Binutils with MCST patches
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John Baldwin 6d78332e77 Workaround a FreeBSD kernel bug resulting in spurious SIGTRAP events.
The ptrace command PT_LWPINFO to request detailed information about a
stopped thread can return stale signal information from an earlier
stop.  Events which are reporting an intercepted signal will always
report the correct information, but signal stops for some other events
such as system call enter/exit events might include stale siginfo from
an earlier signal.  In particular, if a thread reports a system call
entry or exit event after previously reporting a single-step or
breakpoint event via SIGTRAP, fbsd_handle_debug_trap believed the
system call event was the previous event and claimed it resulting in a
spurious SIGTRAP event.

True breakpoint and single-step events will never report another event
in the pl_flags member of struct ptrace_lwpinfo.  Use this to detect
stale siginfo by requiring pl_flags to have only the PL_FLAG_SI flag
and no other flags before treating a SIGTRAP as a single-step or
breakpoint trap.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_handle_debug_trap): Require pl.pl_flags to
	equal PL_FLAG_SI.
	(fbsd_nat_target::stopped_by_sw_breakpoint): Likewise.
2018-12-21 10:18:11 -08:00
bfd Automatic date update in version.in 2018-12-21 00:00:27 +00:00
binutils elf: Add PT_GNU_PROPERTY segment type 2018-12-14 04:55:34 -08:00
config Fix a typo in iconv.m4. 2018-11-09 16:08:10 +00:00
contrib
cpu
elfcpp
etc
gas x86: Properly handle PLT expression in directive 2018-12-19 12:22:12 -08:00
gdb Workaround a FreeBSD kernel bug resulting in spurious SIGTRAP events. 2018-12-21 10:18:11 -08:00
gold [GOLD] Tweak keep_text_section_prefix test for PowerPC64 ELFv1 2018-12-18 11:57:45 +10:30
gprof
include elf: Add PT_GNU_PROPERTY segment type 2018-12-14 04:55:34 -08:00
intl Fix a typo in iconv.m4. 2018-11-09 16:08:10 +00:00
ld x86: Properly handle PLT expression in directive 2018-12-19 12:22:12 -08:00
libdecnumber
libiberty Synchronize libiberty with gcc and add --no-recruse-limit option to tools that support name demangling. 2018-12-07 11:32:55 +00:00
opcodes Include bfd_stdint.h in bfd.h 2018-12-18 23:49:48 +10:30
readline
sim sim: Don't overwrite stored errno in sim_syscall_multi 2018-12-18 00:02:01 +00:00
texinfo
zlib
.cvsignore
.gitattributes
.gitignore
ar-lib
ChangeLog
compile
config-ml.in
config.guess
config.rpath
config.sub
configure
configure.ac
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
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
multilib.am
README
README-maintainer-mode
setup.com
src-release.sh
symlink-tree
test-driver
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.