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https://gitlab.com/qemu-project/qemu
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89aafcf2a7
Now we no longer have any events that are for vcpus we can start excising the code from the trace control. As the vcpu parameter is encoded as part of QMP we just stub out the has_vcpu/vcpu parameters rather than alter the API. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20230526165401.574474-8-alex.bennee@linaro.org Message-Id: <20230524133952.3971948-7-alex.bennee@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
/*
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* HMP commands related to tracing
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "monitor/hmp.h"
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#include "monitor/monitor.h"
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#include "qapi/error.h"
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#include "qapi/qapi-commands-trace.h"
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#include "qapi/qmp/qdict.h"
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#include "trace/control.h"
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#ifdef CONFIG_TRACE_SIMPLE
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#include "trace/simple.h"
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#endif
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void hmp_trace_event(Monitor *mon, const QDict *qdict)
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{
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const char *tp_name = qdict_get_str(qdict, "name");
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bool new_state = qdict_get_bool(qdict, "option");
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Error *local_err = NULL;
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qmp_trace_event_set_state(tp_name, new_state,
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true, true, false, 0, &local_err);
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if (local_err) {
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error_report_err(local_err);
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}
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}
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#ifdef CONFIG_TRACE_SIMPLE
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void hmp_trace_file(Monitor *mon, const QDict *qdict)
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{
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const char *op = qdict_get_try_str(qdict, "op");
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const char *arg = qdict_get_try_str(qdict, "arg");
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if (!op) {
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st_print_trace_file_status();
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} else if (!strcmp(op, "on")) {
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st_set_trace_file_enabled(true);
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} else if (!strcmp(op, "off")) {
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st_set_trace_file_enabled(false);
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} else if (!strcmp(op, "flush")) {
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st_flush_trace_buffer();
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} else if (!strcmp(op, "set")) {
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if (arg) {
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st_set_trace_file(arg);
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}
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} else {
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monitor_printf(mon, "unexpected argument \"%s\"\n", op);
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hmp_help_cmd(mon, "trace-file");
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}
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}
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#endif
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void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
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{
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const char *name = qdict_get_try_str(qdict, "name");
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TraceEventInfoList *events;
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TraceEventInfoList *elem;
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Error *local_err = NULL;
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if (name == NULL) {
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name = "*";
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}
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events = qmp_trace_event_get_state(name, false, 0, &local_err);
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if (local_err) {
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error_report_err(local_err);
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return;
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}
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for (elem = events; elem != NULL; elem = elem->next) {
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monitor_printf(mon, "%s : state %u\n",
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elem->value->name,
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elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
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}
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qapi_free_TraceEventInfoList(events);
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}
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void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
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{
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size_t len;
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len = strlen(str);
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readline_set_completion_index(rs, len);
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if (nb_args == 2) {
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TraceEventIter iter;
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TraceEvent *ev;
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char *pattern = g_strdup_printf("%s*", str);
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trace_event_iter_init_pattern(&iter, pattern);
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while ((ev = trace_event_iter_next(&iter)) != NULL) {
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readline_add_completion(rs, trace_event_get_name(ev));
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}
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g_free(pattern);
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}
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}
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void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
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{
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size_t len;
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len = strlen(str);
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readline_set_completion_index(rs, len);
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if (nb_args == 2) {
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TraceEventIter iter;
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TraceEvent *ev;
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char *pattern = g_strdup_printf("%s*", str);
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trace_event_iter_init_pattern(&iter, pattern);
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while ((ev = trace_event_iter_next(&iter)) != NULL) {
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readline_add_completion(rs, trace_event_get_name(ev));
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}
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g_free(pattern);
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} else if (nb_args == 3) {
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readline_add_completion_of(rs, str, "on");
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readline_add_completion_of(rs, str, "off");
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}
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}
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