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| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2010-05-22 19:24:51 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-09-09 16:22:44 -0500 |
| commit | 26f7227bfe9a9abee3fe5190cbfc35dd876e06d9 (patch) | |
| tree | 8faec109ee82f27d466787dbfa9620682fb76d6e /configure | |
| parent | 94a420b170b3e997a185a4148accc87bdcd18156 (diff) | |
| download | qemu-26f7227bfe9a9abee3fe5190cbfc35dd876e06d9.zip | |
trace: Add simple built-in tracing backend
This patch adds a simple tracer which produces binary trace files. To
try out the simple backend:
$ ./configure --trace-backend=simple
$ make
After running QEMU you can pretty-print the trace:
$ ./simpletrace.py trace-events trace.log
The output of simpletrace.py looks like this:
qemu_realloc 0.699 ptr=0x24363f0 size=0x3 newptr=0x24363f0
qemu_free 0.768 ptr=0x24363f0
^ ^---- timestamp delta (us)
|____ trace event name
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
trace: Make trace record fields 64-bit
Explicitly use 64-bit fields in trace records so that timestamps and
magic numbers work for 32-bit host builds.
Includes fixes from Prerna Saxena <prerna@linux.vnet.ibm.com>.
Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -900,7 +900,7 @@ echo " --enable-docs enable documentation build" echo " --disable-docs disable documentation build" echo " --disable-vhost-net disable vhost-net acceleration support" echo " --enable-vhost-net enable vhost-net acceleration support" -echo " --trace-backend=B Trace backend nop" +echo " --trace-backend=B Trace backend nop simple" echo "" echo "NOTE: The object files are built at the place where configure is launched" exit 1 |