On Thu, 7 Dec 2023 at 20:12, Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote: > > On Thu, Dec 7, 2023 at 8:35 AM Kyle Huey <me@xxxxxxxxxxxx> wrote: > > > > The test sets a hardware breakpoint and uses a bpf program to suppress the > > side effects of a perf event sample, including I/O availability signals, > > SIGTRAPs, and decrementing the event counter limit, if the ip matches the > > expected value. Then the function with the breakpoint is executed multiple > > times to test that all effects behave as expected. > > > > Signed-off-by: Kyle Huey <khuey@xxxxxxxxxxxx> > > --- > > .../selftests/bpf/prog_tests/perf_skip.c | 145 ++++++++++++++++++ > > .../selftests/bpf/progs/test_perf_skip.c | 15 ++ > > 2 files changed, 160 insertions(+) > > create mode 100644 tools/testing/selftests/bpf/prog_tests/perf_skip.c > > create mode 100644 tools/testing/selftests/bpf/progs/test_perf_skip.c > > > > diff --git a/tools/testing/selftests/bpf/prog_tests/perf_skip.c b/tools/testing/selftests/bpf/prog_tests/perf_skip.c > > new file mode 100644 > > index 000000000000..f6fa9bfd9efa > > --- /dev/null > > +++ b/tools/testing/selftests/bpf/prog_tests/perf_skip.c > > @@ -0,0 +1,145 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +#define _GNU_SOURCE > > + > > +/* We need the latest siginfo from the kernel repo. */ > > +#include <asm/siginfo.h> > > selftests are built with UAPI headers' copies under tools/include, so > CI did catch a real issue, I think. Try copying > include/uapi/asm-generic/siginfo.h into > tools/include/uapi/asm-generic/siginfo.h ? I believe parts of this were inspired by tools/testing/selftests/perf_events/sigtrap_threads.c - getting the kernel headers is allowed, as long as $(KHDR_INCLUDES) is added to CFLAGS. See tools/testing/selftests/perf_events/Makefile. Not sure it's appropriate for this test though, if you don't want to add KHDR_INCLUDES for everything.
