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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Stage 1
*
* Define function prototypes.
*/
#undef NAME
#define NAME(n, d, v)
#undef ENTRY
#define ENTRY(n, h, f, ...) \
static int f(int argc, char **argv, struct command *command, struct plugin *plugin);
#undef COMMAND_LIST
#define COMMAND_LIST(args...) args
#undef PLUGIN
#define PLUGIN(name, cmds) cmds
#include CMD_INCLUDE(CMD_INC_FILE)
/*
* Stage 2
*
* Define command structures.
*/
#undef NAME
#define NAME(n, d, v)
#undef ENTRY_W_ALIAS
#define ENTRY_W_ALIAS(n, h, f, a) \
static struct command f ## _cmd = { \
.name = n, \
.help = h, \
.fn = f, \
.alias = a, \
};
#undef ENTRY_WO_ALIAS
#define ENTRY_WO_ALIAS(n, h, f) \
ENTRY_W_ALIAS(n, h, f, NULL)
#undef ENTRY_SEL
#define ENTRY_SEL(n, h, f, a, CMD, ...) CMD
#undef ENTRY
#define ENTRY(...) \
ENTRY_SEL(__VA_ARGS__, ENTRY_W_ALIAS, ENTRY_WO_ALIAS)(__VA_ARGS__)
#undef COMMAND_LIST
#define COMMAND_LIST(args...) args
#undef PLUGIN
#define PLUGIN(name, cmds) cmds
#include CMD_INCLUDE(CMD_INC_FILE)
/*
* Stage 3
*
* Generate list of commands for the plugin.
*/
#undef NAME
#define NAME(n, d, v)
#undef ENTRY
#define ENTRY(n, h, f, ...) &f ## _cmd,
#undef COMMAND_LIST
#define COMMAND_LIST(args...) \
static struct command *commands[] = { \
args \
NULL, \
};
#undef PLUGIN
#define PLUGIN(name, cmds) cmds
#include CMD_INCLUDE(CMD_INC_FILE)
/*
* Stage 4
*
* Define and register plugin
*/
#undef NAME
#define NAME(n, d, v) .name = n, .desc = d, .version = v,
#undef COMMAND_LIST
#define COMMAND_LIST(args...)
#undef PLUGIN
#define PLUGIN(name, cmds) \
static struct plugin plugin = { \
name \
.commands = commands \
}; \
\
static void init(void) __attribute__((constructor)); \
static void init(void) \
{ \
register_extension(&plugin); \
}
#include CMD_INCLUDE(CMD_INC_FILE)
|