X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Fobj-elf.h;h=52a361a40d4341468449cc59954a85078471a54b;hb=79dec6b7baa243a4ada018a082491990adb6aec1;hp=bd4d58caa7da84dda60fdd79e604e908f4264328;hpb=d88cc85dbbd2dbd9b4cc0aa9bd0bd8dc53aa8006;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/obj-elf.h b/gas/config/obj-elf.h index bd4d58caa7..52a361a40d 100644 --- a/gas/config/obj-elf.h +++ b/gas/config/obj-elf.h @@ -1,11 +1,11 @@ /* ELF object file format. - Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. + Copyright (C) 1992-2019 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 3, or (at your option) any later version. GAS is distributed in the hope that it will be useful, @@ -15,9 +15,8 @@ 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. */ @@ -27,138 +26,230 @@ #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 +#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; - -/* 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 +#ifndef obj_begin #define obj_begin() elf_begin () -extern void elf_begin PARAMS ((void)); +#endif +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)) +#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); -#define obj_app_file elf_file_symbol -extern void elf_file_symbol PARAMS ((char *)); +/* 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 -extern void obj_elf_section PARAMS ((int)); -extern void obj_elf_previous PARAMS ((int)); -extern void obj_elf_version PARAMS ((int)); +#ifndef obj_app_file +#define obj_app_file elf_file_symbol +#endif +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, unsigned int, bfd_vma, int, const char *, + 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 -/* 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) - -/* Stabs go in a separate section. */ -#define SEPARATE_STAB_SECTIONS 1 +void elf_obj_read_begin_hook (void); +#ifndef obj_read_begin_hook +#define obj_read_begin_hook elf_obj_read_begin_hook +#endif -/* 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) +void elf_obj_symbol_new_hook (symbolS *); +#ifndef obj_symbol_new_hook +#define obj_symbol_new_hook elf_obj_symbol_new_hook +#endif -/* For now, always set ECOFF_DEBUGGING for an Alpha target. */ -#ifdef TC_ALPHA -#define ECOFF_DEBUGGING 1 +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 -/* For now, always set ECOFF_DEBUGGING for a MIPS target. */ -#ifdef TC_MIPS -#define ECOFF_DEBUGGING 1 +void elf_adjust_symtab (void); +#ifndef obj_adjust_symtab +#define obj_adjust_symtab elf_adjust_symtab #endif -#if ECOFF_DEBUGGING +#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. */ -/* 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; +/* 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 (segT); +#define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg) + +#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 +/* If OBJ_MAYBE_ELF then obj-multi.h will define obj_ecoff_set_ext. */ #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 */