perf report: Honor column width setting

Set column width and do not change it if user gives -w/--column-widths
option.  It'll truncate longer symbols than the width if exists.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1406785662-5534-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index c1d8d39..e07d4e8 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -678,12 +678,12 @@
 }									\
 									\
 static int								\
-hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
+hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt,		\
 				struct perf_hpp *hpp,			\
 				struct hist_entry *he)			\
 {									\
-	return __hpp__fmt(hpp, he, __hpp_get_##_field, " %*.2f%%", 6,	\
-			  __hpp__slsmg_color_printf, true);		\
+	return hpp__fmt(fmt, hpp, he, __hpp_get_##_field, " %*.2f%%",	\
+			__hpp__slsmg_color_printf, true);		\
 }
 
 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)			\
@@ -693,19 +693,20 @@
 }									\
 									\
 static int								\
-hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
+hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt,		\
 				struct perf_hpp *hpp,			\
 				struct hist_entry *he)			\
 {									\
 	if (!symbol_conf.cumulate_callchain) {				\
+		int len = fmt->user_len ?: fmt->len;			\
 		int ret = scnprintf(hpp->buf, hpp->size,		\
-				    "%*s", 8, "N/A");			\
+				    "%*s", len, "N/A");			\
 		slsmg_printf("%s", hpp->buf);				\
 									\
 		return ret;						\
 	}								\
-	return __hpp__fmt(hpp, he, __hpp_get_acc_##_field, " %*.2f%%",	\
-			  6, __hpp__slsmg_color_printf, true);	\
+	return hpp__fmt(fmt, hpp, he, __hpp_get_acc_##_field,		\
+			" %*.2f%%", __hpp__slsmg_color_printf, true);	\
 }
 
 __HPP_COLOR_PERCENT_FN(overhead, period)
@@ -1549,6 +1550,9 @@
 
 	memset(options, 0, sizeof(options));
 
+	if (symbol_conf.col_width_list_str)
+		perf_hpp__set_user_width(symbol_conf.col_width_list_str);
+
 	while (1) {
 		const struct thread *thread = NULL;
 		const struct dso *dso = NULL;