perf kmem: Resolve symbols

E.g.:

  [root@doppio linux-2.6-tip]# perf kmem record sleep 3s
  [ perf record: Woken up 2 times to write data ]
  [ perf record: Captured and wrote 0.804 MB perf.data (~35105 samples) ]

  [root@doppio linux-2.6-tip]# perf kmem --stat caller | head -10
  ------------------------------------------------------------------------------
  Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
  ------------------------------------------------------------------------------
  getname/40                  | 1519616/4096   | 1519616/4096  |   371|   0.000%
  seq_read/a2                 |  987136/4096   |  987136/4096  |   241|   0.000%
  __netdev_alloc_skb/43       |  260368/1049   |  259968/1048  |   248|   0.154%
  __alloc_skb/5a              |   77312/256    |   77312/256   |   302|   0.000%
  proc_alloc_inode/33         |   76480/632    |   76472/632   |   121|   0.010%
  get_empty_filp/8d           |   70272/192    |   70272/192   |   366|   0.000%
  split_vma/8e                |   42064/176    |   42064/176   |   239|   0.000%
  [root@doppio linux-2.6-tip]#

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1259005869-13487-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 5d8aeae5000452c0e45da8a92f09b1b788b6b89d..256d18fa0471235533021595df0330ca9df29234 100644 (file)
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -307,25 +307,34 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 {
        struct rb_node *next;
 
-       printf("\n ------------------------------------------------------------------------------\n");
-       if (is_caller)
-               printf(" Callsite          |");
-       else
-               printf(" Alloc Ptr         |");
-       printf(" Total_alloc/Per |  Total_req/Per  |  Hit   | Fragmentation\n");
-       printf(" ------------------------------------------------------------------------------\n");
+       printf("%.78s\n", graph_dotted_line);
+       printf("%-28s|",  is_caller ? "Callsite": "Alloc Ptr");
+       printf("Total_alloc/Per | Total_req/Per | Hit  | Frag\n");
+       printf("%.78s\n", graph_dotted_line);
 
        next = rb_first(root);
 
        while (next && n_lines--) {
-               struct alloc_stat *data;
-
-               data = rb_entry(next, struct alloc_stat, node);
+               struct alloc_stat *data = rb_entry(next, struct alloc_stat,
+                                                  node);
+               struct symbol *sym = NULL;
+               char bf[BUFSIZ];
+               u64 addr;
+
+               if (is_caller) {
+                       addr = data->call_site;
+                       sym = kernel_maps__find_symbol(addr, NULL, NULL);
+               } else
+                       addr = data->ptr;
+
+               if (sym != NULL)
+                       snprintf(bf, sizeof(bf), "%s/%Lx", sym->name,
+                                addr - sym->start);
+               else
+                       snprintf(bf, sizeof(bf), "%#Lx", addr);
 
-               printf(" %-16p  | %8llu/%-6lu | %8llu/%-6lu | %6lu | %8.3f%%\n",
-                      is_caller ? (void *)(unsigned long)data->call_site :
-                                  (void *)(unsigned long)data->ptr,
-                      (unsigned long long)data->bytes_alloc,
+               printf("%-28s|%8llu/%-6lu |%8llu/%-6lu|%6lu|%8.3f%%\n",
+                      bf, (unsigned long long)data->bytes_alloc,
                       (unsigned long)data->bytes_alloc / data->hit,
                       (unsigned long long)data->bytes_req,
                       (unsigned long)data->bytes_req / data->hit,