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ps_get_thread_area receives as a parameter the lwpid it must work on. It then calls is_64bit_tdesc, which uses the current_thread as the thread to work on. However, it is not said that both are the same. This became a problem when working in a following patch that makes find_one_thread switch to a process but to no thread (current_thread == nullptr). When libthread_db needed to get the thread area, is_64bit_tdesc would try to get the regcache of a nullptr thread. Fix that by making is_64bit_tdesc accept the thread to work on as a parameter. Find the right thread from the context, when possible (when we know the lwpid to work on). Otherwise, pass "current_thread", to retain the existing behavior. Reviewed-By: Andrew Burgess <aburgess@redhat.com> Change-Id: I44394d6be92392fa28de71982fd04517ce8a3007
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.