perf top: Reuse the 'report' hist_entry/hists classes

This actually fixes several problems we had in the old 'perf top':

1. Unresolved symbols not show, limitation that came from the old
   "KernelTop" codebase, to solve it we would need to do changes
   that would make sym_entry have most of the hist_entry fields.
2. It was using the number of samples, not the sum of sample->period.

And brings the --sort code that allows us to have all the views in
'perf report', for instance:

[root@emilia ~]# perf top --sort dso
PerfTop: 5903 irqs/sec kernel:77.5% exact: 0.0% [1000Hz cycles], (all, 8 CPUs)
------------------------------------------------------------------------------

    31.59%  libcrypto.so.1.0.0
    21.55%  [kernel]
    18.57%  libpython2.6.so.1.0
     7.04%  libc-2.12.so
     6.99%  _backend_agg.so
     4.72%  sshd
     1.48%  multiarray.so
     1.39%  libfreetype.so.6.3.22
     1.37%  perf
     0.71%  libgobject-2.0.so.0.2200.5
     0.53%  [tg3]
     0.48%  libglib-2.0.so.0.2200.5
     0.44%  libstdc++.so.6.0.13
     0.40%  libcairo.so.2.10800.8
     0.38%  libm-2.12.so
     0.34%  umath.so
     0.30%  libgdk-x11-2.0.so.0.1800.9
     0.22%  libpthread-2.12.so
     0.20%  libgtk-x11-2.0.so.0.1800.9
     0.20%  librt-2.12.so
     0.15%  _path.so
     0.13%  libpango-1.0.so.0.2800.1
     0.11%  libatlas.so.3.0
     0.09%  ft2font.so
     0.09%  libpangoft2-1.0.so.0.2800.1
     0.08%  libX11.so.6.3.0
     0.07%  [vdso]
     0.06%  cyclictest
^C

All the filter lists can be used as well: --dsos, --comms, --symbols,
etc.

The 'perf report' TUI is also reused, being possible to apply all the
zoom operations, do annotation, etc.

This change will allow multiple simplifications in the symbol system as
well, that will be detailed in upcoming changesets.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-xzaaldxq7zhqrrxdxjifk1mh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 34 deletions

diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index b07b0410463c..01d1057f3074 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -4,64 +4,32 @@
 #include "types.h"
 #include "../perf.h"
 #include <stddef.h>
-#include <pthread.h>
-#include <linux/list.h>
-#include <linux/rbtree.h>
 
 struct perf_evlist;
 struct perf_evsel;
 struct perf_session;
 
-struct sym_entry {
-	struct rb_node		rb_node;
-	struct list_head	node;
-	unsigned long		snap_count;
-	double			weight;
-	struct map		*map;
-	unsigned long		count[0];
-};
-
-static inline struct symbol *sym_entry__symbol(struct sym_entry *self)
-{
-       return ((void *)self) + symbol_conf.priv_size;
-}
-
 struct perf_top {
 	struct perf_evlist *evlist;
 	/*
 	 * Symbols will be added here in perf_event__process_sample and will
 	 * get out after decayed.
 	 */
-	struct list_head   active_symbols;
-	pthread_mutex_t	   active_symbols_lock;
-	pthread_cond_t	   active_symbols_cond;
 	u64		   samples;
 	u64		   kernel_samples, us_samples;
 	u64		   exact_samples;
 	u64		   guest_us_samples, guest_kernel_samples;
 	u64		   total_lost_warned;
 	int		   print_entries, count_filter, delay_secs;
-	int		   display_weighted, freq, rb_entries;
+	int		   freq;
 	pid_t		   target_pid, target_tid;
 	bool		   hide_kernel_symbols, hide_user_symbols, zero;
 	const char	   *cpu_list;
-	struct sym_entry   *sym_filter_entry;
+	struct hist_entry  *sym_filter_entry;
 	struct perf_evsel  *sym_evsel;
 	struct perf_session *session;
 };
 
 size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size);
 void perf_top__reset_sample_counters(struct perf_top *top);
-float perf_top__decay_samples(struct perf_top *top, struct rb_root *root);
-void perf_top__find_widths(struct perf_top *top, struct rb_root *root,
-			   int *dso_width, int *dso_short_width, int *sym_width);
-
-#ifdef NO_NEWT_SUPPORT
-static inline int perf_top__tui_browser(struct perf_top *top __used)
-{
-	return 0;
-}
-#else
-int perf_top__tui_browser(struct perf_top *top);
-#endif
 #endif /* __PERF_TOP_H */