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Change get_objfile_arch to a method on objfile

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This changes get_objfile_arch to be a new inline method,
objfile::arch.

To my surprise, this function came up while profiling DWARF psymbol
reading.  Making this change improved performance from 1.986 seconds
to 1.869 seconds.  Both measurements were done by taking the mean of
10 runs on a fixed copy of the gdb executable.

gdb/ChangeLog
2020-04-18  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (enter_line_range, scan_xcoff_symtab): Update.
	* value.c (value_fn_field): Update.
	* valops.c (find_function_in_inferior)
	(value_allocate_space_in_inferior): Update.
	* tui/tui-winsource.c (tui_update_source_windows_with_line):
	Update.
	* tui/tui-source.c (tui_source_window::set_contents): Update.
	* symtab.c (lookup_global_or_static_symbol)
	(find_function_start_sal_1, skip_prologue_sal)
	(print_msymbol_info, find_gnu_ifunc, symbol_arch): Update.
	* symmisc.c (dump_msymbols, dump_symtab_1)
	(maintenance_print_one_line_table): Update.
	* symfile.c (init_entry_point_info, section_is_mapped)
	(list_overlays_command, simple_read_overlay_table)
	(simple_overlay_update_1): Update.
	* stap-probe.c (handle_stap_probe): Update.
	* stabsread.c (dbx_init_float_type, define_symbol)
	(read_one_struct_field, read_enum_type, read_range_type): Update.
	* source.c (info_line_command): Update.
	* python/python.c (gdbpy_source_objfile_script)
	(gdbpy_execute_objfile_script): Update.
	* python/py-type.c (save_objfile_types): Update.
	* python/py-objfile.c (py_free_objfile): Update.
	* python/py-inferior.c (python_new_objfile): Update.
	* psymtab.c (psym_find_pc_sect_compunit_symtab, dump_psymtab)
	(dump_psymtab_addrmap_1, maintenance_info_psymtabs)
	(maintenance_check_psymtabs): Update.
	* printcmd.c (info_address_command): Update.
	* objfiles.h (struct objfile) <arch>: New method, from
	get_objfile_arch.
	(get_objfile_arch): Don't declare.
	* objfiles.c (get_objfile_arch): Remove.
	(filter_overlapping_sections): Update.
	* minsyms.c (msymbol_is_function): Update.
	* mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines)
	(output_nondebug_symbol): Update.
	* mdebugread.c (parse_symbol, basic_type, parse_partial_symbols)
	(mdebug_expand_psymtab): Update.
	* machoread.c (macho_add_oso_symfile): Update.
	* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap):
	Update.
	* linux-fork.c (checkpoint_command): Update.
	* linespec.c (convert_linespec_to_sals): Update.
	* jit.c (finalize_symtab): Update.
	* infrun.c (insert_exception_resume_from_probe): Update.
	* ia64-tdep.c (ia64_find_unwind_table): Update.
	* hppa-tdep.c (internalize_unwinds): Update.
	* gdbtypes.c (get_type_arch, init_float_type, objfile_type):
	Update.
	* gcore.c (call_target_sbrk): Update.
	* elfread.c (record_minimal_symbol, elf_symtab_read)
	(elf_rel_plt_read, elf_gnu_ifunc_record_cache)
	(elf_gnu_ifunc_resolve_by_got): Update.
	* dwarf2/read.c (create_addrmap_from_index)
	(create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab)
	(read_debug_names_from_section)
	(process_psymtab_comp_unit_reader, add_partial_symbol)
	(add_partial_subprogram, process_full_comp_unit)
	(read_file_scope, read_func_scope, read_lexical_block_scope)
	(read_call_site_scope, dwarf2_ranges_read)
	(dwarf2_record_block_ranges, dwarf2_add_field)
	(mark_common_block_symbol_computed, read_tag_pointer_type)
	(read_tag_string_type, dwarf2_init_float_type)
	(dwarf2_init_complex_target_type, read_base_type)
	(partial_die_info::read, partial_die_info::read)
	(read_attribute_value, dwarf_decode_lines_1, new_symbol)
	(dwarf2_fetch_die_loc_sect_off): Update.
	* dwarf2/loc.c (dwarf2_find_location_expression)
	(class dwarf_evaluate_loc_desc, rw_pieced_value)
	(dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval)
	(dwarf2_loc_desc_get_symbol_read_needs)
	(locexpr_describe_location_piece, locexpr_describe_location_1)
	(loclist_describe_location): Update.
	* dwarf2/index-write.c (write_debug_names): Update.
	* dwarf2/frame.c (dwarf2_build_frame_info): Update.
	* dtrace-probe.c (dtrace_process_dof): Update.
	* dbxread.c (read_dbx_symtab, dbx_end_psymtab)
	(process_one_symbol): Update.
	* ctfread.c (ctf_init_float_type, read_base_type): Update.
	* coffread.c (coff_symtab_read, enter_linenos, decode_base_type)
	(coff_read_enum_type): Update.
	* cli/cli-cmds.c (edit_command, list_command): Update.
	* buildsym.c (buildsym_compunit::finish_block_internal): Update.
	* breakpoint.c (create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint, get_sal_arch): Update.
	* block.c (block_gdbarch): Update.
	* annotate.c (annotate_source_line): Update.
This commit is contained in:
Tom Tromey
2020-04-18 08:35:04 -06:00
parent 18f9735354
commit 08feed99cb
47 changed files with 231 additions and 142 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
gdb/dwarf2/loc.c
View File

@ -318,7 +318,7 @@ dwarf2_find_location_expression (struct dwarf2_loclist_baton *baton,
size_t *locexpr_length, CORE_ADDR pc)
{
struct objfile *objfile = baton->per_cu->objfile ();
struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct gdbarch *gdbarch = objfile->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int addr_size = baton->per_cu->addr_size ();
int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd);
@ -729,7 +729,7 @@ class dwarf_evaluate_loc_desc : public dwarf_expr_context
(CORE_ADDR) 0);
scoped_restore save_arch = make_scoped_restore (&this->gdbarch);
this->gdbarch = get_objfile_arch (per_cu->objfile ());
this->gdbarch = per_cu->objfile ()->arch ();
scoped_restore save_addr_size = make_scoped_restore (&this->addr_size);
this->addr_size = per_cu->addr_size ();
scoped_restore save_offset = make_scoped_restore (&this->offset);
@ -1816,7 +1816,7 @@ rw_pieced_value (struct value *v, struct value *from)
}
struct objfile *objfile = c->per_cu->objfile ();
struct gdbarch *objfile_gdbarch = get_objfile_arch (objfile);
struct gdbarch *objfile_gdbarch = objfile->arch ();
ULONGEST stack_value_size_bits
= 8 * TYPE_LENGTH (value_type (p->v.value));
@ -2192,7 +2192,7 @@ dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
scoped_value_mark free_values;
ctx.gdbarch = get_objfile_arch (objfile);
ctx.gdbarch = objfile->arch ();
ctx.addr_size = per_cu->addr_size ();
ctx.ref_addr_size = per_cu->ref_addr_size ();
ctx.offset = per_cu->text_offset ();
@ -2315,7 +2315,7 @@ dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
size_t n = TYPE_LENGTH (value_type (value));
size_t len = TYPE_LENGTH (subobj_type);
size_t max = TYPE_LENGTH (type);
struct gdbarch *objfile_gdbarch = get_objfile_arch (objfile);
struct gdbarch *objfile_gdbarch = objfile->arch ();
if (subobj_byte_offset + len > max)
invalid_synthetic_pointer ();
@ -2409,7 +2409,7 @@ dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
objfile = dlbaton->per_cu->objfile ();
ctx.gdbarch = get_objfile_arch (objfile);
ctx.gdbarch = objfile->arch ();
ctx.addr_size = dlbaton->per_cu->addr_size ();
ctx.ref_addr_size = dlbaton->per_cu->ref_addr_size ();
ctx.offset = dlbaton->per_cu->text_offset ();
@ -2740,7 +2740,7 @@ dwarf2_loc_desc_get_symbol_read_needs (const gdb_byte *data, size_t size,
ctx.needs = SYMBOL_NEEDS_NONE;
ctx.per_cu = per_cu;
ctx.gdbarch = get_objfile_arch (objfile);
ctx.gdbarch = objfile->arch ();
ctx.addr_size = per_cu->addr_size ();
ctx.ref_addr_size = per_cu->ref_addr_size ();
ctx.offset = per_cu->text_offset ();
@ -3638,7 +3638,7 @@ locexpr_describe_location_piece (struct symbol *symbol, struct ui_file *stream,
const gdb_byte *data, const gdb_byte *end,
unsigned int addr_size)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct gdbarch *gdbarch = objfile->arch ();
size_t leb128_size;
if (data[0] >= DW_OP_reg0 && data[0] <= DW_OP_reg31)
@ -4234,7 +4234,7 @@ locexpr_describe_location_1 (struct symbol *symbol, CORE_ADDR addr,
{
fprintf_filtered (stream, _("a complex DWARF expression:\n"));
data = disassemble_dwarf_expression (stream,
get_objfile_arch (objfile),
objfile->arch (),
addr_size, offset_size, data,
data, end, 0,
dwarf_always_disassemble,
@ -4436,7 +4436,7 @@ loclist_describe_location (struct symbol *symbol, CORE_ADDR addr,
= (struct dwarf2_loclist_baton *) SYMBOL_LOCATION_BATON (symbol);
const gdb_byte *loc_ptr, *buf_end;
struct objfile *objfile = dlbaton->per_cu->objfile ();
struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct gdbarch *gdbarch = objfile->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int addr_size = dlbaton->per_cu->addr_size ();
int offset_size = dlbaton->per_cu->offset_size ();