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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>
This commit is contained in:
Luc Michel 2019-01-07 15:23:46 +00:00 committed by Peter Maydell
parent 3f940dc988
commit 970ed9064a
1 changed files with 15 additions and 5 deletions
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20
gdbstub.c
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@ -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;