binutils-gdb/gdbserver
Andrew Burgess 9f1528a1bd Merge changes from GCC for the config/ directory
GCC's config/ChangeLog since the last time this merge was done
(in the binutils-gdb commit 0b4d000cc4) is included at the
end of this commit message.

It is worth noting that the binutils-gdb commit 301a9420d9
added the file config/debuginfod.m4 which is not present in GCC's
config/ directory.  This file is preserved, unmodified, after this
commit.

In order to regenerate all of the configure files, I configured with
--enable-maintainer-mode, and built the 'all' target.  I then did the
same thing on a source tree without this patch, and only committed
those files that changed when this patch was added.

GCC's config/ChangeLog entries:

  2020-02-12  Sandra Loosemore  <sandra@codesourcery.com>

  	PR libstdc++/79193
  	PR libstdc++/88999

  	* no-executables.m4: Use a non-empty program to test for linker
  	support.

  2020-02-01  Andrew Burgess  <andrew.burgess@embecosm.com>

  	* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Update shell syntax.

  2020-01-27  Andrew Burgess  <andrew.burgess@embecosm.com>

  	* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Add new
  	--with-libXXX-type=... option.  Use this to guide the selection of
  	either a shared library or a static library.

  2020-01-24  Maciej W. Rozycki  <macro@wdc.com>

  	* toolexeclibdir.m4: New file.

  2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

  	* futex.m4: Handle *-uclinux*.
  	* tls.m4 (GCC_CHECK_TLS): Likewise.

  2019-09-06  Florian Weimer  <fweimer@redhat.com>

  	* futex.m4 (GCC_LINUX_FUTEX): Include <unistd.h> for the syscall
  	function.

  2019-07-08  Richard Sandiford  <richard.sandiford@arm.com>

  	* bootstrap-Og.mk: New file.

  2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
              Andrew Stubbs  <ams@codesourcery.com>

  	* gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn.

  2019-05-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

  	* ax_count_cpus.m4: New file.

  2019-05-02  Richard Biener  <rguenther@suse.de>

  	PR bootstrap/85574
  	* bootstrap-lto.mk (extra-compare): Set to gcc/lto1$(exeext).

  2019-04-16  Martin Liska  <mliska@suse.cz>

  	* bootstrap-lto-lean.mk: Filter out -flto in STAGEtrain_CFLAGS.

  2019-04-09  Martin Liska  <mliska@suse.cz>

  	* bootstrap-lto-lean.mk: New file.

  2019-03-02  Johannes Pfau  <johannespfau@gmail.com>

  	* mh-mingw: Also set __USE_MINGW_ACCESS flag for C++ code.

  2018-10-31  Joseph Myers  <joseph@codesourcery.com>

  	PR bootstrap/82856
  	* math.m4, tls.m4: Use AC_LANG_SOURCE.

  	Merge from binutils-gdb:
  	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

  	* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.

config/ChangeLog:

	* ax_count_cpus.m4: New file, backported from GCC.
	* bootstrap-Og.mk: New file, backported from GCC.
	* bootstrap-lto-lean.mk: New file, backported from GCC.
	* bootstrap-lto.mk: Changes backported from GCC.
	* futex.m4: Changes backported from GCC.
	* gthr.m4: Changes backported from GCC.
	* lib-link.m4: Changes backported from GCC.
	* mh-mingw: Changes backported from GCC.
	* no-executables.m4: Changes backported from GCC.
	* tls.m4: Changes backported from GCC.
	* toolexeclibdir.m4: New file, backported from GCC.

binutils/ChangeLog:

	* configure: Regenerate.

gdb/ChangeLog:

	* configure: Regenerate.

gdbserver/ChangeLog:

	* configure: Regenerate.

gdbsupport/ChangeLog:

	* configure: Regenerate.

intl/ChangeLog:

	* configure: Regenerate.

libiberty/ChangeLog:

	* configure: Regenerate.

zlib/ChangeLog.bin-gdb:

	* configure: Regenerate.
2020-02-19 17:51:24 +00:00
..
.gitignore
acinclude.m4 Change gdbserver to use existing gnulib and libiberty 2020-02-14 14:34:20 -07:00
aclocal.m4
ax.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
ax.h
ChangeLog Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
config.in
configure Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
configure.ac Change gdbserver to use existing gnulib and libiberty 2020-02-14 14:34:20 -07:00
configure.srv gdbserver: Add RISC-V/Linux support 2020-02-19 01:24:37 +00:00
debug.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
debug.h
dll.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
dll.h
event-loop.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
event-loop.h
fork-child.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
gdb_proc_service.h
gdbreplay.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
gdbthread.h
hostio-errno.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
hostio.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
hostio.h
i387-fp.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
i387-fp.h
inferiors.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
inferiors.h
linux-aarch32-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-aarch32-low.h
linux-aarch32-tdesc.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-aarch32-tdesc.h
linux-aarch64-ipa.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-aarch64-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-aarch64-tdesc.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-aarch64-tdesc.h
linux-amd64-ipa.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-arm-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-arm-tdesc.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-arm-tdesc.h
linux-bfin-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-cris-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-crisv32-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-i386-ipa.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-ia64-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-low.h
linux-m32r-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-m68k-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-mips-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-nios2-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-ppc-ipa.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-ppc-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-ppc-tdesc-init.h
linux-riscv-low.cc gdbserver: Add RISC-V/Linux support 2020-02-19 01:24:37 +00:00
linux-s390-ipa.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-s390-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-s390-tdesc.h
linux-sh-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-sparc-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-tic6x-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-tile-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-x86-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-x86-tdesc.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
linux-x86-tdesc.h
linux-xtensa-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
lynx-i386-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
lynx-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
lynx-low.h
lynx-ppc-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
Makefile.in gdbserver: Add RISC-V/Linux support 2020-02-19 01:24:37 +00:00
mem-break.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
mem-break.h
notif.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
notif.h
nto-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
nto-low.h
nto-x86-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
proc-service.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
proc-service.list
README
regcache.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
regcache.h
remote-utils.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
remote-utils.h
server.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
server.h
symbol.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
target.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
target.h
tdesc.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
tdesc.h
thread-db.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
tracepoint.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
tracepoint.h
utils.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
utils.h
win32-arm-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
win32-i386-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
win32-low.cc Fix argv[] in programs invoked by gdbserver on MS-Windows 2020-02-14 11:53:55 +02:00
win32-low.h
wincecompat.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
wincecompat.h
x86-low.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00
x86-low.h
x86-tdesc.h
xtensa-xtregs.cc gdbserver: rename source files to .cc 2020-02-13 16:27:51 -05:00

		   README for GDBserver & GDBreplay
		    by Stu Grossman and Fred Fish

Introduction:

This is GDBserver, a remote server for Un*x-like systems.  It can be used to
control the execution of a program on a target system from a GDB on a different
host.  GDB and GDBserver communicate using the standard remote serial protocol
implemented in remote.c, and various *-stub.c files.  They communicate via
either a serial line or a TCP connection.

For more information about GDBserver, see the GDB manual.

Usage (server (target) side):

First, you need to have a copy of the program you want to debug put onto
the target system.  The program can be stripped to save space if needed, as
GDBserver doesn't care about symbols.  All symbol handling is taken care of by
the GDB running on the host system.

To use the server, you log on to the target system, and run the `gdbserver'
program.  You must tell it (a) how to communicate with GDB, (b) the name of
your program, and (c) its arguments.  The general syntax is:

	target> gdbserver COMM PROGRAM [ARGS ...]

For example, using a serial port, you might say:

	target> gdbserver /dev/com1 emacs foo.txt

This tells GDBserver to debug emacs with an argument of foo.txt, and to
communicate with GDB via /dev/com1.  GDBserver now waits patiently for the
host GDB to communicate with it.

To use a TCP connection, you could say:

	target> gdbserver host:2345 emacs foo.txt

This says pretty much the same thing as the last example, except that we are
going to communicate with the host GDB via TCP.  The `host:2345' argument means
that we are expecting to see a TCP connection from `host' to local TCP port
2345.  (Currently, the `host' part is ignored.)  You can choose any number you
want for the port number as long as it does not conflict with any existing TCP
ports on the target system.  This same port number must be used in the host
GDBs `target remote' command, which will be described shortly.  Note that if
you chose a port number that conflicts with another service, GDBserver will
print an error message and exit.

On some targets, GDBserver can also attach to running programs.  This is
accomplished via the --attach argument.  The syntax is:

	target> gdbserver --attach COMM PID

PID is the process ID of a currently running process.  It isn't necessary
to point GDBserver at a binary for the running process.

Usage (host side):

You need an unstripped copy of the target program on your host system, since
GDB needs to examine it's symbol tables and such.  Start up GDB as you normally
would, with the target program as the first argument.  (You may need to use the
--baud option if the serial line is running at anything except 9600 baud.)
Ie: `gdb TARGET-PROG', or `gdb --baud BAUD TARGET-PROG'.  After that, the only
new command you need to know about is `target remote'.  It's argument is either
a device name (usually a serial device, like `/dev/ttyb'), or a HOST:PORT
descriptor.  For example:

	(gdb) target remote /dev/ttyb

communicates with the server via serial line /dev/ttyb, and:

	(gdb) target remote the-target:2345

communicates via a TCP connection to port 2345 on host `the-target', where
you previously started up GDBserver with the same port number.  Note that for
TCP connections, you must start up GDBserver prior to using the `target remote'
command, otherwise you may get an error that looks something like
`Connection refused'.

Building GDBserver:

The supported targets as of November 2006 are:
	arm-*-linux*
	bfin-*-uclinux
	bfin-*-linux-uclibc
	crisv32-*-linux*
	cris-*-linux*
	i[34567]86-*-cygwin*
	i[34567]86-*-linux*
	i[34567]86-*-mingw*
	ia64-*-linux*
	m32r*-*-linux*
	m68*-*-linux*
	m68*-*-uclinux*
	mips*64*-*-linux*
	mips*-*-linux*
	powerpc[64]-*-linux*
	s390[x]-*-linux*
	sh-*-linux*
	spu*-*-*
	x86_64-*-linux*

Building GDBserver for your host is very straightforward.  If you build
GDB natively on a host which GDBserver supports, it will be built
automatically when you build GDB.  You can also build just GDBserver:

	% mkdir obj
	% cd obj
	% path-to-toplevel-sources/configure --disable-gdb
	% make all-gdbserver

(If you have a combined binutils+gdb tree, you may want to also
disable other directories when configuring, e.g., binutils, gas, gold,
gprof, and ld.)

If you prefer to cross-compile to your target, then you can also build
GDBserver that way.  In a Bourne shell, for example:

	% export CC=your-cross-compiler
	% path-to-topevel-sources/configure your-target-name --disable-gdb
	% make

Using GDBreplay:

A special hacked down version of GDBserver can be used to replay remote
debug log files created by GDB.  Before using the GDB "target" command to
initiate a remote debug session, use "set remotelogfile <filename>" to tell
GDB that you want to make a recording of the serial or tcp session.  Note
that when replaying the session, GDB communicates with GDBreplay via tcp,
regardless of whether the original session was via a serial link or tcp.

Once you are done with the remote debug session, start GDBreplay and
tell it the name of the log file and the host and port number that GDB
should connect to (typically the same as the host running GDB):

	$ gdbreplay logfile host:port

Then start GDB (preferably in a different screen or window) and use the
"target" command to connect to GDBreplay:

	(gdb) target remote host:port

Repeat the same sequence of user commands to GDB that you gave in the
original debug session.  GDB should not be able to tell that it is talking
to GDBreplay rather than a real target, all other things being equal.  Note
that GDBreplay echos the command lines to stderr, as well as the contents of
the packets it sends and receives.  The last command echoed by GDBreplay is
the next command that needs to be typed to GDB to continue the session in
sync with the original session.