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Subject[PATCH 18/24] perf tools: Extract common API out of unwind-libunwind-local.c
Date
From: He Kuang <hekuang@huawei.com>

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>
---
tools/perf/util/Build | 1 +
tools/perf/util/unwind-libunwind-local.c | 34 ----------------------------
tools/perf/util/unwind-libunwind.c | 38 ++++++++++++++++++++++++++++++++
3 files changed, 39 insertions(+), 34 deletions(-)
create mode 100644 tools/perf/util/unwind-libunwind.c

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 5e23d85d2d69..004fb1d1d0ad 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -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

diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index b0c5db1333f9..9c70486c5c6a 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -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;
-}
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
new file mode 100644
index 000000000000..f86f903ae8a8
--- /dev/null
+++ b/tools/perf/util/unwind-libunwind.c
@@ -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;
+}
--
2.5.5
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