No description
Find a file
Luis Machado 3e87153251 MIPS bit field failures in gdb.base/store.exp
On MIPS64 little endian, attempting an assignment to a bit field
that lives in a register yields the wrong result. It just corrupts
the data in the register depending on the specific position of the
bit field inside the structure.

FAIL: gdb.base/store.exp: f_1.j
FAIL: gdb.base/store.exp: f_1.k
FAIL: gdb.base/store.exp: F_1.i
FAIL: gdb.base/store.exp: F_1.j
FAIL: gdb.base/store.exp: F_1.k
FAIL: gdb.base/store.exp: f_2.j
FAIL: gdb.base/store.exp: f_2.k
FAIL: gdb.base/store.exp: F_2.i
FAIL: gdb.base/store.exp: F_2.j
FAIL: gdb.base/store.exp: F_2.k
FAIL: gdb.base/store.exp: f_3.j
FAIL: gdb.base/store.exp: f_3.k
FAIL: gdb.base/store.exp: F_3.i
FAIL: gdb.base/store.exp: F_3.j
FAIL: gdb.base/store.exp: F_3.k
FAIL: gdb.base/store.exp: f_4.j
FAIL: gdb.base/store.exp: f_4.k
FAIL: gdb.base/store.exp: F_4.i
FAIL: gdb.base/store.exp: F_4.j
FAIL: gdb.base/store.exp: F_4.k

                === gdb Summary ===

Now, GDB knows how to do bit field assignment properly, but MIPS is
one of those architectures that uses a hook for the register-to-value
conversion. Although we can properly tell when the type being passed
is a structure or union, we cannot tell when it is a bit field,
because the bit field data lives in a value structure.  Such data
only lives in a "type" structure when the parent structure is being
referenced, thus you can collect them from the flds_bnds members.

A bit field type structure looks pretty much the same as any other
primitive type like int or char, so we can't distinguish them.
Forcing more fields into the type structure wouldn't help much,
because the type structs are shared.

2014-10-03  Luis Machado  <lgustavo@codesourcery.com>

	* valops.c (value_assign): Check for bit field assignments
	before calling architecture-specific register value
	conversion functions.
2014-10-03 08:21:33 -03:00
bfd daily update 2014-10-03 10:45:36 +09:30
binutils Readelf: Handle forward references to CIEs 2014-09-22 18:57:16 +09:30
config Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
cpu or1k: add missing l.msync, l.psync and l.psync instructions. 2014-07-20 20:26:09 +03:00
elfcpp Add tls support to gold aarch64 backend. 2014-09-17 14:24:10 -07:00
etc PR external/{16327,16328}: Remove etc/configure.texi and etc/standards.texi. 2014-06-27 11:33:25 +02:00
gas 2014-09-29 Terry Guo <terry.guo@arm.com> 2014-09-29 10:12:10 +08:00
gdb MIPS bit field failures in gdb.base/store.exp 2014-10-03 08:21:33 -03:00
gold Fix error from previous patch where tosize and tovalue were redefined 2014-09-30 16:06:50 -07:00
gprof Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
include NDS32: Code refactoring of relaxation. 2014-09-16 13:08:00 +08:00
intl merge from gcc 2010-09-27 21:01:18 +00:00
ld Find lto plugin when using gcc-5.0 2014-09-22 19:04:48 +09:30
libdecnumber PR c/59871 c/ * c-typeck.c (build_compound_expr): Warn even for right-hand operand of a comma expression. (emit_side_effect_warnings): Likewise. libdecnumber/ * decNumberLocal.h (UBFROMUS, UBFROMUI): Remove last argument. testsuite/ * gcc.dg/20020220-2.c: Adjust dg-warning message. * gcc.dg/pr59871.c: New test. 2014-05-08 10:18:28 -06:00
libiberty Delete temporary string within demangler even in failure cases. 2014-06-11 11:41:51 +01:00
opcodes Ignore MOD field for control/debug register move 2014-09-22 09:38:53 -07:00
readline readline/search.c: Remove useless parameter '0' for rl_message() 2014-09-22 09:52:06 -04:00
sim Shadow SIM's debug_printf function 2014-08-28 11:59:09 +01:00
texinfo * texinfo/texinfo.tex: Update to version 2009-03-28.05. 2009-04-21 12:36:46 +00:00
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore Sync the root .gitignore file with GCC's. 2013-01-11 15:17:35 +00:00
ChangeLog Add mips*-img-elf* target triple. 2014-09-12 14:25:15 +01:00
compile Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
config-ml.in * config-ml.in: Don't handle arc-*-elf*. 2011-03-22 20:01:13 +00:00
config.guess * config.sub, config.guess: Import from upstream. 2014-05-01 21:49:01 +01:00
config.rpath Remove freebsd1 from libtool.m4 macros and config.rpath. 2011-02-13 21:00:14 +00:00
config.sub Import config.sub from upstream config repo 2014-07-29 07:04:52 -04:00
configure Add mips*-img-elf* target triple. 2014-09-12 14:25:15 +01:00
configure.ac Add mips*-img-elf* target triple. 2014-09-12 14:25:15 +01:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS 2013-01-07 Jeff Johnston <jjohnstn@redhat.com> 2013-01-07 21:39:26 +00:00
COPYING.NEWLIB 2013-10-01 Jeff Johnston <jjohnstn@redhat.com> 2013-10-01 18:14:04 +00:00
COPYING3
COPYING3.LIB
depcomp Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
djunpack.bat * djunpack.bat: Use ".." quoting in Sed command, for the sake of 2009-03-27 13:37:09 +00:00
install-sh Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
libtool.m4 * libtool.m4 (_LT_ENABLE_LOCK <ld -m flags>): Remove non-canonical 2013-09-20 09:51:25 +00:00
ltgcc.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltmain.sh PR target/59788 2014-02-06 11:01:57 +01:00
ltoptions.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
ltsugar.m4 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
ltversion.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
lt~obsolete.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
MAINTAINERS MAINTAINERS: clarify policy with config/ (and other top level files) 2012-05-12 03:10:17 +00:00
Makefile.def PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.in PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.tpl PR bootstrap/58572 * Makefile.tpl (POSTSTAGE1_CXX_EXPORT): Use -isystem instead of -I for libstdc++-v3 includes if $(LEAN). * Makefile.in: Regenerated. 2014-05-08 10:18:29 -06:00
makefile.vms
missing Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
mkdep
mkinstalldirs Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00
move-if-change Import move-if-change script from gnulib. 2011-02-12 15:47:02 +00:00
README
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:11 +00:00
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release.sh src-release.sh: Convert src-release to a shell script 2014-08-27 13:50:06 +01:00
symlink-tree
ylwrap Update automake-provided files in the toplevel. 2009-08-22 11:48:33 +00:00

		   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.