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| author | Peter Maydell <peter.maydell@linaro.org> | 2019-01-31 12:03:39 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-01-31 12:03:40 +0000 |
| commit | 460da1005d90beaab09f34a802976c0539d30587 (patch) | |
| tree | 51eba926c0c49ef37eaca57837ffcbbf54872003 /docs/devel | |
| parent | 006dce5f8fd298b4be7f1d69961ec1b46630d236 (diff) | |
| parent | 57b7bdf426445d8356171135308dfe6d7d5fb612 (diff) | |
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
Pull request
User-visible changes:
* The new qemu-trace-stap script makes it convenient to collect traces without
writing SystemTap scripts. See "man qemu-trace-stap" for details.
# gpg: Signature made Wed 30 Jan 2019 03:17:57 GMT
# gpg: using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request:
trace: rerun tracetool after ./configure changes
trace: improve runstate tracing
trace: add ability to do simple printf logging via systemtap
trace: forbid use of %m in trace event format strings
trace: enforce that every trace-events file has a final newline
display: ensure qxl log_buf is a nul terminated string
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs/devel')
| -rw-r--r-- | docs/devel/tracing.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/devel/tracing.txt b/docs/devel/tracing.txt index bc52f12485..056aa56496 100644 --- a/docs/devel/tracing.txt +++ b/docs/devel/tracing.txt @@ -317,6 +317,10 @@ probes: --target-name x86_64 \ <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. +Consult its manual page for guidance on its usage. + == Trace event properties == Each event in the "trace-events-all" file can be prefixed with a space-separated |