Re: [PATCH] perftools: Fix build error

From: Ingo Molnar
Date: Thu Jan 20 2011 - 06:47:38 EST



* Denis Kirjanov <dkirjanov@xxxxxxxxxx> wrote:

> Fix perftools build error (ppc64 box) with PERF_VERSION = 2.6.38.rc1.47.g12fcdb
> CC builtin-top.o
> cc1: warnings being treated as errors
> builtin-top.c: In function 'print_sym_table':
> builtin-top.c:540: error: format '%Ld' expects type 'long long int', but argument 2 has type '__u64'
>
> Signed-off-by: Denis Kirjanov <dkirjanov@xxxxxxxxxx>
> ---
> tools/perf/builtin-top.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 05344c6..8202a2e 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -537,7 +537,7 @@ static void print_sym_table(void)
> if (nr_counters == 1 || !display_weighted) {
> struct perf_evsel *first;
> first = list_entry(evsel_list.next, struct perf_evsel, node);
> - printf("%Ld", first->attr.sample_period);
> + printf("%Ld", (unsigned long long)first->attr.sample_period);

Wouldnt %Lu solve this in a cleaner way?

Thanks,

Ingo
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