Re: [Qemu-devel] [PATCH v5 10/10] rocker: timestamp on the debug logs helps correlate with events in the VM

[Jiri Pirko]

Thu, Jan 22, 2015 at 09:03:59AM CET, address@hidden wrote:
>From: David Ahern <address@hidden>
>
>Signed-off-by: David Ahern <address@hidden>
>Signed-off-by: Scott Feldman <address@hidden>

Signed-off-by: Jiri Pirko <address@hidden>


>---
> hw/net/rocker/rocker.h |   11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
>diff --git a/hw/net/rocker/rocker.h b/hw/net/rocker/rocker.h
>index ef77487..5ae8aff 100644
>--- a/hw/net/rocker/rocker.h
>+++ b/hw/net/rocker/rocker.h
>@@ -25,7 +25,16 @@
> 
> #if defined(DEBUG_ROCKER)
> #  define DPRINTF(fmt, ...) \
>-    do { fprintf(stderr, "ROCKER: " fmt, ## __VA_ARGS__); } while (0)
>+    do {                                                           \
>+        struct timeval tv;                                         \
>+        char timestr[64];                                          \
>+        time_t now;                                                \
>+        gettimeofday(&tv, NULL);                                   \
>+        now = tv.tv_sec;                                           \
>+        strftime(timestr, sizeof(timestr), "%T", localtime(&now)); \
>+        fprintf(stderr, "%s.%06ld ", timestr, tv.tv_usec);         \
>+        fprintf(stderr, "ROCKER: " fmt, ## __VA_ARGS__);           \
>+    } while (0)
> #else
> static inline GCC_FMT_ATTR(1, 2) int DPRINTF(const char *fmt, ...)
> {
>-- 
>1.7.10.4
>