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f0c3f9ad7b
2015-01-30 Cary Coutant <ccoutant@google.com> elfcpp/ * dwarf.h (enum DW_LNS): Add experimental two-level line table opcodes. (enum DW_LNCT): New enum for DWARF-5. gold/ * debug.h (DEBUG_LOCATION): New constant. (debug_string_to_enum): Add DEBUG_LOCATION. * dwarf_reader.cc (struct LineStateMachine): Add context field. (ResetLineStateMachine): Likewise. (Sized_dwarf_line_info::Sized_dwarf_line_info): Add support for two-level line tables. (Sized_dwarf_line_info::read_header_prolog): Likewise. Also add support for DWARF-3+ line tables. (Sized_dwarf_line_info::read_header_tables_v5): New method. (Sized_dwarf_line_info::process_one_opcode): Add support for two-level line tables. (Sized_dwarf_line_info::read_lines): Likewise. (Sized_dwarf_line_info::read_line_mappings): Likewise. (Sized_dwarf_line_info::do_addr2line): Add debug output. * dwarf_reader.h (Sized_dwarf_line_info::~Sized_dwarf_line_info): Delete str_buffer_start_. (DWARF5_EXPERIMENTAL_LINE_TABLE): New constant. (Sized_dwarf_line_info::read_header_tables_v5): New method. (Sized_dwarf_line_info::read_lines): Update prototype. (Sized_dwarf_line_info::process_one_opcode): Likewise. (Sized_dwarf_line_info::max_ops_per_insn): New data member. (Sized_dwarf_line_info::str_buffer_): New data member. (Sized_dwarf_line_info::str_buffer_end_): New data member. (Sized_dwarf_line_info::str_buffer_start_): New data member. (Sized_dwarf_line_info::end_of_header_length_): New data member. (Sized_dwarf_line_info::logicals_start_): New data member. (Sized_dwarf_line_info::actuals_start_): New data member. (Sized_dwarf_line_info::end_of_unit_): New data member.
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
// debug.h -- gold internal debugging support -*- C++ -*-
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// Copyright (C) 2007-2015 Free Software Foundation, Inc.
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// Written by Ian Lance Taylor <iant@google.com>.
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// This file is part of gold.
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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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// the Free Software Foundation; either version 3 of the License, or
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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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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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#ifndef GOLD_DEBUG_H
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#define GOLD_DEBUG_H
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#include <cstring>
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#include "parameters.h"
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#include "errors.h"
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namespace gold
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{
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// The different types of debugging we support. These are bitflags.
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const int DEBUG_TASK = 0x1;
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const int DEBUG_SCRIPT = 0x2;
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const int DEBUG_FILES = 0x4;
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const int DEBUG_RELAXATION = 0x8;
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const int DEBUG_INCREMENTAL = 0x10;
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const int DEBUG_LOCATION = 0x20;
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const int DEBUG_ALL = (DEBUG_TASK | DEBUG_SCRIPT | DEBUG_FILES
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| DEBUG_RELAXATION | DEBUG_INCREMENTAL
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| DEBUG_LOCATION);
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// Convert a debug string to the appropriate enum.
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inline int
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debug_string_to_enum(const char* arg)
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{
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static const struct { const char* name; int value; }
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debug_options[] =
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{
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{ "task", DEBUG_TASK },
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{ "script", DEBUG_SCRIPT },
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{ "files", DEBUG_FILES },
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{ "relaxation", DEBUG_RELAXATION },
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{ "incremental", DEBUG_INCREMENTAL },
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{ "location", DEBUG_LOCATION },
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{ "all", DEBUG_ALL }
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};
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int retval = 0;
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for (size_t i = 0; i < sizeof(debug_options) / sizeof(*debug_options); ++i)
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if (strstr(arg, debug_options[i].name))
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retval |= debug_options[i].value;
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return retval;
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}
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// Print a debug message if TYPE is enabled. This is a macro so that
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// we only evaluate the arguments if necessary.
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#define gold_debug(TYPE, FORMAT, ...) \
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do \
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{ \
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if (is_debugging_enabled(TYPE)) \
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parameters->errors()->debug(FORMAT, __VA_ARGS__); \
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} \
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while (0)
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} // End namespace gold.
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#endif // !defined(GOLD_DEBUG_H)
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