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[Qemu-devel] [RFC v4][PATCH 2/3] Monitor command 'info trace'
From: |
Prerna Saxena |
Subject: |
[Qemu-devel] [RFC v4][PATCH 2/3] Monitor command 'info trace' |
Date: |
Thu, 24 Jun 2010 17:01:15 +0530 |
Monitor command 'info trace' to display contents of trace buffer
Signed-off-by: Prerna Saxena <address@hidden>
---
configure | 3 +++
monitor.c | 12 ++++++++++++
qemu-monitor.hx | 4 ++++
simpletrace.c | 12 ++++++++++++
tracetool | 1 +
5 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
index 675d0fc..56af8dd 100755
--- a/configure
+++ b/configure
@@ -2302,6 +2302,9 @@ bsd)
esac
echo "TRACE_BACKEND=$trace_backend" >> $config_host_mak
+if test "$trace_backend" = "simple"; then
+ echo "CONFIG_SIMPLE_TRACE=y" >> $config_host_mak
+fi
if test "$trace_backend" = "ust"; then
LIBS="-lust $LIBS"
fi
diff --git a/monitor.c b/monitor.c
index ad50f12..8b60830 100644
--- a/monitor.c
+++ b/monitor.c
@@ -55,6 +55,9 @@
#include "json-streamer.h"
#include "json-parser.h"
#include "osdep.h"
+#ifdef CONFIG_SIMPLE_TRACE
+#include "trace.h"
+#endif
//#define DEBUG
//#define DEBUG_COMPLETION
@@ -2780,6 +2783,15 @@ static const mon_cmd_t info_cmds[] = {
.help = "show roms",
.mhandler.info = do_info_roms,
},
+#if defined(CONFIG_SIMPLE_TRACE)
+ {
+ .name = "trace",
+ .args_type = "",
+ .params = "",
+ .help = "show current contents of trace buffer",
+ .mhandler.info = do_info_trace,
+ },
+#endif
{
.name = NULL,
},
diff --git a/qemu-monitor.hx b/qemu-monitor.hx
index b6e3467..766c30f 100644
--- a/qemu-monitor.hx
+++ b/qemu-monitor.hx
@@ -114,6 +114,10 @@ show migration status
show balloon information
@item info qtree
show device tree
+#ifdef CONFIG_SIMPLE_TRACE
address@hidden info trace
+show contents of trace buffer
+#endif
@end table
ETEXI
diff --git a/simpletrace.c b/simpletrace.c
index b488380..5734d15 100644
--- a/simpletrace.c
+++ b/simpletrace.c
@@ -1,5 +1,6 @@
#include <stdlib.h>
#include <stdio.h>
+#include "monitor.h"
#include "trace.h"
typedef struct {
@@ -62,3 +63,14 @@ void trace4(TraceEventID event, unsigned long x1, unsigned
long x2, unsigned lon
void trace5(TraceEventID event, unsigned long x1, unsigned long x2, unsigned
long x3, unsigned long x4, unsigned long x5) {
trace(event, x1, x2, x3, x4, x5);
}
+
+void do_info_trace(Monitor *mon)
+{
+ unsigned int i;
+
+ for (i = 0; i < trace_idx ; i++) {
+ monitor_printf(mon, "Event %lu : %lx %lx %lx %lx %lx\n",
+ trace_buf[i].event, trace_buf[i].x1, trace_buf[i].x2,
+ trace_buf[i].x3, trace_buf[i].x4, trace_buf[i].x5);
+ }
+}
diff --git a/tracetool b/tracetool
index 0dc7f1b..6f8f8a9 100755
--- a/tracetool
+++ b/tracetool
@@ -130,6 +130,7 @@ void trace2(TraceEventID event, unsigned long x1, unsigned
long x2);
void trace3(TraceEventID event, unsigned long x1, unsigned long x2, unsigned
long x3);
void trace4(TraceEventID event, unsigned long x1, unsigned long x2, unsigned
long x3, unsigned long x4);
void trace5(TraceEventID event, unsigned long x1, unsigned long x2, unsigned
long x3, unsigned long x4, unsigned long x5);
+void do_info_trace(Monitor *mon);
EOF
simple_event_num=0
--
1.6.2.5
--
Prerna Saxena
Linux Technology Centre,
IBM Systems and Technology Lab,
Bangalore, India