From dd6e8312f53bf95210dedb80ae35b85d319f4c38 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Google)" Date: Wed, 20 Apr 2022 11:26:34 -0400 Subject: trace-cmd: Override tracecmd_debug() to show thread id To differentiate threads, have tracecmd_debug() show the thread id of the debug prints. Link: https://lore.kernel.org/linux-trace-devel/20220420152637.13105-9-rostedt@goodmis.org Link: https://lore.kernel.org/linux-trace-devel/20220417184538.1044417-9-rostedt@goodmis.org Signed-off-by: Steven Rostedt (Google) --- tracecmd/trace-cmd.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/tracecmd/trace-cmd.c b/tracecmd/trace-cmd.c index a83a8d0b..3f3e69a7 100644 --- a/tracecmd/trace-cmd.c +++ b/tracecmd/trace-cmd.c @@ -10,12 +10,17 @@ #include #include #include +#include #include "trace-local.h" int silence_warnings; int show_status; +#ifndef gettid +#define gettid() syscall(__NR_gettid) +#endif + void warning(const char *fmt, ...) { va_list ap; @@ -45,6 +50,19 @@ void *malloc_or_die(unsigned int size) return data; } +void tracecmd_debug(const char *fmt, ...) +{ + va_list ap; + + if (!tracecmd_get_debug()) + return; + + va_start(ap, fmt); + printf("[%d] ", (int)gettid()); + vprintf(fmt, ap); + va_end(ap); +} + static struct trace_log_severity { int id; const char *name; -- cgit v1.2.3