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cell-binutils  2.17cvs20070401
Functions
ldmisc.c File Reference
#include "bfd.h"
#include "bfdlink.h"
#include "sysdep.h"
#include "libiberty.h"
#include "demangle.h"
#include <stdarg.h>
#include "ld.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include <ldgram.h>
#include "ldlex.h"
#include "ldmain.h"
#include "ldfile.h"
#include "elf-bfd.h"

Go to the source code of this file.

Functions

static void vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)
char * demangle (const char *name)
void info_msg (const char *fmt,...)
void einfo (const char *fmt,...)
void info_assert (const char *file, unsigned int line)
void minfo (const char *fmt,...)
void lfinfo (FILE *file, const char *fmt,...)
void print_space (void)
void print_nl (void)
void ld_abort (const char *file, int line, const char *fn)

Function Documentation

char* demangle ( const char *  name)

Definition at line 439 of file ldmisc.c.

{
  char *res;
  const char *p;

  if (output_bfd != NULL
      && bfd_get_symbol_leading_char (output_bfd) == name[0])
    ++name;

  /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
     or the MS PE format.  These formats have a number of leading '.'s
     on at least some symbols, so we remove all dots to avoid
     confusing the demangler.  */
  p = name;
  while (*p == '.')
    ++p;

  res = cplus_demangle (p, DMGL_ANSI | DMGL_PARAMS);
  if (res)
    {
      size_t dots = p - name;

      /* Now put back any stripped dots.  */
      if (dots != 0)
       {
         size_t len = strlen (res) + 1;
         char *add_dots = xmalloc (len + dots);

         memcpy (add_dots, name, dots);
         memcpy (add_dots + dots, res, len);
         free (res);
         res = add_dots;
       }
      return res;
    }
  return xstrdup (name);
}

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void einfo ( const char *  fmt,
  ... 
)

Definition at line 495 of file ldmisc.c.

{
  va_list arg;

  va_start (arg, fmt);
  vfinfo (stderr, fmt, arg, TRUE);
  va_end (arg);
}

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void info_assert ( const char *  file,
unsigned int  line 
)

Definition at line 505 of file ldmisc.c.

{
  einfo (_("%F%P: internal error %s %d\n"), file, line);
}

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void info_msg ( const char *  fmt,
  ... 
)

Definition at line 483 of file ldmisc.c.

{
  va_list arg;

  va_start (arg, fmt);
  vfinfo (stdout, fmt, arg, FALSE);
  va_end (arg);
}

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void ld_abort ( const char *  file,
int  line,
const char *  fn 
)

Definition at line 550 of file ldmisc.c.

{
  if (fn != NULL)
    einfo (_("%P: internal error: aborting at %s line %d in %s\n"),
          file, line, fn);
  else
    einfo (_("%P: internal error: aborting at %s line %d\n"),
          file, line);
  einfo (_("%P%F: please report this bug\n"));
  xexit (1);
}

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void lfinfo ( FILE *  file,
const char *  fmt,
  ... 
)

Definition at line 523 of file ldmisc.c.

{
  va_list arg;

  va_start (arg, fmt);
  vfinfo (file, fmt, arg, FALSE);
  va_end (arg);
}

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void minfo ( const char *  fmt,
  ... 
)

Definition at line 513 of file ldmisc.c.

{
  va_list arg;

  va_start (arg, fmt);
  vfinfo (config.map_file, fmt, arg, FALSE);
  va_end (arg);
}

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void print_nl ( void  )

Definition at line 541 of file ldmisc.c.

{
  fprintf (config.map_file, "\n");
}

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void print_space ( void  )

Definition at line 535 of file ldmisc.c.

{
  fprintf (config.map_file, " ");
}

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static void vfinfo ( FILE *  fp,
const char *  fmt,
va_list  arg,
bfd_boolean  is_warning 
) [static]

Definition at line 66 of file ldmisc.c.

{
  bfd_boolean fatal = FALSE;

  while (*fmt != '\0')
    {
      while (*fmt != '%' && *fmt != '\0')
       {
         putc (*fmt, fp);
         fmt++;
       }

      if (*fmt == '%')
       {
         fmt++;
         switch (*fmt++)
           {
           case '%':
             /* literal % */
             putc ('%', fp);
             break;

           case 'X':
             /* no object output, fail return */
             config.make_executable = FALSE;
             break;

           case 'V':
             /* hex bfd_vma */
             {
              bfd_vma value = va_arg (arg, bfd_vma);
              fprintf_vma (fp, value);
             }
             break;

           case 'v':
             /* hex bfd_vma, no leading zeros */
             {
              char buf[100];
              char *p = buf;
              bfd_vma value = va_arg (arg, bfd_vma);
              sprintf_vma (p, value);
              while (*p == '0')
                p++;
              if (!*p)
                p--;
              fputs (p, fp);
             }
             break;

           case 'W':
             /* hex bfd_vma with 0x with no leading zeroes taking up
               8 spaces.  */
             {
              char buf[100];
              bfd_vma value;
              char *p;
              int len;

              value = va_arg (arg, bfd_vma);
              sprintf_vma (buf, value);
              for (p = buf; *p == '0'; ++p)
                ;
              if (*p == '\0')
                --p;
              len = strlen (p);
              while (len < 8)
                {
                  putc (' ', fp);
                  ++len;
                }
              fprintf (fp, "0x%s", p);
             }
             break;

           case 'T':
             /* Symbol name.  */
             {
              const char *name = va_arg (arg, const char *);

              if (name == NULL || *name == 0)
                fprintf (fp, _("no symbol"));
              else if (! demangling)
                fprintf (fp, "%s", name);
              else
                {
                  char *demangled;

                  demangled = demangle (name);
                  fprintf (fp, "%s", demangled);
                  free (demangled);
                }
             }
             break;

           case 'A':
             /* section name from a section */
             {
              asection *sec = va_arg (arg, asection *);
              bfd *abfd = sec->owner;
              const char *group = NULL;
              struct coff_comdat_info *ci;

              fprintf (fp, "%s", sec->name);
              if (abfd != NULL
                  && bfd_get_flavour (abfd) == bfd_target_elf_flavour
                  && elf_next_in_group (sec) != NULL
                  && (sec->flags & SEC_GROUP) == 0)
                group = elf_group_name (sec);
              else if (abfd != NULL
                      && bfd_get_flavour (abfd) == bfd_target_coff_flavour
                      && (ci = bfd_coff_get_comdat_section (sec->owner,
                                                        sec)) != NULL)
                group = ci->name;
              if (group != NULL)
                fprintf (fp, "[%s]", group);
             }
             break;

           case 'B':
             /* filename from a bfd */
             {
              bfd *abfd = va_arg (arg, bfd *);

              if (abfd == NULL)
                fprintf (fp, "%s generated", program_name);
              else if (abfd->my_archive)
                fprintf (fp, "%s(%s)", abfd->my_archive->filename,
                        abfd->filename);
              else
                fprintf (fp, "%s", abfd->filename);
             }
             break;

           case 'F':
             /* Error is fatal.  */
             fatal = TRUE;
             break;

           case 'P':
             /* Print program name.  */
             fprintf (fp, "%s", program_name);
             break;

           case 'E':
             /* current bfd error or errno */
             fprintf (fp, "%s", bfd_errmsg (bfd_get_error ()));
             break;

           case 'I':
             /* filename from a lang_input_statement_type */
             {
              lang_input_statement_type *i;

              i = va_arg (arg, lang_input_statement_type *);
              if (bfd_my_archive (i->the_bfd) != NULL)
                fprintf (fp, "(%s)",
                        bfd_get_filename (bfd_my_archive (i->the_bfd)));
              fprintf (fp, "%s", i->local_sym_name);
              if (bfd_my_archive (i->the_bfd) == NULL
                  && strcmp (i->local_sym_name, i->filename) != 0)
                fprintf (fp, " (%s)", i->filename);
             }
             break;

           case 'S':
             /* Print script file and linenumber.  */
             if (parsing_defsym)
              fprintf (fp, "--defsym %s", lex_string);
             else if (ldfile_input_filename != NULL)
              fprintf (fp, "%s:%u", ldfile_input_filename, lineno);
             else
              fprintf (fp, _("built in linker script:%u"), lineno);
             break;

           case 'R':
             /* Print all that's interesting about a relent.  */
             {
              arelent *relent = va_arg (arg, arelent *);

              lfinfo (fp, "%s+0x%v (type %s)",
                     (*(relent->sym_ptr_ptr))->name,
                     relent->addend,
                     relent->howto->name);
             }
             break;

           case 'C':
           case 'D':
           case 'G':
             /* Clever filename:linenumber with function name if possible.
               The arguments are a BFD, a section, and an offset.  */
             {
              static bfd *last_bfd;
              static char *last_file = NULL;
              static char *last_function = NULL;
              bfd *abfd;
              asection *section;
              bfd_vma offset;
              lang_input_statement_type *entry;
              asymbol **asymbols;
              const char *filename;
              const char *functionname;
              unsigned int linenumber;
              bfd_boolean discard_last;

              abfd = va_arg (arg, bfd *);
              section = va_arg (arg, asection *);
              offset = va_arg (arg, bfd_vma);

              if (abfd == NULL)
                {
                  entry = NULL;
                  asymbols = NULL;
                }
              else
                {
                  entry = (lang_input_statement_type *) abfd->usrdata;
                  if (entry != (lang_input_statement_type *) NULL
                     && entry->asymbols != (asymbol **) NULL)
                    asymbols = entry->asymbols;
                  else
                    {
                     long symsize;
                     long sym_count;

                     symsize = bfd_get_symtab_upper_bound (abfd);
                     if (symsize < 0)
                       einfo (_("%B%F: could not read symbols\n"), abfd);
                     asymbols = xmalloc (symsize);
                     sym_count = bfd_canonicalize_symtab (abfd, asymbols);
                     if (sym_count < 0)
                       einfo (_("%B%F: could not read symbols\n"), abfd);
                     if (entry != (lang_input_statement_type *) NULL)
                       {
                         entry->asymbols = asymbols;
                         entry->symbol_count = sym_count;
                       }
                    }
                }

              /* The GNU Coding Standard requires that error messages
                 be of the form:
                 
                   source-file-name:lineno: message

                 We do not always have a line number available so if
                 we cannot find them we print out the section name and
                 offset instread.  */
              discard_last = TRUE;
              if (abfd != NULL
                  && bfd_find_nearest_line (abfd, section, asymbols, offset,
                                         &filename, &functionname,
                                         &linenumber))
                {
                  if (functionname != NULL && fmt[-1] == 'C')
                    {
                     /* Detect the case where we are printing out a
                        message for the same function as the last
                        call to vinfo ("%C").  In this situation do
                        not print out the ABFD filename or the
                        function name again.  Note - we do still
                        print out the source filename, as this will
                        allow programs that parse the linker's output
                        (eg emacs) to correctly locate multiple
                        errors in the same source file.  */
                     if (last_bfd == NULL
                         || last_file == NULL
                         || last_function == NULL
                         || last_bfd != abfd
                         || (filename != NULL
                            && strcmp (last_file, filename) != 0)
                         || strcmp (last_function, functionname) != 0)
                       {
                         lfinfo (fp, _("%B: In function `%T':\n"),
                                abfd, functionname);

                         last_bfd = abfd;
                         if (last_file != NULL)
                           free (last_file);
                         last_file = NULL;
                         if (filename)
                           last_file = xstrdup (filename);
                         if (last_function != NULL)
                           free (last_function);
                         last_function = xstrdup (functionname);
                       }
                     discard_last = FALSE;
                    }
                  else
                    lfinfo (fp, "%B:", abfd);

                  if (filename != NULL)
                    fprintf (fp, "%s:", filename);

                  if (functionname != NULL && fmt[-1] == 'G')
                    lfinfo (fp, "%T", functionname);
                  else if (filename != NULL && linenumber != 0)
                    fprintf (fp, "%u", linenumber);
                  else
                    lfinfo (fp, "(%A+0x%v)", section, offset);
                }
              else
                lfinfo (fp, "%B:(%A+0x%v)", abfd, section, offset);

              if (asymbols != NULL && entry == NULL)
                free (asymbols);

              if (discard_last)
                {
                  last_bfd = NULL;
                  if (last_file != NULL)
                    {
                     free (last_file);
                     last_file = NULL;
                    }
                  if (last_function != NULL)
                    {
                     free (last_function);
                     last_function = NULL;
                    }
                }
             }
             break;

           case 's':
             /* arbitrary string, like printf */
             fprintf (fp, "%s", va_arg (arg, char *));
             break;

           case 'd':
             /* integer, like printf */
             fprintf (fp, "%d", va_arg (arg, int));
             break;

           case 'u':
             /* unsigned integer, like printf */
             fprintf (fp, "%u", va_arg (arg, unsigned int));
             break;

           case 'l':
             if (*fmt == 'd')
              {
                fprintf (fp, "%ld", va_arg (arg, long));
                ++fmt;
                break;
              }
             else if (*fmt == 'u')
              {
                fprintf (fp, "%lu", va_arg (arg, unsigned long));
                ++fmt;
                break;
              }
             /* Fall thru */

           default:
             fprintf (fp, "%%%c", fmt[-1]);
             break;
           }
       }
    }

  if (is_warning && config.fatal_warnings)
    config.make_executable = FALSE;

  if (fatal)
    xexit (1);
}

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