Subversion Repositories Kolibri OS

/* ldmisc.c

   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,

   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011, 2012, 2013

   Free Software Foundation, Inc.

   Written by Steve Chamberlain of Cygnus Support.

   This file is part of the GNU Binutils.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#include "sysdep.h"

#include "bfd.h"

#include "bfdlink.h"

#include "libiberty.h"

#include "filenames.h"

#include "demangle.h"

#include 

#include "ld.h"

#include "ldmisc.h"

#include "ldexp.h"

#include "ldlang.h"

#include 

#include "ldlex.h"

#include "ldmain.h"

#include "ldfile.h"

#include "elf-bfd.h"

/*

 %% literal %

 %A section name from a section

 %B filename from a bfd

 %C clever filename:linenumber with function

 %D like %C, but no function name

 %E current bfd error or errno

 %F error is fatal

 %G like %D, but only function name

 %H like %C but in addition emit section+offset

 %I filename from a lang_input_statement_type

 %P print program name

 %R info about a relent

 %S print script file and linenumber from etree_type.

 %T symbol name

 %V hex bfd_vma

 %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces

 %X no object output, fail return

 %d integer, like printf

 %ld long, like printf

 %lu unsigned long, like printf

 %p native (host) void* pointer, like printf

 %s arbitrary string, like printf

 %u integer, like printf

 %v hex bfd_vma, no leading zeros

*/

void

vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)

{

  bfd_boolean fatal = FALSE;

  while (*fmt != '\0')

    {

      const char *str = fmt;

      while (*fmt != '%' && *fmt != '\0')

	fmt++;

      if (fmt != str)

	if (fwrite (str, 1, fmt - str, fp))

	  {

	    /* Ignore.  */

	  }

      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"));

		    break;

		  }

		else if (demangling)

		  {

		    char *demangled;

		    demangled = bfd_demangle (link_info.output_bfd, name,

					      DMGL_ANSI | DMGL_PARAMS);

		    if (demangled != NULL)

		      {

			fprintf (fp, "%s", demangled);

			free (demangled);

			break;

		      }

		  }

		fprintf (fp, "%s", name);

	      }

	      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

		    && filename_cmp (i->local_sym_name, i->filename) != 0)

		  fprintf (fp, " (%s)", i->filename);

	      }

	      break;

	    case 'S':

	      /* Print script file and linenumber.  */

	      {

		etree_type node;

		etree_type *tp = va_arg (arg, etree_type *);

		if (tp == NULL)

		  {

		    tp = &node;

		    tp->type.filename = ldlex_filename ();

		    tp->type.lineno = lineno;

		  }

		if (tp->type.filename != NULL)

		  fprintf (fp, "%s:%u", tp->type.filename, tp->type.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':

	    case 'H':

	      /* 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;

		asymbol **asymbols = NULL;

		const char *filename;

		const char *functionname;

		unsigned int linenumber;

		bfd_boolean discard_last;

		bfd_boolean done;

		abfd = va_arg (arg, bfd *);

		section = va_arg (arg, asection *);

		offset = va_arg (arg, bfd_vma);

		if (abfd != NULL)

		  {

		    if (!bfd_generic_link_read_symbols (abfd))

		      einfo (_("%B%F: could not read symbols: %E\n"), abfd);

		    asymbols = bfd_get_outsymbols (abfd);

		  }

		/* 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 instead.  */

		discard_last = TRUE;

		if (abfd != NULL

		    && bfd_find_nearest_line (abfd, section, asymbols, offset,

					      &filename, &functionname,

					      &linenumber))

		  {

		    if (functionname != NULL

			&& (fmt[-1] == 'C' || fmt[-1] == 'H'))

		      {

			/* 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

				&& filename_cmp (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);

		    done = fmt[-1] != 'H';

		    if (functionname != NULL && fmt[-1] == 'G')

		      lfinfo (fp, "%T", functionname);

		    else if (filename != NULL && linenumber != 0)

		      fprintf (fp, "%u%s", linenumber, done ? "" : ":");

		    else

		      done = FALSE;

		  }

		else

		  {

		    lfinfo (fp, "%B:", abfd);

		    done = FALSE;

		  }

		if (!done)

		  lfinfo (fp, "(%A+0x%v)", section, offset);

		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 'p':

	      /* native (host) void* pointer, like printf */

	      fprintf (fp, "%p", va_arg (arg, void *));

	      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);

}

/* Format info message and print on stdout.  */

/* (You would think this should be called just "info", but then you

   would be hosed by LynxOS, which defines that name in its libc.)  */

void

info_msg (const char *fmt, ...)

{

  va_list arg;

  va_start (arg, fmt);

  vfinfo (stdout, fmt, arg, FALSE);

  va_end (arg);

}

/* ('e' for error.) Format info message and print on stderr.  */

void

einfo (const char *fmt, ...)

{

  va_list arg;

  fflush (stdout);

  va_start (arg, fmt);

  vfinfo (stderr, fmt, arg, TRUE);

  va_end (arg);

  fflush (stderr);

}

void

info_assert (const char *file, unsigned int line)

{

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

}

/* ('m' for map) Format info message and print on map.  */

void

minfo (const char *fmt, ...)

{

  if (config.map_file != NULL)

    {

      va_list arg;

      va_start (arg, fmt);

      vfinfo (config.map_file, fmt, arg, FALSE);

      va_end (arg);

    }

}

void

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

{

  va_list arg;

  va_start (arg, fmt);

  vfinfo (file, fmt, arg, FALSE);

  va_end (arg);

}

/* Functions to print the link map.  */

void

print_space (void)

{

  fprintf (config.map_file, " ");

}

void

print_nl (void)

{

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

}

/* A more or less friendly abort message.  In ld.h abort is defined to

   call this function.  */

void

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

{

  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);

}