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[Qemu-devel] [PULL 14/37] gdbstub: add support for vAttach packets
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 14/37] gdbstub: add support for vAttach packets |
Date: |
Mon, 7 Jan 2019 16:30:54 +0000 |
From: Luc Michel <address@hidden>
Add support for the vAttach packets. In multiprocess mode, GDB sends
them to attach to additional processes.
Signed-off-by: Luc Michel <address@hidden>
Reviewed-by: Edgar E. Iglesias <address@hidden>
Acked-by: Alistair Francis <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
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
- [Qemu-devel] [PULL 05/37] gdbstub: add multiprocess support to '?' packets, (continued)
- [Qemu-devel] [PULL 05/37] gdbstub: add multiprocess support to '?' packets, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 06/37] gdbstub: add multiprocess support to 'H' and 'T' packets, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 07/37] gdbstub: add multiprocess support to vCont packets, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 09/37] gdbstub: add multiprocess support to (f|s)ThreadInfo and ThreadExtraInfo, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 08/37] gdbstub: add multiprocess support to 'sC' packets, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 10/37] gdbstub: add multiprocess support to Xfer:features:read:, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 11/37] gdbstub: add multiprocess support to gdb_vm_state_change(), Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 14/37] gdbstub: add support for vAttach packets,
Peter Maydell <=
- [Qemu-devel] [PULL 17/37] gdbstub: add multiprocess extension support, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 15/37] gdbstub: processes initialization on new peer connection, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 19/37] Revert "armv7m: Guard against no -kernel argument", Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 12/37] gdbstub: add multiprocess support to 'D' packets, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 13/37] gdbstub: add support for extended mode packet, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 20/37] hw/arm: versal: Plug memory leaks, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 18/37] arm/xlnx-zynqmp: put APUs and RPUs in separate CPU clusters, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 22/37] cpus.c: Fix race condition in cpu_stop_current(), Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 16/37] gdbstub: gdb_set_stop_cpu: ignore request when process is not attached, Peter Maydell, 2019/01/07
- [Qemu-devel] [PULL 21/37] MAINTAINERS: Add ARM-related files for hw/[misc|input|timer]/, Peter Maydell, 2019/01/07