qemu-e2k/scripts
Stefan Hajnoczi b33b890cd0 trace: avoid SystemTap dtrace(1) warnings on empty files
target/hppa/trace-events only contains disabled events, resulting in a
trace-dtrace.dtrace file that says "provider qemu {}".  SystemTap's
dtrace(1) tool prints a warning when processing this input file.

This patch avoids the error by emitting an empty file instead of
"provider qemu {}" when there are no enabled trace events.

Fixes: 23c3d569f4 ("target/hppa: add TLB trace events")
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Message-id: 20190321170831.6539-3-stefanha@redhat.com
Message-Id: <20190321170831.6539-3-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22 15:55:50 +00:00
..
coccinelle
kvm
modules
qapi
qemu-guest-agent
qemugdb
qmp
tracetool trace: avoid SystemTap dtrace(1) warnings on empty files 2019-03-22 15:55:50 +00:00
travis
analyse-9p-simpletrace.py
analyse-locks-simpletrace.py
analyze-inclusions
analyze-migration.py
archive-source.sh
checkpatch.pl
clean-header-guards.pl
clean-includes
cleanup-trace-events.pl
cocci-macro-file.h
coverity-model.c
create_config
decodetree.py
device-crash-test
disas-objdump.pl
dump-guest-memory.py
extract-vsssdk-headers
feature_to_c.sh
fix-multiline-comments.sh
get_maintainer.pl
git-submodule.sh
git.orderfile
hxtool
make-release
minikconf.py
qapi-gen.py
qemu-binfmt-conf.sh
qemu-gdb.py
qemu-trace-stap
qemu-trace-stap.texi
refresh-pxe-roms.sh
render_block_graph.py
replay-dump.py
shaderinclude.pl
show-fixed-bugs.sh
signrom.py
simpletrace.py
switch-timer-api
tap-driver.pl
tap-merge.pl
texi2pod.pl
tracetool.py
update-linux-headers.sh
vmstate-static-checker.py