bpf: support bpf_get_stackid() and bpf_perf_event_output() in tracepoint programs

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needs two wrapper functions to fetch 'struct pt_regs *' to convert
tracepoint bpf context into kprobe bpf context to reuse existing
helper functions

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexei Starovoitov 2016-04-06 18:43:27 -07:00 • committed by David S. Miller

parent 9fd82b610b

commit 9940d67c93

3 changed files with 43 additions and 2 deletions

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1

include/linux/bpf.h

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2

kernel/bpf/stackmap.c

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42

kernel/trace/bpf_trace.c

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