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174fd82339
Add a simple testcase for trace_pipe which can consume ringbuffer. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
17 lines
422 B
Bash
17 lines
422 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: trace_pipe and trace_marker
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# flags: instance
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[ ! -f trace_marker ] && exit_unsupported
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echo "test input 1" > trace_marker
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: "trace interface never consume the ring buffer"
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grep -q "test input 1" trace
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grep -q "test input 1" trace
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: "trace interface never consume the ring buffer"
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head -n 1 trace_pipe | grep -q "test input 1"
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! grep -q "test input 1" trace
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