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Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c new file mode 100644 index 000000000..ca61a5183 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c @@ -0,0 +1,33 @@ +// 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_ptr_as_arr { + int a; +}; + +#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) + +SEC("raw_tracepoint/sys_enter") +int test_core_ptr_as_arr(void *ctx) +{ + struct core_reloc_ptr_as_arr *in = (void *)&data.in; + struct core_reloc_ptr_as_arr *out = (void *)&data.out; + + if (CORE_READ(&out->a, &in[2].a)) + return 1; + + return 0; +} + |