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My all-stop-on-top-of-non-stop series manages to trip on a bug in the linux-nat.c backend while running the testsuite. If a thread is discovered while threads are being momentarily paused (without the core's intervention), the thread ends up stuck in THREAD_STOPPED state, even though from the user's perspective, the thread is running even while it is paused. From inspection, in the current sources, this can happen if we call stop_and_resume_callback, though there's no way to test that with current Linux kernels. (While trying to come up with test to exercise this, I stumbled on: https://sourceware.org/ml/gdb-patches/2015-03/msg00850.html ... which does include a non-trivial test, so I think I can still claim I come out net positive. :-) ) Tested on x86_64 Fedora 20. gdb/ChangeLog: 2015-04-01 Pedro Alves <palves@redhat.com> * linux-nat.c (linux_handle_extended_wait): Always call set_running.
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.