tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests/bpf: Use both syntaxes for field-based CO-RE helpers
Excercise both supported forms of bpf_core_field_exists() and
bpf_core_field_size() helpers: variable-based field reference and
type/field name-based one.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-5-andrii@kernel.org
authored by
Andrii Nakryiko
and committed by
Daniel Borkmann
2a4ca46b
73d0280f
+9
-10
+5
-6
tools/testing/selftests/bpf/progs/test_core_reloc_existence.c
+5
-6
tools/testing/selftests/bpf/progs/test_core_reloc_existence.c
···
45
45
struct core_reloc_existence_output *out = (void *)&data.out;
46
46
47
47
out->a_exists = bpf_core_field_exists(in->a);
48
-
if (bpf_core_field_exists(in->a))
48
+
if (bpf_core_field_exists(struct core_reloc_existence, a))
49
49
out->a_value = BPF_CORE_READ(in, a);
50
50
else
51
51
out->a_value = 0xff000001u;
52
52
53
53
out->b_exists = bpf_core_field_exists(in->b);
54
-
if (bpf_core_field_exists(in->b))
54
+
if (bpf_core_field_exists(struct core_reloc_existence, b))
55
55
out->b_value = BPF_CORE_READ(in, b);
56
56
else
57
57
out->b_value = 0xff000002u;
58
58
59
59
out->c_exists = bpf_core_field_exists(in->c);
60
-
if (bpf_core_field_exists(in->c))
60
+
if (bpf_core_field_exists(struct core_reloc_existence, c))
61
61
out->c_value = BPF_CORE_READ(in, c);
62
62
else
63
63
out->c_value = 0xff000003u;
64
64
65
65
out->arr_exists = bpf_core_field_exists(in->arr);
66
-
if (bpf_core_field_exists(in->arr))
66
+
if (bpf_core_field_exists(struct core_reloc_existence, arr))
67
67
out->arr_value = BPF_CORE_READ(in, arr[0]);
68
68
else
69
69
out->arr_value = 0xff000004u;
70
70
71
71
out->s_exists = bpf_core_field_exists(in->s);
72
-
if (bpf_core_field_exists(in->s))
72
+
if (bpf_core_field_exists(struct core_reloc_existence, s))
73
73
out->s_value = BPF_CORE_READ(in, s.x);
74
74
else
75
75
out->s_value = 0xff000005u;
76
76
77
77
return 0;
78
78
}
79
-
+4
-4
tools/testing/selftests/bpf/progs/test_core_reloc_size.c
+4
-4
tools/testing/selftests/bpf/progs/test_core_reloc_size.c
···
44
44
out->struct_sz = bpf_core_field_size(in->struct_field);
45
45
out->union_sz = bpf_core_field_size(in->union_field);
46
46
out->arr_sz = bpf_core_field_size(in->arr_field);
47
-
out->arr_elem_sz = bpf_core_field_size(in->arr_field[0]);
48
-
out->ptr_sz = bpf_core_field_size(in->ptr_field);
49
-
out->enum_sz = bpf_core_field_size(in->enum_field);
50
-
out->float_sz = bpf_core_field_size(in->float_field);
47
+
out->arr_elem_sz = bpf_core_field_size(struct core_reloc_size, arr_field[0]);
48
+
out->ptr_sz = bpf_core_field_size(struct core_reloc_size, ptr_field);
49
+
out->enum_sz = bpf_core_field_size(struct core_reloc_size, enum_field);
50
+
out->float_sz = bpf_core_field_size(struct core_reloc_size, float_field);
51
51
52
52
return 0;
53
53
}