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Simon Marchi 2e6711003b Pass existing_cu object to cutu_reader
It is possible, seemingly for a special case described in
find_partial_die, for cutu_reader to re-use an existing dwarf2_cu
instead of creating a new one.  This happens when running this test, for
example:

    make check TESTS="gdb.dwarf2/fission-reread.exp"

Right now the, `use_existing_cu` flag tells cutu_reader to use the
dwarf2_cu object at dwarf2_per_cu_data::cu.  However, we'll remove that
field, so we need to find another solution.

This situation arises when some caller up the stack has already created
the dwarf2_cu to read a dwarf2_per_cu_data, but needs to re-read it with
some other parameters.  Therefore, it's possible to just have that
caller pass down the dwarf2_cu object to use as a `existing_cu`
parameter.  If `existing_cu` is NULL, it tells cutu_reader that it needs
to instantiate a new one.

gdb/ChangeLog:

	* dwarf2/read.c (class cutu_reader) <cutu_reader>: Replace
	`int use_existing_cu` parameter with `dwarf2_cu *existing_cu`.
	(init_tu_and_read_dwo_dies): Likewise.
	(cutu_reader::init_tu_and_read_dwo_dies): Likewise.
	(cutu_reader::cutu_reader): Likewise.
	(load_partial_comp_unit): Likewise.
	(process_psymtab_comp_unit): Update.
	(build_type_psymtabs_1): Update.
	(process_skeletonless_type_unit): Update.
	(load_full_comp_unit): Update.
	(find_partial_die): Update.
	(dwarf2_read_addr_index): Update.
	(read_signatured_type): Update.

Change-Id: Id03e3bc3de3cf99d9e4b4080ad83b029c93bf434
2020-05-27 11:19:40 -04:00
bfd ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
binutils ar many_files test 2020-05-23 14:56:07 +09:30
config Sync config with GCC 2020-05-16 06:07:12 -07:00
contrib contrib: Update dg-extract-results.* from gcc 2020-05-15 11:41:22 +01:00
cpu Replace "if (x) free (x)" with "free (x)", opcodes 2020-05-21 10:45:33 +09:30
elfcpp
etc
gas gas: Adjust x86 tests for PECOFF 2020-05-26 14:18:08 -07:00
gdb Pass existing_cu object to cutu_reader 2020-05-27 11:19:40 -04:00
gdbserver Use construct_inferior_arguments which handles special chars 2020-05-25 11:40:00 -04:00
gdbsupport gdbsupport: Drop now unused function 'stringify_argv' 2020-05-25 11:40:35 -04:00
gnulib
gold PowerPC: downgrade FP mismatch error for shared libraries to a warning 2020-05-22 13:32:51 +09:30
gprof Replace "if (x) free (x)" with "free (x)", gprof 2020-05-21 10:45:33 +09:30
include ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
intl
ld ld: Add --warn-textrel and obsolete --warn-shared-textrel 2020-05-27 04:54:10 -07:00
libctf
libdecnumber
libiberty Sync config and libiberty with GCC 2020-05-12 18:37:03 -07:00
opcodes Fix extraction of signed constants in nios2 disassembler (again). 2020-05-26 23:23:03 -07:00
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		   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.