239
 240          it_field_list ')'
 241         {
 242           switch (writecode)
 243             {
 244             case 'i':
 245             case 'g':
 246             case 'o':
 247             case 'c':
 248           printf("\t}\n");
 249         }
 250         }
 251        ;
 252
 253 it_field:
 254         '(' attr_desc '(' attr_type attr_size ')' attr_id
 255         {name = $7; }
 256         enums ')'
 257         {
 258           char *desc = $2;
 259           char *type = $4;
 260           int size = $5;
 261           char *id = $7;
 262 char *p = names[rdepth];
 263 char *ptr = pnames[rdepth];
 264           switch (writecode)
 265             {
 266             case 'g':
 267               if (size % 8)
 268                 {
 269
 270                   printf("\twriteBITS(ptr->%s%s,raw,&idx,%d);\n",
 271                          id,
 272                          names[rdepth], size);
 273
 274                 }
 275               else {
 276                 printf("\twrite%s(ptr->%s%s,raw,&idx,%d,file);\n",
 277                        type,
 278                        id,
 279                        names[rdepth],size/8);
 280                 }
 281               break;
 282             case 'i':
 283               {
 284
 285                 if (rdepth >= 1)
 286
 287                   {
 288                     printf("if (!ptr->%s) ptr->%s = (%s*)xcalloc(%s, sizeof(ptr->%s[0]));\n",
 289                            id,
 290                            id,
 291                            type,
 292                            repeat,
 293                            id);
 294                   }
 295
 296                 if (rdepth == 2)
 297                   {
 298                     printf("if (!ptr->%s[n]) ptr->%s[n] = (%s**)xcalloc(%s[n], sizeof(ptr->%s[n][0]));\n",
 299                            id,
 300                            id,
 301                            type,
 302                            repeat,
 303                            id);
 304                   }
 305
 306               }
 307
 308               if (size % 8)
 309                 {
 310                   printf("\tptr->%s%s = getBITS(raw,&idx, %d,size);\n",
 311                          id,
 312                          names[rdepth],
 313                          size);
 314                 }
 315               else {
 316                 printf("\tptr->%s%s = get%s(raw,&idx, %d,size);\n",
 317                        id,
 318                        names[rdepth],
 319                        type,
 320                        size/8);
 321                 }
 322               break;
 323             case 'o':
 324               printf("\tput%s(raw,%d,%d,&idx,ptr->%s%s);\n", type,size/8,size%8,id,names[rdepth]);
 325               break;
 326             case 'd':
 327               if (repeat)
 328                 printf("\t/* repeat %s */\n", repeat);
 329
 330                   if (type[0] == 'I') {
 331                   printf("\tint %s%s; \t/* %s */\n",ptr,id, desc);
 332                 }
 333                   else if (type[0] =='C') {
 334                   printf("\tchar %s*%s;\t /* %s */\n",ptr,id, desc);
 335                 }
 336               else {
 337                 printf("\tbarray %s%s;\t /* %s */\n",ptr,id, desc);
 338               }
 339                   break;
 340                 case 'c':
 341               printf("tabout();\n");
 342                   printf("\tprintf(\"/*%-30s*/ ptr->%s = \");\n", desc, id);
 343
 344                   if (type[0] == 'I')
 345                   printf("\tprintf(\"%%d\\n\",ptr->%s%s);\n", id,p);
 346                   else   if (type[0] == 'C')
 347                   printf("\tprintf(\"%%s\\n\",ptr->%s%s);\n", id,p);
 348
 349                   else   if (type[0] == 'B')
 350                     {
 351                   printf("\tpbarray(&ptr->%s%s);\n", id,p);
 352                 }
 353               else abort();
 354                   break;
 355                 }
 356         }
 357
 358         ;
 359
 360
 361 attr_type:
 362          TYPE { $$ = $1; }
 363         |  { $$ = "INT";}
 364         ;
 365
 366 attr_desc:
 367         '(' NAME ')'
 368         { $$ = $2; }
 369         ;
 370
 371 attr_size:
 372          NUMBER UNIT
 373         { $$ = $1 * $2; }
 374         ;
 375
 376
 377 attr_id:
 378                 '(' NAME ')'    { $$ = $2; }
 379         |       { $$ = "dummy";}
 380         ;
 381
 382 enums:
 383         | '(' enum_list ')' ;
 384
 385 enum_list:
 386         |
 387         enum_list '(' NAME NAME ')' {
 388           switch (writecode)
 389             {
 390             case 'd':
 391               printf("#define %s %s\n", $3,$4);
 392               break;
 393             case 'c':
 394                 printf("if (ptr->%s%s == %s) { tabout(); printf(\"%s\\n\");}\n", name, names[rdepth],$4,$3);
 395             }
 396         }
 397
 398         ;
 399
 400
 401
 402 %%
 403 /* four modes
 404
 405    -d write structure definitions for sysroff in host format
 406    -i write functions to swap into sysroff format in
 407    -o write functions to swap into sysroff format out
 408    -c write code to print info in human form */
 409
 410 int yydebug;
 411
 412 int
 413 main (int ac, char **av)
 414 {
 415   yydebug=0;
 416   if (ac > 1)
 417     writecode = av[1][1];
 418 if (writecode == 'd')
 419   {
 420     printf("typedef struct { unsigned char *data; int len; } barray; \n");
 421     printf("typedef  int INT;\n");
 422     printf("typedef  char * CHARS;\n");
 423
 424   }
 425   yyparse();
 426 return 0;
 427 }
 428
 429 static int
 430 yyerror (char *s)
 431 {
 432   fprintf(stderr, "%s\n" , s);
 433   return 0;
 434 }