gdb

	* breakpoint.c (save_cmdlist): No longer static.
	* gdbcmd.h (save_cmdlist): Declare.
	* symfile.c (symbol_file_add_with_addrs_or_offsets): Set
	OBJF_READNOW on objfile if readnow_symbol_files.
	* elfread.c (elf_symfile_read): Use dwarf2_initialize_objfile.
	(elf_sym_fns_gdb_index): New global.
	* dwarf2read.c: Include exceptions.h.
	(offset_type): New.
	(struct mapped_index): New.
	(dwarf2_per_cu_data_ptr): New typedef.
	(struct dwarf2_per_objfile) <using_index, index_table, gdb_index>:
	New fields.
	(GDB_INDEX_SECTION): New define.
	(struct dwarf2_per_cu_quick_data): New.
	(struct dwarf2_per_cu_data) <objfile>: New field.
	<psymtab>: Removed.
	<v>: New field.
	(byte_swap): New function.
	(MAYBE_SWAP): New macro.
	(INDEX_SUFFIX): New macro.
	(dw2_do_instantiate_symtab): New function.
	(dw2_instantiate_symtab): Likewise.
	(create_cus_from_index): Likewise.
	(create_addrmap_from_index): Likewise.
	(mapped_index_string_hash): Likewise.
	(find_slot_in_mapped_hash): Likewise.
	(dwarf2_read_index): Likewise.
	(dw2_setup): Likewise.
	(dw2_require_line_header): Likewise.
	(dw2_require_full_path): Likewise.
	(dw2_find_last_source_symtab): Likewise.
	(dw2_forget_cached_source_info): Likewise.
	(dw2_lookup_symtab): Likewise.
	(dw2_lookup_symbol): Likewise.
	(dw2_do_expand_symtabs_matching): Likewise.
	(dw2_pre_expand_symtabs_matching): Likewise.
	(dw2_print_stats): Likewise.
	(dw2_dump): Likewise.
	(dw2_relocate): Likewise.
	(dw2_expand_symtabs_for_function): Likewise.
	(dw2_expand_all_symtabs): Likewise.
	(dw2_expand_symtabs_with_filename): Likewise.
	(dw2_find_symbol_file): Likewise.
	(dw2_map_ada_symtabs): Likewise.
	(dw2_expand_symtabs_matching): Likewise.
	(dw2_find_pc_sect_symtab): Likewise.
	(dw2_map_symbol_names): Likewise.
	(dw2_map_symbol_filenames): Likewise.
	(dw2_has_symbols): Likewise.
	(dwarf2_gdb_index_functions): New global.
	(dwarf2_initialize_objfile): New function.
	(process_psymtab_comp_unit): Update.
	(add_partial_subprogram): Likewise.
	(dwarf2_psymtab_to_symtab): Likewise.
	(psymtab_to_symtab_1): Use dw2_do_instantiate_symtab.
	(process_full_comp_unit): Update.
	(find_file_and_directory): New function.
	(read_file_scope): Use find_file_and_directory.
	(dwarf2_per_cu_objfile): Update.
	(dwarf2_per_cu_addr_size): Update.
	(dwarf2_per_cu_offset_size): Update.
	(dwarf2_free_objfile): Free the index, if needed.
	(dwarf2_per_objfile_free): Unmap the index, if needed.
	(struct strtab_entry): New.
	(hash_strtab_entry): New function.
	(eq_strtab_entry): Likewise.
	(create_strtab): Likewise.
	(add_string): Likewise.
	(struct symtab_index_entry): New.
	(struct mapped_symtab): New.
	(hash_symtab_entry): New function.
	(eq_symtab_entry): Likewise.
	(delete_symtab_entry): Likewise.
	(create_index_table): Likewise.
	(create_mapped_symtab): Likewise.
	(cleanup_mapped_symtab): Likewise.
	(find_slot): Likewise.
	(hash_expand): Likewise.
	(add_index_entry): Likewise.
	(add_indices_to_cpool): Likewise.
	(write_hash_table): Likewise.
	(add_address_entry): Likewise.
	(write_psymbols): Likewise.
	(write_obstack): Likewise.
	(unlink_if_set): Likewise.
	(write_psymtabs_to_index): Likewise.
	(save_gdb_index_command): Likewise.
	(_initialize_dwarf2_read): Install "save gdb-index"
	command.
	(create_all_comp_units): Initialize 'objfile' field of CU.
	(dwarf2_locate_sections): Check for .gdb_index.
	* psymtab.h (dwarf2_gdb_index_functions): Declare.
	* symfile.h (dwarf2_initialize_objfile): Declare.
gdb/doc
	* gdb.texinfo (Index Files): New node.

1 files changed, 24 insertions, 5 deletions

diff --git a/gdb/elfread.c b/gdb/elfread.c
index 8c00938..ae92ff6 100644
--- a/gdb/elfread.c
+++ b/gdb/elfread.c
@@ -40,6 +40,9 @@
 
 extern void _initialize_elfread (void);
 
+/* Forward declaration.  */
+static struct sym_fns elf_sym_fns_gdb_index;
+
 /* The struct elfinfo is available only during ELF symbol table and
    psymtab reading.  It is destroyed at the completion of psymtab-reading.
    It's local to elf_symfile_read.  */
@@ -869,11 +872,9 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
 				str_sect->filepos,
 				bfd_section_size (abfd, str_sect));
     }
-  if (dwarf2_has_info (objfile))
-    {
-      /* DWARF 2 sections */
-      dwarf2_build_psymtabs (objfile);
-    }
+
+  if (dwarf2_has_info (objfile) && dwarf2_initialize_objfile (objfile))
+    objfile->sf = &elf_sym_fns_gdb_index;
 
   /* If the file has its own symbol tables it has no separate debug info.
      `.dynsym'/`.symtab' go to MSYMBOLS, `.debug_info' goes to SYMTABS/PSYMTABS.
@@ -1049,6 +1050,24 @@ static struct sym_fns elf_sym_fns =
   NULL				/* next: pointer to next struct sym_fns */
 };
 
+/* The same as elf_sym_fns, but not registered and uses the
+   DWARF-specific GNU index rather than psymtab.  */
+static struct sym_fns elf_sym_fns_gdb_index =
+{
+  bfd_target_elf_flavour,
+  elf_new_init,			/* sym_new_init: init anything gbl to entire symab */
+  elf_symfile_init,		/* sym_init: read initial info, setup for sym_red() */
+  elf_symfile_read,		/* sym_read: read a symbol file into symtab */
+  elf_symfile_finish,		/* sym_finish: finished with file, cleanup */
+  default_symfile_offsets,	/* sym_offsets:  Translate ext. to int. relocatin */
+  elf_symfile_segments,		/* sym_segments: Get segment information from
+				   a file.  */
+  NULL,                         /* sym_read_linetable */
+  default_symfile_relocate,	/* sym_relocate: Relocate a debug section.  */
+  &dwarf2_gdb_index_functions,
+  NULL				/* next: pointer to next struct sym_fns */
+};
+
 void
 _initialize_elfread (void)
 {