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Alan Modra c930281005 PR26437, PR26438 UBSAN: tc-cr16.c left shifts and overflows
Always use unsigned constants in expressions generating masks.  The
following trys mightily to avoid UB (but hits it anyway with bits=32
and 0x7fffffff << 1), and worse, for 32-bit int, 64-bit long, bits=32
doesn't generate 0xffffffff.
    max = ((((1 << (bits - 1)) - 1) << 1) | 1);
results in -1, or max = 0xffffffffffffffff.

This patch fixes that problem, a possible shift exponent of -1U,
removes some dead code, and makes general tidies.

	PR26437
	PR26438
	* config/tc-cr16.c: Include limits.h, formatting.
	(CR16_PRINT): Wrap params in parentheses.  Remove parens from uses
	throughout file.
	(getconstant): Handle zero nbits.
	(print_operand): Simplify handling of index regs.
	(check_range): Use int32_t variables.  Correct range checks.
2020-08-30 20:49:18 +09:30
bfd PR26435, PR26436 UBSAN: elf32-cr16.c:928 left shift 2020-08-30 19:37:15 +09:30
binutils Fix a bogus error message from the DWARF LEB129 decoder when trying to read a signed LEB128 value containing the largest possible signed negative integer value. 2020-08-28 16:04:49 +01:00
config
contrib
cpu bpf: add xBPF ISA 2020-08-26 15:39:00 +02:00
elfcpp CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
etc
gas PR26437, PR26438 UBSAN: tc-cr16.c left shifts and overflows 2020-08-30 20:49:18 +09:30
gdb Adjust "maint info program-spaces" to per-inferior target stack 2020-08-29 00:55:58 +01:00
gdbserver gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gdbsupport gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gnulib Update gnulib to current trunk 2020-08-26 15:37:28 -07:00
gold PowerPC TPREL_HA/LO optimisation 2020-08-24 21:15:06 +09:30
gprof
include CSKY: Support attribute section. 2020-08-28 17:23:24 +08:00
intl
ld MSP430: Fix alignment of __*_array_start symbols in default linker script 2020-08-28 14:01:10 +01:00
libctf libctf, binutils, include, ld: gettextize and improve error handling 2020-08-27 13:15:43 +01:00
libdecnumber
libiberty
opcodes PR26446 UBSAN: tc-csky.c:2618,4022 index out of bounds 2020-08-29 13:17:57 +09:30
readline
sim sim/bfin: include config/pkg.m4 in configure.ac 2020-08-21 11:55:08 -04:00
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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.