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| author | Stefan Hajnoczi | 2019-03-21 18:08:31 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi | 2019-03-22 16:55:50 +0100 |
| commit | b33b890cd07eca1d05cd8c4f5f03790f0585423f (patch) | |
| tree | 6e1252313b3fb72b0d4f94d341fed6351fe747dd /hw/timer/lm32_timer.c | |
| parent | trace: handle tracefs path truncation (diff) | |
| download | qemu-b33b890cd07eca1d05cd8c4f5f03790f0585423f.tar.gz qemu-b33b890cd07eca1d05cd8c4f5f03790f0585423f.tar.xz qemu-b33b890cd07eca1d05cd8c4f5f03790f0585423f.zip | |
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: 23c3d569f44284066714ff7c46bc4f19e630583f ("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>
Diffstat (limited to 'hw/timer/lm32_timer.c')
0 files changed, 0 insertions, 0 deletions