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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 
      9 #include "cache.h"
     10 #include "color.h"
     11 #include "event.h"
     12 #include "debug.h"
     13 #include "util.h"
     14 
     15 int verbose;
     16 bool dump_trace = false, quiet = false;
     17 
     18 int 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 
     35 int 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
     50 void 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 
     60 void 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 
     70 void 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 }
    105