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Patrick Palka d64e57faa8 Fix the processing of Meta-key commands in TUI
This patch fixes the annoying bug where key sequences such as Alt_F or
Alt_B (go forward or backwards by a word) do not behave promptly in TUI.
You have to press a third key in order for the key sequence to register.

This is mostly ncurses' fault.  Calling wgetch() normally causes ncurses
to read only a single key from stdin.  However if the key read is the
start-sequence key (^[ a.k.a. ESC) then wgetch() reads TWO keys from
stdin, storing the 2nd key into an internal FIFO buffer and returning
the start-sequence key.  The extraneous read of the 2nd key makes us
miss its corresponding stdin event, so the event loop blocks until a
third key is pressed.  This explains why such key sequences do not
behave promptly in TUI.

To fix this issue, we must somehow compensate for the missed stdin event
corresponding to the 2nd byte of a key sequence.  This patch achieves
this by hacking  up the stdin event handler to conditionally execute the
readline callback multiple times in a row.  This is done via a new
global variable, call_stdin_event_handler_again_p, which is set from
tui_getc() when we receive a start-sequence key and notice extra pending
input in the ncurses buffer.

Tested on x86_64-unknown-linux-gnu.

gdb/ChangeLog:

	* event-top.h (call_stdin_event_handler_again_p): Declare.
	* event-top.c (call_stdin_event_handler_again_p): Define.
	(stdin_event_handler): Use it.
	* tui/tui-io.c (tui_getc): Prepare to call the stdin event
	handler again if there is pending input following a
	start sequence.
2014-11-23 14:04:09 +04:00
bfd Automatic date update in version.in 2014-11-23 00:00:09 +00:00
binutils Fixes for memory access violations exposed by fuzzinf various binaries. 2014-11-21 21:44:04 +00:00
config
cpu
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gas Calculate ARM arch attribute after relaxation 2014-11-21 11:54:39 +08:00
gdb Fix the processing of Meta-key commands in TUI 2014-11-23 14:04:09 +04:00
gold Check PC-relative offset overflow in PLT entry 2014-11-21 11:26:56 -08:00
gprof
include Merge include/* files from GCC commit 69a2f316d3. 2014-11-21 22:47:32 +00:00
intl
ld Add function and function pointer tests for i386 2014-11-21 08:45:02 -08:00
libdecnumber
libiberty
opcodes
readline
sim sim/ppc/*: Change immediatly to immediately 2014-11-23 07:11:39 +04:00
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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.