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c22bdd2825
Convert all SEC("classifier*") uses to a new and strict SEC("tc")
section name. In reference_tracking selftests switch from ambiguous
searching by program title (section name) to non-ambiguous searching by
name in some selftests, getting closer to completely removing
bpf_object__find_program_by_title().
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210928161946.2512801-4-andrii@kernel.org
66 lines
965 B
C
66 lines
965 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/* Copyright (c) 2020 Facebook */
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#include <stddef.h>
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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__attribute__ ((noinline))
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int f1(struct __sk_buff *skb)
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{
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return skb->len;
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}
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__attribute__ ((noinline))
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int f2(int val, struct __sk_buff *skb)
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{
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return f1(skb) + val;
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}
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__attribute__ ((noinline))
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int f3(int val, struct __sk_buff *skb, int var)
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{
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return f2(var, skb) + val;
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}
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__attribute__ ((noinline))
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int f4(struct __sk_buff *skb)
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{
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return f3(1, skb, 2);
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}
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__attribute__ ((noinline))
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int f5(struct __sk_buff *skb)
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{
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return f4(skb);
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}
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__attribute__ ((noinline))
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int f6(struct __sk_buff *skb)
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{
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return f5(skb);
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}
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__attribute__ ((noinline))
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int f7(struct __sk_buff *skb)
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{
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return f6(skb);
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}
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#ifndef NO_FN8
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__attribute__ ((noinline))
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int f8(struct __sk_buff *skb)
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{
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return f7(skb);
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}
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#endif
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SEC("tc")
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int test_cls(struct __sk_buff *skb)
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{
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#ifndef NO_FN8
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return f8(skb);
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#else
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return f7(skb);
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#endif
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}
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