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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.
This commit is contained in:
Jan Kratochvil
parent
2e98ca5343
commit
b64f50a1ae
@ -1,3 +1,54 @@
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2012-03-19 Jan Kratochvil <jan.kratochvil@redhat.com>
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Code cleanupp: Use cu_offset and sect_offset compile time type checking.
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* dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op)
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(ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and
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sect_offset.
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* dwarf2expr.h (cu_offset, sect_offset): New types.
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(struct dwarf_expr_context_funcs) <dwarf_call>
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(struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and
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sect_offset.
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(struct dwarf_expr_context) <len>: Improve the comment.
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(struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use
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cu_offset and sect_offset.
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* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call)
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(dwarf_expr_get_base_type, needs_frame_dwarf_call)
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(dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise.
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* dwarf2loc.h: Include dwarf2expr.h.
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(dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset
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and sect_offset.
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* dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>:
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Improve the comment.
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(struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data)
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(struct signatured_type, struct line_header, struct partial_die_info)
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(struct die_info, find_partial_die, dwarf2_get_ref_die_offset)
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(lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit)
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(get_die_type_at_offset, create_cus_from_index)
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(create_signatured_type_table_from_index, dw2_get_file_names)
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(offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head)
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(read_and_check_comp_unit_head, read_and_check_type_unit_head)
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(create_debug_types_hash_table, process_psymtab_comp_unit)
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(load_partial_comp_unit, create_all_comp_units)
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(partial_die_parent_scope, partial_die_full_name, skip_one_die)
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(load_full_comp_unit, dwarf2_physname, read_import_statement)
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(inherit_abstract_dies, read_func_scope, read_call_site_scope)
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(dwarf2_add_member_fn, process_enumeration_scope, read_module_type)
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(read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs)
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(load_partial_dies, read_partial_die, find_partial_die_in_comp_unit)
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(find_partial_die, read_attribute_value, lookup_die_type)
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(dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset.
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(is_ref_attr): New function comment.
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(dwarf2_get_ref_die_offset): New function comment, new variable retval.
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Use cu_offset and sect_offset.
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(follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block)
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(dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset)
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(load_full_type_unit, read_signatured_type, per_cu_header_read_in)
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(dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type)
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(offset_and_type_hash, offset_and_type_eq, set_die_type)
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(get_die_type_at_offset, partial_die_hash, partial_die_eq)
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(write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and
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sect_offset.
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2012-03-19 Jan Kratochvil <jan.kratochvil@redhat.com>
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Code cleanup.
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@ -342,7 +342,7 @@ add_piece (struct dwarf_expr_context *ctx, ULONGEST size, ULONGEST offset)
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}
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else if (p->location == DWARF_VALUE_IMPLICIT_POINTER)
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{
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p->v.ptr.die = ctx->len;
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p->v.ptr.die.cu_off = ctx->len;
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p->v.ptr.offset = value_as_long (dwarf_expr_fetch (ctx, 0));
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}
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else if (p->location == DWARF_VALUE_REGISTER)
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@ -464,7 +464,7 @@ base_types_equal_p (struct type *t1, struct type *t2)
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size. */
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static struct type *
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dwarf_get_base_type (struct dwarf_expr_context *ctx, ULONGEST die, int size)
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dwarf_get_base_type (struct dwarf_expr_context *ctx, cu_offset die, int size)
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{
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struct type *result;
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@ -869,7 +869,7 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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error (_("DWARF-2 expression error: DW_OP_GNU_implicit_pointer "
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"is not allowed in frame context"));
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/* The referred-to DIE. */
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/* The referred-to DIE of cu_offset kind. */
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ctx->len = extract_unsigned_integer (op_ptr, ctx->ref_addr_size,
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byte_order);
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op_ptr += ctx->ref_addr_size;
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@ -1031,9 +1031,10 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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if (op == DW_OP_GNU_deref_type)
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{
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ULONGEST type_die;
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cu_offset type_die;
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op_ptr = read_uleb128 (op_ptr, op_end, &type_die);
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op_ptr = read_uleb128 (op_ptr, op_end, &uoffset);
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type_die.cu_off = uoffset;
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type = dwarf_get_base_type (ctx, type_die, 0);
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}
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else
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@ -1335,15 +1336,23 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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goto no_push;
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case DW_OP_call2:
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result = extract_unsigned_integer (op_ptr, 2, byte_order);
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op_ptr += 2;
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ctx->funcs->dwarf_call (ctx, result);
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{
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cu_offset offset;
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offset.cu_off = extract_unsigned_integer (op_ptr, 2, byte_order);
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op_ptr += 2;
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ctx->funcs->dwarf_call (ctx, offset);
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}
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goto no_push;
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case DW_OP_call4:
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result = extract_unsigned_integer (op_ptr, 4, byte_order);
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op_ptr += 4;
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ctx->funcs->dwarf_call (ctx, result);
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{
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cu_offset offset;
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offset.cu_off = extract_unsigned_integer (op_ptr, 4, byte_order);
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op_ptr += 4;
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ctx->funcs->dwarf_call (ctx, offset);
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}
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goto no_push;
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case DW_OP_GNU_entry_value:
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@ -1386,12 +1395,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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case DW_OP_GNU_const_type:
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{
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ULONGEST type_die;
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cu_offset type_die;
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int n;
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const gdb_byte *data;
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struct type *type;
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op_ptr = read_uleb128 (op_ptr, op_end, &type_die);
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op_ptr = read_uleb128 (op_ptr, op_end, &uoffset);
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type_die.cu_off = uoffset;
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n = *op_ptr++;
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data = op_ptr;
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op_ptr += n;
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@ -1403,11 +1413,12 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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case DW_OP_GNU_regval_type:
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{
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ULONGEST type_die;
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cu_offset type_die;
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struct type *type;
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op_ptr = read_uleb128 (op_ptr, op_end, ®);
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op_ptr = read_uleb128 (op_ptr, op_end, &type_die);
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op_ptr = read_uleb128 (op_ptr, op_end, &uoffset);
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type_die.cu_off = uoffset;
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type = dwarf_get_base_type (ctx, type_die, 0);
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result = (ctx->funcs->read_reg) (ctx->baton, reg);
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@ -1420,12 +1431,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
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case DW_OP_GNU_convert:
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case DW_OP_GNU_reinterpret:
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{
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ULONGEST type_die;
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cu_offset type_die;
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struct type *type;
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op_ptr = read_uleb128 (op_ptr, op_end, &type_die);
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op_ptr = read_uleb128 (op_ptr, op_end, &uoffset);
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type_die.cu_off = uoffset;
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if (type_die == 0)
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if (type_die.cu_off == 0)
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type = address_type;
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else
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type = dwarf_get_base_type (ctx, type_die, 0);
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@ -1506,7 +1518,7 @@ ctx_no_get_tls_address (void *baton, CORE_ADDR offset)
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/* Stub dwarf_expr_context_funcs.dwarf_call implementation. */
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void
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ctx_no_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
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ctx_no_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset)
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{
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error (_("%s is invalid in this context"), "DW_OP_call*");
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}
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@ -1514,7 +1526,7 @@ ctx_no_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
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/* Stub dwarf_expr_context_funcs.get_base_type implementation. */
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struct type *
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ctx_no_get_base_type (struct dwarf_expr_context *ctx, size_t die)
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ctx_no_get_base_type (struct dwarf_expr_context *ctx, cu_offset die)
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{
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error (_("Support for typed DWARF is not supported in this context"));
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}
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@ -25,6 +25,18 @@
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struct dwarf_expr_context;
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/* Offset relative to the start of its containing CU (compilation unit). */
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typedef struct
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{
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unsigned int cu_off;
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} cu_offset;
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/* Offset relative to the start of its .debug_info or .debug_types section. */
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typedef struct
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{
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unsigned int sect_off;
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} sect_offset;
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/* Virtual method table for struct dwarf_expr_context below. */
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struct dwarf_expr_context_funcs
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@ -53,14 +65,14 @@ struct dwarf_expr_context_funcs
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/* Execute DW_AT_location expression for the DWARF expression subroutine in
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the DIE at DIE_OFFSET in the CU from CTX. Do not touch STACK while it
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being passed to and returned from the called DWARF subroutine. */
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void (*dwarf_call) (struct dwarf_expr_context *ctx, size_t die_offset);
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void (*dwarf_call) (struct dwarf_expr_context *ctx, cu_offset die_offset);
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/* Return the base type given by the indicated DIE. This can throw
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an exception if the DIE is invalid or does not represent a base
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type. If can also be NULL in the special case where the
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callbacks are not performing evaluation, and thus it is
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meaningful to substitute a stub type of the correct size. */
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struct type *(*get_base_type) (struct dwarf_expr_context *ctx, size_t die);
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struct type *(*get_base_type) (struct dwarf_expr_context *ctx, cu_offset die);
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/* Push on DWARF stack an entry evaluated for DW_TAG_GNU_call_site's
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DWARF_REG/FB_OFFSET at the caller of specified BATON. If DWARF register
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@ -160,7 +172,7 @@ struct dwarf_expr_context
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/* For DWARF_VALUE_LITERAL, the current literal value's length and
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data. For DWARF_VALUE_IMPLICIT_POINTER, LEN is the offset of the
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target DIE. */
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target DIE of cu_offset kind. */
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ULONGEST len;
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const gdb_byte *data;
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@ -231,7 +243,7 @@ struct dwarf_expr_piece
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struct
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{
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/* The referent DIE from DW_OP_GNU_implicit_pointer. */
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ULONGEST die;
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cu_offset die;
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/* The byte offset into the resulting data. */
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LONGEST offset;
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} ptr;
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@ -275,8 +287,9 @@ void ctx_no_get_frame_base (void *baton, const gdb_byte **start,
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CORE_ADDR ctx_no_get_frame_cfa (void *baton);
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CORE_ADDR ctx_no_get_frame_pc (void *baton);
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CORE_ADDR ctx_no_get_tls_address (void *baton, CORE_ADDR offset);
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void ctx_no_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset);
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struct type *ctx_no_get_base_type (struct dwarf_expr_context *ctx, size_t die);
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void ctx_no_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset);
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struct type *ctx_no_get_base_type (struct dwarf_expr_context *ctx,
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cu_offset die);
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void ctx_no_push_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
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int dwarf_reg, CORE_ADDR fb_offset,
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int deref_size);
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@ -284,7 +284,7 @@ dwarf_expr_tls_address (void *baton, CORE_ADDR offset)
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call and return. */
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static void
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per_cu_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset,
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per_cu_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset,
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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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@ -303,7 +303,7 @@ per_cu_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset,
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/* Helper interface of per_cu_dwarf_call for dwarf2_evaluate_loc_desc. */
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static void
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dwarf_expr_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
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dwarf_expr_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset)
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{
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struct dwarf_expr_baton *debaton = ctx->baton;
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@ -314,7 +314,8 @@ dwarf_expr_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
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/* Callback function for dwarf2_evaluate_loc_desc. */
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static struct type *
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dwarf_expr_get_base_type (struct dwarf_expr_context *ctx, size_t die_offset)
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dwarf_expr_get_base_type (struct dwarf_expr_context *ctx,
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cu_offset die_offset)
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{
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struct dwarf_expr_baton *debaton = ctx->baton;
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@ -2221,7 +2222,7 @@ needs_frame_tls_address (void *baton, CORE_ADDR offset)
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/* Helper interface of per_cu_dwarf_call for dwarf2_loc_desc_needs_frame. */
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static void
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needs_frame_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset)
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needs_frame_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset)
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{
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struct needs_frame_baton *nf_baton = ctx->baton;
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@ -3014,11 +3015,13 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
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{
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struct dwarf2_locexpr_baton block;
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int size = (op == DW_OP_call2 ? 2 : 4);
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cu_offset offset;
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uoffset = extract_unsigned_integer (op_ptr, size, byte_order);
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op_ptr += size;
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block = dwarf2_fetch_die_location_block (uoffset, per_cu,
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offset.cu_off = uoffset;
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block = dwarf2_fetch_die_location_block (offset, per_cu,
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get_ax_pc, expr);
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/* DW_OP_call_ref is currently not supported. */
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@ -3517,43 +3520,48 @@ disassemble_dwarf_expression (struct ui_file *stream,
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case DW_OP_GNU_deref_type:
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{
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int addr_size = *data++;
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ULONGEST offset;
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cu_offset offset;
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struct type *type;
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data = read_uleb128 (data, end, &offset);
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data = read_uleb128 (data, end, &ul);
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offset.cu_off = ul;
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type = dwarf2_get_die_type (offset, per_cu);
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fprintf_filtered (stream, "<");
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type_print (type, "", stream, -1);
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fprintf_filtered (stream, " [0x%s]> %d", phex_nz (offset, 0),
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fprintf_filtered (stream, " [0x%s]> %d", phex_nz (offset.cu_off, 0),
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addr_size);
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}
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break;
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case DW_OP_GNU_const_type:
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{
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ULONGEST type_die;
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cu_offset type_die;
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struct type *type;
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|
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data = read_uleb128 (data, end, &type_die);
|
||||
data = read_uleb128 (data, end, &ul);
|
||||
type_die.cu_off = ul;
|
||||
type = dwarf2_get_die_type (type_die, per_cu);
|
||||
fprintf_filtered (stream, "<");
|
||||
type_print (type, "", stream, -1);
|
||||
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die, 0));
|
||||
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die.cu_off, 0));
|
||||
}
|
||||
break;
|
||||
|
||||
case DW_OP_GNU_regval_type:
|
||||
{
|
||||
ULONGEST type_die, reg;
|
||||
ULONGEST reg;
|
||||
cu_offset type_die;
|
||||
struct type *type;
|
||||
|
||||
data = read_uleb128 (data, end, ®);
|
||||
data = read_uleb128 (data, end, &type_die);
|
||||
data = read_uleb128 (data, end, &ul);
|
||||
type_die.cu_off = ul;
|
||||
|
||||
type = dwarf2_get_die_type (type_die, per_cu);
|
||||
fprintf_filtered (stream, "<");
|
||||
type_print (type, "", stream, -1);
|
||||
fprintf_filtered (stream, " [0x%s]> [$%s]", phex_nz (type_die, 0),
|
||||
fprintf_filtered (stream, " [0x%s]> [$%s]",
|
||||
phex_nz (type_die.cu_off, 0),
|
||||
locexpr_regname (arch, reg));
|
||||
}
|
||||
break;
|
||||
@ -3561,11 +3569,12 @@ disassemble_dwarf_expression (struct ui_file *stream,
|
||||
case DW_OP_GNU_convert:
|
||||
case DW_OP_GNU_reinterpret:
|
||||
{
|
||||
ULONGEST type_die;
|
||||
cu_offset type_die;
|
||||
|
||||
data = read_uleb128 (data, end, &type_die);
|
||||
data = read_uleb128 (data, end, &ul);
|
||||
type_die.cu_off = ul;
|
||||
|
||||
if (type_die == 0)
|
||||
if (type_die.cu_off == 0)
|
||||
fprintf_filtered (stream, "<0>");
|
||||
else
|
||||
{
|
||||
@ -3574,7 +3583,7 @@ disassemble_dwarf_expression (struct ui_file *stream,
|
||||
type = dwarf2_get_die_type (type_die, per_cu);
|
||||
fprintf_filtered (stream, "<");
|
||||
type_print (type, "", stream, -1);
|
||||
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die, 0));
|
||||
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die.cu_off, 0));
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
@ -20,6 +20,8 @@
|
||||
#if !defined (DWARF2LOC_H)
|
||||
#define DWARF2LOC_H
|
||||
|
||||
#include "dwarf2expr.h"
|
||||
|
||||
struct symbol_computed_ops;
|
||||
struct objfile;
|
||||
struct dwarf2_per_cu_data;
|
||||
@ -61,11 +63,11 @@ const gdb_byte *dwarf2_find_location_expression
|
||||
CORE_ADDR pc);
|
||||
|
||||
struct dwarf2_locexpr_baton dwarf2_fetch_die_location_block
|
||||
(unsigned int offset_in_cu, struct dwarf2_per_cu_data *per_cu,
|
||||
(cu_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
|
||||
CORE_ADDR (*get_frame_pc) (void *baton),
|
||||
void *baton);
|
||||
|
||||
struct type *dwarf2_get_die_type (unsigned int die_offset,
|
||||
struct type *dwarf2_get_die_type (cu_offset die_offset,
|
||||
struct dwarf2_per_cu_data *per_cu);
|
||||
|
||||
/* Evaluate a location description, starting at DATA and with length
|
||||
|
||||
367
gdb/dwarf2read.c
367
gdb/dwarf2read.c
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user