mirror of
https://github.com/torvalds/linux
synced 2024-10-19 09:49:29 +00:00
be80e9cdbc
It's confusing that libbpf-provided helper macro doesn't start with LIBBPF. Also "declare" vs "define" is confusing terminology, I can never remember and always have to look up previous examples. Bypass both issues by renaming DECLARE_LIBBPF_OPTS into a short and clean LIBBPF_OPTS. To avoid breaking existing code, provide: #define DECLARE_LIBBPF_OPTS LIBBPF_OPTS in libbpf_legacy.h. We can decide later if we ever want to remove it or we'll keep it forever because it doesn't add any maintainability burden. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Dave Marchevsky <davemarchevsky@fb.com> Link: https://lore.kernel.org/bpf/20211103220845.2676888-2-andrii@kernel.org
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
|
|
|
|
/*
|
|
* Libbpf legacy APIs (either discouraged or deprecated, as mentioned in [0])
|
|
*
|
|
* [0] https://docs.google.com/document/d/1UyjTZuPFWiPFyKk1tV5an11_iaRuec6U-ZESZ54nNTY
|
|
*
|
|
* Copyright (C) 2021 Facebook
|
|
*/
|
|
#ifndef __LIBBPF_LEGACY_BPF_H
|
|
#define __LIBBPF_LEGACY_BPF_H
|
|
|
|
#include <linux/bpf.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include "libbpf_common.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
enum libbpf_strict_mode {
|
|
/* Turn on all supported strict features of libbpf to simulate libbpf
|
|
* v1.0 behavior.
|
|
* This will be the default behavior in libbpf v1.0.
|
|
*/
|
|
LIBBPF_STRICT_ALL = 0xffffffff,
|
|
|
|
/*
|
|
* Disable any libbpf 1.0 behaviors. This is the default before libbpf
|
|
* v1.0. It won't be supported anymore in v1.0, please update your
|
|
* code so that it handles LIBBPF_STRICT_ALL mode before libbpf v1.0.
|
|
*/
|
|
LIBBPF_STRICT_NONE = 0x00,
|
|
/*
|
|
* Return NULL pointers on error, not ERR_PTR(err).
|
|
* Additionally, libbpf also always sets errno to corresponding Exx
|
|
* (positive) error code.
|
|
*/
|
|
LIBBPF_STRICT_CLEAN_PTRS = 0x01,
|
|
/*
|
|
* Return actual error codes from low-level APIs directly, not just -1.
|
|
* Additionally, libbpf also always sets errno to corresponding Exx
|
|
* (positive) error code.
|
|
*/
|
|
LIBBPF_STRICT_DIRECT_ERRS = 0x02,
|
|
|
|
/*
|
|
* Enforce strict BPF program section (SEC()) names.
|
|
* E.g., while prefiously SEC("xdp_whatever") or SEC("perf_event_blah") were
|
|
* allowed, with LIBBPF_STRICT_SEC_PREFIX this will become
|
|
* unrecognized by libbpf and would have to be just SEC("xdp") and
|
|
* SEC("xdp") and SEC("perf_event").
|
|
*
|
|
* Note, in this mode the program pin path will be based on the
|
|
* function name instead of section name.
|
|
*/
|
|
LIBBPF_STRICT_SEC_NAME = 0x04,
|
|
/*
|
|
* Disable the global 'bpf_objects_list'. Maintaining this list adds
|
|
* a race condition to bpf_object__open() and bpf_object__close().
|
|
* Clients can maintain it on their own if it is valuable for them.
|
|
*/
|
|
LIBBPF_STRICT_NO_OBJECT_LIST = 0x08,
|
|
|
|
__LIBBPF_STRICT_LAST,
|
|
};
|
|
|
|
LIBBPF_API int libbpf_set_strict_mode(enum libbpf_strict_mode mode);
|
|
|
|
#define DECLARE_LIBBPF_OPTS LIBBPF_OPTS
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* __LIBBPF_LEGACY_BPF_H */
|