linux-kernel - Re: [PATCH 2/4] tools lib traceevent: Use USECS_PER

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Date:	Fri, 5 Aug 2016 15:15:28 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/4] tools lib traceevent: Use USECS_PER_SEC instead of
 hardcoded number

On Fri, 5 Aug 2016 15:36:55 -0300
Arnaldo Carvalho de Melo <acme@...nel.org> wrote:


> [acme@...et linux]$ cat tools/include/linux/time64.h 
> #ifndef _TOOLS_LINUX_TIME64_H
> #define _TOOLS_LINUX_TIME64_H
> 
> #define MSEC_PER_SEC	1000L
> #define USEC_PER_MSEC	1000L
> #define NSEC_PER_USEC	1000L
> #define NSEC_PER_MSEC	1000000L
> #define USEC_PER_SEC	1000000L
> #define NSEC_PER_SEC	1000000000L
> #define FSEC_PER_SEC	1000000000000000LL
> 
> #endif /* _TOOLS_LINUX_TIME64_H */
> [acme@...et linux]$ 
> 
> So the header to include is the same as in the kernel, the constants as
> well. We can go on adding more stuff from include/linux/time64.h as
> tools use it.

OK, can you modify the scripting-engines/trace-event-*.c to use that
too. I'm going to move the macros locally into event-parse.c, as I work
to make that ready to be a separate library.

Thanks!

-- Steve