gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / bfd / mach-o-target.c
index 76bed2e002d27921000849865dfdf5a643573720..1ff62d92b062be3589e04b6a9c3649a0a2dbf904 100644 (file)
@@ -1,12 +1,11 @@
 /* Mach-O support for BFD.
-   Copyright 1999, 2000, 2001, 2002, 2007
-   Free Software Foundation, Inc.
+   Copyright (C) 1999-2020 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
    This program 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 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software 
-   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+/* Define generic entry points here so that we don't need to duplicate the
+   defines in every target.  But define once as this file may be included
+   several times.  */
+#ifndef MACH_O_TARGET_COMMON_DEFINED
+#define MACH_O_TARGET_COMMON_DEFINED
+
+#define bfd_mach_o_bfd_free_cached_info                      _bfd_generic_bfd_free_cached_info
+#define bfd_mach_o_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
+#define bfd_mach_o_bfd_print_private_bfd_data        bfd_mach_o_bfd_print_private_bfd_data
+#define bfd_mach_o_bfd_is_target_special_symbol              _bfd_bool_bfd_asymbol_false
+#define bfd_mach_o_bfd_is_local_label_name           bfd_generic_is_local_label_name
+#define bfd_mach_o_get_lineno                        _bfd_nosymbols_get_lineno
+#define bfd_mach_o_find_inliner_info                 _bfd_nosymbols_find_inliner_info
+#define bfd_mach_o_get_symbol_version_string         _bfd_nosymbols_get_symbol_version_string
+#define bfd_mach_o_bfd_make_debug_symbol             _bfd_nosymbols_bfd_make_debug_symbol
+#define bfd_mach_o_read_minisymbols                  _bfd_generic_read_minisymbols
+#define bfd_mach_o_minisymbol_to_symbol                      _bfd_generic_minisymbol_to_symbol
+#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
+#define bfd_mach_o_bfd_relax_section                 bfd_generic_relax_section
+#define bfd_mach_o_bfd_link_hash_table_create        _bfd_generic_link_hash_table_create
+#define bfd_mach_o_bfd_link_add_symbols                      _bfd_generic_link_add_symbols
+#define bfd_mach_o_bfd_link_just_syms                _bfd_generic_link_just_syms
+#define bfd_mach_o_bfd_copy_link_hash_symbol_type \
+  _bfd_generic_copy_link_hash_symbol_type
+#define bfd_mach_o_bfd_final_link                    _bfd_generic_final_link
+#define bfd_mach_o_bfd_link_split_section            _bfd_generic_link_split_section
+#define bfd_mach_o_bfd_link_check_relocs             _bfd_generic_link_check_relocs
+#define bfd_mach_o_bfd_merge_private_bfd_data        _bfd_generic_bfd_merge_private_bfd_data
+#define bfd_mach_o_bfd_set_private_flags             bfd_mach_o_bfd_set_private_flags
+#define bfd_mach_o_get_section_contents                      _bfd_generic_get_section_contents
+#define bfd_mach_o_bfd_gc_sections                   bfd_generic_gc_sections
+#define bfd_mach_o_bfd_lookup_section_flags          bfd_generic_lookup_section_flags
+#define bfd_mach_o_bfd_merge_sections                bfd_generic_merge_sections
+#define bfd_mach_o_bfd_is_group_section                      bfd_generic_is_group_section
+#define bfd_mach_o_bfd_group_name                    bfd_generic_group_name
+#define bfd_mach_o_bfd_discard_group                 bfd_generic_discard_group
+#define bfd_mach_o_section_already_linked            _bfd_generic_section_already_linked
+#define bfd_mach_o_bfd_define_common_symbol          bfd_generic_define_common_symbol
+#define bfd_mach_o_bfd_link_hide_symbol                      _bfd_generic_link_hide_symbol
+#define bfd_mach_o_bfd_define_start_stop             bfd_generic_define_start_stop
+#define bfd_mach_o_bfd_copy_private_bfd_data         _bfd_generic_bfd_copy_private_bfd_data
+#define bfd_mach_o_core_file_matches_executable_p     generic_core_file_matches_executable_p
+#define bfd_mach_o_core_file_pid                     _bfd_nocore_core_file_pid
+#define bfd_mach_o_set_reloc                         _bfd_generic_set_reloc
+
+#define bfd_mach_o_get_dynamic_symtab_upper_bound     bfd_mach_o_get_symtab_upper_bound
+#define bfd_mach_o_canonicalize_dynamic_symtab       bfd_mach_o_canonicalize_symtab
+
+/* For Mach-O special archives.  */
+#define bfd_mach_o_read_ar_hdr                   _bfd_noarchive_read_ar_hdr
+#define bfd_mach_o_write_ar_hdr                          _bfd_noarchive_write_ar_hdr
+#define bfd_mach_o_slurp_armap                   _bfd_noarchive_slurp_armap
+#define bfd_mach_o_slurp_extended_name_table     _bfd_noarchive_slurp_extended_name_table
+#define bfd_mach_o_construct_extended_name_table  _bfd_noarchive_construct_extended_name_table
+#define bfd_mach_o_truncate_arname               _bfd_noarchive_truncate_arname
+#define bfd_mach_o_write_armap                   _bfd_noarchive_write_armap
+#define bfd_mach_o_get_elt_at_index              _bfd_noarchive_get_elt_at_index
+#define bfd_mach_o_update_armap_timestamp        _bfd_noarchive_update_armap_timestamp
+
+#define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
+
+#endif /* MACH_O_TARGET_COMMON_DEFINED */
 
 #ifndef TARGET_NAME
 #error TARGET_NAME must be defined
 #error TARGET_STRING must be defined
 #endif /* TARGET_STRING */
 
+#ifndef TARGET_ARCHITECTURE
+#error TARGET_ARCHITECTURE must be defined
+#endif /* TARGET_ARCHITECTURE */
+
 #ifndef TARGET_BIG_ENDIAN
 #error TARGET_BIG_ENDIAN must be defined
 #endif /* TARGET_BIG_ENDIAN */
 #error TARGET_ARCHIVE must be defined
 #endif /* TARGET_ARCHIVE */
 
-#if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
-#error Mach-O fat files must always be big-endian.
-#endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
+#ifndef TARGET_PAGESIZE
+#error TARGET_PAGESIZE must be defined
+#endif
+
+static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
+{
+  TARGET_ARCHITECTURE,
+  TARGET_PAGESIZE,
+  bfd_mach_o_canonicalize_one_reloc,
+  bfd_mach_o_swap_reloc_out,
+  bfd_mach_o_print_thread,
+  bfd_mach_o_tgt_seg_table,
+  bfd_mach_o_section_type_valid_for_tgt
+};
 
 const bfd_target TARGET_NAME =
 {
@@ -57,6 +135,7 @@ const bfd_target TARGET_NAME =
   '_',                         /* symbol_leading_char.  */
   ' ',                         /* ar_pad_char.  */
   16,                          /* ar_max_namelen.  */
+  TARGET_PRIORITY,     /* match priority.  */
 
 #if TARGET_BIG_ENDIAN
   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
@@ -83,35 +162,41 @@ const bfd_target TARGET_NAME =
 #else
     _bfd_dummy_target,
     bfd_mach_o_object_p,
-    _bfd_dummy_target,
+    bfd_generic_archive_p,
     bfd_mach_o_core_p
 #endif
   },
   {                            /* bfd_set_format.  */
-    bfd_false,
+    _bfd_bool_bfd_false_error,
     bfd_mach_o_mkobject,
-    bfd_false,
+    _bfd_generic_mkarchive,
     bfd_mach_o_mkobject,
   },
   {                            /* bfd_write_contents.  */
-    bfd_false,
+    _bfd_bool_bfd_false_error,
     bfd_mach_o_write_contents,
-    bfd_false,
+    _bfd_write_archive_contents,
     bfd_mach_o_write_contents,
   },
 
   BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
   BFD_JUMP_TABLE_COPY (bfd_mach_o),
   BFD_JUMP_TABLE_CORE (bfd_mach_o),
+#if TARGET_ARCHIVE
   BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
+#else
+  BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
+#endif
   BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
-  BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
+  BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
   BFD_JUMP_TABLE_WRITE (bfd_mach_o),
   BFD_JUMP_TABLE_LINK (bfd_mach_o),
-  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+  BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
 
+  /* Alternative endian target.  */
   NULL,
 
-  NULL
+  /* Back-end data.  */
+  &TARGET_NAME_BACKEND
 };
 
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