From a3acbf46947e52ff596461a4cf6f539884c9dbbd Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Mon, 3 May 1999 07:29:06 +0000
Subject: 19990502 sourceware import

---
 include/elf/reloc-macros.h | 116 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 include/elf/reloc-macros.h

(limited to 'include/elf/reloc-macros.h')

diff --git a/include/elf/reloc-macros.h b/include/elf/reloc-macros.h
new file mode 100644
index 000000000..976229129
--- /dev/null
+++ b/include/elf/reloc-macros.h
@@ -0,0 +1,116 @@
+/* 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 char * foo PARAMS ((unsigned long rtype));
+   	static 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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