e13b5f2f3b
Add 4 test cases to confirm the tailcall infinite loop bug has been fixed. Like tailcall_bpf2bpf cases, do fentry/fexit on the bpf2bpf, and then check the final count result. tools/testing/selftests/bpf/test_progs -t tailcalls 226/13 tailcalls/tailcall_bpf2bpf_fentry:OK 226/14 tailcalls/tailcall_bpf2bpf_fexit:OK 226/15 tailcalls/tailcall_bpf2bpf_fentry_fexit:OK 226/16 tailcalls/tailcall_bpf2bpf_fentry_entry:OK 226 tailcalls:OK Summary: 1/16 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <hffilwlqm@gmail.com> Link: https://lore.kernel.org/r/20230912150442.2009-4-hffilwlqm@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
18 lines
294 B
C
18 lines
294 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright Leon Hwang */
|
|
|
|
#include "vmlinux.h"
|
|
#include <bpf/bpf_helpers.h>
|
|
#include <bpf/bpf_tracing.h>
|
|
|
|
int count = 0;
|
|
|
|
SEC("fexit/subprog_tail")
|
|
int BPF_PROG(fexit, struct sk_buff *skb)
|
|
{
|
|
count++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|