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Lancelot SIX 003aae0762 gdb: Copy inferior properties in clone-inferior
This commit ensures that the following settings are cloned from one
inferior to the new one when processing the clone-inferior command:
  - inferior-tty
  - environment variables
  - cwd
  - args

Some of those parameters can be passed as command line arguments to GDB
(-args and -tty), so one could expect the clone-inferior to respect
those flags.  The following debugging session illustrates that:

    gdb -nx -quiet -batch \
         -ex "show args" \
         -ex "show inferior-tty" \
         -ex "clone-inferior" \
         -ex "inferior 2" \
         -ex "show args" \
         -ex "show inferior-tty" \
         -tty=/some/tty \
         -args echo foo bar
    Argument list to give program being debugged when it is started is "foo bar".
    Terminal for future runs of program being debugged is "/some/tty".
    [New inferior 2]
    Added inferior 2.
    [Switching to inferior 2 [<null>] (/bin/echo)]
    Argument list to give program being debugged when it is started is "".
    Terminal for future runs of program being debugged is "".

The other properties this commit copies on clone (i.e. CWD and the
environment variables) are included since they are related (in the sense
that they influence the runtime behavior of the program) even if they
cannot be directly set using command line switches.

There is a chance that this patch changes existing user workflow.  I
think that this change is mostly harmless.  If users want to start a new
inferior based on an existing one, they probably already propagate those
settings to the new inferior in some way.

Tested on x86_64-linux.

Change-Id: I3b1f28b662f246228b37bb24c2ea1481567b363d
2021-12-29 03:27:38 -05:00
bfd Automatic date update in version.in 2021-12-29 00:00:13 +00:00
binutils Typo fixes in binutils doc 2021-12-21 16:58:57 +10:30
config
contrib
cpu
elfcpp [GOLD] PowerPC64 @notoc in non-power10 code 2021-12-11 14:52:36 +10:30
etc
gas gas reloc sorting 2021-12-28 23:00:01 +10:30
gdb gdb: Copy inferior properties in clone-inferior 2021-12-29 03:27:38 -05:00
gdbserver New --enable-threading configure option to control use of threads in GDB/GDBserver 2021-12-15 17:00:00 -03:00
gdbsupport New --enable-threading configure option to control use of threads in GDB/GDBserver 2021-12-15 17:00:00 -03:00
gnulib
gold [GOLD] PowerPC64 @notoc in non-power10 code 2021-12-11 14:52:36 +10:30
gprof gprof: enable silent build rules 2021-11-29 20:28:29 -05:00
include RISC-V: Hypervisor ext: support Privileged Spec 1.12 2021-12-24 15:17:52 +08:00
intl
ld ld: Fix testcase errors due to -shared not support. 2021-12-28 12:14:32 +08:00
libbacktrace
libctf libctf: workaround automake bug with conditional info pages 2021-12-02 23:26:18 -05:00
libdecnumber
libiberty
opcodes RISC-V: Hypervisor ext: support Privileged Spec 1.12 2021-12-24 15:17:52 +08:00
readline
sim sim: mips/or1k: drop redundant arg to bitsize macro 2021-12-16 02:36:10 -05:00
texinfo
zlib zlib: enable silent build rules 2021-11-29 20:28:29 -05:00
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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.