From: Namhyung Kim <namhyung....@lge.com>

The hpp helpers do same job for each field so it was implemented as
macro in order to access those fields easily.  But it gets cumbersome to
maintain a large function in a macro as the function grows. Factor it
out to a function with a little helper macro to access field.

Signed-off-by: Namhyung Kim <namhy...@kernel.org>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Pekka Enberg <penb...@kernel.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Stephane Eranian <eran...@google.com>
Link: 
http://lkml.kernel.org/r/1358845787-1350-9-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/ui/gtk/hists.c | 68 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 47 insertions(+), 21 deletions(-)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index c03da79..38be79d 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -8,32 +8,58 @@
 
 #define MAX_COLUMNS                    32
 
-#define HPP__COLOR_FN(_name, _field)                                           
\
-static int perf_gtk__hpp_color_ ## _name(struct perf_hpp *hpp,                 
\
-                                        struct hist_entry *he)                 
\
+static int perf_gtk__percent_color_snprintf(char *buf, size_t size,
+                                           double percent)
+{
+       int ret = 0;
+       const char *markup;
+
+       markup = perf_gtk__get_percent_color(percent);
+       if (markup)
+               ret += scnprintf(buf, size, markup);
+
+       ret += scnprintf(buf + ret, size - ret, "%6.2f%%", percent);
+
+       if (markup)
+               ret += scnprintf(buf + ret, size - ret, "</span>");
+
+       return ret;
+}
+
+
+static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he,
+                           u64 (*get_field)(struct hist_entry *))
+{
+       int ret;
+       double percent = 0.0;
+       struct hists *hists = he->hists;
+
+       if (hists->stats.total_period)
+               percent = 100.0 * get_field(he) / hists->stats.total_period;
+
+       ret = perf_gtk__percent_color_snprintf(hpp->buf, hpp->size, percent);
+       return ret;
+}
+
+#define __HPP_COLOR_PERCENT_FN(_type, _field)                                  
\
+static u64 he_get_##_field(struct hist_entry *he)                              
\
 {                                                                              
\
-       struct hists *hists = he->hists;                                        
\
-       double percent = 100.0 * he->stat._field / hists->stats.total_period;   
\
-       const char *markup;                                                     
\
-       int ret = 0;                                                            
\
-                                                                               
\
-       markup = perf_gtk__get_percent_color(percent);                          
\
-       if (markup)                                                             
\
-               ret += scnprintf(hpp->buf, hpp->size, "%s", markup);            
\
-       ret += scnprintf(hpp->buf + ret, hpp->size - ret, "%6.2f%%", percent);  
\
-       if (markup)                                                             
\
-               ret += scnprintf(hpp->buf + ret, hpp->size - ret, "</span>");   
\
+       return he->stat._field;                                                 
\
+}                                                                              
\
                                                                                
\
-       return ret;                                                             
\
+static int perf_gtk__hpp_color_##_type(struct perf_hpp *hpp,                   
\
+                                      struct hist_entry *he)                   
\
+{                                                                              
\
+       return __hpp__color_fmt(hpp, he, he_get_##_field);                      
\
 }
 
-HPP__COLOR_FN(overhead, period)
-HPP__COLOR_FN(overhead_sys, period_sys)
-HPP__COLOR_FN(overhead_us, period_us)
-HPP__COLOR_FN(overhead_guest_sys, period_guest_sys)
-HPP__COLOR_FN(overhead_guest_us, period_guest_us)
+__HPP_COLOR_PERCENT_FN(overhead, period)
+__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
+__HPP_COLOR_PERCENT_FN(overhead_us, period_us)
+__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
+__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
 
-#undef HPP__COLOR_FN
+#undef __HPP_COLOR_PERCENT_FN
 
 
 void perf_gtk__init_hpp(void)
-- 
1.8.1.1.361.gec3ae6e

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