The patch titled Subject: scripts/gdb: add get_gdbserver_type helper has been added to the -mm tree. Its filename is scripts-gdb-add-get_gdbserver_type-helper.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/scripts-gdb-add-get_gdbserver_type-helper.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/scripts-gdb-add-get_gdbserver_type-helper.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> Subject: scripts/gdb: add get_gdbserver_type helper This helper probes the type of the gdb server. Supported are QEMU and KGDB so far. Knowledge about the gdb server is required e.g. to retrieve the current CPU or current task. Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Jason Wessel <jason.wessel@xxxxxxxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Cc: Ben Widawsky <ben@xxxxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/gdb/linux/utils.py | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff -puN scripts/gdb/linux/utils.py~scripts-gdb-add-get_gdbserver_type-helper scripts/gdb/linux/utils.py --- a/scripts/gdb/linux/utils.py~scripts-gdb-add-get_gdbserver_type-helper +++ a/scripts/gdb/linux/utils.py @@ -119,3 +119,38 @@ def is_target_arch(arch): if target_arch is None: target_arch = gdb.execute("show architecture", to_string=True) return arch in target_arch + + +GDBSERVER_QEMU = 0 +GDBSERVER_KGDB = 1 +gdbserver_type = None + + +def get_gdbserver_type(): + def exit_handler(event): + global gdbserver_type + gdbserver_type = None + gdb.events.exited.disconnect(exit_handler) + + def probe_qemu(): + try: + return gdb.execute("monitor info version", to_string=True) != "" + except: + return False + + def probe_kgdb(): + try: + thread_info = gdb.execute("info thread 2", to_string=True) + return "shadowCPU0" in thread_info + except: + return False + + global gdbserver_type + if gdbserver_type is None: + if probe_qemu(): + gdbserver_type = GDBSERVER_QEMU + elif probe_kgdb(): + gdbserver_type = GDBSERVER_KGDB + if not gdbserver_type is None and hasattr(gdb, 'events'): + gdb.events.exited.connect(exit_handler) + return gdbserver_type _ Patches currently in -mm which might be from jan.kiszka@xxxxxxxxxxx are scripts-gdb-add-infrastructure.patch scripts-gdb-add-cache-for-type-objects.patch scripts-gdb-add-container_of-helper-and-convenience-function.patch scripts-gdb-add-module-iteration-class.patch scripts-gdb-add-lx-symbols-command.patch module-do-not-inline-do_init_module.patch scripts-gdb-add-automatic-symbol-reloading-on-module-insertion.patch scripts-gdb-add-internal-helper-and-convenience-function-to-look-up-a-module.patch scripts-gdb-add-get_target_endianness-helper.patch scripts-gdb-add-read_u16-32-64-helpers.patch scripts-gdb-add-lx-dmesg-command.patch scripts-gdb-add-task-iteration-class.patch scripts-gdb-add-helper-and-convenience-function-to-look-up-tasks.patch scripts-gdb-add-is_target_arch-helper.patch scripts-gdb-add-internal-helper-and-convenience-function-to-retrieve-thread_info.patch scripts-gdb-add-get_gdbserver_type-helper.patch scripts-gdb-add-internal-helper-and-convenience-function-for-per-cpu-lookup.patch scripts-gdb-add-lx_current-convenience-function.patch scripts-gdb-add-class-to-iterate-over-cpu-masks.patch scripts-gdb-add-lx-lsmod-command.patch scripts-gdb-add-basic-documentation.patch scripts-gdb-port-to-python3-gdb77.patch scripts-gdb-ignore-byte-compiled-python-files.patch scripts-gdb-use-a-generator-instead-of-iterator-for-task-list.patch scripts-gdb-convert-modulelist-to-generator-function.patch scripts-gdb-convert-cpulist-to-generator-function.patch scripts-gdb-define-maintainer.patch scripts-gdb-disable-pagination-while-printing-from-breakpoint-handler.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html