From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40172) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gNEAl-0007Nu-Ih for qemu-devel@nongnu.org; Thu, 15 Nov 2018 04:42:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gNEAh-0004fz-Iv for qemu-devel@nongnu.org; Thu, 15 Nov 2018 04:42:51 -0500 From: Luc Michel Date: Thu, 15 Nov 2018 10:42:03 +0100 Message-Id: <20181115094207.22846-13-luc.michel@greensocs.com> In-Reply-To: <20181115094207.22846-1-luc.michel@greensocs.com> References: <20181115094207.22846-1-luc.michel@greensocs.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v6 12/16] gdbstub: add support for vAttach packets List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Luc Michel , qemu-arm@nongnu.org, Peter Maydell , saipava@xilinx.com, edgari@xilinx.com, alistair@alistair23.me, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , mark.burton@greensocs.com, Eduardo Habkost Add support for the vAttach packets. In multiprocess mode, GDB sends them to attach to additional processes. Signed-off-by: Luc Michel --- gdbstub.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/gdbstub.c b/gdbstub.c index ada53ac559..0427d1c4f0 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1340,10 +1340,45 @@ static int gdb_handle_packet(GDBState *s, const c= har *line_buf) break; } goto unknown_command; } break; + } else if (strncmp(p, "Attach;", 7) =3D=3D 0) { + unsigned long pid; + + p +=3D 7; + + if (qemu_strtoul(p, &p, 16, &pid)) { + put_packet(s, "E22"); + break; + } + + process =3D gdb_get_process(s, pid); + + if (process =3D=3D NULL) { + put_packet(s, "E22"); + break; + } + + cpu =3D get_first_cpu_in_process(s, process); + + if (cpu =3D=3D NULL) { + /* Refuse to attach an empty process */ + put_packet(s, "E22"); + break; + } + + process->attached =3D true; + + s->g_cpu =3D cpu; + s->c_cpu =3D cpu; + + snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRA= P, + gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_= id))); + + put_packet(s, buf); + break; } else { goto unknown_command; } case 'k': /* Kill the target */ --=20 2.19.1