Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1275927

Re: [PATCH v2] tools lib traceevents: Fix output of %llu for 64 bit values read on 32 bit machines

Show all headers | View raw

Em Mon, Nov 16, 2015 at 05:25:16PM -0500, Steven Rostedt escreveu:
> 
> When a long value is read on 32 bit machines for 64 bit output, the parsing
> needs to change "%lu" into "%llu", as the value is read natively.
> 
> Unfortunately, if "%llu" is already there, the code will add another "l" to
> it and fail to parse it properly.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
> ---
> diff --git a/event-parse.c b/event-parse.c
> index 0a30253..ee5b720 100644
> --- a/event-parse.c
> +++ b/event-parse.c

Applied, after reusing this from Namhyung's patch:

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c

:-)

> @@ -4828,13 +4828,12 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
>  				    sizeof(long) != 8) {
>  					char *p;
>  
> -					ls = 2;
>  					/* make %l into %ll */
> -					p = strchr(format, 'l');
> -					if (p)
> +					if (ls == 1 && (p = strchr(format, 'l')))
>  						memmove(p+1, p, strlen(p)+1);
>  					else if (strcmp(format, "%p") == 0)
>  						strcpy(format, "0x%llx");
> +					ls = 2;
>  				}
>  				switch (ls) {
>  				case -2:
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH] tools lib traceevents: Fix output of %llu for 64 bit values  read on 32 bit machines Steven Rostedt <rostedt@goodmis.org> - 2015-11-16 21:40 +0100
  [PATCH v2] tools lib traceevents: Fix output of %llu for 64 bit  values read on 32 bit machines Steven Rostedt <rostedt@goodmis.org> - 2015-11-16 23:30 +0100
    Re: [PATCH v2] tools lib traceevents: Fix output of %llu for 64 bit  values read on 32 bit machines Namhyung Kim <namhyung@kernel.org> - 2015-11-17 01:30 +0100
      Re: [PATCH v2] tools lib traceevents: Fix output of %llu for 64 bit  values read on 32 bit machines Steven Rostedt <rostedt@goodmis.org> - 2015-11-17 03:50 +0100
    Re: [PATCH v2] tools lib traceevents: Fix output of %llu for 64 bit  values read on 32 bit machines Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-23 23:20 +0100
    [tip:perf/core] tools lib traceevent:   Fix output of %llu for 64 bit values read on 32 bit machines tip-bot for Steven Rostedt <tipbot@zytor.com> - 2015-11-26 09:30 +0100
  Re: [PATCH] tools lib traceevents: Fix output of %llu for 64 bit  values read on 32 bit machines Steven Rostedt <rostedt@goodmis.org> - 2015-11-16 23:30 +0100

csiph-web