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X-Received-From: 2a00:1450:4864:20::444 Subject: [Qemu-devel] [PATCH v12 06/20] gdbstub: Implement set_thread (H pkt) with new infra X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alex.bennee@linaro.org, Jon Doron Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Signed-off-by: Jon Doron Reviewed-by: Alex Benn=C3=A9e --- gdbstub.c | 83 +++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 53 insertions(+), 30 deletions(-) diff --git a/gdbstub.c b/gdbstub.c index 5df4d58427..db213cf173 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1560,6 +1560,51 @@ static void handle_cont_with_sig(GdbCmdContext *gdb_= ctx, void *user_ctx) gdb_continue(gdb_ctx->s); } =20 +static void handle_set_thread(GdbCmdContext *gdb_ctx, void *user_ctx) +{ + CPUState *cpu; + + if (gdb_ctx->num_params !=3D 2) { + put_packet(gdb_ctx->s, "E22"); + return; + } + + if (gdb_ctx->params[1].thread_id.kind =3D=3D GDB_READ_THREAD_ERR) { + put_packet(gdb_ctx->s, "E22"); + return; + } + + if (gdb_ctx->params[1].thread_id.kind !=3D GDB_ONE_THREAD) { + put_packet(gdb_ctx->s, "OK"); + return; + } + + cpu =3D gdb_get_cpu(gdb_ctx->s, gdb_ctx->params[1].thread_id.pid, + gdb_ctx->params[1].thread_id.tid); + if (!cpu) { + put_packet(gdb_ctx->s, "E22"); + return; + } + + /* + * Note: This command is deprecated and modern gdb's will be using the + * vCont command instead. + */ + switch (gdb_ctx->params[0].opcode) { + case 'c': + gdb_ctx->s->c_cpu =3D cpu; + put_packet(gdb_ctx->s, "OK"); + break; + case 'g': + gdb_ctx->s->g_cpu =3D cpu; + put_packet(gdb_ctx->s, "OK"); + break; + default: + put_packet(gdb_ctx->s, "E22"); + break; + } +} + static int gdb_handle_packet(GDBState *s, const char *line_buf) { CPUState *cpu; @@ -1573,7 +1618,6 @@ static int gdb_handle_packet(GDBState *s, const char = *line_buf) char thread_id[16]; uint8_t *registers; target_ulong addr, len; - GDBThreadIdKind thread_kind; const GdbCmdParseEntry *cmd_parser =3D NULL; =20 trace_gdbstub_io_command(line_buf); @@ -1836,35 +1880,14 @@ static int gdb_handle_packet(GDBState *s, const cha= r *line_buf) put_packet(s, "E22"); break; case 'H': - type =3D *p++; - - thread_kind =3D read_thread_id(p, &p, &pid, &tid); - if (thread_kind =3D=3D GDB_READ_THREAD_ERR) { - put_packet(s, "E22"); - break; - } - - if (thread_kind !=3D GDB_ONE_THREAD) { - put_packet(s, "OK"); - break; - } - cpu =3D gdb_get_cpu(s, pid, tid); - if (cpu =3D=3D NULL) { - put_packet(s, "E22"); - break; - } - switch (type) { - case 'c': - s->c_cpu =3D cpu; - put_packet(s, "OK"); - break; - case 'g': - s->g_cpu =3D cpu; - put_packet(s, "OK"); - break; - default: - put_packet(s, "E22"); - break; + { + static const GdbCmdParseEntry set_thread_cmd_desc =3D { + .handler =3D handle_set_thread, + .cmd =3D "H", + .cmd_startswith =3D 1, + .schema =3D "o.t0" + }; + cmd_parser =3D &set_thread_cmd_desc; } break; case 'T': --=20 2.21.0