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b6ec2dfd85
bugxml/data.txt
libdwarf
* dwarf_errmsg_list.c: Added DW_DLE_ZLIB_SECTION_SHORT.
* dwarf_form.c: Now checking for section overrun.
* dwarf_init_finish.c: Now checking zlib reading
for section overrun.
* dwarf_macro5.c: Now checking for section overrun and
also fixing double delete caused by having
_dwarf_get_alloc() space pointing at other _dwarf_get_alloc()
space. Because in case of error the order of free
of such is unpredictable!
* dwarf_macro5.h: Added comment on mc_srcfiles member.
* libdwarf.h.in: Added DW_DLE_ZLIB_SECTION_SHORT.
143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/*
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Copyright (C) 2015-2015 David Anderson. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it
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under the terms of version 2.1 of the GNU Lesser General Public License
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as published by the Free Software Foundation.
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This program is distributed in the hope that it would be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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Further, this software is distributed without any warranty that it is
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free of the rightful claim of any third person regarding infringement
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or the like. Any license provided herein, whether implied or
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otherwise, applies only to this software file. Patent licenses, if
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any, provided herein do not apply to combinations of this program with
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other software, or any other product whatsoever.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301,
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USA.
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*/
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/*
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dwarf_macro5.h
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For the DWARF5 .debug_macro section
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(also appears as an extension to DWARF4)
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*/
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struct Dwarf_Macro_Forms_s {
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/* Code means DW_MACRO_define etc. */
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Dwarf_Small mf_code;
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/* How many entries in mf_formbytes array. */
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Dwarf_Small mf_formcount;
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/* Never free these, these are in the object file memory */
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const Dwarf_Small * mf_formbytes;
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};
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struct Dwarf_Macro_OperationsList_s {
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unsigned mol_count;
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struct Dwarf_Macro_Forms_s * mol_data;
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};
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struct Dwarf_Macro_Operator_s {
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/* mo_opcode == mo_form->mf_code */
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Dwarf_Small mo_opcode;
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struct Dwarf_Macro_Forms_s * mo_form;
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/* Points at the first byte of the data, meaning
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it points one-past the macro operation code byte. */
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Dwarf_Small * mo_data;
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};
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#define MACRO_OFFSET_SIZE_FLAG 1
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#define MACRO_LINE_OFFSET_FLAG 2
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#define MACRO_OP_TABLE_FLAG 4
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/* Could be reordered to be most space efficient.
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That might be a little harder to read. Hmm. */
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struct Dwarf_Macro_Context_s {
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Dwarf_Word mc_sentinel;
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Dwarf_Half mc_version_number;
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/* Section_offset in .debug_macro of macro header */
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Dwarf_Unsigned mc_section_offset;
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/* Total length of the macro data for this CU.
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Calculated, not part of header. */
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Dwarf_Unsigned mc_total_length;
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Dwarf_Half mc_macro_header_length;
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Dwarf_Small mc_flags;
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/* If DW_MACRO_start_file is in the operators of this
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table then the mc_debug_line_offset must be present from
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the header. */
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Dwarf_Unsigned mc_debug_line_offset;
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/* the following three set from the bits in mc_flags */
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/* If 1, offsets 64 bits */
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Dwarf_Bool mc_offset_size_flag;
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/* if 1, debug_line offset is present. */
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Dwarf_Bool mc_debug_line_offset_flag;
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/* 4 or 8, depending on mc_offset_size_flag */
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Dwarf_Small mc_offset_size;
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/* If one the operands/opcodes (mc_opcode_forms) table is present
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in the header. If not we use a default table.
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Even when there are operands in the header
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the standardops may or may not be
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defined in the header. */
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Dwarf_Bool mc_operands_table_flag;
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/* Count of the Dwarf_Macro_Forms_s structs pointed to by
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mc_opcode_forms. These from the header. */
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Dwarf_Small mc_opcode_count;
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struct Dwarf_Macro_Forms_s *mc_opcode_forms;
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/* mc_ops must be free()d, but pointers inside
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mc_ops are to static or section data so must not
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be freed. */
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Dwarf_Unsigned mc_macro_ops_count;
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Dwarf_Unsigned mc_ops_data_length;
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struct Dwarf_Macro_Operator_s *mc_ops;
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Dwarf_Small * mc_macro_header;
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Dwarf_Small * mc_macro_ops;
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/* These are malloc space, not _dwarf_get_alloc()
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so the DW_DLA_MACRO_CONTEXT dealloc will
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free them. */
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char ** mc_srcfiles;
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Dwarf_Signed mc_srcfiles_count;
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/* These are from CU DIE attribute names.
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They may be NULL or point at data in
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a dwarf section. Do not free().
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This attempts to make up for the lack of a
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base file name
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in DWARF2,3,4 line tables.
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*/
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const char * mc_at_comp_dir;
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const char * mc_at_name;
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/* The following is malloc,so macro_context_s destructor
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needs to free it. */
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const char * mc_file_path;
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Dwarf_Debug mc_dbg;
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Dwarf_CU_Context mc_cu_context;
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};
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int _dwarf_macro_constructor(Dwarf_Debug dbg, void *m);
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void _dwarf_macro_destructor(void *m);
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