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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
28 lines
643 B
C
28 lines
643 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_endian.h>
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#define TEST_COMM_LEN 16
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struct {
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__uint(type, BPF_MAP_TYPE_CGROUP_ARRAY);
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__uint(max_entries, 1);
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__type(key, u32);
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__type(value, u32);
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} cgroup_map SEC(".maps");
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char _license[] SEC("license") = "GPL";
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SEC("tc")
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int test_skb_helpers(struct __sk_buff *skb)
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{
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struct task_struct *task;
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char comm[TEST_COMM_LEN];
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__u32 tpid;
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task = (struct task_struct *)bpf_get_current_task();
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bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid);
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bpf_probe_read_kernel_str(&comm, sizeof(comm), &task->comm);
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return 0;
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}
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