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gdbstub: add multiprocess support to 'sC' packets

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Change the sC packet handling to support the multiprocess extension.
Instead of returning the first thread, we return the first thread of the
current process.

Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181207090135.7651-7-luc.michel@greensocs.com
[PMM: corrected checkpatch comment style nit]
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 e40e5204af
commit 8dbbe9ac7f
1 changed files with 9 additions and 3 deletions
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12
gdbstub.c
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@ -1554,9 +1554,15 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf)
put_packet(s, "OK");
break;
} else if (strcmp(p,"C") == 0) {
/* "Current thread" remains vague in the spec, so always return
* the first CPU (gdb returns the first thread). */
put_packet(s, "QC1");
/*
* "Current thread" remains vague in the spec, so always return
* the first thread of the current process (gdb returns the
* first thread).
*/
cpu = get_first_cpu_in_process(s, gdb_get_cpu_process(s, s->g_cpu));
snprintf(buf, sizeof(buf), "QC%s",
gdb_fmt_thread_id(s, cpu, thread_id, sizeof(thread_id)));
put_packet(s, buf);
break;
} else if (strcmp(p,"fThreadInfo") == 0) {
s->query_cpu = first_cpu;