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-rw-r--r--tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c
new file mode 100644
index 000000000..51b3f79df
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+ char in[256];
+ char out[256];
+} data = {};
+
+struct core_reloc_arrays_output {
+ int a2;
+ char b123;
+ int c1c;
+ int d00d;
+ int f01c;
+};
+
+struct core_reloc_arrays_substruct {
+ int c;
+ int d;
+};
+
+struct core_reloc_arrays {
+ int a[5];
+ char b[2][3][4];
+ struct core_reloc_arrays_substruct c[3];
+ struct core_reloc_arrays_substruct d[1][2];
+ struct core_reloc_arrays_substruct f[][2];
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_arrays(void *ctx)
+{
+ struct core_reloc_arrays *in = (void *)&data.in;
+ struct core_reloc_arrays_output *out = (void *)&data.out;
+
+ if (CORE_READ(&out->a2, &in->a[2]))
+ return 1;
+ if (CORE_READ(&out->b123, &in->b[1][2][3]))
+ return 1;
+ if (CORE_READ(&out->c1c, &in->c[1].c))
+ return 1;
+ if (CORE_READ(&out->d00d, &in->d[0][0].d))
+ return 1;
+ if (CORE_READ(&out->f01c, &in->f[0][1].c))
+ return 1;
+
+ return 0;
+}
+