bpf: add support to read sample address in bpf program

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This commit adds new field "addr" to bpf_perf_event_data which could be
read and used by bpf programs attached to perf events. The value of the
field is copied from bpf_perf_event_data_kern.addr and contains the
address value recorded by specifying sample_type with PERF_SAMPLE_ADDR
when calling perf_event_open.

Signed-off-by: Teng Qin <qinteng@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Teng Qin 2018-03-06 10:55:01 -08:00 • committed by Daniel Borkmann

parent a366e300ae

commit 95da0cdb72

2 changed files with 17 additions and 4 deletions

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include/uapi/linux/bpf_perf_event.h

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