Documentation: move dev-tools debugging files to process/debugging/

Move gdb and kgdb debugging documentation to the dedicated
debugging directory (Documentation/process/debugging/).
Adjust the index.rst files to follow the file movement.
Adjust files that refer to these moved files to follow the file movement.
Update location of kgdb.rst in MAINTAINERS file.
Add a link from dev-tools/index to process/debugging/index.

Note: translations are not updated.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sebastian Fricke <sebastian.fricke@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: workflows@vger.kernel.org
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Daniel Thompson <danielt@kernel.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: linux-debuggers@vger.kernel.org
Cc: kgdb-bugreport@lists.sourceforge.net
Cc: Doug Anderson <dianders@chromium.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Daniel Thompson <danielt@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241210000041.305477-1-rdunlap@infradead.org

Documentation/admin-guide/README.rst

@@ -356,5 +356,5 @@ instructions at 'Documentation/admin-guide/reporting-issues.rst'.
 
 Hints on understanding kernel bug reports are in
 'Documentation/admin-guide/bug-hunting.rst'. More on debugging the kernel
-with gdb is in 'Documentation/dev-tools/gdb-kernel-debugging.rst' and
-'Documentation/dev-tools/kgdb.rst'.
+with gdb is in 'Documentation/process/debugging/gdb-kernel-debugging.rst' and
+'Documentation/process/debugging/kgdb.rst'.

Documentation/dev-tools/index.rst

@@ -10,6 +10,9 @@ whole; patches welcome!
 A brief overview of testing-specific tools can be found in
 Documentation/dev-tools/testing-overview.rst
 
+Tools that are specific to debugging can be found in
+Documentation/process/debugging/index.rst
+
 .. toctree::
    :caption: Table of contents
    :maxdepth: 2
@@ -27,8 +30,6 @@ Documentation/dev-tools/testing-overview.rst
    kmemleak
    kcsan
    kfence
-   gdb-kernel-debugging
-   kgdb
    kselftest
    kunit/index
    ktap

Documentation/process/debugging/index.rst

@@ -11,6 +11,8 @@ general guides
    :maxdepth: 1
 
    driver_development_debugging_guide
+   gdb-kernel-debugging
+   kgdb
    userspace_debugging_guide
 
 .. only::  subproject and html

MAINTAINERS

@@ -12811,7 +12811,7 @@ L:	kgdb-bugreport@lists.sourceforge.net
 S:	Maintained
 W:	http://kgdb.wiki.kernel.org/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git
-F:	Documentation/dev-tools/kgdb.rst
+F:	Documentation/process/debugging/kgdb.rst
 F:	drivers/misc/kgdbts.c
 F:	drivers/tty/serial/kgdboc.c
 F:	include/linux/kdb.h

include/linux/tty_driver.h

@@ -320,7 +320,7 @@ struct serial_struct;
  *
  * @poll_init: ``int ()(struct tty_driver *driver, int line, char *options)``
  *
- *	kgdboc support (Documentation/dev-tools/kgdb.rst). This routine is
+ *	kgdboc support (Documentation/process/debugging/kgdb.rst). This routine is
  *	called to initialize the HW for later use by calling @poll_get_char or
  *	@poll_put_char.
  *

lib/Kconfig.debug

@@ -433,7 +433,7 @@ config GDB_SCRIPTS
 	  build directory. If you load vmlinux into gdb, the helper
 	  scripts will be automatically imported by gdb as well, and
 	  additional functions are available to analyze a Linux kernel
-	  instance. See Documentation/dev-tools/gdb-kernel-debugging.rst
+	  instance. See Documentation/process/debugging/gdb-kernel-debugging.rst
 	  for further details.
 
 endif # DEBUG_INFO

lib/Kconfig.kgdb

@@ -19,7 +19,7 @@ menuconfig KGDB
 	  CONFIG_FRAME_POINTER to aid in producing more reliable stack
 	  backtraces in the external debugger.  Documentation of
 	  kernel debugger is available at http://kgdb.sourceforge.net
-	  as well as in Documentation/dev-tools/kgdb.rst.  If
+	  as well as in Documentation/process/debugging/kgdb.rst.  If
 	  unsure, say N.
 
 if KGDB