mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 18:14:13 +08:00
ae0d2f24fd
Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/* DWARF 2 location expression support for GDB.
|
|
|
|
Copyright (C) 2003, 2005, 2007, 2008 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#if !defined (DWARF2LOC_H)
|
|
#define DWARF2LOC_H
|
|
|
|
struct symbol_ops;
|
|
struct objfile;
|
|
struct dwarf2_per_cu_data;
|
|
|
|
/* This header is private to the DWARF-2 reader. It is shared between
|
|
dwarf2read.c and dwarf2loc.c. */
|
|
|
|
/* Return the OBJFILE associated with the compilation unit CU. */
|
|
struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu);
|
|
|
|
/* Return the address size given in the compilation unit header for CU. */
|
|
CORE_ADDR dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu);
|
|
|
|
/* 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. */
|
|
|
|
struct dwarf2_locexpr_baton
|
|
{
|
|
/* Pointer to the start of the location expression. */
|
|
gdb_byte *data;
|
|
|
|
/* Length of the location expression. */
|
|
unsigned long size;
|
|
|
|
/* The compilation unit containing the symbol whose location
|
|
we're computing. */
|
|
struct dwarf2_per_cu_data *per_cu;
|
|
};
|
|
|
|
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. */
|
|
gdb_byte *data;
|
|
|
|
/* Length of the location list. */
|
|
unsigned long size;
|
|
|
|
/* The compilation unit containing the symbol whose location
|
|
we're computing. */
|
|
struct dwarf2_per_cu_data *per_cu;
|
|
};
|
|
|
|
extern const struct symbol_ops dwarf2_locexpr_funcs;
|
|
extern const struct symbol_ops dwarf2_loclist_funcs;
|
|
|
|
#endif /* dwarf2loc.h */
|