perf tools: Delay loading symtabs till we hit a map with it
So that we can have a quicker start on perf top and even speedups in the other tools, as we can have maps with no hits, so no need to load its symtabs. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1256773881-4191-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar

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@@ -455,7 +455,7 @@ got_map:
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dump_printf(" ...... map: %Lx -> %Lx\n", *ipp, ip);
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*ipp = ip;
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return map ? map->dso->find_symbol(map->dso, ip) : NULL;
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return map ? map__find_symbol(map, ip, NULL) : NULL;
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}
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static int call__match(struct symbol *sym)
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@@ -751,7 +751,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
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static int
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process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
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{
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struct map *map = map__new(&event->mmap, cwd, cwdlen, 0, NULL);
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struct map *map = map__new(&event->mmap, cwd, cwdlen, 0);
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struct thread *thread = threads__findnew(event->mmap.pid);
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dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
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