From 8fa25f303adfed6eab921db8e242e59dd0b3b004 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 7 Aug 2018 15:10:19 -0300 Subject: perf bpf: Add wrappers to BPF_FUNC_probe_read(_str) functions Will be used shortly in the augmented syscalls work together with a PERF_COUNT_SW_BPF_OUTPUT software event to insert syscalls + pointer contents in the perf ring buffer, to be consumed by 'perf trace' beautifiers. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-ajlkpz4cd688ulx1u30htkj3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/include/bpf/bpf.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'tools') diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h index 1f632b56bb34..47897d65e799 100644 --- a/tools/perf/include/bpf/bpf.h +++ b/tools/perf/include/bpf/bpf.h @@ -30,4 +30,7 @@ struct bpf_map { char _license[] SEC("license") = #name; \ int _version SEC("version") = LINUX_VERSION_CODE; +static int (*probe_read)(void *dst, int size, const void *unsafe_addr) = (void *)BPF_FUNC_probe_read; +static int (*probe_read_str)(void *dst, int size, const void *unsafe_addr) = (void *)BPF_FUNC_probe_read_str; + #endif /* _PERF_BPF_H */ -- cgit v1.2.3-55-g7522