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Date: Wed, 23 Sep 2020 18:19:48 -0700 From: Song Liu <songliubraving@...com> To: <netdev@...r.kernel.org>, <bpf@...r.kernel.org> CC: <kernel-team@...com>, <ast@...nel.org>, <daniel@...earbox.net>, <john.fastabend@...il.com>, <kpsingh@...omium.org>, Song Liu <songliubraving@...com> Subject: [PATCH v4 bpf-next 0/3] enable BPF_PROG_TEST_RUN for raw_tp This set enables BPF_PROG_TEST_RUN for raw_tracepoint type programs. This set also enables running the raw_tp program on a specific CPU. This feature can be used by user space to trigger programs that access percpu resources, e.g. perf_event, percpu variables. Changes v3 => v4: 1. Use cpu+flags instead of cpu_plus. (Andrii) 2. Rework libbpf support. (Andrii) Changes v2 => v3: 1. Fix memory leak in the selftest. (Andrii) 2. Use __u64 instead of unsigned long long. (Andrii) Changes v1 => v2: 1. More checks for retval in the selftest. (John) 2. Remove unnecessary goto in bpf_prog_test_run_raw_tp. (John) Song Liu (3): bpf: enable BPF_PROG_TEST_RUN for raw_tracepoint libbpf: introduce bpf_prog_test_run_xattr_opts selftests/bpf: add raw_tp_test_run Song Liu (3): bpf: enable BPF_PROG_TEST_RUN for raw_tracepoint libbpf: support test run of raw tracepoint programs selftests/bpf: add raw_tp_test_run include/linux/bpf.h | 3 + include/uapi/linux/bpf.h | 7 ++ kernel/bpf/syscall.c | 2 +- kernel/trace/bpf_trace.c | 1 + net/bpf/test_run.c | 89 +++++++++++++++++++ tools/include/uapi/linux/bpf.h | 7 ++ tools/lib/bpf/bpf.c | 31 +++++++ tools/lib/bpf/bpf.h | 26 ++++++ tools/lib/bpf/libbpf.map | 1 + tools/lib/bpf/libbpf_internal.h | 5 ++ .../bpf/prog_tests/raw_tp_test_run.c | 80 +++++++++++++++++ .../bpf/progs/test_raw_tp_test_run.c | 25 ++++++ 12 files changed, 276 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c create mode 100644 tools/testing/selftests/bpf/progs/test_raw_tp_test_run.c -- 2.24.1
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