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selftests/bpf: Create task_local_storage map with invalid uptr's struct

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This patch tests the map creation failure when the map_value
has unsupported uptr. The three cases are the struct is larger
than one page, the struct is empty, and the struct is a kernel struct.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20241023234759.860539-13-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Martin KaFai Lau
2024-10-23 16:47:59 -07:00
committed by Alexei Starovoitov
parent 898cbca4a7
commit bd5879a6fe
4 changed files with 104 additions and 0 deletions
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23
tools/testing/selftests/bpf/uptr_test_common.h
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@@ -5,9 +5,12 @@
#define _UPTR_TEST_COMMON_H
#define MAGIC_VALUE 0xabcd1234
#define PAGE_SIZE 4096
#ifdef __BPF__
/* Avoid fwd btf type being generated for the following struct */
struct large_data *dummy_large_data;
struct empty_data *dummy_empty_data;
struct user_data *dummy_data;
struct cgroup *dummy_cgrp;
#else
@@ -37,4 +40,24 @@ struct value_lock_type {
struct bpf_spin_lock lock;
};
struct large_data {
__u8 one_page[PAGE_SIZE];
int a;
};
struct large_uptr {
struct large_data __uptr *udata;
};
struct empty_data {
};
struct empty_uptr {
struct empty_data __uptr *udata;
};
struct kstruct_uptr {
struct cgroup __uptr *cgrp;
};
#endif