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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>
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3f940dc988
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20
gdbstub.c
20
gdbstub.c
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@ -2267,9 +2267,10 @@ static bool gdb_accept(void)
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}
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s = g_malloc0(sizeof(GDBState));
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s->c_cpu = first_cpu;
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s->g_cpu = first_cpu;
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create_default_process(s);
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s->processes[0].attached = true;
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s->c_cpu = gdb_first_attached_cpu(s);
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s->g_cpu = s->c_cpu;
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s->fd = fd;
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gdb_has_xml = false;
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@ -2355,8 +2356,19 @@ static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size)
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static void gdb_chr_event(void *opaque, int event)
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{
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int i;
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GDBState *s = (GDBState *) opaque;
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switch (event) {
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case CHR_EVENT_OPENED:
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/* Start with first process attached, others detached */
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for (i = 0; i < s->process_num; i++) {
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s->processes[i].attached = !i;
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}
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s->c_cpu = gdb_first_attached_cpu(s);
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s->g_cpu = s->c_cpu;
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vm_stop(RUN_STATE_PAUSED);
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gdb_has_xml = false;
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break;
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@ -2546,15 +2558,13 @@ int gdbserver_start(const char *device)
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memset(s, 0, sizeof(GDBState));
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s->mon_chr = mon_chr;
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}
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s->c_cpu = first_cpu;
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s->g_cpu = first_cpu;
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create_processes(s);
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if (chr) {
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qemu_chr_fe_init(&s->chr, chr, &error_abort);
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qemu_chr_fe_set_handlers(&s->chr, gdb_chr_can_receive, gdb_chr_receive,
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gdb_chr_event, NULL, NULL, NULL, true);
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gdb_chr_event, NULL, s, NULL, true);
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}
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s->state = chr ? RS_IDLE : RS_INACTIVE;
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s->mon_chr = mon_chr;
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