perf tools: Convert to NEWT_SUPPORT

For building perf without libnewt, we can set NO_NEWT=1 as a argument of
make.  It then defines NO_NEWT_SUPPORT macro for C code to do the proper
handling.  However it usually used in a negative semantics - e.g.  #ifndef -
so we saw double negations which can be misleading.  Convert it to a
positive form to make it more readable.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1348824728-14025-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

8 files changed, 32 insertions, 34 deletions

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 99b2bb371bcd..3d2181c57507 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -554,16 +554,14 @@ ifndef NO_LIBAUDIT
         endif
 endif
 
-ifdef NO_NEWT
-        BASIC_CFLAGS += -DNO_NEWT_SUPPORT
-else
+ifndef NO_NEWT
         FLAGS_NEWT=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -lnewt
         ifneq ($(call try-cc,$(SOURCE_NEWT),$(FLAGS_NEWT)),y)
                 msg := $(warning newt not found, disables TUI support. Please install newt-devel or libnewt-dev);
-                BASIC_CFLAGS += -DNO_NEWT_SUPPORT
         else
                 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
                 BASIC_CFLAGS += -I/usr/include/slang
+                BASIC_CFLAGS += -DNEWT_SUPPORT
                 EXTLIBS += -lnewt -lslang
                 LIB_OBJS += $(OUTPUT)ui/setup.o
                 LIB_OBJS += $(OUTPUT)ui/browser.o
@@ -603,7 +601,7 @@ else
                 LIB_OBJS += $(OUTPUT)ui/gtk/util.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
                 # Make sure that it'd be included only once.
-                ifneq ($(findstring -DNO_NEWT_SUPPORT,$(BASIC_CFLAGS)),)
+                ifeq ($(findstring -DNEWT_SUPPORT,$(BASIC_CFLAGS)),)
                         LIB_OBJS += $(OUTPUT)ui/setup.o
                         LIB_OBJS += $(OUTPUT)ui/util.o
                 endif
diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c
index 8aada5b3c04c..ccb046aac98b 100644
--- a/tools/perf/ui/gtk/util.c
+++ b/tools/perf/ui/gtk/util.c
@@ -116,7 +116,7 @@ struct perf_error_ops perf_gtk_eops = {
  * FIXME: Functions below should be implemented properly.
  *        For now, just add stubs for NO_NEWT=1 build.
  */
-#ifdef NO_NEWT_SUPPORT
+#ifndef NEWT_SUPPORT
 void ui_progress__update(u64 curr __maybe_unused, u64 total __maybe_unused,
                          const char *title __maybe_unused)
 {
diff --git a/tools/perf/ui/helpline.h b/tools/perf/ui/helpline.h
index 2b667ee454c3..e1f126ba0690 100644
--- a/tools/perf/ui/helpline.h
+++ b/tools/perf/ui/helpline.h
@@ -23,16 +23,16 @@ void ui_helpline__puts(const char *msg);
 
 extern char ui_helpline__current[512];
 
-#ifdef NO_NEWT_SUPPORT
+#ifdef NEWT_SUPPORT
+extern char ui_helpline__last_msg[];
+int ui_helpline__show_help(const char *format, va_list ap);
+#else
 static inline int ui_helpline__show_help(const char *format __maybe_unused,
                                          va_list ap __maybe_unused)
 {
         return 0;
 }
-#else
-extern char ui_helpline__last_msg[];
-int ui_helpline__show_help(const char *format, va_list ap);
-#endif /* NO_NEWT_SUPPORT */
+#endif /* NEWT_SUPPORT */
 
 #ifdef NO_GTK2_SUPPORT
 static inline int perf_gtk__show_helpline(const char *format __maybe_unused,
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 9b5b21e7b032..39242dcee8f2 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -138,7 +138,10 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,
                          bool print_lines, bool full_paths, int min_pcnt,
                          int max_lines);
 
-#ifdef NO_NEWT_SUPPORT
+#ifdef NEWT_SUPPORT
+int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
+                         void(*timer)(void *arg), void *arg, int delay_secs);
+#else
 static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
                                        struct map *map __maybe_unused,
                                        int evidx __maybe_unused,
@@ -148,9 +151,6 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 {
         return 0;
 }
-#else
-int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
-                         void(*timer)(void *arg), void *arg, int delay_secs);
 #endif
 
 extern const char       *disassembler_style;
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index ab1769426541..70f318dc1d9a 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -33,7 +33,7 @@ extern int pager_use_color;
 
 extern int use_browser;
 
-#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
+#if !defined(NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
 static inline void setup_browser(bool fallback_to_pager)
 {
         if (fallback_to_pager)
@@ -44,15 +44,15 @@ static inline void exit_browser(bool wait_for_ok __maybe_unused) {}
 void setup_browser(bool fallback_to_pager);
 void exit_browser(bool wait_for_ok);
 
-#ifdef NO_NEWT_SUPPORT
+#ifdef NEWT_SUPPORT
+int ui__init(void);
+void ui__exit(bool wait_for_ok);
+#else
 static inline int ui__init(void)
 {
         return -1;
 }
 static inline void ui__exit(bool wait_for_ok __maybe_unused) {}
-#else
-int ui__init(void);
-void ui__exit(bool wait_for_ok);
 #endif
 
 #ifdef NO_GTK2_SUPPORT
@@ -65,7 +65,7 @@ static inline void perf_gtk__exit(bool wait_for_ok __maybe_unused) {}
 int perf_gtk__init(void);
 void perf_gtk__exit(bool wait_for_ok);
 #endif
-#endif /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
+#endif /* !NEWT_SUPPORT && NO_GTK2_SUPPORT */
 
 char *alias_lookup(const char *alias);
 int split_cmdline(char *cmdline, const char ***argv);
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 66eb3828ceb5..0f6ad7037d9c 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -49,7 +49,7 @@ int dump_printf(const char *fmt, ...)
         return ret;
 }
 
-#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
+#if !defined(NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
 int ui__warning(const char *format, ...)
 {
         va_list args;
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index bb2e7d1007ab..3fe9ade7a2c2 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -15,7 +15,7 @@ void trace_event(union perf_event *event);
 struct ui_progress;
 struct perf_error_ops;
 
-#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
+#if !defined(NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
 static inline void ui_progress__update(u64 curr __maybe_unused,
                                        u64 total __maybe_unused,
                                        const char *title __maybe_unused) {}
@@ -34,13 +34,13 @@ perf_error__unregister(struct perf_error_ops *eops __maybe_unused)
         return 0;
 }
 
-#else /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
+#else /* !NEWT_SUPPORT && NO_GTK2_SUPPORT */
 
 #include "../ui/progress.h"
 int ui__error(const char *format, ...) __attribute__((format(printf, 1, 2)));
 #include "../ui/util.h"
 
-#endif /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
+#endif /* !NEWT_SUPPORT && NO_GTK2_SUPPORT */
 
 int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
 int ui__error_paranoid(void);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index f011ad4756e8..843638d0287f 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -154,7 +154,15 @@ int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
 
 struct perf_evlist;
 
-#ifdef NO_NEWT_SUPPORT
+#ifdef NEWT_SUPPORT
+#include "../ui/keysyms.h"
+int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
+                             void(*timer)(void *arg), void *arg, int delay_secs);
+
+int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
+                                  void(*timer)(void *arg), void *arg,
+                                  int refresh);
+#else
 static inline
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
                                   const char *help __maybe_unused,
@@ -177,14 +185,6 @@ static inline int hist_entry__tui_annotate(struct hist_entry *self
 }
 #define K_LEFT -1
 #define K_RIGHT -2
-#else
-#include "../ui/keysyms.h"
-int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
-                             void(*timer)(void *arg), void *arg, int delay_secs);
-
-int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
-                                  void(*timer)(void *arg), void *arg,
-                                  int refresh);
 #endif
 
 #ifdef NO_GTK2_SUPPORT