Binutils with MCST patches
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Tom Tromey c9317f214b Convert Rust to use discriminated unions
A Rust enum is, essentially, a discriminated union.  Currently the
Rust language support handles Rust enums locally, in rust-lang.c.
However, because I am changing the Rust compiler to use
DW_TAG_variant* to represent enums, it seemed better to have a single
internal representation for Rust enums in gdb.

This patch implements this idea by moving the current Rust enum
handling code to dwarf2read.  This allows the simplification of some
parts of rust-lang.c as well.

2018-02-26  Tom Tromey  <tom@tromey.com>

	* rust-lang.h (rust_last_path_segment): Declare.
	* rust-lang.c (rust_last_path_segment): Now public.  Change
	contract.
	(struct disr_info): Remove.
	(RUST_ENUM_PREFIX, RUST_ENCODED_ENUM_REAL)
	(RUST_ENCODED_ENUM_HIDDEN, rust_union_is_untagged)
	(rust_get_disr_info, rust_tuple_variant_type_p): Remove.
	(rust_enum_p, rust_enum_variant): New function.
	(rust_underscore_fields): Remove "offset" parameter.
	(rust_print_enum): New function.
	(rust_val_print) <TYPE_CODE_UNION>: Remove enum code.
	<TYPE_CODE_STRUCT>: Call rust_print_enum when appropriate.
	(rust_print_struct_def): Add "for_rust_enum" parameter.  Handle
	enums.
	(rust_internal_print_type): New function, from rust_print_type.
	Remove enum code.
	(rust_print_type): Call rust_internal_print_type.
	(rust_evaluate_subexp) <STRUCTOP_ANONYMOUS, STRUCTOP_STRUCT>:
	Update enum handling.
	* dwarf2read.c (struct dwarf2_cu) <rust_unions>: New field.
	(rust_fully_qualify, alloc_discriminant_info, quirk_rust_enum)
	(rust_union_quirks): New functions.
	(process_full_comp_unit, process_full_type_unit): Call
	rust_union_quirks.
	(process_structure_scope): Update rust_unions if necessary.

2018-02-26  Tom Tromey  <tom@tromey.com>

	* gdb.rust/simple.exp: Accept more possible results in enum test.
2018-02-26 09:21:08 -07:00
bfd Segfault on phdrs allocated but not created 2018-02-26 10:51:12 +10:30
binutils BFD messages 2018-02-26 09:33:15 +10:30
config Fix PR ld/22263 on SPARC. 2018-02-06 18:17:39 +01:00
cpu Add note about 2.30 branch creation to changelogs 2018-01-13 13:26:38 +00:00
elfcpp Add note about 2.30 branch creation to changelogs 2018-01-13 13:26:38 +00:00
etc Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
gas GAS/doc: Clean up .dc' and .ds' directive descriptions 2018-02-26 16:11:03 +00:00
gdb Convert Rust to use discriminated unions 2018-02-26 09:21:08 -07:00
gold New plugin interface to get list of symbols wrapped with --wrap option. 2018-02-22 13:56:46 -08:00
gprof Updated Brazillian portuguese and Russian translation 2018-02-05 13:09:15 +00:00
include New plugin interface to get list of symbols wrapped with --wrap option. 2018-02-22 13:56:46 -08:00
intl Require ngettext in test of system gettext implementation 2017-11-07 15:56:44 +10:30
ld ld error/warning messages 2018-02-26 10:51:12 +10:30
libdecnumber
libiberty Avoid compilation warning in libiberty/simple-object-xcoff.c 2018-01-27 18:25:06 +02:00
opcodes crx string overflow warning 2018-02-26 10:51:12 +10:30
readline
sim MAINTAINERS: Update my company e-mail address 2018-01-22 15:39:18 +00:00
texinfo
zlib
.cvsignore
.gitattributes
.gitignore
ChangeLog WebAssembly: Disable subdirectory configuration for unsupported LD 2018-02-13 12:56:29 +00:00
compile
config-ml.in Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.guess Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.rpath
config.sub Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
configure WebAssembly: Disable subdirectory configuration for unsupported LD 2018-02-13 12:56:29 +00:00
configure.ac WebAssembly: Disable subdirectory configuration for unsupported LD 2018-02-13 12:56:29 +00:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS Update the address of the FSF in the copyright notice of files which were using the old address. 2017-12-14 12:48:55 +00:00
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def
Makefile.in
Makefile.tpl
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
README
README-maintainer-mode
setup.com
src-release.sh Improve junk file removal in source tarball creation script. 2018-01-30 17:48:24 +00:00
symlink-tree
ylwrap

		   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.