From 8dbbe9ac7f9c838d80fdf06b133daa12ffc3f264 Mon Sep 17 00:00:00 2001 From: Luc Michel Date: Mon, 7 Jan 2019 15:23:46 +0000 Subject: gdbstub: add multiprocess support to 'sC' packets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Reviewed-by: Edgar E. Iglesias Message-id: 20181207090135.7651-7-luc.michel@greensocs.com [PMM: corrected checkpatch comment style nit] Signed-off-by: Peter Maydell --- gdbstub.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/gdbstub.c b/gdbstub.c index 09114ea776..1ba7aa6a28 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -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; -- cgit v1.2.3