tracetool needs to know the group name ("all", "root", or a specific
subdirectory). Also remove the stdin redirection because tracetool.py
needs the path to the trace-events file. Update the documentation.
Fixes: 2098c56a9bc5901e145fa5d4759f075808811685
("trace: move setting of group name into Makefiles")
Launchpad: https://bugs.launchpad.net/bugs/1844814
Reported-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Reviewed-by: Daniel P. Berrangé <berra...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Tested-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
Message-Id: <20191009135154.10970-1-stefa...@redhat.com>
---
docs/devel/tracing.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/docs/devel/tracing.txt b/docs/devel/tracing.txt
index 8231bbf5d1..8c0376fefa 100644
--- a/docs/devel/tracing.txt
+++ b/docs/devel/tracing.txt
@@ -317,7 +317,8 @@ probes:
--binary path/to/qemu-binary \
--target-type system \
--target-name x86_64 \
- <trace-events-all >qemu.stp
+ --group=all \
+ trace-events-all >qemu.stp
To facilitate simple usage of systemtap where there merely needs to be printf
logging of certain probes, a helper script "qemu-trace-stap" is provided.
--
2.21.0
