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The comment on the gdbarch_displaced_step_fixup gdbarch method indicates that this method is optional and that GDB will perform some default if this method is not supplied. As such we define a predicate gdbarch_displaced_step_fixup_p. It may have been true at one point that the fixup method was optional, but it is no longer true. If this method is not defined and GDB tries to complete a displaced step, then GDB is going to crash. Additionally the gdbarch_displaced_step_fixup_p predicate is not used anywhere in GDB. In this commit I have removed the gdbarch_displaced_step_fixup_p predicate, and I have updated the validation check for the gdbarch_displaced_step_fixup method; if the gdbarch_displaced_step_copy_insn method is defined then the fixup method must also be defined. I believe I've manually checked all the current places where gdbarch_displaced_step_copy_insn is defined and they all also define the fixup method, so this change should cause no problems for anyone. There should be no user visible changes after this commit. Approved-By: Pedro Alves <pedro@palves.net>
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.