1 files changed, 31 insertions, 48 deletions

diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
index 3b9dbf7433f0..596536def43d 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
@@ -2,75 +2,58 @@
 /* Copyright (c) 2019 Facebook */
 #include <test_progs.h>
 
-/* x86-64 fits 55 JITed and 43 interpreted progs into half page */
-#define CNT 40
-
-void test_fexit_stress(void)
+void serial_test_fexit_stress(void)
 {
-	char test_skb[128] = {};
-	int fexit_fd[CNT] = {};
-	int link_fd[CNT] = {};
-	__u32 duration = 0;
-	char error[4096];
-	__u32 prog_ret;
-	int err, i, filter_fd;
+	int bpf_max_tramp_links, err, i;
+	int *fd, *fexit_fd, *link_fd;
+
+	bpf_max_tramp_links = get_bpf_max_tramp_links();
+	if (!ASSERT_GE(bpf_max_tramp_links, 1, "bpf_max_tramp_links"))
+		return;
+	fd = calloc(bpf_max_tramp_links * 2, sizeof(*fd));
+	if (!ASSERT_OK_PTR(fd, "fd"))
+		return;
+	fexit_fd = fd;
+	link_fd = fd + bpf_max_tramp_links;
 
 	const struct bpf_insn trace_program[] = {
 		BPF_MOV64_IMM(BPF_REG_0, 0),
 		BPF_EXIT_INSN(),
 	};
 
-	struct bpf_load_program_attr load_attr = {
-		.prog_type = BPF_PROG_TYPE_TRACING,
-		.license = "GPL",
-		.insns = trace_program,
-		.insns_cnt = sizeof(trace_program) / sizeof(struct bpf_insn),
+	LIBBPF_OPTS(bpf_prog_load_opts, trace_opts,
 		.expected_attach_type = BPF_TRACE_FEXIT,
-	};
+	);
 
-	const struct bpf_insn skb_program[] = {
-		BPF_MOV64_IMM(BPF_REG_0, 0),
-		BPF_EXIT_INSN(),
-	};
-
-	struct bpf_load_program_attr skb_load_attr = {
-		.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
-		.license = "GPL",
-		.insns = skb_program,
-		.insns_cnt = sizeof(skb_program) / sizeof(struct bpf_insn),
-	};
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
 
 	err = libbpf_find_vmlinux_btf_id("bpf_fentry_test1",
-					 load_attr.expected_attach_type);
-	if (CHECK(err <= 0, "find_vmlinux_btf_id", "failed: %d\n", err))
+					 trace_opts.expected_attach_type);
+	if (!ASSERT_GT(err, 0, "find_vmlinux_btf_id"))
 		goto out;
-	load_attr.attach_btf_id = err;
-
-	for (i = 0; i < CNT; i++) {
-		fexit_fd[i] = bpf_load_program_xattr(&load_attr, error, sizeof(error));
-		if (CHECK(fexit_fd[i] < 0, "fexit loaded",
-			  "failed: %d errno %d\n", fexit_fd[i], errno))
+	trace_opts.attach_btf_id = err;
+
+	for (i = 0; i < bpf_max_tramp_links; i++) {
+		fexit_fd[i] = bpf_prog_load(BPF_PROG_TYPE_TRACING, NULL, "GPL",
+					    trace_program,
+					    sizeof(trace_program) / sizeof(struct bpf_insn),
+					    &trace_opts);
+		if (!ASSERT_GE(fexit_fd[i], 0, "fexit load"))
 			goto out;
-		link_fd[i] = bpf_raw_tracepoint_open(NULL, fexit_fd[i]);
-		if (CHECK(link_fd[i] < 0, "fexit attach failed",
-			  "prog %d failed: %d err %d\n", i, link_fd[i], errno))
+		link_fd[i] = bpf_link_create(fexit_fd[i], 0, BPF_TRACE_FEXIT, NULL);
+		if (!ASSERT_GE(link_fd[i], 0, "fexit attach"))
 			goto out;
 	}
 
-	filter_fd = bpf_load_program_xattr(&skb_load_attr, error, sizeof(error));
-	if (CHECK(filter_fd < 0, "test_program_loaded", "failed: %d errno %d\n",
-		  filter_fd, errno))
-		goto out;
+	err = bpf_prog_test_run_opts(fexit_fd[0], &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
 
-	err = bpf_prog_test_run(filter_fd, 1, test_skb, sizeof(test_skb), 0,
-				0, &prog_ret, 0);
-	close(filter_fd);
-	CHECK_FAIL(err);
 out:
-	for (i = 0; i < CNT; i++) {
+	for (i = 0; i < bpf_max_tramp_links; i++) {
 		if (link_fd[i])
 			close(link_fd[i]);
 		if (fexit_fd[i])
 			close(fexit_fd[i]);
 	}
+	free(fd);
 }