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Jeff Law dbf98db6f0 Fix intermittent failures on the H8, particularly H8/SX tests.
The upstream GCC tester has  showed spurious execution failures on the
    H8 target for the H8/SX multilibs. I suspected memory corruption or an
    uninitialized variable early as the same binary would sometimes work and
    sometimes it got the wrong result. Worse yet, the point where the test
    determined it was getting the wrong result would change.

    Because it only happened on the H8/SX variant I was able to zero in on
    the "mova" support and the "short form" of those instructions in particular.

    As the code stands it checks if code->op3.type == 0 to try and identify cases
    where op3 wasn't filled in and thus we've got the short form of the mova
    instruction.

    But for the short-form of those instructions we never set any of the "op3"
    data structure. We get whatever was lying around -- it's usually zero and
     thus things usually work, but if the stale data was nonzero, then we'd
    fail to recognize the instruction as a short-form and fail to set up the
    various fields appropriately.

    I initially initialized the op3.type field to zero, but didn't like that
     because it was inconsistent with how other operands were initialized.
    Bringing consistency meant using -1 as the initializer value and adjusting
    the check for short form mova appropriately.

    I've had this in the upstream GCC tester for perhaps a year at this point
    and haven't seen any of the intermittent failures again.
2021-11-20 13:06:15 -05:00
bfd bfd: remove wrong comment in xcofflink.c 2021-11-20 18:01:36 +10:30
binutils elfedit: Align --[in|out]put-abiversion usage 2021-11-19 08:11:59 -08:00
config
contrib
cpu
elfcpp
etc
gas RISC-V: Support new .option arch directive. 2021-11-19 18:50:27 +08:00
gdb [gdb/build] Check if libsource-highlight is usable 2021-11-20 12:22:03 +01:00
gdbserver Remove config.cache in gdbserver's "distclean" 2021-11-16 09:13:24 -07:00
gdbsupport gdbsupport: fix array-view compilation with c++11 && _GLIBCXX_DEBUG 2021-11-20 07:36:47 -05:00
gnulib
gold -Waddress fixes for gold testsuite 2021-11-15 13:26:17 +10:30
gprof
include RISC-V: Support STO_RISCV_VARIANT_CC and DT_RISCV_VARIANT_CC. 2021-11-19 09:32:19 +08:00
intl Regenerate a couple of files 2021-11-15 12:20:12 +10:30
ld RISC-V: Support STO_RISCV_VARIANT_CC and DT_RISCV_VARIANT_CC. 2021-11-19 09:32:19 +08:00
libbacktrace sync libbacktrace from gcc 2021-11-14 18:07:50 +10:30
libctf doc/ctf-spec.texi: Remove "@validatemenus off" 2021-11-09 05:35:42 -08:00
libdecnumber
libiberty
opcodes Re: Don't compile some opcodes files when bfd is 32-bit only 2021-11-18 18:55:16 +10:30
readline
sim Fix intermittent failures on the H8, particularly H8/SX tests. 2021-11-20 13:06:15 -05:00
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Makefile.def Import Makefile.def from gcc 2021-11-12 19:02:12 +10:30
Makefile.in Sync Makefile.tpl with GCC 2021-11-13 09:04:03 -08:00
Makefile.tpl Sync Makefile.tpl with GCC 2021-11-13 09:04:03 -08:00
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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.