[deliverable/binutils-gdb.git] / gas / config / obj-elf.h

/* ELF object file format.
   Copyright (C) 1992, 93, 94, 95, 96, 1997 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, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */


/* HP PA-RISC support was contributed by the Center for Software Science
   at the University of Utah.  */

#ifndef _OBJ_ELF_H
#define _OBJ_ELF_H

#define OBJ_ELF 1

#define OUTPUT_FLAVOR bfd_target_elf_flavour

#include <bfd.h>

#define BYTES_IN_WORD 4		/* for now */
#include "bfd/elf-bfd.h"

/* Additional information we keep for each symbol.  */

/* FIXME: For some reason, this structure is needed both here and in
   obj-multi.h.  */
#ifndef OBJ_SYMFIELD_TYPE
struct elf_obj_sy
{
  /* Use this to keep track of .size expressions that involve
     differences that we can't compute yet.  */
  expressionS *size;

  /* The name specified by the .symver directive.  */
  char *versioned_name;
};
#endif

#define OBJ_SYMFIELD_TYPE struct elf_obj_sy

/* Symbol fields used by the ELF back end.  */
#define ELF_TARGET_SYMBOL_FIELDS int local:1;

/* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead.  */
#define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS

#include "targ-cpu.h"

#ifndef FALSE
#define FALSE 0
#define TRUE  !FALSE
#endif

#define obj_begin() elf_begin ()
extern void elf_begin PARAMS ((void));

/* should be conditional on address size! */
#define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))

#define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
#define S_SET_SIZE(S,V) \
  (elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))

#define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
#define S_SET_ALIGN(S,V) \
  (elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))

#define S_GET_OTHER(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_other)
#define S_SET_OTHER(S,V) \
  (elf_symbol ((S)->bsym)->internal_elf_sym.st_other = (V))

extern asection *gdb_section;

#define obj_frob_file  elf_frob_file
extern void elf_frob_file PARAMS ((void));

#define obj_frob_file_after_relocs  elf_frob_file_after_relocs
extern void elf_frob_file_after_relocs PARAMS ((void));

#define obj_app_file elf_file_symbol
extern void elf_file_symbol PARAMS ((char *));

extern void obj_elf_section_change_hook PARAMS ((void));

extern void obj_elf_section PARAMS ((int));
extern void obj_elf_previous PARAMS ((int));
extern void obj_elf_version PARAMS ((int));

/* BFD wants to write the udata field, which is a no-no for the
   globally defined sections.  */
#define obj_sec_sym_ok_for_reloc(SEC)	((SEC)->owner != 0)

/* When setting one symbol equal to another, by default we probably
   want them to have the same "size", whatever it means in the current
   context.  */
#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC)			\
do								\
  {								\
    if ((SRC)->sy_obj.size)					\
      {								\
	if ((DEST)->sy_obj.size == NULL)			\
	  (DEST)->sy_obj.size =					\
	    (expressionS *) xmalloc (sizeof (expressionS));	\
	*(DEST)->sy_obj.size = *(SRC)->sy_obj.size;		\
      }								\
    else							\
      {								\
	if ((DEST)->sy_obj.size != NULL)			\
	  free ((DEST)->sy_obj.size);				\
	(DEST)->sy_obj.size = NULL;				\
      }								\
    S_SET_SIZE ((DEST), S_GET_SIZE (SRC));			\
    S_SET_OTHER ((DEST), S_GET_OTHER (SRC));			\
  }								\
while (0)

/* Stabs go in a separate section.  */
#define SEPARATE_STAB_SECTIONS 1

/* We need 12 bytes at the start of the section to hold some initial
   information.  */
extern void obj_elf_init_stab_section PARAMS ((segT));
#define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)

#ifdef TC_ALPHA
#define ECOFF_DEBUGGING alpha_flag_mdebug
extern int alpha_flag_mdebug;
#endif

/* For now, always set ECOFF_DEBUGGING for a MIPS target.  */
#ifdef TC_MIPS
#ifdef MIPS_STABS_ELF
#define ECOFF_DEBUGGING 0
#else
#define ECOFF_DEBUGGING 1
#endif /* MIPS_STABS_ELF */
#endif /* TC_MIPS */

#ifdef ECOFF_DEBUGGING
/* If we are generating ECOFF debugging information, we need some
   additional fields for each symbol.  */
#undef TARGET_SYMBOL_FIELDS
#define TARGET_SYMBOL_FIELDS \
  ELF_TARGET_SYMBOL_FIELDS \
  struct efdr *ecoff_file; \
  struct localsym *ecoff_symbol; \
  valueT ecoff_extern_size;

/* We smuggle stabs in ECOFF rather than using a separate section.
   The Irix linker can not handle a separate stabs section.  */

#undef  SEPARATE_STAB_SECTIONS
#define SEPARATE_STAB_SECTIONS (!ECOFF_DEBUGGING)

#undef  INIT_STAB_SECTION
#define INIT_STAB_SECTION(seg) \
  ((void)(ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0)))

#define OBJ_PROCESS_STAB(seg, what, string, type, other, desc)		\
  if (ECOFF_DEBUGGING)							\
    ecoff_stab ((seg), (what), (string), (type), (other), (desc))
#endif /* ECOFF_DEBUGGING */

extern void elf_frob_symbol PARAMS ((struct symbol *, int *));
#ifndef obj_frob_symbol
#define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
#endif

extern void elf_pop_insert PARAMS ((void));
#define obj_pop_insert()	elf_pop_insert()

#ifndef OBJ_MAYBE_ELF
#define obj_ecoff_set_ext elf_ecoff_set_ext
#ifdef ANSI_PROTOTYPES
struct ecoff_extr;
#endif
extern void elf_ecoff_set_ext PARAMS ((struct symbol *, struct ecoff_extr *));
#endif

#endif /* _OBJ_ELF_H */
Commit	Line	Data
252b5132 RH	1	/* ELF object file format.
	2	Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
	3
	4	This file is part of GAS, the GNU Assembler.
	5
	6	GAS is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 1, or (at your option)
	9	any later version.
	10
	11	GAS is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GAS; see the file COPYING. If not, write to the Free
	18	Software Foundation, 59 Temple Place - Suite 330, Boston, MA
	19	02111-1307, USA. */
	20
	21
	22	/* HP PA-RISC support was contributed by the Center for Software Science
	23	at the University of Utah. */
	24
	25	#ifndef _OBJ_ELF_H
	26	#define _OBJ_ELF_H
	27
	28	#define OBJ_ELF 1
	29
	30	#define OUTPUT_FLAVOR bfd_target_elf_flavour
	31
	32	#include <bfd.h>
	33
	34	#define BYTES_IN_WORD 4 /* for now */
	35	#include "bfd/elf-bfd.h"
	36
	37	/* Additional information we keep for each symbol. */
	38
	39	/* FIXME: For some reason, this structure is needed both here and in
	40	obj-multi.h. */
	41	#ifndef OBJ_SYMFIELD_TYPE
	42	struct elf_obj_sy
	43	{
	44	/* Use this to keep track of .size expressions that involve
	45	differences that we can't compute yet. */
	46	expressionS *size;
	47
	48	/* The name specified by the .symver directive. */
	49	char *versioned_name;
	50	};
	51	#endif
	52
	53	#define OBJ_SYMFIELD_TYPE struct elf_obj_sy
	54
	55	/* Symbol fields used by the ELF back end. */
	56	#define ELF_TARGET_SYMBOL_FIELDS int local:1;
	57
	58	/* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead. */
	59	#define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS
	60
	61	#include "targ-cpu.h"
	62
	63	#ifndef FALSE
	64	#define FALSE 0
65	#define TRUE !FALSE
66	#endif
67
68	#define obj_begin() elf_begin ()
69	extern void elf_begin PARAMS ((void));
70
71	/* should be conditional on address size! */
72	#define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
73
74	#define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
75	#define S_SET_SIZE(S,V) \
76	(elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))
77
78	#define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
79	#define S_SET_ALIGN(S,V) \
80	(elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))
81
82	#define S_GET_OTHER(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_other)
83	#define S_SET_OTHER(S,V) \
84	(elf_symbol ((S)->bsym)->internal_elf_sym.st_other = (V))
85
86	extern asection *gdb_section;
87
88	#define obj_frob_file elf_frob_file
89	extern void elf_frob_file PARAMS ((void));
90
91	#define obj_frob_file_after_relocs elf_frob_file_after_relocs
92	extern void elf_frob_file_after_relocs PARAMS ((void));
93
94	#define obj_app_file elf_file_symbol
95	extern void elf_file_symbol PARAMS ((char *));
96
97	extern void obj_elf_section_change_hook PARAMS ((void));
98
99	extern void obj_elf_section PARAMS ((int));
100	extern void obj_elf_previous PARAMS ((int));
101	extern void obj_elf_version PARAMS ((int));
102
103	/* BFD wants to write the udata field, which is a no-no for the
104	globally defined sections. */
105	#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
106
107	/* When setting one symbol equal to another, by default we probably
108	want them to have the same "size", whatever it means in the current
109	context. */
110	#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \
111	do \
112	{ \
113	if ((SRC)->sy_obj.size) \
114	{ \
115	if ((DEST)->sy_obj.size == NULL) \
116	(DEST)->sy_obj.size = \
117	(expressionS *) xmalloc (sizeof (expressionS)); \
118	(DEST)->sy_obj.size = (SRC)->sy_obj.size; \
119	} \
120	else \
121	{ \
122	if ((DEST)->sy_obj.size != NULL) \
123	free ((DEST)->sy_obj.size); \
124	(DEST)->sy_obj.size = NULL; \
125	} \
126	S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \
127	S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \
128	} \
129	while (0)
130
131	/* Stabs go in a separate section. */
132	#define SEPARATE_STAB_SECTIONS 1
133
134	/* We need 12 bytes at the start of the section to hold some initial
135	information. */
136	extern void obj_elf_init_stab_section PARAMS ((segT));
137	#define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
138
139	#ifdef TC_ALPHA
140	#define ECOFF_DEBUGGING alpha_flag_mdebug
141	extern int alpha_flag_mdebug;
142	#endif
143
144	/* For now, always set ECOFF_DEBUGGING for a MIPS target. */
145	#ifdef TC_MIPS
146	#ifdef MIPS_STABS_ELF
147	#define ECOFF_DEBUGGING 0
148	#else
149	#define ECOFF_DEBUGGING 1
150	#endif /* MIPS_STABS_ELF */
151	#endif /* TC_MIPS */
152
153	#ifdef ECOFF_DEBUGGING
154	/* If we are generating ECOFF debugging information, we need some
155	additional fields for each symbol. */
156	#undef TARGET_SYMBOL_FIELDS
157	#define TARGET_SYMBOL_FIELDS \
158	ELF_TARGET_SYMBOL_FIELDS \
159	struct efdr *ecoff_file; \
160	struct localsym *ecoff_symbol; \
161	valueT ecoff_extern_size;
162
163	/* We smuggle stabs in ECOFF rather than using a separate section.
164	The Irix linker can not handle a separate stabs section. */
165
166	#undef SEPARATE_STAB_SECTIONS
167	#define SEPARATE_STAB_SECTIONS (!ECOFF_DEBUGGING)
168
169	#undef INIT_STAB_SECTION
170	#define INIT_STAB_SECTION(seg) \
171	((void)(ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0)))
172
173	#define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \
174	if (ECOFF_DEBUGGING) \
175	ecoff_stab ((seg), (what), (string), (type), (other), (desc))
176	#endif /* ECOFF_DEBUGGING */
177
178	extern void elf_frob_symbol PARAMS ((struct symbol , int ));
179	#ifndef obj_frob_symbol
180	#define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
181	#endif
182
183	extern void elf_pop_insert PARAMS ((void));
184	#define obj_pop_insert() elf_pop_insert()
185
186	#ifndef OBJ_MAYBE_ELF
187	#define obj_ecoff_set_ext elf_ecoff_set_ext
188	#ifdef ANSI_PROTOTYPES
189	struct ecoff_extr;
190	#endif
191	extern void elf_ecoff_set_ext PARAMS ((struct symbol , struct ecoff_extr ));
192	#endif
193
194	#endif /* _OBJ_ELF_H */