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perf tools: Remove cast of non-variadic function to variadic

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commit 53805eca3d89b095062c11a6798689bb0af09216 upstream.

The 4fb71074a5 (perf ui/hist: Consolidate hpp helpers) cset introduced
a cast of percent_color_snprintf to a function pointer type with
varargs.  Change percent_color_snprintf to be variadic and remove the
cast.

The symptom of this was all percentages being reported as 0.00% in perf
report --stdio output on the armhf arch.

Signed-off-by: Michael Hudson-Doyle <michael.hudson@linaro.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Link: http://lkml.kernel.org/r/87zjppvw7y.fsf@canonical.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Hudson-Doyle 2013-10-31 16:47:45 -07:00 committed by Greg Kroah-Hartman
parent f9bdb31ae2
commit 9dfd005a3f
3 changed files with 11 additions and 4 deletions
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2
tools/perf/ui/hist.c
View File

@ -113,7 +113,7 @@ static u64 he_get_##_field(struct hist_entry *he) \
static int hpp__color_##_type(struct perf_hpp *hpp, struct hist_entry *he) \
{ \
return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \
(hpp_snprint_fn)percent_color_snprintf, true); \
percent_color_snprintf, true); \
}
#define __HPP_ENTRY_PERCENT_FN(_type, _field) \

11
tools/perf/util/color.c
View File

@ -318,8 +318,15 @@ int percent_color_fprintf(FILE *fp, const char *fmt, double percent)
return r;
}
int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent)
int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
{
const char *color = get_percent_color(percent);
va_list args;
double percent;
const char *color;
va_start(args, fmt);
percent = va_arg(args, double);
va_end(args);
color = get_percent_color(percent);
return color_snprintf(bf, size, color, fmt, percent);
}

2
tools/perf/util/color.h
View File

@ -39,7 +39,7 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);
int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent);
int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
int percent_color_fprintf(FILE *fp, const char *fmt, double percent);
const char *get_percent_color(double percent);