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