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1/* For general debugging purposes */
2
3#include "../perf.h"
4
5#include <string.h>
6#include <stdarg.h>
7#include <stdio.h>
8#include <api/debug.h>
9
10#include "cache.h"
11#include "color.h"
12#include "event.h"
13#include "debug.h"
14#include "util.h"
15#include "target.h"
16
17#define NSECS_PER_SEC 1000000000ULL
18#define NSECS_PER_USEC 1000ULL
19
20int verbose;
21bool dump_trace = false, quiet = false;
22int debug_ordered_events;
23static int redirect_to_stderr;
24int debug_data_convert;
25
26int veprintf(int level, int var, const char *fmt, va_list args)
27{
28 int ret = 0;
29
30 if (var >= level) {
31 if (use_browser >= 1 && !redirect_to_stderr)
32 ui_helpline__vshow(fmt, args);
33 else
34 ret = vfprintf(stderr, fmt, args);
35 }
36
37 return ret;
38}
39
40int eprintf(int level, int var, const char *fmt, ...)
41{
42 va_list args;
43 int ret;
44
45 va_start(args, fmt);
46 ret = veprintf(level, var, fmt, args);
47 va_end(args);
48
49 return ret;
50}
51
52static int veprintf_time(u64 t, const char *fmt, va_list args)
53{
54 int ret = 0;
55 u64 secs, usecs, nsecs = t;
56
57 secs = nsecs / NSECS_PER_SEC;
58 nsecs -= secs * NSECS_PER_SEC;
59 usecs = nsecs / NSECS_PER_USEC;
60
61 ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ",
62 secs, usecs);
63 ret += vfprintf(stderr, fmt, args);
64 return ret;
65}
66
67int eprintf_time(int level, int var, u64 t, const char *fmt, ...)
68{
69 int ret = 0;
70 va_list args;
71
72 if (var >= level) {
73 va_start(args, fmt);
74 ret = veprintf_time(t, fmt, args);
75 va_end(args);
76 }
77
78 return ret;
79}
80
81/*
82 * Overloading libtraceevent standard info print
83 * function, display with -v in perf.
84 */
85void pr_stat(const char *fmt, ...)
86{
87 va_list args;
88
89 va_start(args, fmt);
90 veprintf(1, verbose, fmt, args);
91 va_end(args);
92 eprintf(1, verbose, "\n");
93}
94
95int dump_printf(const char *fmt, ...)
96{
97 va_list args;
98 int ret = 0;
99
100 if (dump_trace) {
101 va_start(args, fmt);
102 ret = vprintf(fmt, args);
103 va_end(args);
104 }
105
106 return ret;
107}
108
109static void trace_event_printer(enum binary_printer_ops op,
110 unsigned int val, void *extra)
111{
112 const char *color = PERF_COLOR_BLUE;
113 union perf_event *event = (union perf_event *)extra;
114 unsigned char ch = (unsigned char)val;
115
116 switch (op) {
117 case BINARY_PRINT_DATA_BEGIN:
118 printf(".");
119 color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
120 event->header.size);
121 break;
122 case BINARY_PRINT_LINE_BEGIN:
123 printf(".");
124 break;
125 case BINARY_PRINT_ADDR:
126 color_fprintf(stdout, color, " %04x: ", val);
127 break;
128 case BINARY_PRINT_NUM_DATA:
129 color_fprintf(stdout, color, " %02x", val);
130 break;
131 case BINARY_PRINT_NUM_PAD:
132 color_fprintf(stdout, color, " ");
133 break;
134 case BINARY_PRINT_SEP:
135 color_fprintf(stdout, color, " ");
136 break;
137 case BINARY_PRINT_CHAR_DATA:
138 color_fprintf(stdout, color, "%c",
139 isprint(ch) ? ch : '.');
140 break;
141 case BINARY_PRINT_CHAR_PAD:
142 color_fprintf(stdout, color, " ");
143 break;
144 case BINARY_PRINT_LINE_END:
145 color_fprintf(stdout, color, "\n");
146 break;
147 case BINARY_PRINT_DATA_END:
148 printf("\n");
149 break;
150 default:
151 break;
152 }
153}
154
155void trace_event(union perf_event *event)
156{
157 unsigned char *raw_event = (void *)event;
158
159 if (!dump_trace)
160 return;
161
162 print_binary(raw_event, event->header.size, 16,
163 trace_event_printer, event);
164}
165
166static struct debug_variable {
167 const char *name;
168 int *ptr;
169} debug_variables[] = {
170 { .name = "verbose", .ptr = &verbose },
171 { .name = "ordered-events", .ptr = &debug_ordered_events},
172 { .name = "stderr", .ptr = &redirect_to_stderr},
173 { .name = "data-convert", .ptr = &debug_data_convert },
174 { .name = NULL, }
175};
176
177int perf_debug_option(const char *str)
178{
179 struct debug_variable *var = &debug_variables[0];
180 char *vstr, *s = strdup(str);
181 int v = 1;
182
183 vstr = strchr(s, '=');
184 if (vstr)
185 *vstr++ = 0;
186
187 while (var->name) {
188 if (!strcmp(s, var->name))
189 break;
190 var++;
191 }
192
193 if (!var->name) {
194 pr_err("Unknown debug variable name '%s'\n", s);
195 free(s);
196 return -1;
197 }
198
199 if (vstr) {
200 v = atoi(vstr);
201 /*
202 * Allow only values in range (0, 10),
203 * otherwise set 0.
204 */
205 v = (v < 0) || (v > 10) ? 0 : v;
206 }
207
208 *var->ptr = v;
209 free(s);
210 return 0;
211}
212
213#define DEBUG_WRAPPER(__n, __l) \
214static int pr_ ## __n ## _wrapper(const char *fmt, ...) \
215{ \
216 va_list args; \
217 int ret; \
218 \
219 va_start(args, fmt); \
220 ret = veprintf(__l, verbose, fmt, args); \
221 va_end(args); \
222 return ret; \
223}
224
225DEBUG_WRAPPER(warning, 0);
226DEBUG_WRAPPER(debug, 1);
227
228void perf_debug_setup(void)
229{
230 libapi_set_print(pr_warning_wrapper, pr_warning_wrapper, pr_debug_wrapper);
231}
1/* For general debugging purposes */
2
3#include "../perf.h"
4
5#include <string.h>
6#include <stdarg.h>
7#include <stdio.h>
8
9#include "cache.h"
10#include "color.h"
11#include "event.h"
12#include "debug.h"
13#include "util.h"
14
15int verbose;
16bool dump_trace = false, quiet = false;
17
18int eprintf(int level, const char *fmt, ...)
19{
20 va_list args;
21 int ret = 0;
22
23 if (verbose >= level) {
24 va_start(args, fmt);
25 if (use_browser > 0)
26 ret = ui_helpline__show_help(fmt, args);
27 else
28 ret = vfprintf(stderr, fmt, args);
29 va_end(args);
30 }
31
32 return ret;
33}
34
35int dump_printf(const char *fmt, ...)
36{
37 va_list args;
38 int ret = 0;
39
40 if (dump_trace) {
41 va_start(args, fmt);
42 ret = vprintf(fmt, args);
43 va_end(args);
44 }
45
46 return ret;
47}
48
49#ifdef NO_NEWT_SUPPORT
50void ui__warning(const char *format, ...)
51{
52 va_list args;
53
54 va_start(args, format);
55 vfprintf(stderr, format, args);
56 va_end(args);
57}
58#endif
59
60void ui__warning_paranoid(void)
61{
62 ui__warning("Permission error - are you root?\n"
63 "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
64 " -1 - Not paranoid at all\n"
65 " 0 - Disallow raw tracepoint access for unpriv\n"
66 " 1 - Disallow cpu events for unpriv\n"
67 " 2 - Disallow kernel profiling for unpriv\n");
68}
69
70void trace_event(union perf_event *event)
71{
72 unsigned char *raw_event = (void *)event;
73 const char *color = PERF_COLOR_BLUE;
74 int i, j;
75
76 if (!dump_trace)
77 return;
78
79 printf(".");
80 color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
81 event->header.size);
82
83 for (i = 0; i < event->header.size; i++) {
84 if ((i & 15) == 0) {
85 printf(".");
86 color_fprintf(stdout, color, " %04x: ", i);
87 }
88
89 color_fprintf(stdout, color, " %02x", raw_event[i]);
90
91 if (((i & 15) == 15) || i == event->header.size-1) {
92 color_fprintf(stdout, color, " ");
93 for (j = 0; j < 15-(i & 15); j++)
94 color_fprintf(stdout, color, " ");
95 for (j = i & ~15; j <= i; j++) {
96 color_fprintf(stdout, color, "%c",
97 isprint(raw_event[j]) ?
98 raw_event[j] : '.');
99 }
100 color_fprintf(stdout, color, "\n");
101 }
102 }
103 printf(".\n");
104}