binutils/sysinfo.y

   1 /* Copyright (C) 2001-2017 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 %{
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 static char writecode;
  27 static char *it;
  28 static int code;
  29 static char * repeat;
  30 static char *oldrepeat;
  31 static char *name;
  32 static int rdepth;
  33 static char *names[] = {" ","[n]","[n][m]"};
  34 static char *pnames[]= {"","*","**"};
  35
  36 static int yyerror (char *s);
  37 extern int yylex (void);
  38 %}
  39
  40
  41 %union {
  42  int i;
  43  char *s;
  44 }
  45 %token COND
  46 %token REPEAT
  47 %token '(' ')'
  48 %token <s> TYPE
  49 %token <s> NAME
  50 %token <i> NUMBER UNIT
  51 %type <i> attr_size
  52 %type <s> attr_desc attr_id attr_type
  53 %%
  54
  55 top:  {
  56   switch (writecode)
  57     {
  58     case 'i':
  59       printf("#ifdef SYSROFF_SWAP_IN\n");
  60       break;
  61     case 'p':
  62       printf("#ifdef SYSROFF_p\n");
  63       break;
  64     case 'd':
  65       break;
  66     case 'g':
  67       printf("#ifdef SYSROFF_SWAP_OUT\n");
  68       break;
  69     case 'c':
  70       printf("#ifdef SYSROFF_PRINT\n");
  71       printf("#include <stdio.h>\n");
  72       printf("#include <stdlib.h>\n");
  73       printf("#include <ansidecl.h>\n");
  74       break;
  75     }
  76  }
  77 it_list {
  78   switch (writecode) {
  79   case 'i':
  80   case 'p':
  81   case 'g':
  82   case 'c':
  83     printf("#endif\n");
  84     break;
  85   case 'd':
  86     break;
  87   }
  88 }
  89
  90   ;
  91
  92
  93 it_list: it it_list
  94   |
  95   ;
  96
  97 it:
  98         '(' NAME NUMBER
  99       {
 100         it = $2; code = $3;
 101         switch (writecode)
 102           {
 103           case 'd':
 104             printf("\n\n\n#define IT_%s_CODE 0x%x\n", it,code);
 105             printf("struct IT_%s;\n", it);
 106             printf("extern void sysroff_swap_%s_in (struct IT_%s *);\n",
 107                    $2, it);
 108             printf("extern void sysroff_swap_%s_out (FILE *, struct IT_%s *);\n",
 109                    $2, it);
 110             printf("extern void sysroff_print_%s_out (struct IT_%s *);\n",
 111                    $2, it);
 112             printf("struct IT_%s { \n", it);
 113             break;
 114           case 'i':
 115             printf("void sysroff_swap_%s_in (struct IT_%s * ptr)\n",$2,it);
 116             printf("{\n");
 117             printf("\tunsigned char raw[255];\n");
 118             printf("\tint idx = 0;\n");
 119             printf("\tint size;\n");
 120             printf("\tmemset(raw,0,255);\n");
 121             printf("\tmemset(ptr,0,sizeof(*ptr));\n");
 122             printf("\tsize = fillup(raw);\n");
 123             break;
 124           case 'g':
 125             printf("void sysroff_swap_%s_out (FILE * ffile, struct IT_%s * ptr)\n",$2,it);
 126             printf("{\n");
 127             printf("\tunsigned char raw[255];\n");
 128             printf("\tint idx = 16;\n");
 129             printf("\tmemset (raw, 0, 255);\n");
 130             printf("\tcode = IT_%s_CODE;\n", it);
 131             break;
 132           case 'o':
 133             printf("void sysroff_swap_%s_out (bfd * abfd, struct IT_%s * ptr)\n",$2, it);
 134             printf("{\n");
 135             printf("\tint idx = 0;\n");
 136             break;
 137           case 'c':
 138             printf("void sysroff_print_%s_out (struct IT_%s *ptr)\n",$2,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(ffile,raw, idx, IT_%s_CODE);\n", it);
 157     /* Fall through.  */
 158   case 'i':
 159   case 'o':
 160   case 'c':
 161     printf("}\n");
 162   }
 163
 164   free (it);
 165 }
 166 ;
 167
 168
 169
 170 it_field_list:
 171                 it_field it_field_list
 172         |       cond_it_field it_field_list
 173         |       repeat_it_field it_field_list
 174         |
 175         ;
 176
 177 repeat_it_field: '(' REPEAT NAME
 178         {
 179           rdepth++;
 180           switch (writecode)
 181             {
 182             case 'c':
 183               if (rdepth==1)
 184               printf("\tprintf(\"repeat %%d\\n\", %s);\n",$3);
 185               if (rdepth==2)
 186               printf("\tprintf(\"repeat %%d\\n\", %s[n]);\n",$3);
 187               /* Fall through.  */
 188             case 'i':
 189             case 'g':
 190             case 'o':
 191
 192               if (rdepth==1)
 193                 {
 194               printf("\t{ int n; for (n = 0; n < %s; n++) {\n",    $3);
 195             }
 196               if (rdepth == 2) {
 197               printf("\t{ int m; for (m = 0; m < %s[n]; m++) {\n",    $3);
 198             }
 199
 200               break;
 201             }
 202
 203           oldrepeat = repeat;
 204          repeat = $3;
 205         }
 206
 207          it_field_list ')'
 208
 209         {
 210           free (repeat);
 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           free ($3);
 240         }
 241
 242          it_field_list ')'
 243         {
 244           switch (writecode)
 245             {
 246             case 'i':
 247             case 'g':
 248             case 'o':
 249             case 'c':
 250           printf("\t}\n");
 251         }
 252         }
 253        ;
 254
 255 it_field:
 256         '(' attr_desc '(' attr_type attr_size ')' attr_id
 257         {name = $7; }
 258         enums ')'
 259         {
 260           char *desc = $2;
 261           char *type = $4;
 262           int size = $5;
 263           char *id = $7;
 264 char *p = names[rdepth];
 265 char *ptr = pnames[rdepth];
 266           switch (writecode)
 267             {
 268             case 'g':
 269               if (size % 8)
 270                 {
 271
 272                   printf("\twriteBITS(ptr->%s%s,raw,&idx,%d);\n",
 273                          id,
 274                          names[rdepth], size);
 275
 276                 }
 277               else {
 278                 printf("\twrite%s(ptr->%s%s,raw,&idx,%d,ffile);\n",
 279                        type,
 280                        id,
 281                        names[rdepth],size/8);
 282                 }
 283               break;
 284             case 'i':
 285               {
 286
 287                 if (rdepth >= 1)
 288
 289                   {
 290                     printf("if (!ptr->%s) ptr->%s = (%s*)xcalloc(%s, sizeof(ptr->%s[0]));\n",
 291                            id,
 292                            id,
 293                            type,
 294                            repeat,
 295                            id);
 296                   }
 297
 298                 if (rdepth == 2)
 299                   {
 300                     printf("if (!ptr->%s[n]) ptr->%s[n] = (%s**)xcalloc(%s[n], sizeof(ptr->%s[n][0]));\n",
 301                            id,
 302                            id,
 303                            type,
 304                            repeat,
 305                            id);
 306                   }
 307
 308               }
 309
 310               if (size % 8)
 311                 {
 312                   printf("\tptr->%s%s = getBITS(raw,&idx, %d,size);\n",
 313                          id,
 314                          names[rdepth],
 315                          size);
 316                 }
 317               else {
 318                 printf("\tptr->%s%s = get%s(raw,&idx, %d,size);\n",
 319                        id,
 320                        names[rdepth],
 321                        type,
 322                        size/8);
 323                 }
 324               break;
 325             case 'o':
 326               printf("\tput%s(raw,%d,%d,&idx,ptr->%s%s);\n", type,size/8,size%8,id,names[rdepth]);
 327               break;
 328             case 'd':
 329               if (repeat)
 330                 printf("\t/* repeat %s */\n", repeat);
 331
 332                   if (type[0] == 'I') {
 333                   printf("\tint %s%s; \t/* %s */\n",ptr,id, desc);
 334                 }
 335                   else if (type[0] =='C') {
 336                   printf("\tchar %s*%s;\t /* %s */\n",ptr,id, desc);
 337                 }
 338               else {
 339                 printf("\tbarray %s%s;\t /* %s */\n",ptr,id, desc);
 340               }
 341                   break;
 342                 case 'c':
 343               printf("tabout();\n");
 344                   printf("\tprintf(\"/*%-30s*/ ptr->%s = \");\n", desc, id);
 345
 346                   if (type[0] == 'I')
 347                   printf("\tprintf(\"%%d\\n\",ptr->%s%s);\n", id,p);
 348                   else   if (type[0] == 'C')
 349                   printf("\tprintf(\"%%s\\n\",ptr->%s%s);\n", id,p);
 350
 351                   else   if (type[0] == 'B')
 352                     {
 353                   printf("\tpbarray(&ptr->%s%s);\n", id,p);
 354                 }
 355               else abort();
 356                   break;
 357                 }
 358
 359           free (desc);
 360           free (id);
 361         }
 362
 363         ;
 364
 365
 366 attr_type:
 367          TYPE { $$ = $1; }
 368         |  { $$ = "INT";}
 369         ;
 370
 371 attr_desc:
 372         '(' NAME ')'
 373         { $$ = $2; }
 374         ;
 375
 376 attr_size:
 377          NUMBER UNIT
 378         { $$ = $1 * $2; }
 379         ;
 380
 381
 382 attr_id:
 383                 '(' NAME ')'    { $$ = $2; }
 384         |       { $$ = strdup ("dummy");}
 385         ;
 386
 387 enums:
 388         | '(' enum_list ')' ;
 389
 390 enum_list:
 391         |
 392         enum_list '(' NAME NAME ')' {
 393           switch (writecode)
 394             {
 395             case 'd':
 396               printf("#define %s %s\n", $3,$4);
 397               break;
 398             case 'c':
 399                 printf("if (ptr->%s%s == %s) { tabout(); printf(\"%s\\n\");}\n", name, names[rdepth],$4,$3);
 400             }
 401
 402           free ($3);
 403           free ($4);
 404         }
 405
 406         ;
 407
 408
 409
 410 %%
 411 /* four modes
 412
 413    -d write structure definitions for sysroff in host format
 414    -i write functions to swap into sysroff format in
 415    -o write functions to swap into sysroff format out
 416    -c write code to print info in human form */
 417
 418 int yydebug;
 419
 420 int
 421 main (int ac, char **av)
 422 {
 423   yydebug=0;
 424   if (ac > 1)
 425     writecode = av[1][1];
 426 if (writecode == 'd')
 427   {
 428     printf("typedef struct { unsigned char *data; int len; } barray; \n");
 429     printf("typedef  int INT;\n");
 430     printf("typedef  char * CHARS;\n");
 431
 432   }
 433   yyparse();
 434 return 0;
 435 }
 436
 437 static int
 438 yyerror (char *s)
 439 {
 440   fprintf(stderr, "%s\n" , s);
 441   return 0;
 442 }