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[Qemu-arm] [PATCH v6 12/16] gdbstub: add support for vAttach packets
From: |
Luc Michel |
Subject: |
[Qemu-arm] [PATCH v6 12/16] gdbstub: add support for vAttach packets |
Date: |
Thu, 15 Nov 2018 10:42:03 +0100 |
Add support for the vAttach packets. In multiprocess mode, GDB sends
them to attach to additional processes.
Signed-off-by: Luc Michel <address@hidden>
---
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 char
*line_buf)
break;
}
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;
}
case 'k':
/* Kill the target */
--
2.19.1
- [Qemu-arm] [PATCH v6 00/16] gdbstub: support for the multiprocess extension, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 04/16] gdbstub: add multiprocess support to 'H' and 'T' packets, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 02/16] gdbstub: introduce GDB processes, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 03/16] gdbstub: add multiprocess support to '?' packets, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 01/16] hw/cpu: introduce CPU clusters, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 12/16] gdbstub: add support for vAttach packets,
Luc Michel <=
- [Qemu-arm] [PATCH v6 08/16] gdbstub: add multiprocess support to Xfer:features:read:, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 16/16] arm/xlnx-zynqmp: put APUs and RPUs in separate CPU clusters, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 05/16] gdbstub: add multiprocess support to vCont packets, Luc Michel, 2018/11/15
- [Qemu-arm] [PATCH v6 06/16] gdbstub: add multiprocess support to 'sC' packets, Luc Michel, 2018/11/15