[DTrace-devel] [PATCH v3 13/21] runtest: put the in-tree-testing DOF stash under /tmp/runtest.*

[Nick Alcock]

Normally, the DOF stash goes under /run.  In-tree-tessting was putting it
under build in the srcdir, but that might be a quite different filesystem
from the tmpfs /run. In particular it might be an NFS filesystem, which
breaks the directory unlinkat()s done by the DOF stash thanks to
silly-renames.

Move it under the $tmpdir instead, which is usually /tmp, thus a tmpdir,
with similar semantics to /run. (This has the downside that the DOF stash
gets deleted after every test run, but the test runs should do quite
enough cross-dtrace-run testing to find bugs -- they have so far, not a
single dtprobed restart has fuond any bugs that weren't found by our
other various tricks.)

Signed-off-by: Nick Alcock <nick.alcock at oracle.com>
---
 runtest.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/runtest.sh b/runtest.sh
index f3fb3e343c81..eac6f49028ba 100755
--- a/runtest.sh
+++ b/runtest.sh
@@ -563,10 +563,10 @@ if [[ -z $USE_INSTALLED ]]; then
     helper_device="dtrace/test-$$"
     # Pre-existing directories from earlier tests are just fine!
     # dtprobed will clean things up.
-    mkdir -p $(pwd)/build/run/dtrace
-    dtprobed_flags="-n $helper_device -s$(pwd)/build/run/dtrace -F"
+    mkdir -p $tmpdir/run/dtrace
+    dtprobed_flags="-n $helper_device -s${tmpdir}/run/dtrace -F"
     export DTRACE_DOF_INIT_DEVNAME="/dev/$helper_device"
-    export DTRACE_OPT_DOFSTASHPATH="$(pwd)/build/run/dtrace"
+    export DTRACE_OPT_DOFSTASHPATH="${tmpdir}/run/dtrace"
 
     if [[ -z $(eval echo $dtrace) ]]; then
     	echo "No dtraces available." >&2
-- 
2.43.0.272.gce700b77fd