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
110
111
112
113
114
|
/* This plugin tests the GGC related plugin events. */
/* { dg-options "-O" } */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "toplev.h"
#include "basic-block.h"
#include "gimple.h"
#include "tree.h"
#include "tree-pass.h"
#include "intl.h"
#include "gcc-plugin.h"
#include "plugin-version.h"
#include "diagnostic.h"
int plugin_is_GPL_compatible;
/* our callback is the same for all PLUGIN_GGC_START,
PLUGIN_GGC_MARKING, PLUGIN_GGC_END events; it just increments the
user_data which is an int */
static void increment_callback (void *gcc_data, void *user_data);
/* our counters are user_data */
static int our_ggc_start_counter;
static int our_ggc_end_counter;
static int our_ggc_marking_counter;
/* our empty GGC extra root table */
static const struct ggc_root_tab our_xtratab[] = {
LAST_GGC_ROOT_TAB
};
/* The initialization routine exposed to and called by GCC. The spec of this
function is defined in gcc/gcc-plugin.h.
Note that this function needs to be named exactly "plugin_init". */
int
plugin_init (struct plugin_name_args *plugin_info,
struct plugin_gcc_version *version)
{
const char *plugin_name = plugin_info->base_name;
int argc = plugin_info->argc;
int i = 0;
struct plugin_argument *argv = plugin_info->argv;
if (!plugin_default_version_check (version, &gcc_version))
return 1;
/* Process the plugin arguments. This plugin takes the following arguments:
count-ggc-start count-ggc-end count-ggc-mark */
for (i = 0; i < argc; ++i)
{
if (!strcmp (argv[i].key, "count-ggc-start"))
{
if (argv[i].value)
warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-start=%s'"
" ignored (superfluous '=%s')"),
plugin_name, argv[i].value, argv[i].value);
else
register_callback ("ggcplug",
PLUGIN_GGC_START,
increment_callback,
(void *) &our_ggc_start_counter);
}
else if (!strcmp (argv[i].key, "count-ggc-end"))
{
if (argv[i].value)
warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-end=%s'"
" ignored (superfluous '=%s')"),
plugin_name, argv[i].value, argv[i].value);
else
register_callback ("ggcplug",
PLUGIN_GGC_END,
increment_callback,
(void *) &our_ggc_end_counter);
}
else if (!strcmp (argv[i].key, "count-ggc-mark"))
{
if (argv[i].value)
warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-mark=%s'"
" ignored (superfluous '=%s')"),
plugin_name, argv[i].value, argv[i].value);
else
register_callback ("ggcplug",
PLUGIN_GGC_MARKING,
increment_callback,
(void *) &our_ggc_marking_counter);
}
else if (!strcmp (argv[i].key, "test-extra-root"))
{
if (argv[i].value)
warning (0, G_ ("option '-fplugin-arg-%s-test-extra-root=%s'"
" ignored (superfluous '=%s')"),
plugin_name, argv[i].value, argv[i].value);
else
register_callback ("ggcplug",
PLUGIN_REGISTER_GGC_ROOTS,
NULL,
(void *) our_xtratab);
}
}
/* plugin initialization succeeded */
return 0;
}
static void
increment_callback (void *gcc_data, void *user_data)
{
int *usercountptr = (int *) user_data;
gcc_assert (!gcc_data);
gcc_assert (user_data);
(*usercountptr)++;
}
|
