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Yao Qi 91256dc2fb Show new created display
When I run refactored unavailable.exp, I find
command display behaves a little different on live inferior and on
examining traceframes.  In live inferior, when command "display argc"
is typed, the value of "argc" is shown.

(gdb) display argc
1: argc = 1 '\001'

however, on tfile target, when command "display argc" is typed, the
value of "argc" is not shown.

(gdb) tfind
Found trace frame 0, tracepoint 1
    at ../../../../git/gdb/testsuite/gdb.trace/unavailable.cc:198
198       i =  (int) argc + argi + argf + argd + argstruct.memberi + argarray[1];
(gdb) display argc

I also notice that on "core" target, the value of "argc" isn't shown
either.  This difference is caused by the code below in printcmd.c:display_command,

      if (from_tty && target_has_execution)
        do_one_display (new);

Looks the value of each display is shown if the target has execution.
Source code archaeology doesn't tell much about this requirement.
However, if we type command "display" then on "core" or "tfile"
target, the value of "argc" is still displayed,

for "core" target,
(gdb) display argc
(gdb) display
1: argc = 1 '\001'

for "tfile" target,
(gdb) display argc
(gdb) display
1: argc = <unavailable>

I feel that it is not necessary to have such "target has execution"
requirement to show the value of new created display.  Auto-display is
a feature to show the value of expression frequently, has nothing to
do with whether target has execution or not.  On the other hand, GDB
has the requirement for new created display, but command "display" can
still show them, this is an inconsistency, which should be fixed.

This patch is to remove the checking to target_has_execution from the
condition.

gdb:

2014-05-05  Yao Qi  <yao@codesourcery.com>

	* printcmd.c (display_command): Remove the check to
	target_has_execution.
2014-05-05 11:51:53 +08:00
bfd daily update 2014-05-05 09:30:36 +09:30
binutils bfd target vector rationalisation 2014-05-02 20:09:40 +09:30
config strip off +x bits on non-executable/script files 2013-12-07 02:03:03 -05:00
cpu Remove support for the (deprecated) openrisc and or32 configurations and replace 2014-04-22 15:57:47 +01:00
elfcpp Remove support for the (deprecated) openrisc and or32 configurations and replace 2014-04-22 15:57:47 +01:00
etc
gas Move fwait test with prefix to prefix.s 2014-05-02 08:39:09 -07:00
gdb Show new created display 2014-05-05 11:51:53 +08:00
gold Fix handling of __ehdr_start when it cannot be defined. 2014-05-02 16:33:43 -07:00
gprof autoreconf 2014-03-12 15:02:00 +10:30
include include/opcode/ 2014-05-01 21:39:48 +01:00
intl
ld bfd target vector rationalisation 2014-05-02 20:09:40 +09:30
libdecnumber merge from gcc 2013-10-16 00:29:48 +00:00
libiberty [PATCH] include * ansidecl.h (ANSI_PROTOTYPES, PTRCONST, LONG_DOUBLE, PARAMS) (VPARAMS, VA_START, VA_OPEN, VA_CLOSE, VA_FIXEDARG, CONST) (VOLATILE, SIGNED, PROTO, EXFUN, DEFUN, DEFUN_VOID, AND, DOTS) (NOARGS): Don't define. * libiberty.h (expandargv, writeargv): Don't use PARAMS. libiberty * _doprint.c (checkit): Use stdarg, not VA_* macros. * asprintf.c (asprintf): Use stdarg, not VA_* macros. * concat.c (concat_length, concat_copy, concat_copy2, concat) (reconcat): Use stdarg, not VA_* macros. * snprintf.c (snprintf): Use stdarg, not VA_* macros. * vasprintf.c (checkit): Use stdarg, not VA_* macros. * vsnprintf.c (checkit): Use stdarg, not VA_* macros. 2014-01-21 08:52:09 -07:00
opcodes Use sigsetjmp/siglongjmp in opcodes 2014-05-02 08:27:16 -07:00
readline * readline.c (bind_arrow_keys_internal): 2013-09-24 14:49:48 +00:00
sim Add support for two new moxie sign-extension instructions 2014-04-02 23:58:01 -04:00
texinfo
.cvsignore
.gitignore Sync the root .gitignore file with GCC's. 2013-01-11 15:17:35 +00:00
ChangeLog * config.sub, config.guess: Import from upstream. 2014-05-01 21:49:01 +01:00
compile
config-ml.in
config.guess * config.sub, config.guess: Import from upstream. 2014-05-01 21:49:01 +01:00
config.rpath
config.sub * config.sub, config.guess: Import from upstream. 2014-05-01 21:49:01 +01:00
configure * configure.ac: Add user-friendly check for native x86_64-linux multilibs. * configure: Regenerate. 2013-12-16 13:42:54 -07:00
configure.ac * configure.ac: Add user-friendly check for native x86_64-linux multilibs. * configure: Regenerate. 2013-12-16 13:42:54 -07:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS 2013-01-07 Jeff Johnston <jjohnstn@redhat.com> 2013-01-07 21:39:26 +00:00
COPYING.NEWLIB 2013-10-01 Jeff Johnston <jjohnstn@redhat.com> 2013-10-01 18:14:04 +00:00
depcomp
djunpack.bat
install-sh
libtool.m4 * libtool.m4 (_LT_ENABLE_LOCK <ld -m flags>): Remove non-canonical 2013-09-20 09:51:25 +00:00
lt~obsolete.m4
ltgcc.m4
ltmain.sh PR target/59788 2014-02-06 11:01:57 +01:00
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS MAINTAINERS: clarify policy with config/ (and other top level files) 2012-05-12 03:10:17 +00:00
Makefile.def This fixes PR bootstrap/60620: 2014-04-04 22:54:42 +02:00
Makefile.in This fixes PR bootstrap/60620: 2014-04-04 22:54:42 +02:00
Makefile.tpl * Makefile.tpl: Fix typo. * Makefile.in: Regenerate. 2013-11-08 11:11:42 -07:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
README
README-maintainer-mode
setup.com
src-release * src-release (do-proto-toplevel): Support subdir-path-prefixed 2013-10-15 20:45:52 +00:00
symlink-tree
ylwrap

		   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

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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.