perf symbols: Look for vmlinux in more places

Now that we can check the buildid to see if it really matches,
this can be done safely:

  vmlinux
  /boot/vmlinux
  /boot/vmlinux-<uts.release>
  /lib/modules/<uts.release>/build/vmlinux
  /usr/lib/debug/lib/modules/%s/vmlinux

More can be added - if you know about distros that put the
vmlinux somewhere else please let us know.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1259001550-8194-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index ea49c2e9dda3..eef9caab6eee 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -79,6 +79,7 @@ static int			dump_symtab                     =      0;
 static bool                     hide_kernel_symbols             =  false;
 static bool                     hide_user_symbols               =  false;
 static struct winsize           winsize;
+const char                      *vmlinux_name;
 static const char               *graph_line                     =
         "_____________________________________________________________________"
         "_____________________________________________________________________";
@@ -1341,7 +1342,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
         if (delay_secs < 1)
                 delay_secs = 1;
 
-        err = kernel_maps__init(true);
+        err = kernel_maps__init(vmlinux_name, !vmlinux_name, true);
         if (err < 0)
                 return err;
         parse_source(sym_filter_entry);