Cary Coutant f0c3f9ad7b Add gold support for two-level line tables.
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.
2015-02-22 23:43:57 -08:00
2015-02-22 23:43:48 -08:00
2015-01-23 13:11:06 -08:00
2014-12-06 16:09:33 +01:00
2014-12-06 16:09:33 +01:00

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.
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