2005-07-12 15:06:54 +02:00
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/* DWARF 2 location expression support for GDB.
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2014-01-01 04:54:24 +01:00
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Copyright (C) 2003-2014 Free Software Foundation, Inc.
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Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
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Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
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#if !defined (DWARF2LOC_H)
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#define DWARF2LOC_H
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gdb/
Code cleanupp: Use cu_offset and sect_offset compile time type checking.
* dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op)
(ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and
sect_offset.
* dwarf2expr.h (cu_offset, sect_offset): New types.
(struct dwarf_expr_context_funcs) <dwarf_call>
(struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and
sect_offset.
(struct dwarf_expr_context) <len>: Improve the comment.
(struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use
cu_offset and sect_offset.
* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call)
(dwarf_expr_get_base_type, needs_frame_dwarf_call)
(dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise.
* dwarf2loc.h: Include dwarf2expr.h.
(dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset
and sect_offset.
* dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>:
Improve the comment.
(struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data)
(struct signatured_type, struct line_header, struct partial_die_info)
(struct die_info, find_partial_die, dwarf2_get_ref_die_offset)
(lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit)
(get_die_type_at_offset, create_cus_from_index)
(create_signatured_type_table_from_index, dw2_get_file_names)
(offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head)
(read_and_check_comp_unit_head, read_and_check_type_unit_head)
(create_debug_types_hash_table, process_psymtab_comp_unit)
(load_partial_comp_unit, create_all_comp_units)
(partial_die_parent_scope, partial_die_full_name, skip_one_die)
(load_full_comp_unit, dwarf2_physname, read_import_statement)
(inherit_abstract_dies, read_func_scope, read_call_site_scope)
(dwarf2_add_member_fn, process_enumeration_scope, read_module_type)
(read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs)
(load_partial_dies, read_partial_die, find_partial_die_in_comp_unit)
(find_partial_die, read_attribute_value, lookup_die_type)
(dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset.
(is_ref_attr): New function comment.
(dwarf2_get_ref_die_offset): New function comment, new variable retval.
Use cu_offset and sect_offset.
(follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block)
(dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset)
(load_full_type_unit, read_signatured_type, per_cu_header_read_in)
(dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type)
(offset_and_type_hash, offset_and_type_eq, set_die_type)
(get_die_type_at_offset, partial_die_hash, partial_die_eq)
(write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and
sect_offset.
2012-03-19 20:59:19 +01:00
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#include "dwarf2expr.h"
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2009-06-04 14:28:39 +02:00
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struct symbol_computed_ops;
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2008-03-18 20:40:47 +01:00
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struct objfile;
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struct dwarf2_per_cu_data;
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2010-11-29 22:18:16 +01:00
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struct dwarf2_loclist_baton;
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2011-02-17 17:20:44 +01:00
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struct agent_expr;
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struct axs_value;
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2004-01-26 21:36:32 +01:00
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Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
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/* This header is private to the DWARF-2 reader. It is shared between
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dwarf2read.c and dwarf2loc.c. */
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gdb/
Implement basic support for DW_TAG_GNU_call_site.
* block.c: Include gdbtypes.h and exceptions.h.
(call_site_for_pc): New function.
* block.h (call_site_for_pc): New declaration.
* defs.h: Include hashtab.h.
(make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New
declarations.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install
ctx_no_push_dwarf_reg_entry_value.
* dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL.
(dwarf_block_to_dwarf_reg): New function.
(execute_stack_op) <DW_OP_GNU_entry_value>: Implement it.
(ctx_no_push_dwarf_reg_entry_value): New function.
* dwarf2expr.h (struct dwarf_expr_context_funcs): New field
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New
declarations.
* dwarf2loc.c: Include gdbcmd.h.
(dwarf_expr_ctx_funcs): New forward declaration.
(entry_values_debug, show_entry_values_debug, call_site_to_target_addr)
(dwarf_expr_reg_to_entry_parameter)
(dwarf_expr_push_dwarf_reg_entry_value): New.
(dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value.
(dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR.
(needs_dwarf_reg_entry_value): New function.
(needs_frame_ctx_funcs): Install it.
(_initialize_dwarf2loc): New function.
* dwarf2loc.h (entry_values_debug): New declaration.
* dwarf2read.c (struct dwarf2_cu): New field call_site_htab.
(read_call_site_scope): New forward declaration.
(process_full_comp_unit): Copy call_site_htab.
(process_die): Support DW_TAG_GNU_call_site.
(read_call_site_scope): New function.
(dwarf2_get_pc_bounds): Support NULL HIGHPC.
(dwarf_tag_name): Support DW_TAG_GNU_call_site.
(cleanup_htab): Delete.
(write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it.
* exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR.
* gdb-gdb.py (StructMainTypePrettyPrinter): Support
FIELD_LOC_KIND_DWARF_BLOCK.
* gdbtypes.h (enum field_loc_kind): New entry
FIELD_LOC_KIND_DWARF_BLOCK.
(struct main_type): New loc entry dwarf_block.
(struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK)
(TYPE_FIELD_DWARF_BLOCK): New.
* python/py-type.c: Include dwarf2loc.h.
(check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New
internal_error call on unknown FIELD_LOC_KIND.
* symtab.h (struct symtab): New field call_site_htab.
* utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete)
(core_addr_hash, core_addr_eq): New functions.
gdb/testsuite/
Implement basic support for DW_TAG_GNU_call_site.
* gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value.
* gdb.arch/amd64-entry-value.cc: New file.
* gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 21:21:39 +02:00
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/* `set debug entry-values' setting. */
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2012-08-02 11:36:40 +02:00
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extern unsigned int entry_values_debug;
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gdb/
Implement basic support for DW_TAG_GNU_call_site.
* block.c: Include gdbtypes.h and exceptions.h.
(call_site_for_pc): New function.
* block.h (call_site_for_pc): New declaration.
* defs.h: Include hashtab.h.
(make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New
declarations.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install
ctx_no_push_dwarf_reg_entry_value.
* dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL.
(dwarf_block_to_dwarf_reg): New function.
(execute_stack_op) <DW_OP_GNU_entry_value>: Implement it.
(ctx_no_push_dwarf_reg_entry_value): New function.
* dwarf2expr.h (struct dwarf_expr_context_funcs): New field
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New
declarations.
* dwarf2loc.c: Include gdbcmd.h.
(dwarf_expr_ctx_funcs): New forward declaration.
(entry_values_debug, show_entry_values_debug, call_site_to_target_addr)
(dwarf_expr_reg_to_entry_parameter)
(dwarf_expr_push_dwarf_reg_entry_value): New.
(dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value.
(dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR.
(needs_dwarf_reg_entry_value): New function.
(needs_frame_ctx_funcs): Install it.
(_initialize_dwarf2loc): New function.
* dwarf2loc.h (entry_values_debug): New declaration.
* dwarf2read.c (struct dwarf2_cu): New field call_site_htab.
(read_call_site_scope): New forward declaration.
(process_full_comp_unit): Copy call_site_htab.
(process_die): Support DW_TAG_GNU_call_site.
(read_call_site_scope): New function.
(dwarf2_get_pc_bounds): Support NULL HIGHPC.
(dwarf_tag_name): Support DW_TAG_GNU_call_site.
(cleanup_htab): Delete.
(write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it.
* exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR.
* gdb-gdb.py (StructMainTypePrettyPrinter): Support
FIELD_LOC_KIND_DWARF_BLOCK.
* gdbtypes.h (enum field_loc_kind): New entry
FIELD_LOC_KIND_DWARF_BLOCK.
(struct main_type): New loc entry dwarf_block.
(struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK)
(TYPE_FIELD_DWARF_BLOCK): New.
* python/py-type.c: Include dwarf2loc.h.
(check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New
internal_error call on unknown FIELD_LOC_KIND.
* symtab.h (struct symtab): New field call_site_htab.
* utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete)
(core_addr_hash, core_addr_eq): New functions.
gdb/testsuite/
Implement basic support for DW_TAG_GNU_call_site.
* gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value.
* gdb.arch/amd64-entry-value.cc: New file.
* gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 21:21:39 +02:00
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2010-07-13 17:09:03 +02:00
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/* Return the OBJFILE associated with the compilation unit CU. If CU
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came from a separate debuginfo file, then the master objfile is
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returned. */
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2008-03-18 20:40:47 +01:00
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struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu);
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/* Return the address size given in the compilation unit header for CU. */
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2012-01-05 22:53:14 +01:00
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int dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu);
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2008-03-18 20:40:47 +01:00
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2011-10-09 20:46:41 +02:00
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/* Return the DW_FORM_ref_addr size given in the compilation unit header for
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CU. */
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int dwarf2_per_cu_ref_addr_size (struct dwarf2_per_cu_data *cu);
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2010-06-02 21:37:56 +02:00
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/* Return the offset size given in the compilation unit header for CU. */
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int dwarf2_per_cu_offset_size (struct dwarf2_per_cu_data *cu);
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2010-07-13 17:09:03 +02:00
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/* Return the text offset of the CU. The returned offset comes from
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this CU's objfile. If this objfile came from a separate debuginfo
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file, then the offset may be different from the corresponding
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offset in the parent objfile. */
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CORE_ADDR dwarf2_per_cu_text_offset (struct dwarf2_per_cu_data *cu);
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2010-11-29 22:18:16 +01:00
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/* Find a particular location expression from a location list. */
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const gdb_byte *dwarf2_find_location_expression
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(struct dwarf2_loclist_baton *baton,
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size_t *locexpr_length,
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CORE_ADDR pc);
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2012-12-10 18:17:29 +01:00
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struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_sect_off
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(sect_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
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CORE_ADDR (*get_frame_pc) (void *baton),
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void *baton);
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struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_cu_off
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gdb/
Code cleanupp: Use cu_offset and sect_offset compile time type checking.
* dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op)
(ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and
sect_offset.
* dwarf2expr.h (cu_offset, sect_offset): New types.
(struct dwarf_expr_context_funcs) <dwarf_call>
(struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and
sect_offset.
(struct dwarf_expr_context) <len>: Improve the comment.
(struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use
cu_offset and sect_offset.
* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call)
(dwarf_expr_get_base_type, needs_frame_dwarf_call)
(dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise.
* dwarf2loc.h: Include dwarf2expr.h.
(dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset
and sect_offset.
* dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>:
Improve the comment.
(struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data)
(struct signatured_type, struct line_header, struct partial_die_info)
(struct die_info, find_partial_die, dwarf2_get_ref_die_offset)
(lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit)
(get_die_type_at_offset, create_cus_from_index)
(create_signatured_type_table_from_index, dw2_get_file_names)
(offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head)
(read_and_check_comp_unit_head, read_and_check_type_unit_head)
(create_debug_types_hash_table, process_psymtab_comp_unit)
(load_partial_comp_unit, create_all_comp_units)
(partial_die_parent_scope, partial_die_full_name, skip_one_die)
(load_full_comp_unit, dwarf2_physname, read_import_statement)
(inherit_abstract_dies, read_func_scope, read_call_site_scope)
(dwarf2_add_member_fn, process_enumeration_scope, read_module_type)
(read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs)
(load_partial_dies, read_partial_die, find_partial_die_in_comp_unit)
(find_partial_die, read_attribute_value, lookup_die_type)
(dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset.
(is_ref_attr): New function comment.
(dwarf2_get_ref_die_offset): New function comment, new variable retval.
Use cu_offset and sect_offset.
(follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block)
(dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset)
(load_full_type_unit, read_signatured_type, per_cu_header_read_in)
(dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type)
(offset_and_type_hash, offset_and_type_eq, set_die_type)
(get_die_type_at_offset, partial_die_hash, partial_die_eq)
(write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and
sect_offset.
2012-03-19 20:59:19 +01:00
|
|
|
(cu_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
|
2010-11-29 22:18:16 +01:00
|
|
|
CORE_ADDR (*get_frame_pc) (void *baton),
|
|
|
|
void *baton);
|
2010-06-07 21:55:33 +02:00
|
|
|
|
2013-05-06 21:44:04 +02:00
|
|
|
extern const gdb_byte *dwarf2_fetch_constant_bytes (sect_offset,
|
|
|
|
struct dwarf2_per_cu_data *,
|
|
|
|
struct obstack *,
|
|
|
|
LONGEST *);
|
|
|
|
|
gdb/
Code cleanupp: Use cu_offset and sect_offset compile time type checking.
* dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op)
(ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and
sect_offset.
* dwarf2expr.h (cu_offset, sect_offset): New types.
(struct dwarf_expr_context_funcs) <dwarf_call>
(struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and
sect_offset.
(struct dwarf_expr_context) <len>: Improve the comment.
(struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use
cu_offset and sect_offset.
* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call)
(dwarf_expr_get_base_type, needs_frame_dwarf_call)
(dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise.
* dwarf2loc.h: Include dwarf2expr.h.
(dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset
and sect_offset.
* dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>:
Improve the comment.
(struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data)
(struct signatured_type, struct line_header, struct partial_die_info)
(struct die_info, find_partial_die, dwarf2_get_ref_die_offset)
(lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit)
(get_die_type_at_offset, create_cus_from_index)
(create_signatured_type_table_from_index, dw2_get_file_names)
(offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head)
(read_and_check_comp_unit_head, read_and_check_type_unit_head)
(create_debug_types_hash_table, process_psymtab_comp_unit)
(load_partial_comp_unit, create_all_comp_units)
(partial_die_parent_scope, partial_die_full_name, skip_one_die)
(load_full_comp_unit, dwarf2_physname, read_import_statement)
(inherit_abstract_dies, read_func_scope, read_call_site_scope)
(dwarf2_add_member_fn, process_enumeration_scope, read_module_type)
(read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs)
(load_partial_dies, read_partial_die, find_partial_die_in_comp_unit)
(find_partial_die, read_attribute_value, lookup_die_type)
(dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset.
(is_ref_attr): New function comment.
(dwarf2_get_ref_die_offset): New function comment, new variable retval.
Use cu_offset and sect_offset.
(follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block)
(dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset)
(load_full_type_unit, read_signatured_type, per_cu_header_read_in)
(dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type)
(offset_and_type_hash, offset_and_type_eq, set_die_type)
(get_die_type_at_offset, partial_die_hash, partial_die_eq)
(write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and
sect_offset.
2012-03-19 20:59:19 +01:00
|
|
|
struct type *dwarf2_get_die_type (cu_offset die_offset,
|
2011-05-12 19:40:55 +02:00
|
|
|
struct dwarf2_per_cu_data *per_cu);
|
|
|
|
|
2014-05-14 22:28:58 +02:00
|
|
|
/* Find the frame base information for FRAMEFUNC at PC. START is an
|
|
|
|
out parameter which is set to point to the DWARF expression to
|
|
|
|
compute. LENGTH is an out parameter which is set to the length of
|
|
|
|
the DWARF expression. This throws an exception on error or if an
|
|
|
|
expression is not found; the returned length will never be
|
|
|
|
zero. */
|
|
|
|
|
|
|
|
extern void func_get_frame_base_dwarf_block (struct symbol *framefunc,
|
|
|
|
CORE_ADDR pc,
|
|
|
|
const gdb_byte **start,
|
|
|
|
size_t *length);
|
|
|
|
|
2010-08-12 21:55:38 +02:00
|
|
|
/* Evaluate a location description, starting at DATA and with length
|
|
|
|
SIZE, to find the current location of variable of TYPE in the context
|
|
|
|
of FRAME. */
|
|
|
|
|
|
|
|
struct value *dwarf2_evaluate_loc_desc (struct type *type,
|
|
|
|
struct frame_info *frame,
|
|
|
|
const gdb_byte *data,
|
2012-07-26 04:03:16 +02:00
|
|
|
size_t size,
|
2010-08-12 21:55:38 +02:00
|
|
|
struct dwarf2_per_cu_data *per_cu);
|
|
|
|
|
2014-09-03 10:07:46 +02:00
|
|
|
/* Converts a dynamic property into a static one. ADDRESS is the address
|
|
|
|
of the object currently being evaluated and might be nedded.
|
2013-10-09 16:28:22 +02:00
|
|
|
Returns 1 if PROP could be converted and the static value is passed back
|
|
|
|
into VALUE, otherwise returns 0. */
|
|
|
|
|
|
|
|
int dwarf2_evaluate_property (const struct dynamic_prop *prop,
|
2014-08-12 01:36:04 +02:00
|
|
|
CORE_ADDR address,
|
2014-04-29 14:27:14 +02:00
|
|
|
CORE_ADDR *value);
|
2013-10-09 16:28:22 +02:00
|
|
|
|
Initial support for Fission. http://gcc.gnu.org/wiki/DebugFission
* symfile.c (default_symfile_relocate): Use sectp->owner instead of
objfile->obfd.
* symfile.h (dwarf2_debug_sections): New member addr.
* dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index.
(ctx_no_get_addr_index): New function.
* dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index.
(ctx_no_get_addr_index): Declare.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update.
* dwarf2loc.c (dwarf_expr_get_addr_index): New function.
(dwarf_expr_ctx_funcs): Update.
(needs_get_addr_index): New function.
(needs_frame_ctx_funcs): Update.
* dwarf2loc.h (dwarf2_read_addr_index): Declare.
* dwarf2read.c: #include "gdbcore.h".
(dwarf2_per_objfile): New members addr, dwo_files.
(dwarf2_elf_names): Add entry for addr.
(struct dwo_section_names): New type.
(dwo_section_names): New static global.
(dwarf2_cu): New members dwo_unit, addr_base, have_addr_base.
(dwarf2_per_cu_data): New member is_debug_types, all boolean uses of
old debug_types_section member updated to use this.
Rename member debug_types_section to info_or_types_section,
all uses updated.
(signatured_type): Rename member type_offset to type_offset_in_tu,
all uses updated. New member type_offset_in_section.
(struct dwo_sections): New type.
(struct dwo_unit): New type.
(struct dwo_file): New type.
(die_reader_specs): New member dwo_file.
(dwarf2_locate_sections): Watch for .debug_addr.
(zlib_decompress_section): Use sectp->owner instead of objfile->obfd.
(dwarf2_read_section): Get bfd of section from bfd's asection,
instead of objfile.
(create_cus_from_index): Initialize the_cu->info_or_types_section.
(create_signatured_type_table_from_index): Initialize
sig_type->info_or_types_section.
(dw2_get_file_names): Statement lists for type units with DWO files
live in the DWO file.
(create_debug_types_hash_table): New function.
(create_all_type_units): Rewrite.
(init_cu_die_reader): New arg dwo_file, all callers updated.
(init_and_read_dies_worker): Get section from
this_cu->info_or_types_section. Set sig_type->type_offset_in_section.
Watch for DW_AT_GNU_dwo_name and if present lookup the file and
continue reading the CU/TU from there.
(init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers
updated. Get section from this_cu->info_or_types_section.
(create_all_comp_units): Initialize this_cu->info_or_types_section.
(skip_one_die): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(hash_dwo_file, eq_dwo_file): New functions.
(allocate_dwo_file_hash_table): New function.
(hash_dwo_unit, eq_dwo_unit): New functions.
(allocate_dwo_unit_table): New function.
(dwarf2_locate_dwo_sections): New function.
(struct create_dwo_info_table_data): New type.
(create_debug_info_hash_table_reader): New function.
(create_debug_info_hash_table): New function.
(try_open_dwo_file, open_dwo_file, init_dwo_file): New function.
(lookup_dwo_file): New function.
(lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions.
(free_dwo_file, free_dwo_file_cleanup): New functions.
(free_dwo_file_from_slot, free_dwo_files): New functions.
(dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index.
(dwarf2_record_block_ranges): Ditto.
(read_partial_die): Ditto.
(process_enumeration_scope): Update to use type_offset_in_section.
(read_full_die_1): New function.
(read_full_die): Rewrite.
(read_attribute_value): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(read_addr_index_1, read_addr_index): New functions.
(read_addr_index_from_leb128): New function.
(struct dwarf2_read_addr_index_data): New type.
(dwarf2_read_addr_index_reader): New function.
(dwarf2_read_addr_index): New function.
(read_str_index): New function.
(leb128_size): New function.
(dwarf_decode_line_header): Delete arg abfd, all callers updated.
If processing a type unit from a DWO file, get the line section
from the DWO file.
(var_decode_location): Watch for DW_OP_GNU_addr_index.
(dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(lookup_die_type): Check whether section offset of type's die is
known before looking it up. Remove assert. Condition can
legimately happen for inter-cu type references.
(dwarf_attr_name): Handle Fission attributes.
(dwarf_form_name): Handle Fission forms.
(dump_die_shallow): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(follow_die_sig): Update to use type_offset_in_section.
(decode_locdesc): New case DW_OP_GNU_addr_index.
(skip_form_bytes): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(cu_debug_loc_section): New function.
(fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it.
(dwarf2_per_objfile_free): Unmap .debug_addr section.
Free DWO files if present.
* xcoffread.c (dwarf2_xcoff_names): Add .debug_addr.
testsuite/
* gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from
.Ltype_int_in_cu2. Use name "int2" instead of "int".
All uses updated.
* gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of
"ptype func_cu1" to expand cu2 before cu1.
2012-04-29 01:22:14 +02:00
|
|
|
CORE_ADDR dwarf2_read_addr_index (struct dwarf2_per_cu_data *per_cu,
|
|
|
|
unsigned int addr_index);
|
|
|
|
|
2003-04-13 17:43:35 +02:00
|
|
|
/* The symbol location baton types used by the DWARF-2 reader (i.e.
|
|
|
|
SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol). "struct
|
|
|
|
dwarf2_locexpr_baton" is for a symbol with a single location
|
|
|
|
expression; "struct dwarf2_loclist_baton" is for a symbol with a
|
|
|
|
location list. */
|
Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
|
|
|
|
|
|
|
struct dwarf2_locexpr_baton
|
|
|
|
{
|
2011-10-13 00:04:12 +02:00
|
|
|
/* Pointer to the start of the location expression. Valid only if SIZE is
|
|
|
|
not zero. */
|
2010-05-26 17:21:13 +02:00
|
|
|
const gdb_byte *data;
|
2003-04-13 17:43:35 +02:00
|
|
|
|
2011-10-13 00:04:12 +02:00
|
|
|
/* Length of the location expression. For optimized out expressions it is
|
|
|
|
zero. */
|
2012-07-26 04:03:16 +02:00
|
|
|
size_t size;
|
2003-04-13 17:43:35 +02:00
|
|
|
|
2008-03-18 20:40:47 +01:00
|
|
|
/* The compilation unit containing the symbol whose location
|
|
|
|
we're computing. */
|
|
|
|
struct dwarf2_per_cu_data *per_cu;
|
2003-04-13 17:43:35 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
struct dwarf2_loclist_baton
|
|
|
|
{
|
|
|
|
/* The initial base address for the location list, based on the compilation
|
|
|
|
unit. */
|
|
|
|
CORE_ADDR base_address;
|
|
|
|
|
|
|
|
/* Pointer to the start of the location list. */
|
2010-05-26 17:21:13 +02:00
|
|
|
const gdb_byte *data;
|
2003-04-13 17:43:35 +02:00
|
|
|
|
|
|
|
/* Length of the location list. */
|
2012-07-26 04:03:16 +02:00
|
|
|
size_t size;
|
2003-04-13 17:43:35 +02:00
|
|
|
|
2008-03-18 20:40:47 +01:00
|
|
|
/* The compilation unit containing the symbol whose location
|
|
|
|
we're computing. */
|
|
|
|
struct dwarf2_per_cu_data *per_cu;
|
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end
"const gdb_byte *".
(struct dwarf2_fde): Make instructions, end "const gdb_byte *".
(execute_cfa_program): Update to match API of leb128 functions.
(read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter
"const gdb_byte *".
(read_unsigned_leb128, read_signed_leb128): Delete.
(read_initial_length): Change type of buf argument to
"const gdb_byte *".
(read_encoded_value): Update to match API of leb128 functions.
(decode_frame_entry): Change result to "const gdb_byte *", and
similarly for "start" parameter.
(decode_frame_entry_1): Ditto. Use new leb128 reader functions.
(dwarf2_build_frame_info): Change local frame_ptr to
"const gdb_byte *".
* dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces
read_uleb128, read_sleb128. All callers updated.
(safe_skip_leb128): New function.
(dwarf_block_to_dwarf_reg): Update to match API of leb128 functions.
Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128.
(dwarf_block_to_dwarf_reg_deref): Update to match API of leb128
functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of
read_uleb128, read_sleb128.
(dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto.
(execute_stack_op): Update to match API of leb128 functions.
* dwarf2expr.h: #include "leb128.h".
(read_uleb128, read_sleb128): Delete.
(gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions.
(safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare.
* dwarf2loc.c (debug_loc_kind): New enum.
(decode_debug_loc_addresses): New function.
(decode_debug_loc_dwo_addresses): New function.
(dwarf2_find_location_expression): Rewrite.
(dwarf2_compile_expr_to_ax): Update to match API of leb128 functions.
(locexpr_describe_location_piece): Ditto.
(disassemble_dwarf_expression): Ditto.
(locexpr_describe_location_1): Ditto.
(loclist_describe_location): Rewrite.
* dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo".
* dwarf2read.c (die_reader_specs): New member "buffer_end".
(dwarf2_section_buffer_overflow_complaint): Renamed from
dwarf2_macros_too_long_complaint. All callers updated.
(skip_leb128): Delete.
(init_cu_die_reader): Initialize reader->buffer_end.
(skip_one_die): Replace call to skip_leb128 with safe_skip_leb128.
(skip_form_bytes): New arg buffer_end. All callers updated.
Replace call to skip_leb128 with gdb_skip_leb128.
(skip_unknown_opcode): New arg mac_end. All callers updated.
(fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 20:45:22 +02:00
|
|
|
|
|
|
|
/* Non-zero if the location list lives in .debug_loc.dwo.
|
|
|
|
The format of entries in this section are different. */
|
|
|
|
unsigned char from_dwo;
|
Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
|
|
|
};
|
|
|
|
|
2013-10-09 16:28:22 +02:00
|
|
|
/* A dynamic property is either expressed as a single location expression
|
|
|
|
or a location list. If the property is an indirection, pointing to
|
|
|
|
another die, keep track of the targeted type in REFERENCED_TYPE. */
|
|
|
|
|
|
|
|
struct dwarf2_property_baton
|
|
|
|
{
|
|
|
|
/* If the property is an indirection, we need to evaluate the location
|
|
|
|
LOCEXPR or LOCLIST in the context of the type REFERENCED_TYPE.
|
|
|
|
If NULL, the location is the actual value of the property. */
|
|
|
|
struct type *referenced_type;
|
|
|
|
union
|
|
|
|
{
|
|
|
|
/* Location expression. */
|
|
|
|
struct dwarf2_locexpr_baton locexpr;
|
|
|
|
|
|
|
|
/* Location list to be evaluated in the context of REFERENCED_TYPE. */
|
|
|
|
struct dwarf2_loclist_baton loclist;
|
|
|
|
};
|
|
|
|
};
|
|
|
|
|
2009-06-04 14:28:39 +02:00
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extern const struct symbol_computed_ops dwarf2_locexpr_funcs;
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extern const struct symbol_computed_ops dwarf2_loclist_funcs;
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Based on a patch from Daniel Berlin (dberlin@dberlin.org).
* symtab.h: Add opaque declarations of struct axs_value and
struct agent_expr.
(enum address_class): Add LOC_COMPUTED and LOC_COMPUTED_ARG.
(struct location_funcs): New type.
(struct symbol): Add "loc" to aux_value.
(SYMBOL_LOCATION_BATON, SYMBOL_LOCATION_FUNCS): New macros.
* dwarf2read.c: Include "dwarf2expr.h".
(dwarf2_symbol_mark_computed): New function.
(read_func_scope): Use it.
(var_decode_location): New function.
(new_symbol): Use it.
* dwarf2expr.c, dwarf2expr.h, dwarf2loc.c, dwarf2loc.h: New files.
* Makefile.in (SFILES): Add dwarf2loc.c and dwarf2expr.c.
(dwarf2expr_h, dwarf2loc_h): New variables.
(COMMON_OBS): Add dwarf2expr.o and dwarf2loc.o.
(dwarf2expr.o, dwarf2loc.o): New rules.
(dwarf2read.o): Add $(dwarf2expr_h) and $(dwarf2loc_h).
* buildsym.c (finish_block): Handle LOC_COMPUTED and
LOC_COMPUTED_ARG.
* findvar.c (symbol_read_needs_frame, read_var_value): Likewise.
* m2-exp.y (yylex): Likewise.
* printcmd.c (address_info, print_frame_args): Likewise.
* stack.c (print_block_frame_locals, print_frame_arg_vars): Likewise.
* symmisc.c (print_symbol, print_partial_symbols): Likewise.
* ada-lang.c (ada_resolve_subexp, symtab_for_sym)
(ada_add_block_symbols, fill_in_ada_prototype): Likewise.
* symtab.c (lookup_block_symbol): Likewise.
2003-02-21 16:24:18 +01:00
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2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com>
Tom Tromey <tromey@redhat.com>
PR symtab/8421:
* coffread.c (coff_register_index): New global.
(process_coff_symbol, coff_read_enum_type): Set
SYMBOL_ACLASS_INDEX.
(_initialize_coffread): Initialize new global.
* dwarf2loc.c (locexpr_find_frame_base_location)
(dwarf2_block_frame_base_locexpr_funcs)
(loclist_find_frame_base_location)
(dwarf2_block_frame_base_loclist_funcs): New.
(dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error.
(dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist.
* dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs)
(dwarf2_block_frame_base_loclist_funcs): New.
* dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index)
(dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New
globals.
(read_func_scope): Update.
(fixup_go_packaging, mark_common_block_symbol_computed)
(var_decode_location, new_symbol_full, dwarf2_const_value):
Set SYMBOL_ACLASS_INDEX.
(dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument.
(_initialize_dwarf2_read): Initialize new globals.
* jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX.
* jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX.
* mdebugread.c (mdebug_register_index, mdebug_regparm_index): New
globals.
(parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX.
(_initialize_mdebugread): Initialize new globals.
* psympriv.h (struct partial_symbol) <aclass>: Update comment.
* stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX.
(stab_register_index, stab_regparm_index): New globals.
(define_symbol, read_enum_type, common_block_end): Set
SYMBOL_ACLASS_INDEX.
(_initialize_stabsread): Initialize new globals.
* symtab.c (next_aclass_value, symbol_impl, symbol_impls): New
globals.
(MAX_SYMBOL_IMPLS): New define.
(register_symbol_computed_impl, register_symbol_block_impl)
(register_symbol_register_impl)
(initialize_ordinary_address_classes): New functions.
(_initialize_symtab): Call initialize_ordinary_address_classes.
* symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant.
(struct symbol_impl): New.
(SYMBOL_ACLASS_BITS): New define.
(struct symbol) <aclass, ops>: Remove fields.
<aclass_index>: New field.
(symbol_impls): Declare.
(SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine.
(SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines.
(register_symbol_computed_impl, register_symbol_block_impl)
(register_symbol_register_impl): Declare.
(struct symbol_computed_ops): Add location_has_loclist.
(struct symbol_block_ops): New.
(SYMBOL_BLOCK_OPS): New.
* xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 19:33:05 +01:00
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extern const struct symbol_block_ops dwarf2_block_frame_base_locexpr_funcs;
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extern const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs;
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2011-02-17 17:20:44 +01:00
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/* Compile a DWARF location expression to an agent expression.
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EXPR is the agent expression we are building.
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LOC is the agent value we modify.
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ARCH is the architecture.
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ADDR_SIZE is the size of addresses, in bytes.
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OP_PTR is the start of the location expression.
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OP_END is one past the last byte of the location expression.
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This will throw an exception for various kinds of errors -- for
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example, if the expression cannot be compiled, or if the expression
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is invalid. */
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extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr,
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struct axs_value *loc,
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struct gdbarch *arch,
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unsigned int addr_size,
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const gdb_byte *op_ptr,
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const gdb_byte *op_end,
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struct dwarf2_per_cu_data *per_cu);
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gdb/
Recognize virtual tail call frames.
* Makefile.in (SFILES): Add dwarf2-frame-tailcall.c.
(HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h.
(COMMON_OBS): Add dwarf2-frame-tailcall.o.
* dwarf2-frame-tailcall.c: New file.
* dwarf2-frame-tailcall.h: New file.
* dwarf2-frame.c: Include dwarf2-frame-tailcall.h.
(execute_cfa_program): New function comment. Return INSN_PTR. Reset
REGS.PREV only after CIE execution.
(struct dwarf2_frame_cache): New field tailcall_cache.
(dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset,
entry_cfa_sp_offset_p and instr. Execute FDE instructions in two
parts, try to find entry_cfa_sp_offset. Call
dwarf2_tailcall_sniffer_first.
(dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first
when appropriate.
(dwarf2_frame_dealloc_cache): New function.
(dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache.
(dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache.
(dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache.
(dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind.
(dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind.
* dwarf2loc.c (func_addr_to_tail_call_list)
(tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate)
(call_site_find_chain_1, call_site_find_chain): New.
* dwarf2loc.h (struct call_site_chain): New.
(call_site_find_chain): New declaration.
* frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME.
* frame.h (enum frame_type): New entry TAILCALL_FRAME.
* python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME.
* stack.c (frame_info): Support also TAILCALL_FRAME.
gdb/doc/
Recognize virtual tail call frames.
* gdb.texinfo (Optimized Code): Add reference to Tail Call Frames.
(Tail Call Frames): New node.
(Frames In Python): Add gdb.TAILCALL_FRAME.
gdb/testsuite/
Recognize virtual tail call frames.
* gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb)
(amb_b, amb_a): New.
(main): Call a and b.
* gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt)
(tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3)
(p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt):
New tests.
2011-10-09 21:26:44 +02:00
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/* Determined tail calls for constructing virtual tail call frames. */
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struct call_site_chain
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{
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/* Initially CALLERS == CALLEES == LENGTH. For partially ambiguous result
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CALLERS + CALLEES < LENGTH. */
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int callers, callees, length;
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/* Variably sized array with LENGTH elements. Later [0..CALLERS-1] contain
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top (GDB "prev") sites and [LENGTH-CALLEES..LENGTH-1] contain bottom
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(GDB "next") sites. One is interested primarily in the PC field. */
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struct call_site *call_site[1];
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};
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struct call_site_stuff;
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extern struct call_site_chain *call_site_find_chain (struct gdbarch *gdbarch,
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CORE_ADDR caller_pc,
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CORE_ADDR callee_pc);
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2005-07-12 15:06:54 +02:00
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#endif /* dwarf2loc.h */
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