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Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +02001/* For general debugging purposes */
2
3#include "../perf.h"
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +02004
Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +02005#include <string.h>
6#include <stdarg.h>
7#include <stdio.h>
8
Arnaldo Carvalho de Melof9224c52010-03-11 20:12:44 -03009#include "cache.h"
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020010#include "color.h"
11#include "event.h"
12#include "debug.h"
Arnaldo Carvalho de Melo4a58e612009-12-27 21:37:00 -020013#include "util.h"
Namhyung Kim16ad2ff2012-05-07 14:09:02 +090014#include "target.h"
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020015
Jiri Olsacee3ab92014-07-11 14:49:54 +020016#define NSECS_PER_SEC 1000000000ULL
17#define NSECS_PER_USEC 1000ULL
18
Arnaldo Carvalho de Melob44308f2010-10-26 15:20:09 -020019int verbose;
20bool dump_trace = false, quiet = false;
Jiri Olsacee3ab92014-07-11 14:49:54 +020021int debug_ordered_events;
Andi Kleenf78eaef2014-11-21 13:38:00 -080022static int redirect_to_stderr;
Jiri Olsaedbe9812015-02-20 23:17:00 +010023int debug_data_convert;
Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +020024
Jiri Olsac95688a2014-07-14 23:46:49 +020025static int _eprintf(int level, int var, const char *fmt, va_list args)
Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +020026{
Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +020027 int ret = 0;
28
Jiri Olsac95688a2014-07-14 23:46:49 +020029 if (var >= level) {
Andi Kleenf78eaef2014-11-21 13:38:00 -080030 if (use_browser >= 1 && !redirect_to_stderr)
Namhyung Kimb56e5332012-11-15 01:47:41 +090031 ui_helpline__vshow(fmt, args);
Arnaldo Carvalho de Melof9224c52010-03-11 20:12:44 -030032 else
33 ret = vfprintf(stderr, fmt, args);
Frederic Weisbeckercd84c2a2009-08-12 10:03:49 +020034 }
35
36 return ret;
37}
Frederic Weisbecker2cec19d2009-08-16 19:24:21 +020038
Jiri Olsac95688a2014-07-14 23:46:49 +020039int eprintf(int level, int var, const char *fmt, ...)
Jiri Olsaf772abc2013-12-03 14:09:25 +010040{
41 va_list args;
42 int ret;
43
44 va_start(args, fmt);
Jiri Olsac95688a2014-07-14 23:46:49 +020045 ret = _eprintf(level, var, fmt, args);
Jiri Olsaf772abc2013-12-03 14:09:25 +010046 va_end(args);
47
48 return ret;
49}
50
Jiri Olsacee3ab92014-07-11 14:49:54 +020051static int __eprintf_time(u64 t, const char *fmt, va_list args)
52{
53 int ret = 0;
54 u64 secs, usecs, nsecs = t;
55
56 secs = nsecs / NSECS_PER_SEC;
57 nsecs -= secs * NSECS_PER_SEC;
58 usecs = nsecs / NSECS_PER_USEC;
59
60 ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ",
61 secs, usecs);
62 ret += vfprintf(stderr, fmt, args);
63 return ret;
64}
65
66int eprintf_time(int level, int var, u64 t, const char *fmt, ...)
67{
68 int ret = 0;
69 va_list args;
70
71 if (var >= level) {
72 va_start(args, fmt);
73 ret = __eprintf_time(t, fmt, args);
74 va_end(args);
75 }
76
77 return ret;
78}
79
Jiri Olsaf772abc2013-12-03 14:09:25 +010080/*
81 * Overloading libtraceevent standard info print
82 * function, display with -v in perf.
83 */
84void pr_stat(const char *fmt, ...)
85{
86 va_list args;
87
88 va_start(args, fmt);
Jiri Olsac95688a2014-07-14 23:46:49 +020089 _eprintf(1, verbose, fmt, args);
Jiri Olsaf772abc2013-12-03 14:09:25 +010090 va_end(args);
Jiri Olsac95688a2014-07-14 23:46:49 +020091 eprintf(1, verbose, "\n");
Jiri Olsaf772abc2013-12-03 14:09:25 +010092}
93
Frederic Weisbecker2cec19d2009-08-16 19:24:21 +020094int dump_printf(const char *fmt, ...)
95{
96 va_list args;
97 int ret = 0;
98
99 if (dump_trace) {
100 va_start(args, fmt);
101 ret = vprintf(fmt, args);
102 va_end(args);
103 }
104
105 return ret;
106}
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200107
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200108void trace_event(union perf_event *event)
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200109{
110 unsigned char *raw_event = (void *)event;
111 const char *color = PERF_COLOR_BLUE;
112 int i, j;
113
114 if (!dump_trace)
115 return;
116
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200117 printf(".");
118 color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
119 event->header.size);
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200120
121 for (i = 0; i < event->header.size; i++) {
122 if ((i & 15) == 0) {
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200123 printf(".");
124 color_fprintf(stdout, color, " %04x: ", i);
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200125 }
126
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200127 color_fprintf(stdout, color, " %02x", raw_event[i]);
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200128
129 if (((i & 15) == 15) || i == event->header.size-1) {
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200130 color_fprintf(stdout, color, " ");
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200131 for (j = 0; j < 15-(i & 15); j++)
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200132 color_fprintf(stdout, color, " ");
Andy Isaacson84c104a2010-06-11 19:44:04 -0700133 for (j = i & ~15; j <= i; j++) {
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200134 color_fprintf(stdout, color, "%c",
135 isprint(raw_event[j]) ?
136 raw_event[j] : '.');
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200137 }
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200138 color_fprintf(stdout, color, "\n");
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200139 }
140 }
Arnaldo Carvalho de Melo5b1c1442010-11-30 17:48:53 -0200141 printf(".\n");
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +0200142}
Jiri Olsabbb2cea2014-07-17 12:55:00 +0200143
144static struct debug_variable {
145 const char *name;
146 int *ptr;
147} debug_variables[] = {
Jiri Olsacee3ab92014-07-11 14:49:54 +0200148 { .name = "verbose", .ptr = &verbose },
149 { .name = "ordered-events", .ptr = &debug_ordered_events},
Andi Kleenf78eaef2014-11-21 13:38:00 -0800150 { .name = "stderr", .ptr = &redirect_to_stderr},
Jiri Olsaedbe9812015-02-20 23:17:00 +0100151 { .name = "data-convert", .ptr = &debug_data_convert },
Jiri Olsabbb2cea2014-07-17 12:55:00 +0200152 { .name = NULL, }
153};
154
155int perf_debug_option(const char *str)
156{
157 struct debug_variable *var = &debug_variables[0];
158 char *vstr, *s = strdup(str);
159 int v = 1;
160
161 vstr = strchr(s, '=');
162 if (vstr)
163 *vstr++ = 0;
164
165 while (var->name) {
166 if (!strcmp(s, var->name))
167 break;
168 var++;
169 }
170
171 if (!var->name) {
172 pr_err("Unknown debug variable name '%s'\n", s);
173 free(s);
174 return -1;
175 }
176
177 if (vstr) {
178 v = atoi(vstr);
179 /*
180 * Allow only values in range (0, 10),
181 * otherwise set 0.
182 */
183 v = (v < 0) || (v > 10) ? 0 : v;
184 }
185
186 *var->ptr = v;
187 free(s);
188 return 0;
189}