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When loading a corefile that has some inaccessible memory region(s), GDB complains about it: (gdb) core /my/corefile [New LWP 28468] Cannot access memory at address 0x355fc21148 Cannot access memory at address 0x355fc21140 (gdb) However, despite not seeing the message "Core was generated by...", it is still possible to inspect the corefile using regular GDB commands. The reason for that is because read_memory_unsigned_integer throws an exception when it cannot read the memory region, but solib_svr4_r_ldsomap was not catching it. The fix is to catch the exception and act accordingly. Tested on Fedora 20 x86_64, no regressions found. gdb/ChangeLog: 2015-03-31 Sergio Durigan Junior <sergiodj@redhat.com> * solib-svr4.c (solib_svr4_r_ldsomap): Catch possible exception by read_memory_unsigned_integer.
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.