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authorLuc Michel <luc.michel@greensocs.com>2019-01-07 15:23:46 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-01-07 15:23:46 +0000
commit970ed9064aa9f997fd9e65d707dd5cafc7360703 (patch)
tree321b4d571712c6f550ce73a46b1194ec75870f41
parent3f940dc988b8b958ad940a373cd4c1d1b32e503e (diff)
downloadqemu-arm-970ed9064aa9f997fd9e65d707dd5cafc7360703.tar.gz
gdbstub: processes initialization on new peer connection
When a new connection is established, we set the first process to be attached, and the others detached. The first CPU of the first process is selected as the current CPU. Signed-off-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20181207090135.7651-14-luc.michel@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--gdbstub.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/gdbstub.c b/gdbstub.c
index d80af955ce..432e7d2f7d 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -2267,9 +2267,10 @@ static bool gdb_accept(void)
}
s = g_malloc0(sizeof(GDBState));
- s->c_cpu = first_cpu;
- s->g_cpu = first_cpu;
create_default_process(s);
+ s->processes[0].attached = true;
+ s->c_cpu = gdb_first_attached_cpu(s);
+ s->g_cpu = s->c_cpu;
s->fd = fd;
gdb_has_xml = false;
@@ -2355,8 +2356,19 @@ static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size)
static void gdb_chr_event(void *opaque, int event)
{
+ int i;
+ GDBState *s = (GDBState *) opaque;
+
switch (event) {
case CHR_EVENT_OPENED:
+ /* Start with first process attached, others detached */
+ for (i = 0; i < s->process_num; i++) {
+ s->processes[i].attached = !i;
+ }
+
+ s->c_cpu = gdb_first_attached_cpu(s);
+ s->g_cpu = s->c_cpu;
+
vm_stop(RUN_STATE_PAUSED);
gdb_has_xml = false;
break;
@@ -2546,15 +2558,13 @@ int gdbserver_start(const char *device)
memset(s, 0, sizeof(GDBState));
s->mon_chr = mon_chr;
}
- s->c_cpu = first_cpu;
- s->g_cpu = first_cpu;
create_processes(s);
if (chr) {
qemu_chr_fe_init(&s->chr, chr, &error_abort);
qemu_chr_fe_set_handlers(&s->chr, gdb_chr_can_receive, gdb_chr_receive,
- gdb_chr_event, NULL, NULL, NULL, true);
+ gdb_chr_event, NULL, s, NULL, true);
}
s->state = chr ? RS_IDLE : RS_INACTIVE;
s->mon_chr = mon_chr;