summaryrefslogtreecommitdiff
path: root/gas/config/obj-aout.h
diff options
context:
space:
mode:
Diffstat (limited to 'gas/config/obj-aout.h')
-rw-r--r--gas/config/obj-aout.h239
1 files changed, 239 insertions, 0 deletions
diff --git a/gas/config/obj-aout.h b/gas/config/obj-aout.h
new file mode 100644
index 0000000000..339070e093
--- /dev/null
+++ b/gas/config/obj-aout.h
@@ -0,0 +1,239 @@
+/* obj-aout.h, a.out object file format for gas, the assembler.
+ Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 1998
+ 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 2,
+ 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, 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
+
+/* Tag to validate a.out object file format processing */
+#define OBJ_AOUT 1
+
+#include "targ-cpu.h"
+
+#ifdef BFD_ASSEMBLER
+
+#include "bfd/libaout.h"
+
+#define OUTPUT_FLAVOR bfd_target_aout_flavour
+
+#else /* ! BFD_ASSEMBLER */
+
+#ifndef VMS
+#include "aout_gnu.h" /* Needed to define struct nlist. Sigh. */
+#else
+#include "a_out.h"
+#endif
+
+#ifndef AOUT_MACHTYPE
+#define AOUT_MACHTYPE 0
+#endif /* AOUT_MACHTYPE */
+
+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 */
+
+#endif /* ! BFD_ASSEMBLER */
+
+/* SYMBOL TABLE */
+/* Symbol table entry data type */
+
+typedef struct nlist obj_symbol_type; /* Symbol table entry */
+
+/* Symbol table macros and constants */
+
+#ifdef BFD_ASSEMBLER
+
+#define S_SET_OTHER(S,V) (aout_symbol((S)->bsym)->other = (V))
+#define S_SET_TYPE(S,T) (aout_symbol((S)->bsym)->type = (T))
+#define S_SET_DESC(S,D) (aout_symbol((S)->bsym)->desc = (D))
+#define S_GET_OTHER(S) (aout_symbol((S)->bsym)->other)
+#define S_GET_TYPE(S) (aout_symbol((S)->bsym)->type)
+#define S_GET_DESC(S) (aout_symbol((S)->bsym)->desc)
+
+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 ((struct symbol *, int *));
+extern void obj_aout_frob_file PARAMS ((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.
+ */
+
+/* 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_DESC (s) != 0)
+
+#define S_IS_COMMON(s) \
+ (S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (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 */
+#define S_IS_LOCAL(s) \
+ ((S_GET_NAME (s) \
+ && !S_IS_DEBUG (s) \
+ && (strchr (S_GET_NAME (s), '\001') != NULL \
+ || strchr (S_GET_NAME (s), '\002') != NULL \
+ || (S_LOCAL_NAME(s) && !flag_keep_locals))) \
+ || (flag_strip_local_absolute \
+ && ! S_IS_EXTERNAL(s) \
+ && S_GET_SEGMENT (s) == absolute_section))
+/* 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 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)
+/* 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 */
+#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_type field */
+#define S_SET_TYPE(s,t) ((s)->sy_symbol.n_type = (t))
+/* 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))
+/* 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 */
+
+#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_HEADER_SIZE(h) (EXEC_BYTES_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_ENTRY_POINT(h) ((h)->header.a_entry)
+#define H_GET_STRING_SIZE(h) ((h)->string_table_size)
+#define H_GET_LINENO_SIZE(h) (0)
+
+#define H_GET_DYNAMIC(h) ((h)->header.a_info >> 31)
+#define H_GET_VERSION(h) (((h)->header.a_info >> 24) & 0x7f)
+#define H_GET_MACHTYPE(h) (((h)->header.a_info >> 16) & 0xff)
+#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))))
+
+#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))))
+
+#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))))
+
+#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_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) * 12)
+
+#define H_SET_ENTRY_POINT(h,v) ((h)->header.a_entry = (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) */
+ }
+
+object_headers;
+
+/* 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));
+
+#endif
+
+#define obj_symbol_new_hook(s) {;}
+
+#define EMIT_SECTION_SYMBOLS 0
+
+#define AOUT_STABS
+
+/* end of obj-aout.h */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 06:24:32 +0000