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Pull request

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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.
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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>
This commit is contained in:
Peter Maydell 2019-01-31 12:03:39 +00:00
commit 460da1005d
15 changed files with 502 additions and 21 deletions
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4
docs/devel/tracing.txt
View file

@ -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