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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* Debug counter for debugging support
Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>.
See dbgcnt.def for usage information. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "diagnostic-core.h"
#include "dumpfile.h"
#include "dbgcnt.h"
struct string2counter_map {
const char *name;
enum debug_counter counter;
};
#define DEBUG_COUNTER(a) { #a , a },
static struct string2counter_map map[debug_counter_number_of_counters] =
{
#include "dbgcnt.def"
};
#undef DEBUG_COUNTER
#define DEBUG_COUNTER(a) UINT_MAX,
static unsigned int limit[debug_counter_number_of_counters] =
{
#include "dbgcnt.def"
};
#undef DEBUG_COUNTER
static unsigned int count[debug_counter_number_of_counters];
bool
dbg_cnt_is_enabled (enum debug_counter index)
{
return count[index] <= limit[index];
}
bool
dbg_cnt (enum debug_counter index)
{
count[index]++;
if (dump_file && count[index] == limit[index])
fprintf (dump_file, "***dbgcnt: limit reached for %s.***\n",
map[index].name);
return dbg_cnt_is_enabled (index);
}
static void
dbg_cnt_set_limit_by_index (enum debug_counter index, int value)
{
limit[index] = value;
fprintf (stderr, "dbg_cnt '%s' set to %d\n", map[index].name, value);
}
static bool
dbg_cnt_set_limit_by_name (const char *name, int len, int value)
{
int i;
for (i = debug_counter_number_of_counters - 1; i >= 0; i--)
if (strncmp (map[i].name, name, len) == 0
&& map[i].name[len] == '\0')
break;
if (i < 0)
return false;
dbg_cnt_set_limit_by_index ((enum debug_counter) i, value);
return true;
}
/* Process a single "name:value" pair.
Returns NULL if there's no valid pair is found.
Otherwise returns a pointer to the end of the pair. */
static const char *
dbg_cnt_process_single_pair (const char *arg)
{
const char *colon = strchr (arg, ':');
char *endptr = NULL;
int value;
if (colon == NULL)
return NULL;
value = strtol (colon + 1, &endptr, 10);
if (endptr != NULL && endptr != colon + 1
&& dbg_cnt_set_limit_by_name (arg, colon - arg, value))
return endptr;
return NULL;
}
void
dbg_cnt_process_opt (const char *arg)
{
const char *start = arg;
const char *next;
do {
next = dbg_cnt_process_single_pair (arg);
if (next == NULL)
break;
} while (*next == ',' && (arg = next + 1));
if (next == NULL || *next != 0)
{
char *buffer = XALLOCAVEC (char, arg - start + 2);
sprintf (buffer, "%*c", (int)(1 + (arg - start)), '^');
error ("cannot find a valid counter:value pair:");
error ("-fdbg-cnt=%s", start);
error (" %s", buffer);
}
}
/* Print name, limit and count of all counters. */
void
dbg_cnt_list_all_counters (void)
{
int i;
printf (" %-30s %-5s %-5s\n", "counter name", "limit", "value");
printf ("----------------------------------------------\n");
for (i = 0; i < debug_counter_number_of_counters; i++)
printf (" %-30s %5d %5u\n",
map[i].name, limit[map[i].counter], count[map[i].counter]);
printf ("\n");
}
|
