/* ELF object file format.
- Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, 2000
- Free Software Foundation, Inc.
+ Copyright (C) 1992-2021 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)
+ the Free Software Foundation; either version 3, 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 OUTPUT_FLAVOR bfd_target_elf_flavour
#endif
-#include "bfd.h"
-
#define BYTES_IN_WORD 4 /* for now */
#include "bfd/elf-bfd.h"
/* 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 */
+#define ECOFF_DEBUGGING mips_flag_mdebug
+extern int mips_flag_mdebug;
#endif /* TC_MIPS */
#ifdef OBJ_MAYBE_ECOFF
#endif
#endif
+enum elf_visibility
+{
+ visibility_unchanged = 0,
+ visibility_local,
+ visibility_hidden,
+ visibility_remove
+};
+
+struct elf_versioned_name_list
+{
+ char *name;
+ struct elf_versioned_name_list *next;
+};
+
/* Additional information we keep for each symbol. */
struct elf_obj_sy
{
/* Whether the symbol has been marked as local. */
- int local;
+ unsigned int local : 1;
+
+ /* Whether the symbol has been marked for rename with @@@. */
+ unsigned int rename : 1;
+
+ /* Whether the symbol has a bad version name. */
+ unsigned int bad_version : 1;
+
+ /* Whether visibility of the symbol should be changed. */
+ ENUM_BITFIELD (elf_visibility) visibility : 2;
/* 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;
+ /* The list of names specified by the .symver directive. */
+ struct elf_versioned_name_list *versioned_name;
#ifdef ECOFF_DEBUGGING
/* If we are generating ECOFF debugging information, we need some
#endif
};
+/* Match section group name, the sh_info field and the section_id
+ field. */
+struct elf_section_match
+{
+ const char * group_name;
+ const char * linked_to_symbol_name;
+ unsigned int section_id;
+ unsigned int sh_info; /* ELF section information. */
+ bfd_vma sh_flags; /* ELF section flags. */
+ flagword flags;
+};
+
#define OBJ_SYMFIELD_TYPE struct elf_obj_sy
#ifndef FALSE
#ifndef obj_begin
#define obj_begin() elf_begin ()
#endif
-extern void elf_begin PARAMS ((void));
+extern void elf_begin (void);
+
+#ifndef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX '.'
+#endif
/* should be conditional on address size! */
#define elf_symbol(asymbol) ((elf_symbol_type *) (&(asymbol)->the_bfd))
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V))
#endif
-int elf_s_get_other PARAMS ((symbolS *));
+int elf_s_get_other (symbolS *);
#ifndef S_GET_OTHER
#define S_GET_OTHER(S) (elf_s_get_other (S))
#endif
#ifndef obj_frob_file
#define obj_frob_file elf_frob_file
#endif
-extern void elf_frob_file PARAMS ((void));
+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 PARAMS ((void));
+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
#endif
-extern void elf_frob_file_after_relocs PARAMS ((void));
+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
#endif
-extern void elf_file_symbol PARAMS ((const 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));
-extern void obj_elf_common PARAMS ((int));
-extern void obj_elf_data PARAMS ((int));
-extern void obj_elf_text PARAMS ((int));
-extern struct fix *obj_elf_vtable_inherit PARAMS ((int));
-extern struct fix *obj_elf_vtable_entry PARAMS ((int));
+extern void elf_file_symbol (const char *, int);
+
+extern void obj_elf_section_change_hook (void);
+
+extern void obj_elf_section (int);
+extern const char * obj_elf_section_name (void);
+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 *, unsigned int, bfd_vma, int, struct elf_section_match *,
+ int, int);
+extern void obj_elf_vtable_inherit (int);
+extern void obj_elf_vtable_entry (int);
+extern struct fix * obj_elf_get_vtable_inherit (void);
+extern struct fix * obj_elf_get_vtable_entry (void);
+extern bfd_boolean obj_elf_seen_attribute
+ (int, unsigned int);
+extern int obj_elf_vendor_attribute (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 PARAMS ((void));
+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 PARAMS ((symbolS *));
+void elf_obj_symbol_new_hook (symbolS *);
#ifndef obj_symbol_new_hook
#define obj_symbol_new_hook elf_obj_symbol_new_hook
#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. */
+void elf_obj_symbol_clone_hook (symbolS *, symbolS *);
+#ifndef obj_symbol_clone_hook
+#define obj_symbol_clone_hook elf_obj_symbol_clone_hook
+#endif
+
+void elf_copy_symbol_attributes (symbolS *, symbolS *);
#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
-#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \
-do \
- { \
- struct elf_obj_sy *srcelf = symbol_get_obj (SRC); \
- struct elf_obj_sy *destelf = symbol_get_obj (DEST); \
- if (srcelf->size) \
- { \
- if (destelf->size == NULL) \
- destelf->size = \
- (expressionS *) xmalloc (sizeof (expressionS)); \
- *destelf->size = *srcelf->size; \
- } \
- else \
- { \
- if (destelf->size != NULL) \
- free (destelf->size); \
- destelf->size = NULL; \
- } \
- S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \
- S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \
- } \
-while (0)
+#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
+ (elf_copy_symbol_attributes (DEST, SRC))
+#endif
+
+void elf_adjust_symtab (void);
+#ifndef obj_adjust_symtab
+#define obj_adjust_symtab elf_adjust_symtab
#endif
#ifndef SEPARATE_STAB_SECTIONS
/* 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)
#ifdef ECOFF_DEBUGGING
#endif /* SEPARATE_STAB_SECTIONS not defined. */
-extern void elf_frob_symbol PARAMS ((symbolS *, int *));
+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
+/* If OBJ_MAYBE_ELF then obj-multi.h will define obj_ecoff_set_ext. */
#define obj_ecoff_set_ext elf_ecoff_set_ext
-#ifdef ANSI_PROTOTYPES
struct ecoff_extr;
+extern void elf_ecoff_set_ext (symbolS *, struct ecoff_extr *);
#endif
-extern void elf_ecoff_set_ext PARAMS ((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 */
projects / thirdparty / binutils-gdb.git / blobdiff