gnu/dist/gdb6/sim/ppc/lf.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #include <stdio.h>
  23 #include <stdarg.h>
  24 #include <ctype.h>
  25
  26 #include "config.h"
  27 #include "misc.h"
  28 #include "lf.h"
  29
  30 #ifdef HAVE_STDLIB_H
  31 #include <stdlib.h>
  32 #endif
  33
  34 #ifdef HAVE_STRING_H
  35 #include <string.h>
  36 #else
  37 #ifdef HAVE_STRINGS_H
  38 #include <strings.h>
  39 #endif
  40 #endif
  41
  42 struct _lf {
  43   FILE *stream;
  44   int line_nr; /* nr complete lines written, curr line is line_nr+1 */
  45   int indent;
  46   int line_blank;
  47   const char *name;
  48   const char *program;
  49   lf_file_references references;
  50   lf_file_type type;
  51 };
  52
  53
  54 lf *
  55 lf_open(char *name,
  56         char *real_name,
  57         lf_file_references references,
  58         lf_file_type type,
  59         const char *program)
  60 {
  61   /* create a file object */
  62   lf *new_lf = ZALLOC(lf);
  63   ASSERT(new_lf != NULL);
  64   new_lf->references = references;
  65   new_lf->type = type;
  66   new_lf->name = (real_name == NULL ? name : real_name);
  67   new_lf->program = program;
  68   /* attach to stdout if pipe */
  69   if (!strcmp(name, "-")) {
  70     new_lf->stream = stdout;
  71   }
  72   else {
  73     /* create a new file */
  74     new_lf->stream = fopen(name, "w");
  75     if (new_lf->stream == NULL) {
  76       perror(name);
  77       exit(1);
  78     }
  79   }
  80   return new_lf;
  81 }
  82
  83
  84 void
  85 lf_close(lf *file)
  86 {
  87   if (file->stream != stdout) {
  88     if (fclose(file->stream)) {
  89       perror("lf_close.fclose");
  90       exit(1);
  91     }
  92     free(file);
  93   }
  94 }
  95
  96
  97 int
  98 lf_putchr(lf *file,
  99           const char chr)
 100 {
 101   int nr = 0;
 102   if (chr == '\n') {
 103     file->line_nr += 1;
 104     file->line_blank = 1;
 105   }
 106   else if (file->line_blank) {
 107     int pad;
 108     for (pad = file->indent; pad > 0; pad--)
 109       putc(' ', file->stream);
 110     nr += file->indent;
 111     file->line_blank = 0;
 112   }
 113   putc(chr, file->stream);
 114   nr += 1;
 115   return nr;
 116 }
 117
 118 void
 119 lf_indent_suppress(lf *file)
 120 {
 121   file->line_blank = 0;
 122 }
 123
 124
 125 int
 126 lf_putstr(lf *file,
 127           const char *string)
 128 {
 129   int nr = 0;
 130   const char *chp;
 131   if (string != NULL) {
 132     for (chp = string; *chp != '\0'; chp++) {
 133       nr += lf_putchr(file, *chp);
 134     }
 135   }
 136   return nr;
 137 }
 138
 139 static int
 140 do_lf_putunsigned(lf *file,
 141               unsigned u)
 142 {
 143   int nr = 0;
 144   if (u > 0) {
 145     nr += do_lf_putunsigned(file, u / 10);
 146     nr += lf_putchr(file, (u % 10) + '0');
 147   }
 148   return nr;
 149 }
 150
 151
 152 int
 153 lf_putint(lf *file,
 154           int decimal)
 155 {
 156   int nr = 0;
 157   if (decimal == 0)
 158     nr += lf_putchr(file, '0');
 159   else if (decimal < 0) {
 160     nr += lf_putchr(file, '-');
 161     nr += do_lf_putunsigned(file, -decimal);
 162   }
 163   else if (decimal > 0) {
 164     nr += do_lf_putunsigned(file, decimal);
 165   }
 166   else
 167     ASSERT(0);
 168   return nr;
 169 }
 170
 171
 172 int
 173 lf_printf(lf *file,
 174           const char *fmt,
 175           ...)
 176 {
 177   int nr = 0;
 178   char buf[1024];
 179   va_list ap;
 180
 181   va_start(ap, fmt);
 182   vsprintf(buf, fmt, ap);
 183   /* FIXME - this is really stuffed but so is vsprintf() on a sun! */
 184   ASSERT(strlen(buf) > 0 && strlen(buf) < sizeof(buf));
 185   nr += lf_putstr(file, buf);
 186   va_end(ap);
 187   return nr;
 188 }
 189
 190
 191 int
 192 lf_print__c_code(lf *file,
 193                  const char *code)
 194 {
 195   int nr = 0;
 196   const char *chp = code;
 197   int in_bit_field = 0;
 198   while (*chp != '\0') {
 199     if (*chp == '\t')
 200       chp++;
 201     if (*chp == '#')
 202       lf_indent_suppress(file);
 203     while (*chp != '\0' && *chp != '\n') {
 204       if (chp[0] == '{' && !isspace(chp[1])) {
 205         in_bit_field = 1;
 206         nr += lf_putchr(file, '_');
 207       }
 208       else if (in_bit_field && chp[0] == ':') {
 209         nr += lf_putchr(file, '_');
 210       }
 211       else if (in_bit_field && *chp == '}') {
 212         nr += lf_putchr(file, '_');
 213         in_bit_field = 0;
 214       }
 215       else {
 216         nr += lf_putchr(file, *chp);
 217       }
 218       chp++;
 219     }
 220     if (in_bit_field)
 221       error("bit field paren miss match some where\n");
 222     if (*chp == '\n') {
 223       nr += lf_putchr(file, '\n');
 224       chp++;
 225     }
 226   }
 227   nr += lf_putchr(file, '\n');
 228   return nr;
 229 }
 230
 231
 232 int
 233 lf_print__external_reference(lf *file,
 234                              int line_nr,
 235                              const char *file_name)
 236 {
 237   int nr = 0;
 238   switch (file->references) {
 239   case lf_include_references:
 240     lf_indent_suppress(file);
 241     nr += lf_putstr(file, "#line ");
 242     nr += lf_putint(file, line_nr);
 243     nr += lf_putstr(file, " \"");
 244     nr += lf_putstr(file, file_name);
 245     nr += lf_putstr(file, "\"\n");
 246     break;
 247   case lf_omit_references:
 248     break;
 249   }
 250   return nr;
 251 }
 252
 253 int
 254 lf_print__internal_reference(lf *file)
 255 {
 256   int nr = 0;
 257   nr += lf_print__external_reference(file, file->line_nr+2, file->name);
 258   /* line_nr == last_line, want to number from next */
 259   return nr;
 260 }
 261
 262 void
 263 lf_indent(lf *file, int delta)
 264 {
 265   file->indent += delta;
 266 }
 267
 268
 269 int
 270 lf_print__gnu_copyleft(lf *file)
 271 {
 272   int nr = 0;
 273   switch (file->type) {
 274   case lf_is_c:
 275   case lf_is_h:
 276     nr += lf_printf(file, "\n\
 277 /*  This file is part of the program psim.\n\
 278 \n\
 279     Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>\n\
 280 \n\
 281     This program is free software; you can redistribute it and/or modify\n\
 282     it under the terms of the GNU General Public License as published by\n\
 283     the Free Software Foundation; either version 2 of the License, or\n\
 284     (at your option) any later version.\n\
 285 \n\
 286     This program is distributed in the hope that it will be useful,\n\
 287     but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
 288     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\
 289     GNU General Public License for more details.\n\
 290  \n\
 291     You should have received a copy of the GNU General Public License\n\
 292     along with this program; if not, write to the Free Software\n\
 293     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n\
 294  \n\
 295     --\n\
 296 \n\
 297     This file was generated by the program %s */\n\
 298 ", filter_filename(file->program));
 299     break;
 300   default:
 301     ASSERT(0);
 302     break;
 303   }
 304   return nr;
 305 }
 306
 307
 308 int
 309 lf_putbin(lf *file, int decimal, int width)
 310 {
 311   int nr = 0;
 312   int bit;
 313   ASSERT(width > 0);
 314   for (bit = 1 << (width-1); bit != 0; bit >>= 1) {
 315     if (decimal & bit)
 316       nr += lf_putchr(file, '1');
 317     else
 318       nr += lf_putchr(file, '0');
 319   }
 320   return nr;
 321 }
 322
 323 int
 324 lf_print__this_file_is_empty(lf *file)
 325 {
 326   int nr = 0;
 327   switch (file->type) {
 328   case lf_is_c:
 329   case lf_is_h:
 330     nr += lf_printf(file,
 331                     "/* This generated file (%s) is intentionally left blank */\n",
 332                     file->name);
 333     break;
 334   default:
 335     ASSERT(0);
 336   }
 337   return nr;
 338 }
 339
 340 int
 341 lf_print__ucase_filename(lf *file)
 342 {
 343   int nr = 0;
 344   const char *chp = file->name;
 345   while (*chp != '\0') {
 346     char ch = *chp;
 347     if (islower(ch)) {
 348       nr += lf_putchr(file, toupper(ch));
 349     }
 350     else if (ch == '.')
 351       nr += lf_putchr(file, '_');
 352     else
 353       nr += lf_putchr(file, ch);
 354     chp++;
 355   }
 356   return nr;
 357 }
 358
 359 int
 360 lf_print__file_start(lf *file)
 361 {
 362   int nr = 0;
 363   switch (file->type) {
 364   case lf_is_h:
 365   case lf_is_c:
 366     nr += lf_print__gnu_copyleft(file);
 367     nr += lf_printf(file, "\n");
 368     nr += lf_printf(file, "#ifndef _");
 369     nr += lf_print__ucase_filename(file);
 370     nr += lf_printf(file, "_\n");
 371     nr += lf_printf(file, "#define _");
 372     nr += lf_print__ucase_filename(file);
 373     nr += lf_printf(file, "_\n");
 374     nr += lf_printf(file, "\n");
 375     break;
 376   default:
 377     ASSERT(0);
 378   }
 379   return nr;
 380 }
 381
 382
 383 int
 384 lf_print__file_finish(lf *file)
 385 {
 386   int nr = 0;
 387   switch (file->type) {
 388   case lf_is_h:
 389   case lf_is_c:
 390     nr += lf_printf(file, "\n");
 391     nr += lf_printf(file, "#endif /* _");
 392     nr += lf_print__ucase_filename(file);
 393     nr += lf_printf(file, "_*/\n");
 394     break;
 395   default:
 396     ASSERT(0);
 397   }
 398   return nr;
 399 }
 400
 401
 402 int
 403 lf_print_function_type(lf *file,
 404                        const char *type,
 405                        const char *prefix,
 406                        const char *trailing_space)
 407 {
 408   int nr = 0;
 409   nr += lf_printf(file, "%s\\\n(%s)", prefix, type);
 410   if (trailing_space != NULL)
 411     nr += lf_printf(file, "%s", trailing_space);
 412 #if 0
 413   const char *type_pointer = strrchr(type, '*');
 414   int type_pointer_offset = (type_pointer != NULL
 415                              ? type_pointer - type
 416                              : 0);
 417   if (type_pointer == NULL) {
 418     lf_printf(file, "%s %s", type, prefix);
 419   }
 420   else {
 421     char *munged_type = (char*)zalloc(strlen(type)
 422                                       + strlen(prefix)
 423                                       + strlen(" * ")
 424                                       + 1);
 425     strcpy(munged_type, type);
 426     munged_type[type_pointer_offset] = '\0';
 427     if (type_pointer_offset > 0 && type[type_pointer_offset-1] != ' ')
 428       strcat(munged_type, " ");
 429     strcat(munged_type, prefix);
 430     strcat(munged_type, " ");
 431     strcat(munged_type, type + type_pointer_offset);
 432     lf_printf(file, "%s", munged_type);
 433     free(munged_type);
 434   }
 435   if (trailing_space != NULL && type_pointer_offset < strlen(type) - 1)
 436     lf_printf(file, trailing_space);
 437 #endif
 438   return nr;
 439 }
 440