3e689141e6
Fix all selftests to include libbpf header files with the bpf/ prefix, to
be consistent with external users of the library. Also ensure that all
includes of exported libbpf header files (those that are exported on 'make
install' of the library) use bracketed includes instead of quoted.
To not break the build, keep the old include path until everything has been
changed to the new one; a subsequent patch will remove that.
Fixes: 6910d7d3867a ("selftests/bpf: Ensure bpf_helper_defs.h are taken from selftests dir")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/157952560568.1683545.9649335788846513446.stgit@toke.dk
41 lines
892 B
C
41 lines
892 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2018 Facebook
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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struct {
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__uint(type, BPF_MAP_TYPE_ARRAY);
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__uint(max_entries, 1);
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__type(key, __u32);
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__type(value, __u64);
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} cg_ids SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_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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} pidmap SEC(".maps");
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SEC("tracepoint/syscalls/sys_enter_nanosleep")
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int trace(void *ctx)
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{
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__u32 pid = bpf_get_current_pid_tgid();
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__u32 key = 0, *expected_pid;
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__u64 *val;
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expected_pid = bpf_map_lookup_elem(&pidmap, &key);
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if (!expected_pid || *expected_pid != pid)
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return 0;
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val = bpf_map_lookup_elem(&cg_ids, &key);
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if (val)
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*val = bpf_get_current_cgroup_id();
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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__u32 _version SEC("version") = 1; /* ignored by tracepoints, required by libbpf.a */
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