Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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#include "target.h"
15
16int verbose;
17bool dump_trace = false, quiet = false;
18
19int eprintf(int level, const char *fmt, ...)
20{
21 va_list args;
22 int ret = 0;
23
24 if (verbose >= level) {
25 va_start(args, fmt);
26 if (use_browser > 0)
27 ret = ui_helpline__show_help(fmt, args);
28 else
29 ret = vfprintf(stderr, fmt, args);
30 va_end(args);
31 }
32
33 return ret;
34}
35
36int dump_printf(const char *fmt, ...)
37{
38 va_list args;
39 int ret = 0;
40
41 if (dump_trace) {
42 va_start(args, fmt);
43 ret = vprintf(fmt, args);
44 va_end(args);
45 }
46
47 return ret;
48}
49
50#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
51int ui__warning(const char *format, ...)
52{
53 va_list args;
54
55 va_start(args, format);
56 vfprintf(stderr, format, args);
57 va_end(args);
58 return 0;
59}
60#endif
61
62int ui__error_paranoid(void)
63{
64 return ui__error("Permission error - are you root?\n"
65 "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
66 " -1 - Not paranoid at all\n"
67 " 0 - Disallow raw tracepoint access for unpriv\n"
68 " 1 - Disallow cpu events for unpriv\n"
69 " 2 - Disallow kernel profiling for unpriv\n");
70}
71
72void trace_event(union perf_event *event)
73{
74 unsigned char *raw_event = (void *)event;
75 const char *color = PERF_COLOR_BLUE;
76 int i, j;
77
78 if (!dump_trace)
79 return;
80
81 printf(".");
82 color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
83 event->header.size);
84
85 for (i = 0; i < event->header.size; i++) {
86 if ((i & 15) == 0) {
87 printf(".");
88 color_fprintf(stdout, color, " %04x: ", i);
89 }
90
91 color_fprintf(stdout, color, " %02x", raw_event[i]);
92
93 if (((i & 15) == 15) || i == event->header.size-1) {
94 color_fprintf(stdout, color, " ");
95 for (j = 0; j < 15-(i & 15); j++)
96 color_fprintf(stdout, color, " ");
97 for (j = i & ~15; j <= i; j++) {
98 color_fprintf(stdout, color, "%c",
99 isprint(raw_event[j]) ?
100 raw_event[j] : '.');
101 }
102 color_fprintf(stdout, color, "\n");
103 }
104 }
105 printf(".\n");
106}