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perf kmem: Resolve kernel symbols again

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Due to the assumption in perf_session__new that the kernel maps would be
created using the fake PERF_RECORD_MMAP event in a perf.data file 'perf
kmem --stat caller', that doesn't have such event, ends up not being
able to resolve the kernel addresses.

Fix it by calling perf_session__create_kernel_maps() in __cmd_kmem().

LKML-Reference: <new-submission>
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>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2010-04-01 19:12:13 -03:00
parent a4e3b956a8
commit e727ca73f8
3 changed files with 8 additions and 5 deletions
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3
tools/perf/builtin-kmem.c
View file

@ -489,6 +489,9 @@ static int __cmd_kmem(void)
if (session == NULL) if (session == NULL)
return -ENOMEM; return -ENOMEM;
if (perf_session__create_kernel_maps(session) < 0)
goto out_delete;
if (!perf_session__has_traces(session, "kmem record")) if (!perf_session__has_traces(session, "kmem record"))
goto out_delete; goto out_delete;

5
tools/perf/util/session.c
View file

@ -52,11 +52,6 @@ out_close:
return -1; return -1;
} }
static inline int perf_session__create_kernel_maps(struct perf_session *self)
{
return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
}
struct perf_session *perf_session__new(const char *filename, int mode, bool force) struct perf_session *perf_session__new(const char *filename, int mode, bool force)
{ {
size_t len = filename ? strlen(filename) + 1 : 0; size_t len = filename ? strlen(filename) + 1 : 0;

5
tools/perf/util/session.h
View file

@ -80,6 +80,11 @@ static inline int __perf_session__create_kernel_maps(struct perf_session *self,
self->vmlinux_maps, kernel); self->vmlinux_maps, kernel);
} }
static inline int perf_session__create_kernel_maps(struct perf_session *self)
{
return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
}
static inline struct map * static inline struct map *
perf_session__new_module_map(struct perf_session *self, perf_session__new_module_map(struct perf_session *self,
u64 start, const char *filename) u64 start, const char *filename)