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authorStefan Hajnoczi <stefanha@redhat.com>2019-10-09 14:51:54 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2019-10-15 09:46:21 +0100
commitbd200384c515bdc84d52f1735c0fea43c8f61e11 (patch)
tree65e6ffeb467adb3f972ef01c9c318ad7ac84cce8
parent98b2e3c9ab3abfe476a2b02f8f51813edb90e72d (diff)
downloadqemu-arm-bd200384c515bdc84d52f1735c0fea43c8f61e11.tar.gz
trace: add --group=all to tracing.txt
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") Buglink: https://bugs.launchpad.net/bugs/1844814 Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20191009135154.10970-1-stefanha@redhat.com>
-rw-r--r--docs/devel/tracing.txt3
1 files changed, 2 insertions, 1 deletions
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.