Commit 8fa25f30 authored Aug 07, 2018 by Arnaldo Carvalho de Melo

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 <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ajlkpz4cd688ulx1u30htkj3@git.kernel.org

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent aa31be3a

tools/perf/include/bpf/bpf.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -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 */