Re: [DTrace-devel] [PATCH 17/19] test: Add a pid-USDT test

[Sam James <sam@gentoo.org>]

"eugene.loh--- via DTrace-devel" <dtrace-devel@oss.oracle.com> writes:

> From: Eugene Loh <eugene.loh@oracle.com>
>
> This checks that pid entry, pid return, pid offset, USDT, and USDT
> is-enabled probes can all coexist.  Specifically, pid offset probes
> can sit on the same PCs as pid entry, USDT, and USDT is-enabled
> probes.
>
> Note that PCs for pid return probes are apparently in the caller
> function.  I guess that's due to using uretprobe.  I'm not convinced
> yet that that isn't a bug.  It isn't what Solaris did.
>
> Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
> ---
>  test/unittest/usdt/tst.pidprobes.r  |   1 +
>  test/unittest/usdt/tst.pidprobes.sh | 243 ++++++++++++++++++++++++++++
>  2 files changed, 244 insertions(+)
>  create mode 100644 test/unittest/usdt/tst.pidprobes.r
>  create mode 100755 test/unittest/usdt/tst.pidprobes.sh
>
> diff --git a/test/unittest/usdt/tst.pidprobes.r b/test/unittest/usdt/tst.pidprobes.r
> new file mode 100644
> index 00000000..2e9ba477
> --- /dev/null
> +++ b/test/unittest/usdt/tst.pidprobes.r
> @@ -0,0 +1 @@
> +success
> diff --git a/test/unittest/usdt/tst.pidprobes.sh b/test/unittest/usdt/tst.pidprobes.sh
> new file mode 100755
> index 00000000..7eadb9b7
> --- /dev/null
> +++ b/test/unittest/usdt/tst.pidprobes.sh
> @@ -0,0 +1,243 @@
> +#!/bin/bash
> +#
> +# Oracle Linux DTrace.
> +# Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
> +# Licensed under the Universal Permissive License v 1.0 as shown at
> +# http://oss.oracle.com/licenses/upl.
> +#
> +# This test verifies that USDT and pid probes can share underlying probes.
> +
> +dtrace=$1
> +
> +# Set up test directory.
> +
> +DIRNAME=$tmpdir/pidprobes.$$.$RANDOM
> +mkdir -p $DIRNAME
> +cd $DIRNAME
> +

Let's do mktemp -d?

> [...]