Nick Clifton
28 years ago
7 changed files with 138 additions and 33 deletions
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/* Generic relocation support for BFD.
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Copyright (C) 1998 Free Software Foundation, Inc. |
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This file is part of BFD, the Binary File Descriptor library. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software Foundation, |
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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/* These macros are used by the various elf/*.h target specific header
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files to either generate an enum containing all the known relocations |
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for that target, or if RELOC_MACROS_GEN_FUNC is defined, a recognition |
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function is generated instead. (This is used by binutils/readelf.c) |
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Given a header file like this: |
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START_RELOC_NUMBERS (foo) |
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RELOC_NUMBER (R_foo_NONE, 0) |
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RELOC_NUMBER (R_foo_32, 1) |
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FAKE_RELOC (R_foo_illegal, 2) |
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EMPTY_RELOC (R_foo_max) |
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END_RELOC_NUMBERS |
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Then the following will be produced by default (ie if |
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RELOC_MACROS_GEN_FUNC is *not* defined). |
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enum foo { |
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R_foo_NONE = 0, |
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R_foo_32 = 1, |
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R_foo_illegal = 2, |
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R_foo_max |
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}; |
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If RELOC_MACROS_GEN_FUNC *is* defined, then instead the |
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following function will be generated: |
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static char * foo PARAMS ((unsigned long rtype)); |
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static char * |
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foo (rtype) |
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unsigned long rtype; |
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{ |
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switch (rtype) |
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{ |
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case 0: return "R_foo_NONE"; |
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case 1: return "R_foo_32"; |
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default: return NULL; |
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} |
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} |
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*/ |
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#ifndef _RELOC_MACROS_H |
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#define _RELOC_MACROS_H |
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#ifdef RELOC_MACROS_GEN_FUNC |
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/* This function takes the relocation number and returns the
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string version name of the name of that relocation. If |
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the relocation is not recognised, NULL is returned. */ |
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#define START_RELOC_NUMBERS(name) \ |
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static const char * name PARAMS ((unsigned long rtype)); \ |
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static const char * \ |
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name (rtype) \ |
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unsigned long rtype; \ |
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{ \ |
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switch (rtype) \ |
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{ |
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#ifdef __STDC__ |
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#define RELOC_NUMBER(name, number) case number : return #name ; |
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#else |
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#define RELOC_NUMBER(name, number) case number : return "name" ; |
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#endif |
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#define FAKE_RELOC(name, number) |
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#define EMPTY_RELOC(name) |
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#define END_RELOC_NUMBERS default: return NULL; \ |
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} \ |
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} |
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#else /* default to generating enum */ |
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#define START_RELOC_NUMBERS(name) enum name { |
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#define RELOC_NUMBER(name, number) name = number , |
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#define FAKE_RELOC(name, number) name = number , |
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#define EMPTY_RELOC(name) name , |
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#define END_RELOC_NUMBERS }; |
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#endif |
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#endif /* RELOC_MACROS_H */ |
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