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-rw-r--r--tools/perf/util/debug.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
new file mode 100644
index 00000000..155749d7
--- /dev/null
+++ b/tools/perf/util/debug.c
@@ -0,0 +1,104 @@
+/* For general debugging purposes */
+
+#include "../perf.h"
+
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "cache.h"
+#include "color.h"
+#include "event.h"
+#include "debug.h"
+#include "util.h"
+
+int verbose;
+bool dump_trace = false, quiet = false;
+
+int eprintf(int level, const char *fmt, ...)
+{
+ va_list args;
+ int ret = 0;
+
+ if (verbose >= level) {
+ va_start(args, fmt);
+ if (use_browser > 0)
+ ret = ui_helpline__show_help(fmt, args);
+ else
+ ret = vfprintf(stderr, fmt, args);
+ va_end(args);
+ }
+
+ return ret;
+}
+
+int dump_printf(const char *fmt, ...)
+{
+ va_list args;
+ int ret = 0;
+
+ if (dump_trace) {
+ va_start(args, fmt);
+ ret = vprintf(fmt, args);
+ va_end(args);
+ }
+
+ return ret;
+}
+
+#ifdef NO_NEWT_SUPPORT
+void ui__warning(const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+ vfprintf(stderr, format, args);
+ va_end(args);
+}
+#endif
+
+void ui__warning_paranoid(void)
+{
+ ui__warning("Permission error - are you root?\n"
+ "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
+ " -1 - Not paranoid at all\n"
+ " 0 - Disallow raw tracepoint access for unpriv\n"
+ " 1 - Disallow cpu events for unpriv\n"
+ " 2 - Disallow kernel profiling for unpriv\n");
+}
+
+void trace_event(union perf_event *event)
+{
+ unsigned char *raw_event = (void *)event;
+ const char *color = PERF_COLOR_BLUE;
+ int i, j;
+
+ if (!dump_trace)
+ return;
+
+ printf(".");
+ color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
+ event->header.size);
+
+ for (i = 0; i < event->header.size; i++) {
+ if ((i & 15) == 0) {
+ printf(".");
+ color_fprintf(stdout, color, " %04x: ", i);
+ }
+
+ color_fprintf(stdout, color, " %02x", raw_event[i]);
+
+ if (((i & 15) == 15) || i == event->header.size-1) {
+ color_fprintf(stdout, color, " ");
+ for (j = 0; j < 15-(i & 15); j++)
+ color_fprintf(stdout, color, " ");
+ for (j = i & ~15; j <= i; j++) {
+ color_fprintf(stdout, color, "%c",
+ isprint(raw_event[j]) ?
+ raw_event[j] : '.');
+ }
+ color_fprintf(stdout, color, "\n");
+ }
+ }
+ printf(".\n");
+}