1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* This file is part of nvme-cli
*
* Copyright (c) 2022 Daniel Wagner, SUSE
*/
#include <dlfcn.h>
#include <libnvme.h>
#define PROTO(args...) args
#define ARGS(args...) args
#define VOID_FN(name, proto, args) \
void __attribute__((weak)) name(proto) \
{ \
void (*fn)(proto); \
fn = dlsym(RTLD_NEXT, #name); \
if (fn) \
fn(args); \
}
#define FN(name, rtype, proto, args, fallback) \
rtype __attribute__((weak)) name(proto) \
{ \
rtype (*fn)(proto); \
fn = dlsym(RTLD_NEXT, #name); \
if (fn) \
return fn(args); \
return fallback; \
}
FN(nvme_get_version,
const char *, PROTO(enum nvme_version type),
ARGS(type), "n/a")
VOID_FN(nvme_init_copy_range_f1,
PROTO(struct nvme_copy_range_f1 *copy, __u16 *nlbs,
__u64 *slbas, __u64 *eilbrts, __u32 *elbatms,
__u32 *elbats, __u16 nr),
ARGS(copy, nlbs, slbas, eilbrts, elbatms, elbats, nr))
|