diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_core_reloc_mods.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_core_reloc_mods.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c new file mode 100644 index 000000000..8b533db4a --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c @@ -0,0 +1,65 @@ +// 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_mods_output { + int a, b, c, d, e, f, g, h; +}; + +typedef const int int_t; +typedef const char *char_ptr_t; +typedef const int arr_t[7]; + +struct core_reloc_mods_substruct { + int x; + int y; +}; + +typedef struct { + int x; + int y; +} core_reloc_mods_substruct_t; + +struct core_reloc_mods { + int a; + int_t b; + char *c; + char_ptr_t d; + int e[3]; + arr_t f; + struct core_reloc_mods_substruct g; + core_reloc_mods_substruct_t h; +}; + +#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) + +SEC("raw_tracepoint/sys_enter") +int test_core_mods(void *ctx) +{ + struct core_reloc_mods *in = (void *)&data.in; + struct core_reloc_mods_output *out = (void *)&data.out; + + if (CORE_READ(&out->a, &in->a) || + CORE_READ(&out->b, &in->b) || + CORE_READ(&out->c, &in->c) || + CORE_READ(&out->d, &in->d) || + CORE_READ(&out->e, &in->e[2]) || + CORE_READ(&out->f, &in->f[1]) || + CORE_READ(&out->g, &in->g.x) || + CORE_READ(&out->h, &in->h.y)) + return 1; + + return 0; +} + |