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baddab891a
Avoid use of tools/perf/include/bpf/bpf.h and use the more regular BPF headers. Add raw_syscalls:sys_enter to avoid the evlist being empty. Committer testing: # time perf trace -e ~acme/git/perf/tools/perf/examples/bpf/empty.c sleep 5 real 0m5.697s user 0m0.217s sys 0m0.453s # I.e. it sets up everything successfully (use -v to see the details) and filters out all syscalls, then exits when the workload (sleep 5) finishes. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20221103045437.163510-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
12 lines
249 B
C
12 lines
249 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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struct syscall_enter_args;
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SEC("raw_syscalls:sys_enter")
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int sys_enter(struct syscall_enter_args *args)
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{
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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