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perf tools: Add machine__module_dso function

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Separate the dso object addition and update when adding new kernel
module.

Currently we update dso's symtab_type any time we find it in the list,
because we can't distinguish between new and found dso from
__dsos__findnew function.

Adding machine__module_dso that separates finding and adding new dso
objects, so there's no superfluous update of dso.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-uvqgs5tyq4wssnq6fm43hgvk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-02-12 22:10:52 +01:00 committed by Arnaldo Carvalho de Melo
parent 701d8d7f86
commit da17ea33e5
1 changed files with 25 additions and 11 deletions
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36
tools/perf/util/machine.c
View File

@ -460,12 +460,35 @@ int machine__process_lost_event(struct machine *machine __maybe_unused,
return 0;
}
static struct dso *machine__module_dso(struct machine *machine, const char *filename)
{
struct dso *dso;
bool compressed;
dso = dsos__find(&machine->kernel_dsos, filename, false);
if (!dso) {
dso = dsos__addnew(&machine->kernel_dsos, filename);
if (dso == NULL)
return NULL;
if (machine__is_host(machine))
dso->symtab_type = DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE;
else
dso->symtab_type = DSO_BINARY_TYPE__GUEST_KMODULE;
/* _KMODULE_COMP should be next to _KMODULE */
if (is_kernel_module(filename, &compressed) && compressed)
dso->symtab_type++;
}
return dso;
}
struct map *machine__new_module(struct machine *machine, u64 start,
const char *filename)
{
struct map *map;
struct dso *dso = __dsos__findnew(&machine->kernel_dsos, filename);
bool compressed;
struct dso *dso = machine__module_dso(machine, filename);
if (dso == NULL)
return NULL;
@ -474,15 +497,6 @@ struct map *machine__new_module(struct machine *machine, u64 start,
if (map == NULL)
return NULL;
if (machine__is_host(machine))
dso->symtab_type = DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE;
else
dso->symtab_type = DSO_BINARY_TYPE__GUEST_KMODULE;
/* _KMODULE_COMP should be next to _KMODULE */
if (is_kernel_module(filename, &compressed) && compressed)
dso->symtab_type++;
map_groups__insert(&machine->kmaps, map);
return map;
}