From 7f0059b58f0257d895fafd2f2e3afe3bbdf21e64 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Mon, 21 Mar 2022 21:54:19 -0700 Subject: [PATCH] selftests/bpf: Fix kprobe_multi test. When compiler emits endbr insn the function address could be different than what bpf_get_func_ip() reports. This is a short term workaround. bpf_get_func_ip() will be fixed later. Signed-off-by: Alexei Starovoitov --- tools/testing/selftests/bpf/progs/kprobe_multi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi.c b/tools/testing/selftests/bpf/progs/kprobe_multi.c index af27d2c6fce8d..600be50800f83 100644 --- a/tools/testing/selftests/bpf/progs/kprobe_multi.c +++ b/tools/testing/selftests/bpf/progs/kprobe_multi.c @@ -36,13 +36,15 @@ __u64 kretprobe_test6_result = 0; __u64 kretprobe_test7_result = 0; __u64 kretprobe_test8_result = 0; +extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak; + static void kprobe_multi_check(void *ctx, bool is_return) { if (bpf_get_current_pid_tgid() >> 32 != pid) return; __u64 cookie = test_cookie ? bpf_get_attach_cookie(ctx) : 0; - __u64 addr = bpf_get_func_ip(ctx); + __u64 addr = bpf_get_func_ip(ctx) - (CONFIG_X86_KERNEL_IBT ? 4 : 0); #define SET(__var, __addr, __cookie) ({ \ if (((const void *) addr == __addr) && \ -- 2.30.2