[Xen-devel] [PATCH 5/5] tools/hotplug: support XENSTORED_TRACE in systemd

[Olaf Hering <olaf@xxxxxxxxx>]

The sysv runlevel script handles the boolean variable XENSTORED_TRACE
from sysconfig.xencommons to enable tracing. Recognize this also to
the systemd service file.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/hotplug/Linux/systemd/xenstored.service.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/hotplug/Linux/systemd/xenstored.service.in 
b/tools/hotplug/Linux/systemd/xenstored.service.in
index 0f0ac58..7e55f4f 100644
--- a/tools/hotplug/Linux/systemd/xenstored.service.in
+++ b/tools/hotplug/Linux/systemd/xenstored.service.in
@@ -14,7 +14,7 @@ EnvironmentFile=-@CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons
 ExecStartPre=/bin/grep -q control_d /proc/xen/capabilities
 ExecStartPre=-/bin/rm -f @XEN_LIB_STORED@/tdb*
 ExecStartPre=/bin/mkdir -p @XEN_RUN_DIR@
-ExecStart=/bin/sh -c "exec $XENSTORED --no-fork $XENSTORED_ARGS"
+ExecStart=/bin/sh -c 'if test -n "${XENSTORED_TRACE}" ; then 
XENSTORED_ARGS="-T /var/log/xen/xenstored-trace.log" ; fi ; exec $XENSTORED 
--no-fork $$XENSTORED_ARGS'
 
 [Install]
 WantedBy=multi-user.target

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