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Exercise the tracefs interface for trace remote with a set of tests to check: * loading/unloading (unloading.tc) * reset (reset.tc) * size changes (buffer_size.tc) * consuming read (trace_pipe.tc) * non-consuming read (trace.tc) Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: linux-kselftest@vger.kernel.org Link: https://patch.msgid.link/20260309162516.2623589-16-vdonnefort@google.com Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Vincent Donnefort <vdonnefort@google.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
42 lines
683 B
Bash
42 lines
683 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: Test trace remote unloading
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# requires: remotes/test
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. $TEST_DIR/remotes/functions
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test_unloading()
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{
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# No reader, writing
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assert_loaded
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# No reader, no writing
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echo 0 > tracing_on
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assert_unloaded
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# 1 reader, no writing
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cat trace_pipe &
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pid=$!
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sleep 1
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assert_loaded
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kill $pid
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assert_unloaded
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# No reader, no writing, events
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echo 1 > tracing_on
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echo 1 > write_event
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echo 0 > tracing_on
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assert_loaded
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# Test reset
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clear_trace
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assert_unloaded
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}
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if [ -z "$SOURCE_REMOTE_TEST" ]; then
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set -e
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setup_remote_test
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test_unloading
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fi
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