selftests: bpf: test writable buffers in raw tps

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This tests that:
  * a BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE cannot be attached if it
    uses either:
    * a variable offset to the tracepoint buffer, or
    * an offset beyond the size of the tracepoint buffer
  * a tracer can modify the buffer provided when attached to a writable
    tracepoint in bpf_prog_test_run

Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Matt Mullins 2019-04-26 11:49:51 -07:00 • committed by Alexei Starovoitov

parent 4635b0ae4d

commit e950e84336

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include/trace/events/bpf_test_run.h

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