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+/* a.out object file format
+ Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GAS, the GNU Assembler.
+
+GAS 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 1,
+or (at your option) any later version.
+
+GAS 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 GAS; see the file COPYING. If not, write
+to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* $Id$ */
+
+/* Tag to validate a.out object file format processing */
+#define OBJ_AOUT 1
+
+#include "targ-cpu.h"
+
+#ifndef VMS
+#include "a.out.gnu.h" /* Needed to define struct nlist. Sigh. */
+#else
+#include "a_out.h"
+#endif
+
+extern const short seg_N_TYPE[];
+extern const segT N_TYPE_seg[];
+
+#ifndef DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE
+#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (OMAGIC)
+#endif /* DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE */
+
+/* SYMBOL TABLE */
+/* Symbol table entry data type */
+
+typedef struct nlist obj_symbol_type; /* Symbol table entry */
+
+/* If compiler generate leading underscores, remove them. */
+
+#ifndef STRIP_UNDERSCORE
+#define STRIP_UNDERSCORE 0
+#endif /* STRIP_UNDERSCORE */
+
+/* Symbol table macros and constants */
+
+/*
+ * Macros to extract information from a symbol table entry.
+ * This syntaxic indirection allows independence regarding a.out or coff.
+ * The argument (s) of all these macros is a pointer to a symbol table entry.
+ */
+
+/* True if the symbol is external */
+#define S_IS_EXTERNAL(s) ((s)->sy_symbol.n_type & N_EXT)
+
+/* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
+#define S_IS_DEFINED(s) ((S_GET_TYPE(s) != N_UNDF) || (S_GET_OTHER(s) != 0) || (S_GET_DESC(s) != 0))
+
+#define S_IS_REGISTER(s) ((s)->sy_symbol.n_type == N_REGISTER)
+
+/* True if a debug special symbol entry */
+#define S_IS_DEBUG(s) ((s)->sy_symbol.n_type & N_STAB)
+/* True if a symbol is local symbol name */
+/* A symbol name whose name begin with ^A is a gas internal pseudo symbol
+ nameless symbols come from .stab directives. */
+#define S_IS_LOCAL(s) (S_GET_NAME(s) && \
+ !S_IS_DEBUG(s) && \
+ (S_GET_NAME(s)[0] == '\001' || \
+ (S_LOCAL_NAME(s) && !flagseen['L'])))
+/* True if a symbol is not defined in this file */
+#define S_IS_EXTERN(s) ((s)->sy_symbol.n_type & N_EXT)
+/* True if the symbol has been generated because of a .stabd directive */
+#define S_IS_STABD(s) (S_GET_NAME(s) == (char *)0)
+
+/* Accessors */
+/* The value of the symbol */
+#define S_GET_VALUE(s) (((s)->sy_symbol.n_value))
+/* The name of the symbol */
+#define S_GET_NAME(s) ((s)->sy_symbol.n_un.n_name)
+/* The pointer to the string table */
+#define S_GET_OFFSET(s) ((s)->sy_symbol.n_un.n_strx)
+/* The type of the symbol */
+#define S_GET_TYPE(s) ((s)->sy_symbol.n_type & N_TYPE)
+/* The numeric value of the segment */
+#define S_GET_SEGMENT(s) (N_TYPE_seg[S_GET_TYPE(s)])
+/* The n_other expression value */
+#define S_GET_OTHER(s) ((s)->sy_symbol.n_other)
+/* The n_desc expression value */
+#define S_GET_DESC(s) ((s)->sy_symbol.n_desc)
+
+/* Modifiers */
+/* Set the value of the symbol */
+#define S_SET_VALUE(s,v) ((s)->sy_symbol.n_value = (unsigned long) (v))
+/* Assume that a symbol cannot be simultaneously in more than on segment */
+ /* set segment */
+#define S_SET_SEGMENT(s,seg) ((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type|=SEGMENT_TO_SYMBOL_TYPE(seg))
+/* The symbol is external */
+#define S_SET_EXTERNAL(s) ((s)->sy_symbol.n_type |= N_EXT)
+/* The symbol is not external */
+#define S_CLEAR_EXTERNAL(s) ((s)->sy_symbol.n_type &= ~N_EXT)
+/* Set the name of the symbol */
+#define S_SET_NAME(s,v) ((s)->sy_symbol.n_un.n_name = (v))
+/* Set the offset in the string table */
+#define S_SET_OFFSET(s,v) ((s)->sy_symbol.n_un.n_strx = (v))
+/* Set the n_other expression value */
+#define S_SET_OTHER(s,v) ((s)->sy_symbol.n_other = (v))
+/* Set the n_desc expression value */
+#define S_SET_DESC(s,v) ((s)->sy_symbol.n_desc = (v))
+
+/* File header macro and type definition */
+
+#define H_GET_FILE_SIZE(h) (sizeof(struct exec) + \
+ H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
+ H_GET_SYMBOL_TABLE_SIZE(h) + \
+ H_GET_TEXT_RELOCATION_SIZE(h) + \
+ H_GET_DATA_RELOCATION_SIZE(h) + \
+ (h)->string_table_size)
+
+#define H_GET_TEXT_SIZE(h) ((h)->header.a_text)
+#define H_GET_DATA_SIZE(h) ((h)->header.a_data)
+#define H_GET_BSS_SIZE(h) ((h)->header.a_bss)
+#define H_GET_TEXT_RELOCATION_SIZE(h) ((h)->header.a_trsize)
+#define H_GET_DATA_RELOCATION_SIZE(h) ((h)->header.a_drsize)
+#define H_GET_SYMBOL_TABLE_SIZE(h) ((h)->header.a_syms)
+#define H_GET_MAGIC_NUMBER(h) ((h)->header.a_info)
+#define H_GET_ENTRY_POINT(h) ((h)->header.a_entry)
+#define H_GET_STRING_SIZE(h) ((h)->string_table_size)
+#ifdef EXEC_MACHINE_TYPE
+#define H_GET_MACHINE_TYPE(h) ((h)->header.a_machtype)
+#endif /* EXEC_MACHINE_TYPE */
+#ifdef EXEC_VERSION
+#define H_GET_VERSION(h) ((h)->header.a_version)
+#endif /* EXEC_VERSION */
+
+#define H_SET_TEXT_SIZE(h,v) ((h)->header.a_text = md_section_align(SEG_TEXT, (v)))
+#define H_SET_DATA_SIZE(h,v) ((h)->header.a_data = md_section_align(SEG_DATA, (v)))
+#define H_SET_BSS_SIZE(h,v) ((h)->header.a_bss = md_section_align(SEG_BSS, (v)))
+
+#define H_SET_RELOCATION_SIZE(h,t,d) (H_SET_TEXT_RELOCATION_SIZE((h),(t)),\
+ H_SET_DATA_RELOCATION_SIZE((h),(d)))
+
+#define H_SET_TEXT_RELOCATION_SIZE(h,v) ((h)->header.a_trsize = (v))
+#define H_SET_DATA_RELOCATION_SIZE(h,v) ((h)->header.a_drsize = (v))
+#define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->header.a_syms = (v) * \
+ sizeof(struct nlist))
+
+#define H_SET_MAGIC_NUMBER(h,v) ((h)->header.a_info = (v))
+
+#define H_SET_ENTRY_POINT(h,v) ((h)->header.a_entry = (v))
+#define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
+#ifdef EXEC_MACHINE_TYPE
+#define H_SET_MACHINE_TYPE(h,v) ((h)->header.a_machtype = (v))
+#endif /* EXEC_MACHINE_TYPE */
+#ifdef EXEC_VERSION
+#define H_SET_VERSION(h,v) ((h)->header.a_version = (v))
+#endif /* EXEC_VERSION */
+
+/*
+ * Current means for getting the name of a segment.
+ * This will change for infinite-segments support (e.g. COFF).
+ */
+#define segment_name(seg) ( seg_name[(int)(seg)] )
+extern char *const seg_name[];
+
+typedef struct {
+ struct exec header; /* a.out header */
+ long string_table_size; /* names + '\0' + sizeof(int) */
+} object_headers;
+
+/* line numbering stuff. */
+#define OBJ_EMIT_LINENO(a, b, c) ;
+#define obj_pre_write_hook(a) ;
+
+/*
+ * Local Variables:
+ * comment-column: 0
+ * fill-column: 131
+ * End:
+ */
+
+/* end of obj-aout.h */