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/***********************************************************************
* toolchain/nxflat/reloc-macros.h
*
* Generic relocation support for BFD.
* Copyright (C) 1998 Free Software Foundation, Inc.
*
* This file is part of BFD, the Binary File Descriptor library.
*
* 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
***********************************************************************
*
* These macros are used by the various *.h target specific header
* files to either generate an enum containing all the known relocations
* for that target, or if RELOC_MACROS_GEN_FUNC is defined, a recognition
* function is generated instead. (This is used by binutils/readelf.c)
*
* Given a header file like this:
*
* START_RELOC_NUMBERS (foo)
* RELOC_NUMBER (R_foo_NONE, 0)
* RELOC_NUMBER (R_foo_32, 1)
* FAKE_RELOC (R_foo_illegal, 2)
* EMPTY_RELOC (R_foo_max)
* END_RELOC_NUMBERS
*
* Then the following will be produced by default (ie if
* RELOC_MACROS_GEN_FUNC is *not* defined).
*
* enum foo
* {
* foo = -1,
* R_foo_NONE = 0,
* R_foo_32 = 1,
* R_foo_illegal = 2,
* R_foo_max
* };
*
* If RELOC_MACROS_GEN_FUNC *is* defined, then instead the
* following function will be generated:
*
* static const char * foo PARAMS ((unsigned long rtype));
* static const char *
* foo (rtype)
* unsigned long rtype;
* {
* switch (rtype)
* {
* case 0: return "R_foo_NONE";
* case 1: return "R_foo_32";
* default: return NULL;
* }
* }
***********************************************************************/
#ifndef _RELOC_MACROS_H
# define _RELOC_MACROS_H
# ifdef RELOC_MACROS_GEN_FUNC
/* This function takes the relocation number and returns the
* string version name of the name of that relocation. If
* the relocation is not recognised, NULL is returned.
*/
# define START_RELOC_NUMBERS(name) \
static const char * name PARAMS ((unsigned long rtype)); \
static const char * \
name (rtype) \
unsigned long rtype; \
{ \
switch (rtype) \
{
# ifdef __STDC__
# define RELOC_NUMBER(name, number) case number : return #name ;
# else
# define RELOC_NUMBER(name, number) case number : return "name" ;
# endif
# define FAKE_RELOC(name, number)
# define EMPTY_RELOC(name)
# define END_RELOC_NUMBERS \
default: return NULL; \
} \
}
# else /* Default to generating enum. */
/* Some compilers cannot cope with an enum that ends with a trailing
* comma, so START_RELOC_NUMBERS creates a fake reloc entry, (initialised
* to -1 so that the first real entry will still default to 0). Further
* entries then prepend a comma to their definitions, creating a list
* of enumerator entries that will satisfy these compilers.
*/
# ifdef __STDC__
# define START_RELOC_NUMBERS(name) enum name { _##name = -1
# else
# define START_RELOC_NUMBERS(name) enum name { name = -1
# endif
# define RELOC_NUMBER(name, number) , name = number
# define FAKE_RELOC(name, number) , name = number
# define EMPTY_RELOC(name) , name
# define END_RELOC_NUMBERS };
# endif
#endif /* RELOC_MACROS_H */
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