/* obj-aout.h, a.out object file format for gas, the assembler.
- Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 98, 99, 2000
- Free Software Foundation, Inc.
+ Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000,
+ 2002, 2003, 2005 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
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, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ 02111-1307, USA. */
/* Tag to validate a.out object file format processing */
#define OBJ_AOUT 1
#else /* ! BFD_ASSEMBLER */
#ifndef VMS
-#include "aout_gnu.h" /* Needed to define struct nlist. Sigh. */
+#include "aout_gnu.h" /* Needed to define struct nlist. Sigh. */
#else
#include "a_out.h"
#endif
#define obj_pop_insert() pop_insert (aout_pseudo_table)
#endif
-/* SYMBOL TABLE */
-/* Symbol table entry data type */
+/* Symbol table entry data type. */
-typedef struct nlist obj_symbol_type; /* Symbol table entry */
+typedef struct nlist obj_symbol_type; /* Symbol table entry. */
/* Symbol table macros and constants */
asection *text_section, *data_section, *bss_section;
#define obj_frob_symbol(S,PUNT) obj_aout_frob_symbol (S, &PUNT)
-#define obj_frob_file() obj_aout_frob_file ()
-extern void obj_aout_frob_symbol PARAMS ((symbolS *, int *));
-extern void obj_aout_frob_file PARAMS ((void));
+#define obj_frob_file_before_fix() obj_aout_frob_file_before_fix ()
-#define obj_sec_sym_ok_for_reloc(SEC) (1)
+extern void obj_aout_frob_symbol (symbolS *, int *);
+extern void obj_aout_frob_file_before_fix (void);
+
+#define obj_sec_sym_ok_for_reloc(SEC) 1
#else
/* We use the sy_obj field to record whether a symbol is weak. */
#define OBJ_SYMFIELD_TYPE char
-/*
- * 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.
- */
+/* Macros to extract information from a symbol table entry.
+ This syntactic 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 */
+/* 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 */
+/* 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_DESC (s) != 0)
#define S_IS_COMMON(s) \
(S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (s) != 0)
+/* Return true for symbols that should not be reduced to section
+ symbols or eliminated from expressions, because they may be
+ overridden by the linker. */
+#define S_FORCE_RELOC(s, strict) \
+ (!SEG_NORMAL (S_GET_SEGMENT (s)))
+
#define S_IS_REGISTER(s) ((s)->sy_symbol.n_type == N_REGISTER)
-/* True if a debug special symbol entry */
+/* 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 */
+/* True if a symbol is local symbol name. */
#define S_IS_LOCAL(s) \
((S_GET_NAME (s) \
&& !S_IS_DEBUG (s) \
|| (flag_strip_local_absolute \
&& ! S_IS_EXTERNAL(s) \
&& S_GET_SEGMENT (s) == absolute_section))
-/* True if a symbol is not defined in this file */
+/* 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)
+/* True if the symbol has been generated because of a .stabd directive. */
+#define S_IS_STABD(s) (S_GET_NAME(s) == NULL)
-/* Accessors */
-/* The name of the symbol */
+/* Accessors. */
+/* The name of the symbol. */
#define S_GET_NAME(s) ((s)->sy_symbol.n_un.n_name)
-/* The pointer to the string table */
+/* The pointer to the string table. */
#define S_GET_OFFSET(s) ((s)->sy_symbol.n_un.n_strx)
-/* The type of the symbol */
+/* The type of the symbol. */
#define S_GET_TYPE(s) ((s)->sy_symbol.n_type & N_TYPE)
-/* The numeric value of the segment */
+/* The numeric value of the segment. */
#define S_GET_SEGMENT(s) (N_TYPE_seg[S_GET_TYPE(s)])
-/* The n_other expression value */
+/* The n_other expression value. */
#define S_GET_OTHER(s) ((s)->sy_symbol.n_other)
-/* The n_desc expression value */
+/* The n_desc expression value. */
#define S_GET_DESC(s) ((s)->sy_symbol.n_desc)
/* Whether the symbol is weak. */
#define S_GET_WEAK(s) ((s)->sy_obj)
-/* Modifiers */
-/* 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 */
+/* Modifiers. */
+/* 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 */
+/* The symbol is not external. */
#define S_CLEAR_EXTERNAL(s) ((s)->sy_symbol.n_type &= ~N_EXT)
-/* Set the name of the symbol */
+/* 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 */
+/* Set the offset in the string table. */
#define S_SET_OFFSET(s,v) ((s)->sy_symbol.n_un.n_strx = (v))
-/* Set the n_type field */
+/* Set the n_type field. */
#define S_SET_TYPE(s,t) ((s)->sy_symbol.n_type = (t))
-/* Set the n_other expression value */
+/* Set the n_other expression value. */
#define S_SET_OTHER(s,v) ((s)->sy_symbol.n_other = (v))
-/* Set the n_desc expression value */
+/* Set the n_desc expression value. */
#define S_SET_DESC(s,v) ((s)->sy_symbol.n_desc = (v))
/* Mark the symbol as weak. This causes n_type to be adjusted when
the symbol is written out. */
#define S_SET_WEAK(s) ((s)->sy_obj = 1)
-/* File header macro and type definition */
+/* File header macro and type definition. */
-#define H_GET_FILE_SIZE(h) (H_GET_HEADER_SIZE(h) \
- + 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_GET_STRING_SIZE(h))
+#define H_GET_FILE_SIZE(h) (H_GET_HEADER_SIZE (h) \
+ + H_GET_TEXT_SIZE (h) \
+ + H_GET_DATA_SIZE (h) \
+ + H_GET_TEXT_RELOCATION_SIZE (h) \
+ + H_GET_DATA_RELOCATION_SIZE (h) \
+ + H_GET_LINENO_SIZE (h) \
+ + H_GET_SYMBOL_TABLE_SIZE (h) \
+ + H_GET_STRING_SIZE (h))
#define H_GET_HEADER_SIZE(h) (EXEC_BYTES_SIZE)
#define H_GET_TEXT_SIZE(h) ((h)->header.a_text)
#define H_GET_MAGIC_NUMBER(h) ((h)->header.a_info & 0xffff)
#define H_SET_DYNAMIC(h,v) ((h)->header.a_info = (((v) << 31) \
- | (H_GET_VERSION(h) << 24) \
- | (H_GET_MACHTYPE(h) << 16) \
- | (H_GET_MAGIC_NUMBER(h))))
+ | (H_GET_VERSION (h) << 24) \
+ | (H_GET_MACHTYPE (h) << 16) \
+ | (H_GET_MAGIC_NUMBER (h))))
-#define H_SET_VERSION(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC(h) << 31) \
+#define H_SET_VERSION(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC (h) << 31) \
| ((v) << 24) \
- | (H_GET_MACHTYPE(h) << 16) \
- | (H_GET_MAGIC_NUMBER(h))))
+ | (H_GET_MACHTYPE (h) << 16) \
+ | (H_GET_MAGIC_NUMBER (h))))
-#define H_SET_MACHTYPE(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC(h) << 31) \
- | (H_GET_VERSION(h) << 24) \
+#define H_SET_MACHTYPE(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC (h) << 31) \
+ | (H_GET_VERSION (h) << 24) \
| ((v) << 16) \
- | (H_GET_MAGIC_NUMBER(h))))
+ | (H_GET_MAGIC_NUMBER (h))))
-#define H_SET_MAGIC_NUMBER(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC(h) << 31) \
- | (H_GET_VERSION(h) << 24) \
- | (H_GET_MACHTYPE(h) << 16) \
+#define H_SET_MAGIC_NUMBER(h,v) ((h)->header.a_info = ((H_GET_DYNAMIC (h) << 31) \
+ | (H_GET_VERSION (h) << 24) \
+ | (H_GET_MACHTYPE (h) << 16) \
| ((v))))
-#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_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_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_STRING_SIZE(h,v) ((h)->string_table_size = (v))
typedef struct
- {
- struct exec header; /* a.out header */
- long string_table_size; /* names + '\0' + sizeof(int) */
- }
+{
+ struct exec header; /* a.out header. */
+ long string_table_size; /* names + '\0' + sizeof (int). */
+}
object_headers;
-/* line numbering stuff. */
+/* Line numbering stuff. */
#define OBJ_EMIT_LINENO(a, b, c) {;}
struct fix;
-void tc_aout_fix_to_chars PARAMS ((char *where, struct fix *fixP, relax_addressT segment_address));
+extern void tc_aout_fix_to_chars (char *, struct fix *, relax_addressT);
#endif
#define EMIT_SECTION_SYMBOLS 0
#define AOUT_STABS
-
-/* end of obj-aout.h */
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