Resguardo inicial

linux-7.2.3/tools/testing/selftests/bpf/progs/test_signed_loader.c

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+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+/*
+ * Minimal, map-less program. Driven through libbpf's gen_loader (gen_hash)
+ * by prog_tests/signed_loader.c so the generated light-skeleton loader (with
+ * the emit_signature_match metadata check) can be exercised against good
+ * and tampered metadata. A socket filter needs no load-time attach resolution,
+ * and having no maps keeps the generated loader's ctx trivial (0 maps, 1 prog).
+ */
+SEC("socket")
+int probe(void *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";