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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-04-20 11:26:34 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-04-26 20:50:18 -0400 |
| commit | dd6e8312f53bf95210dedb80ae35b85d319f4c38 (patch) | |
| tree | 825fe7a07615e090d317448e5b7ff85092d2a8a4 | |
| parent | dfdea94546c26852f4879a8bb5a694a06ccdb6dd (diff) | |
| download | trace-cmd-dd6e8312f53bf95210dedb80ae35b85d319f4c38.tar.gz | |
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) <rostedt@goodmis.org>
| -rw-r--r-- | tracecmd/trace-cmd.c | 18 |
1 files changed, 18 insertions, 0 deletions
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 <dirent.h> #include <errno.h> #include <stdlib.h> +#include <sys/syscall.h> #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; |