From 97ee4d20ee67eb462581a7af01442de6586e390b Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 16 Mar 2022 13:24:11 +0100 Subject: bpf: Add support to inline bpf_get_func_ip helper on x86 Adding support to inline it on x86, because it's single load instruction. Signed-off-by: Jiri Olsa Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20220316122419.933957-6-jolsa@kernel.org --- kernel/trace/bpf_trace.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/trace/bpf_trace.c') diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 250750932228..0e7f8c9bc756 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1039,6 +1039,7 @@ static const struct bpf_func_proto bpf_get_func_ip_proto_kprobe = { BPF_CALL_1(bpf_get_func_ip_kprobe_multi, struct pt_regs *, regs) { + /* This helper call is inlined by verifier on x86. */ return instruction_pointer(regs); } -- cgit v1.2.3