ld/ldmisc.c

   1 /* ldmisc.c
   2    Copyright (C) 1991 Free Software Foundation, Inc.
   3
   4    Written by Steve Chamberlain of Cygnus Support.
   5
   6 This file is part of GLD, the Gnu Linker.
   7
   8 GLD is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GLD is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GLD; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.h"
  24 #include <varargs.h>
  25
  26 #include "ld.h"
  27 #include "ldmisc.h"
  28 #include "ldlang.h"
  29 #include "ldlex.h"
  30 /* IMPORTS */
  31
  32 extern char *program_name;
  33
  34 extern FILE *ldlex_input_stack;
  35 extern char *ldfile_input_filename;
  36 extern ld_config_type config;
  37
  38
  39 extern int errno;
  40 extern   int  sys_nerr;
  41 extern char *sys_errlist[];
  42
  43 /*
  44  %F error is fatal
  45  %P print progam name
  46  %S print script file and linenumber
  47  %E current bfd error or errno
  48  %I filename from a lang_input_statement_type
  49  %B filename from a bfd
  50  %T symbol table entry
  51  %X no object output, fail return
  52  %V hex bfd_vma
  53  %C Clever filename:linenumber
  54  %R info about a relent
  55  %
  56 */
  57 static void
  58 vfinfo(fp, fmt, arg)
  59      FILE *fp;
  60      char *fmt;
  61      va_list arg;
  62 {
  63   extern char *cplus_demangle();
  64   boolean fatal = false;
  65   while (*fmt)
  66   {
  67     while (*fmt != '%' && *fmt != '\0')
  68     {
  69       putc(*fmt, fp);
  70       fmt++;
  71     }
  72     if (*fmt == '%')
  73     {
  74       fmt ++;
  75       switch (*fmt++)
  76       {
  77        case 'X':
  78         config.make_executable = false;
  79         break;
  80        case 'V':
  81        {
  82          bfd_vma value = va_arg(arg, bfd_vma);
  83          fprintf_vma(fp, value);
  84        }
  85         break;
  86        case 'T':
  87        {
  88          asymbol *symbol = va_arg(arg, asymbol *);
  89          if (symbol)
  90          {
  91
  92
  93            asection *section = symbol->section;
  94            char *cplusname = cplus_demangle(symbol->name, 1);
  95            CONST char *section_name =  section->name;
  96            if (section != &bfd_und_section)
  97            {
  98              fprintf(fp,"%s (%s)", cplusname ? cplusname :
  99                      symbol->name, section_name);
 100            }
 101            else
 102            {
 103              fprintf(fp,"%s", cplusname ? cplusname : symbol->name);
 104            }
 105
 106            if (cplusname)
 107            {
 108              free(cplusname);
 109            }
 110
 111          }
 112          else
 113          {
 114            fprintf(fp,"no symbol");
 115          }
 116        }
 117         break;
 118        case 'B':
 119        {
 120          bfd *abfd = va_arg(arg, bfd *);
 121          if (abfd->my_archive) {
 122            fprintf(fp,"%s(%s)", abfd->my_archive->filename,
 123                    abfd->filename);
 124          }
 125          else {
 126            fprintf(fp,"%s", abfd->filename);
 127
 128          }
 129        }
 130         break;
 131        case 'F':
 132         fatal = true;
 133         break;
 134        case 'P':
 135         fprintf(fp,"%s", program_name);
 136         break;
 137        case 'E':
 138         /* Replace with the most recent errno explanation */
 139
 140
 141         fprintf(fp, bfd_errmsg(bfd_error));
 142
 143
 144         break;
 145        case 'I':
 146        {
 147          lang_input_statement_type *i =
 148           va_arg(arg,lang_input_statement_type *);
 149
 150          fprintf(fp,"%s", i->local_sym_name);
 151        }
 152         break;
 153        case 'S':
 154         /* Print source script file and line number */
 155
 156        {
 157
 158
 159          extern unsigned int lineno;
 160          if (ldfile_input_filename == (char *)NULL) {
 161            fprintf(fp,"command line");
 162          }
 163          else {
 164            fprintf(fp,"%s:%u", ldfile_input_filename, lineno );
 165          }
 166        }
 167
 168         break;
 169
 170        case 'R':
 171         /* Print all that's interesting about a relent */
 172        {
 173          arelent *relent = va_arg(arg, arelent *);
 174
 175          fprintf(fp,"%s+0x%x (type %s)",
 176                  (*(relent->sym_ptr_ptr))->name,
 177                  relent->addend,
 178                  relent->howto->name);
 179
 180
 181        }
 182         break;
 183
 184
 185
 186
 187        case 'C':
 188        {
 189          CONST char *filename;
 190          CONST char *functionname;
 191          char *cplus_name;
 192
 193          unsigned int linenumber;
 194          bfd *abfd = va_arg(arg, bfd *);
 195          asection *section = va_arg(arg, asection *);
 196          asymbol **symbols = va_arg(arg, asymbol **);
 197          bfd_vma offset = va_arg(arg, bfd_vma);
 198
 199          if (bfd_find_nearest_line(abfd,
 200                                    section,
 201                                    symbols,
 202                                    offset,
 203                                    &filename,
 204                                    &functionname,
 205                                    &linenumber))
 206          {
 207            if (filename == (char *)NULL)
 208             filename = abfd->filename;
 209            if (functionname != (char *)NULL)
 210            {
 211              cplus_name = cplus_demangle(functionname, 1);
 212              fprintf(fp,"%s:%u: (%s)", filename, linenumber,
 213                      cplus_name? cplus_name: functionname);
 214              if (cplus_name)
 215               free(cplus_name);
 216
 217
 218            }
 219
 220            else if (linenumber != 0)
 221             fprintf(fp,"%s:%u", filename, linenumber);
 222            else
 223             fprintf(fp,"%s(%s+%0x)", filename,
 224                     section->name,
 225                     offset);
 226
 227          }
 228          else {
 229            fprintf(fp,"%s(%s+%0x)", abfd->filename,
 230                    section->name,
 231                    offset);
 232          }
 233        }
 234         break;
 235
 236        case 's':
 237         fprintf(fp,"%s", va_arg(arg, char *));
 238         break;
 239        case 'd':
 240         fprintf(fp,"%d", va_arg(arg, int));
 241         break;
 242        default:
 243         fprintf(fp,"%s", va_arg(arg, char *));
 244         break;
 245       }
 246     }
 247   }
 248   if (fatal == true)
 249   {
 250     extern char *output_filename;
 251     if (output_filename)
 252     {
 253       char *new = malloc(strlen(output_filename)+2);
 254       extern bfd *output_bfd;
 255
 256       strcpy(new, output_filename);
 257       if (output_bfd && output_bfd->iostream)
 258        fclose((FILE *)(output_bfd->iostream));
 259       unlink(new);
 260     }
 261     exit(1);
 262   }
 263 }
 264
 265 /* Format info message and print on stdout. */
 266
 267 void info(va_alist)
 268 va_dcl
 269 {
 270   char *fmt;
 271   va_list arg;
 272   va_start(arg);
 273   fmt = va_arg(arg, char *);
 274   vfinfo(stdout, fmt, arg);
 275   va_end(arg);
 276 }
 277
 278 /* ('e' for error.) Format info message and print on stderr. */
 279
 280 void einfo(va_alist)
 281 va_dcl
 282 {
 283   char *fmt;
 284   va_list arg;
 285   va_start(arg);
 286   fmt = va_arg(arg, char *);
 287   vfinfo(stderr, fmt, arg);
 288   va_end(arg);
 289 }
 290
 291 void
 292 info_assert(file, line)
 293 char *file;
 294 unsigned int line;
 295 {
 296   einfo("%F%P internal error %s %d\n", file,line);
 297 }
 298
 299 /* Return a newly-allocated string
 300    whose contents concatenate those of S1, S2, S3.  */
 301
 302 char *
 303 DEFUN(concat, (s1, s2, s3),
 304       CONST char *s1 AND
 305       CONST char *s2 AND
 306       CONST char *s3)
 307 {
 308   bfd_size_type len1 = strlen (s1);
 309   bfd_size_type len2 = strlen (s2);
 310   bfd_size_type len3 = strlen (s3);
 311   char *result = ldmalloc (len1 + len2 + len3 + 1);
 312
 313   if (len1 != 0)
 314     memcpy(result, s1, len1);
 315   if (len2 != 0)
 316     memcpy(result+len1, s2, len2);
 317   if (len3 != 0)
 318     memcpy(result+len1+len2, s2, len3);
 319   *(result + len1 + len2 + len3) = 0;
 320
 321   return result;
 322 }
 323
 324
 325 PTR
 326 DEFUN(ldmalloc, (size),
 327 bfd_size_type size)
 328 {
 329   PTR result =  malloc ((int)size);
 330
 331   if (result == (char *)NULL && size != 0)
 332     einfo("%F%P virtual memory exhausted\n");
 333
 334   return result;
 335 }
 336
 337 PTR
 338 DEFUN(xmalloc,(size),
 339 int size)
 340 {
 341 return ldmalloc(size);
 342 }
 343
 344
 345 PTR
 346 DEFUN(ldrealloc, (ptr, size),
 347 PTR ptr AND
 348 bfd_size_type size)
 349 {
 350   PTR result =  realloc (ptr, (int)size);
 351
 352   if (result == (char *)NULL && size != 0)
 353     einfo("%F%P virtual memory exhausted\n");
 354
 355   return result;
 356 }
 357
 358
 359
 360 char *DEFUN(buystring,(x),
 361             CONST char *CONST x)
 362 {
 363   bfd_size_type  l = strlen(x)+1;
 364   char *r = ldmalloc(l);
 365   memcpy(r, x,l);
 366   return r;
 367 }
 368
 369
 370 /* ('m' for map) Format info message and print on map. */
 371
 372 void minfo(va_alist)
 373 va_dcl
 374 {
 375   char *fmt;
 376   va_list arg;
 377   va_start(arg);
 378   fmt = va_arg(arg, char *);
 379   vfinfo(config.map_file, fmt, arg);
 380   va_end(arg);
 381 }
 382
 383
 384
 385
 386
 387
 388 /*----------------------------------------------------------------------
 389   Functions to print the link map
 390  */
 391
 392 void
 393 DEFUN_VOID(print_space)
 394 {
 395   fprintf(config.map_file, " ");
 396 }
 397 void
 398 DEFUN_VOID(print_nl)
 399 {
 400   fprintf(config.map_file, "\n");
 401 }
 402 void
 403 DEFUN(print_address,(value),
 404       bfd_vma value)
 405 {
 406   fprintf_vma(config.map_file, value);
 407 }