/* ELF object file format.
- Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2006 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)
+ 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,
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. */
-
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* HP PA-RISC support was contributed by the Center for Software Science
at the University of Utah. */
#define OBJ_ELF 1
-#define OUTPUT_FLAVOR bfd_target_elf_flavour
+/* Note that all macros in this file should be wrapped in #ifndef, for
+ sake of obj-multi.h which includes this file. */
-#include <bfd.h>
+#ifndef OUTPUT_FLAVOR
+#define OUTPUT_FLAVOR bfd_target_elf_flavour
+#endif
#define BYTES_IN_WORD 4 /* for now */
#include "bfd/elf-bfd.h"
-/* Additional information we keep for each symbol. */
+#include "targ-cpu.h"
+
+#ifdef TC_ALPHA
+#define ECOFF_DEBUGGING (alpha_flag_mdebug > 0)
+extern int alpha_flag_mdebug;
+#endif
+
+/* For now, always set ECOFF_DEBUGGING for a MIPS target. */
+#ifdef TC_MIPS
+#define ECOFF_DEBUGGING mips_flag_mdebug
+extern int mips_flag_mdebug;
+#endif /* TC_MIPS */
+
+#ifdef OBJ_MAYBE_ECOFF
+#ifndef ECOFF_DEBUGGING
+#define ECOFF_DEBUGGING 1
+#endif
+#endif
+/* Additional information we keep for each symbol. */
struct elf_obj_sy
{
+ /* Whether the symbol has been marked as local. */
+ int local;
+
/* 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;
+
+#ifdef ECOFF_DEBUGGING
+ /* If we are generating ECOFF debugging information, we need some
+ additional fields for each symbol. */
+ struct efdr *ecoff_file;
+ struct localsym *ecoff_symbol;
+ valueT ecoff_extern_size;
+#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;
+#define ELF_TARGET_SYMBOL_FIELDS unsigned int local:1;
/* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead. */
+#ifndef TARGET_SYMBOL_FIELDS
#define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS
-
-#include "targ-cpu.h"
+#endif
#ifndef FALSE
#define FALSE 0
#define TRUE !FALSE
#endif
+#ifndef obj_begin
#define obj_begin() elf_begin ()
-extern void elf_begin PARAMS ((void));
+#endif
+extern void elf_begin (void);
/* should be conditional on address size! */
-#define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
+#define elf_symbol(asymbol) ((elf_symbol_type *) (&(asymbol)->the_bfd))
-#define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
+#ifndef S_GET_SIZE
+#define S_GET_SIZE(S) \
+ (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size)
+#endif
+#ifndef S_SET_SIZE
#define S_SET_SIZE(S,V) \
- (elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))
+ (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size = (V))
+#endif
-#define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
+#ifndef S_GET_ALIGN
+#define S_GET_ALIGN(S) \
+ (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value)
+#endif
+#ifndef S_SET_ALIGN
#define S_SET_ALIGN(S,V) \
- (elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))
+ (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V))
+#endif
-#define S_GET_OTHER(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_other)
+int elf_s_get_other (symbolS *);
+#ifndef S_GET_OTHER
+#define S_GET_OTHER(S) (elf_s_get_other (S))
+#endif
+#ifndef S_SET_OTHER
#define S_SET_OTHER(S,V) \
- (elf_symbol ((S)->bsym)->internal_elf_sym.st_other = (V))
+ (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other = (V))
+#endif
extern asection *gdb_section;
+#ifndef obj_frob_file
#define obj_frob_file elf_frob_file
-extern void elf_frob_file PARAMS ((void));
+#endif
+extern void elf_frob_file (void);
+
+#ifndef obj_frob_file_before_adjust
+#define obj_frob_file_before_adjust elf_frob_file_before_adjust
+#endif
+extern void elf_frob_file_before_adjust (void);
+#ifndef obj_frob_file_after_relocs
#define obj_frob_file_after_relocs elf_frob_file_after_relocs
-extern void elf_frob_file_after_relocs PARAMS ((void));
+#endif
+extern void elf_frob_file_after_relocs (void);
+/* If the target doesn't have special processing for labels, take care of
+ dwarf2 output at the object file level. */
+#ifndef tc_frob_label
+#include "dwarf2dbg.h"
+#define obj_frob_label dwarf2_emit_label
+#endif
+
+#ifndef obj_app_file
#define obj_app_file elf_file_symbol
-extern void elf_file_symbol PARAMS ((char *));
+#endif
+extern void elf_file_symbol (const char *, int);
+
+extern void obj_elf_section_change_hook (void);
-extern void obj_elf_section PARAMS ((int));
-extern void obj_elf_previous PARAMS ((int));
-extern void obj_elf_version PARAMS ((int));
+extern void obj_elf_section (int);
+extern void obj_elf_previous (int);
+extern void obj_elf_version (int);
+extern void obj_elf_common (int);
+extern void obj_elf_data (int);
+extern void obj_elf_text (int);
+extern void obj_elf_change_section
+ (const char *, int, int, int, const char *, int, int);
+extern struct fix *obj_elf_vtable_inherit (int);
+extern struct fix *obj_elf_vtable_entry (int);
/* BFD wants to write the udata field, which is a no-no for the
- globally defined sections. */
+ predefined section symbols in bfd/section.c. They are read-only. */
+#ifndef obj_sec_sym_ok_for_reloc
#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
+#endif
+
+void elf_obj_read_begin_hook (void);
+#ifndef obj_read_begin_hook
+#define obj_read_begin_hook elf_obj_read_begin_hook
+#endif
+
+void elf_obj_symbol_new_hook (symbolS *);
+#ifndef obj_symbol_new_hook
+#define obj_symbol_new_hook elf_obj_symbol_new_hook
+#endif
+
+void elf_copy_symbol_attributes (symbolS *, symbolS *);
+#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
+#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
+ (elf_copy_symbol_attributes (DEST, SRC))
+#endif
-/* 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 \
- { \
- S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \
- S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \
- } \
-while (0)
+#ifndef SEPARATE_STAB_SECTIONS
+/* Avoid ifndef each separate macro setting by wrapping the whole of the
+ stab group on the assumption that whoever sets SEPARATE_STAB_SECTIONS
+ caters to ECOFF_DEBUGGING and the right setting of INIT_STAB_SECTIONS
+ and OBJ_PROCESS_STAB too, without needing the tweaks below. */
/* 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));
+extern void obj_elf_init_stab_section (segT);
#define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
-/* For now, always set ECOFF_DEBUGGING for an Alpha target. */
-#ifdef TC_ALPHA
-#define ECOFF_DEBUGGING 1
-#endif
-
-/* For now, always set ECOFF_DEBUGGING for a MIPS target. */
-#ifdef TC_MIPS
-#define ECOFF_DEBUGGING 1
-#endif
-
-#if 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;
-
+#ifdef ECOFF_DEBUGGING
/* 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
-#undef INIT_STAB_SECTION
-#define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \
- ecoff_stab ((seg), (what), (string), (type), (other), (desc))
-#define OBJ_GENERATE_ASM_LINENO(filename, lineno) \
- ecoff_generate_asm_lineno ((filename), (lineno))
+#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)))
+#undef OBJ_PROCESS_STAB
+#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 *));
+#endif /* SEPARATE_STAB_SECTIONS not defined. */
+
+extern void elf_frob_symbol (symbolS *, int *);
+#ifndef obj_frob_symbol
#define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
+#endif
-extern void elf_pop_insert PARAMS ((void));
+extern void elf_pop_insert (void);
+#ifndef obj_pop_insert
#define obj_pop_insert() elf_pop_insert()
+#endif
#ifndef OBJ_MAYBE_ELF
#define obj_ecoff_set_ext elf_ecoff_set_ext
-extern void elf_ecoff_set_ext ();
+struct ecoff_extr;
+extern void elf_ecoff_set_ext (symbolS *, struct ecoff_extr *);
#endif
+extern asection *elf_com_section_ptr;
+extern symbolS * elf_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP,
+ addressT size);
#endif /* _OBJ_ELF_H */
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