This commit was inspired by this mailing list patch: https://sourceware.org/pipermail/gdb-patches/2021-January/174713.html Currently, calling tui_layout_window::apply will add the window from the layout object to the global tui_windows list. Unfortunately, when the user runs the 'winheight' command, this calls tui_adjust_window_height, which calls the tui_layout_base::adjust_size function, which can then call tui_layout_base::apply. The consequence of this is that when the user does 'winheight' duplicate copies of a window can be added to the global tui_windows list. The original patch fixed this by changing the apply function to only update the global list some of the time. This patch takes a different approach. The apply function no longer updates the global tui_windows list. Instead a new virtual function is added to tui_layout_base which is used to gather all the currently applied windows into a vector. Finally tui_apply_current_layout is updated to make use of this new function to update the tui_windows list. The benefits I see in this approach are, (a) the apply function now no longer touches global state, this solves the immediate problem, and (b) now that tui_windows is updated directly in the function tui_apply_current_layout, we can drop the saved_tui_windows global. gdb/ChangeLog: * tui-layout.c (saved_tui_windows): Delete. (tui_apply_current_layout): Don't make use of saved_tui_windows, call new get_windows member function instead. (tui_get_window_by_name): Check in tui_windows. (tui_layout_window::apply): Don't add to tui_windows. * tui-layout.h (tui_layout_base::get_windows): New member function. (tui_layout_window::get_windows): Likewise. (tui_layout_split::get_windows): Likewise. gdb/testsuite/ChangeLog: * gdb.tui/winheight.exp: Add more tests. |
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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.