From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:46290) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ggXoZ-0004zo-Ce for qemu-devel@nongnu.org; Mon, 07 Jan 2019 11:31:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ggXoX-000244-UW for qemu-devel@nongnu.org; Mon, 07 Jan 2019 11:31:47 -0500 Received: from mail-wm1-x32e.google.com ([2a00:1450:4864:20::32e]:50232) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ggXoX-0001ud-Mn for qemu-devel@nongnu.org; Mon, 07 Jan 2019 11:31:45 -0500 Received: by mail-wm1-x32e.google.com with SMTP id n190so1470222wmd.0 for ; Mon, 07 Jan 2019 08:31:39 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id j14sm46039759wrv.96.2019.01.07.08.31.36 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 07 Jan 2019 08:31:37 -0800 (PST) From: Peter Maydell Date: Mon, 7 Jan 2019 16:30:54 +0000 Message-Id: <20190107163117.16269-15-peter.maydell@linaro.org> In-Reply-To: <20190107163117.16269-1-peter.maydell@linaro.org> References: <20190107163117.16269-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL 14/37] gdbstub: add support for vAttach packets List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org From: Luc Michel Add support for the vAttach packets. In multiprocess mode, GDB sends them to attach to additional processes. Signed-off-by: Luc Michel Reviewed-by: Edgar E. Iglesias Acked-by: Alistair Francis Reviewed-by: Philippe Mathieu-Daudé Message-id: 20181207090135.7651-13-luc.michel@greensocs.com Signed-off-by: Peter Maydell --- gdbstub.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/gdbstub.c b/gdbstub.c index 9b6b4d20a02..d80af955cea 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1348,6 +1348,41 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) goto unknown_command; } break; + } else if (strncmp(p, "Attach;", 7) == 0) { + unsigned long pid; + + p += 7; + + if (qemu_strtoul(p, &p, 16, &pid)) { + put_packet(s, "E22"); + break; + } + + process = gdb_get_process(s, pid); + + if (process == NULL) { + put_packet(s, "E22"); + break; + } + + cpu = get_first_cpu_in_process(s, process); + + if (cpu == NULL) { + /* Refuse to attach an empty process */ + put_packet(s, "E22"); + break; + } + + process->attached = true; + + s->g_cpu = cpu; + s->c_cpu = cpu; + + snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP, + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id))); + + put_packet(s, buf); + break; } else { goto unknown_command; } -- 2.19.2