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Andrew Burgess dbbb1059e6 gdb: Initial baremetal riscv support
This commit introduces basic support for baremetal RiscV as a GDB
target.  This target is currently only tested against the RiscV software
simulator, which is not included as part of this commit.  The target has
been tested against the following RiscV variants: rv32im, rv32imc,
rv32imf, rv32imfc, rv64im, rv64imc, rv64imfd, rv64imfdc.

Across these variants we pass on average 34858 tests, and fail 272
tests, which is ~0.8%.

The RiscV has a feature of its ABI where structures with a single
floating point field, a single complex float field, or one float and
one integer field are treated differently for argument passing.  The
new test gdb.base/infcall-nested-structs.exp is added to cover this
feature.  As passing these structures should work on all targets then
I've made the test as a generic one, even though, for most targets,
there's probably nothing special about any of these cases.

gdb/ChangeLog:

	* Makefile.in (ALL_TARGET_OBS): Add riscv-tdep.o
	(HFILES_NO_SRCDIR): Add riscv-tdep.h.
	(ALLDEPFILES): Add riscv-tdep.c
	* configure.tgt: Add riscv support.
	* riscv-tdep.c: New file.
	* riscv-tdep.h: New file.
	* NEWS: Mention new target.
	* MAINTAINERS: Add entry for riscv.

gdb/testsuite/ChangeLog:

	* gdb.base/infcall-nested-structs.exp: New file.
	* gdb.base/infcall-nested-structs.c: New file.
	* gdb.base/float.exp: Add riscv support.
2018-03-06 09:59:09 +00:00
bfd Automatic date update in version.in 2018-03-06 00:00:25 +00:00
binutils Use binary search on dynamic relocations 2018-03-05 03:45:03 -08:00
config Fix PR ld/22263 on SPARC. 2018-02-06 18:17:39 +01:00
cpu opcodes error messages 2018-03-03 11:34:26 +10:30
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 [ARM] Fix NULL dereference of march_ext_opt 2018-03-02 10:47:14 +00:00
gdb gdb: Initial baremetal riscv support 2018-03-06 09:59:09 +00:00
gold New plugin interface to get list of symbols wrapped with --wrap option. 2018-02-22 13:56:46 -08:00
gprof Add missing translations to ALL_LINGUAS 2018-03-01 09:17:02 +10:30
include [ARM] Remove ARM_FEATURE_COPY macro 2018-02-27 16:40:45 +00:00
intl Require ngettext in test of system gettext implementation 2017-11-07 15:56:44 +10:30
ld PR ld/21900: MIPS: Fix relocation processing with undefined symbols 2018-03-03 15:49:21 +00:00
libdecnumber
libiberty Avoid compilation warning in libiberty/simple-object-xcoff.c 2018-01-27 18:25:06 +02:00
opcodes opcodes error messages 2018-03-03 11:34:26 +10:30
readline Avoid MinGW compilation warning in readline/input.c 2017-05-19 11:05:59 +03:00
sim MAINTAINERS: Update my company e-mail address 2018-01-22 15:39:18 +00:00
texinfo
zlib Sync ZLIB with FSF GCC sources, bringing in version 1.2.11. 2017-02-20 12:52:22 +00:00
.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 Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
Makefile.in Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
Makefile.tpl Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
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.