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selftests/bpf: remove last tests with legacy BPF map definitions 

Libbpf 1.0 stops support legacy-style BPF map definitions. Selftests has
been migrated away from using legacy BPF map definitions except for two
selftests, to make sure that legacy functionality still worked in
pre-1.0 libbpf. Now it's time to let those tests go as libbpf 1.0 is
imminent.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220627211527.2245459-14-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko 2022-06-27 14:15:25 -07:00 committed by Alexei Starovoitov
parent 450b167fb9
commit 31e4272197
4 changed files with 0 additions and 79 deletions
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9
tools/testing/selftests/bpf/bpf_legacy.h
View File

@ -2,15 +2,6 @@
#ifndef __BPF_LEGACY__
#define __BPF_LEGACY__
#define BPF_ANNOTATE_KV_PAIR(name, type_key, type_val) \
struct ____btf_map_##name { \
type_key key; \
type_val value; \
}; \
struct ____btf_map_##name \
__attribute__ ((section(".maps." #name), used)) \
____btf_map_##name = { }
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions
*/

1
tools/testing/selftests/bpf/prog_tests/btf.c
View File

@ -4651,7 +4651,6 @@ struct btf_file_test {
};
static struct btf_file_test file_tests[] = {
{ .file = "test_btf_haskv.o", },
{ .file = "test_btf_newkv.o", },
{ .file = "test_btf_nokv.o", .btf_kv_notfound = true, },
};

51
tools/testing/selftests/bpf/progs/test_btf_haskv.c
View File

@ -1,51 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2018 Facebook */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_legacy.h"
struct ipv_counts {
unsigned int v4;
unsigned int v6;
};
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
struct bpf_map_def SEC("maps") btf_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(int),
.value_size = sizeof(struct ipv_counts),
.max_entries = 4,
};
#pragma GCC diagnostic pop
BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts);
__attribute__((noinline))
int test_long_fname_2(void)
{
struct ipv_counts *counts;
int key = 0;
counts = bpf_map_lookup_elem(&btf_map, &key);
if (!counts)
return 0;
counts->v6++;
return 0;
}
__attribute__((noinline))
int test_long_fname_1(void)
{
return test_long_fname_2();
}
SEC("dummy_tracepoint")
int _dummy_tracepoint(void *arg)
{
return test_long_fname_1();
}
char _license[] SEC("license") = "GPL";

18
tools/testing/selftests/bpf/progs/test_btf_newkv.c
View File

@ -9,19 +9,6 @@ struct ipv_counts {
unsigned int v6;
};
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
/* just to validate we can handle maps in multiple sections */
struct bpf_map_def SEC("maps") btf_map_legacy = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(int),
.value_size = sizeof(long long),
.max_entries = 4,
};
#pragma GCC diagnostic pop
BPF_ANNOTATE_KV_PAIR(btf_map_legacy, int, struct ipv_counts);
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 4);
@ -41,11 +28,6 @@ int test_long_fname_2(void)
counts->v6++;
/* just verify we can reference both maps */
counts = bpf_map_lookup_elem(&btf_map_legacy, &key);
if (!counts)
return 0;
return 0;
}