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perf tools: Extract common API out of unwind-libunwind-local.c 

This patch extracts common unwind-libunwind APIs out of
unwind-libunwind-local.c, this part will be used by both local and
remote libunwind.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1464924803-22214-9-git-send-email-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
He Kuang 2016-06-03 03:33:17 +00:00 committed by Arnaldo Carvalho de Melo
parent a597b547d6
commit f6d725324a
3 changed files with 39 additions and 34 deletions
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1
tools/perf/util/Build
View File

@ -100,6 +100,7 @@ libperf-$(CONFIG_DWARF) += dwarf-aux.o
libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind-local.o
libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
libperf-$(CONFIG_LIBBABELTRACE) += data-convert-bt.o

34
tools/perf/util/unwind-libunwind-local.c
View File

@ -691,37 +691,3 @@ _unwind_libunwind_ops = {
struct unwind_libunwind_ops *
local_unwind_libunwind_ops = &_unwind_libunwind_ops;
static void unwind__register_ops(struct thread *thread,
struct unwind_libunwind_ops *ops)
{
thread->unwind_libunwind_ops = ops;
}
int unwind__prepare_access(struct thread *thread)
{
unwind__register_ops(thread, local_unwind_libunwind_ops);
return thread->unwind_libunwind_ops->prepare_access(thread);
}
void unwind__flush_access(struct thread *thread)
{
if (thread->unwind_libunwind_ops)
thread->unwind_libunwind_ops->flush_access(thread);
}
void unwind__finish_access(struct thread *thread)
{
if (thread->unwind_libunwind_ops)
thread->unwind_libunwind_ops->finish_access(thread);
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
struct thread *thread,
struct perf_sample *data, int max_stack)
{
if (thread->unwind_libunwind_ops)
return thread->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack);
return 0;
}

38
tools/perf/util/unwind-libunwind.c 100644
View File

@ -0,0 +1,38 @@
#include "unwind.h"
#include "thread.h"
struct unwind_libunwind_ops __weak *local_unwind_libunwind_ops;
static void unwind__register_ops(struct thread *thread,
struct unwind_libunwind_ops *ops)
{
thread->unwind_libunwind_ops = ops;
}
int unwind__prepare_access(struct thread *thread)
{
unwind__register_ops(thread, local_unwind_libunwind_ops);
return thread->unwind_libunwind_ops->prepare_access(thread);
}
void unwind__flush_access(struct thread *thread)
{
if (thread->unwind_libunwind_ops)
thread->unwind_libunwind_ops->flush_access(thread);
}
void unwind__finish_access(struct thread *thread)
{
if (thread->unwind_libunwind_ops)
thread->unwind_libunwind_ops->finish_access(thread);
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
struct thread *thread,
struct perf_sample *data, int max_stack)
{
if (thread->unwind_libunwind_ops)
return thread->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack);
return 0;
}