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authorPeter Maydell <peter.maydell@linaro.org>2016-09-06 12:41:24 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-09-06 12:41:24 +0100
commit30e7d092b26146eb2abb77e0a0952aea012e36bf (patch)
tree8188256de4bf74dde49d9f048c4af3b4212b70ea /trace/control-target.c
parent1fd66154fdf8305e6668a96046a22b863b4d7320 (diff)
parent8eb1b9db559e243043aaeac3a0aa97e1f4a403c4 (diff)
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
# gpg: Signature made Mon 05 Sep 2016 20:41:04 BST # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/tracing-pull-request: trace: Avoid implicit bool->integer conversions trace: Remove 'trace_events_dstate_init' trace: add syslog tracing backend Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'trace/control-target.c')
-rw-r--r--trace/control-target.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/trace/control-target.c b/trace/control-target.c
index 74c029a..72081e2 100644
--- a/trace/control-target.c
+++ b/trace/control-target.c
@@ -13,6 +13,27 @@
#include "translate-all.h"
+void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
+{
+ TraceEventID id = trace_event_get_id(ev);
+ bool state_pre;
+ assert(trace_event_get_state_static(ev));
+ /*
+ * We ignore the "vcpu" property here, since no vCPUs have been created
+ * yet. Then dstate can only be 1 or 0.
+ */
+ state_pre = trace_events_dstate[id];
+ if (state_pre != state) {
+ if (state) {
+ trace_events_enabled_count++;
+ trace_events_dstate[id] = 1;
+ } else {
+ trace_events_enabled_count--;
+ trace_events_dstate[id] = 0;
+ }
+ }
+}
+
void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
{
CPUState *vcpu;
@@ -22,9 +43,18 @@ void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
trace_event_set_vcpu_state_dynamic(vcpu, ev, state);
}
} else {
+ /* Without the "vcpu" property, dstate can only be 1 or 0 */
TraceEventID id = trace_event_get_id(ev);
- trace_events_enabled_count += state - trace_events_dstate[id];
- trace_events_dstate[id] = state;
+ bool state_pre = trace_events_dstate[id];
+ if (state_pre != state) {
+ if (state) {
+ trace_events_enabled_count++;
+ trace_events_dstate[id] = 1;
+ } else {
+ trace_events_enabled_count--;
+ trace_events_dstate[id] = 0;
+ }
+ }
}
}