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(parent: a366e30) | patch
bpf: add support to read sample address in bpf program
authorTeng Qin <qinteng@fb.com>
Tue, 6 Mar 2018 18:55:01 +0000 (10:55 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 8 Mar 2018 01:22:34 +0000 (02:22 +0100)
commit95da0cdb723260362fc126a563285ac66a193da7
treedb1eb572476d510c1a2e06c18c3ad6d4a79a0060tree | snapshot
parenta366e300ae9fc466d333e6d8f2bc5d58ed248041commit | diff
bpf: add support to read sample address in bpf program

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>
include/uapi/linux/bpf_perf_event.h diff | blob | history
kernel/trace/bpf_trace.c diff | blob | history
John Crispins staging tree