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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 /Makefile | |
| parent | 94a420b170b3e997a185a4148accc87bdcd18156 (diff) | |
| download | qemu-26f7227bfe9a9abee3fe5190cbfc35dd876e06d9.zip qemu-26f7227bfe9a9abee3fe5190cbfc35dd876e06d9.tar.gz qemu-26f7227bfe9a9abee3fe5190cbfc35dd876e06d9.tar.bz2 | |
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 'Makefile')
| -rw-r--r-- | Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -112,6 +112,8 @@ trace.c: $(SRC_PATH)/trace-events config-host.mak trace.o: trace.c $(GENERATED_HEADERS) +simpletrace.o: simpletrace.c $(GENERATED_HEADERS) + ###################################################################### qemu-img.o: qemu-img-cmds.h |