linux-kernel - [PATCH v6 06/11 1 update 2/2] perf tools: Extract common API out of unwind-libunwind-local.c

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Date:	Mon, 30 May 2016 03:22:36 +0000
From:	He Kuang <hekuang@...wei.com>
To:	<peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
	<alexander.shishkin@...ux.intel.com>, <jolsa@...hat.com>,
	<wangnan0@...wei.com>, <hekuang@...wei.com>, <jpoimboe@...hat.com>,
	<ak@...ux.intel.com>, <eranian@...gle.com>, <namhyung@...nel.org>,
	<adrian.hunter@...el.com>, <sukadev@...ux.vnet.ibm.com>,
	<masami.hiramatsu.pt@...achi.com>, <tumanova@...ux.vnet.ibm.com>,
	<kan.liang@...el.com>, <penberg@...nel.org>, <dsahern@...il.com>
CC:	<linux-kernel@...r.kernel.org>
Subject: [PATCH v6 06/11 1 update 2/2] 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@...wei.com>
---
 tools/perf/util/Build                    |  1 +
 tools/perf/util/unwind-libunwind-local.c | 32 ------------------------------
 tools/perf/util/unwind-libunwind.c       | 34 ++++++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+), 32 deletions(-)
 create mode 100644 tools/perf/util/unwind-libunwind.c

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 5e23d85..004fb1d 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 93d2d8e..37e53f8 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -692,35 +692,3 @@ void register_local_unwind_libunwind_ops(struct thread *thread)
 {
 	thread->unwind_libunwind_ops = &_unwind_libunwind_ops;
 }
-
-int unwind__prepare_access(struct thread *thread)
-{
-	register_local_unwind_libunwind_ops(thread);
-
-	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);
-	else
-		return 0;
-}
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
new file mode 100644
index 0000000..40d0453
--- /dev/null
+++ b/tools/perf/util/unwind-libunwind.c
@@ -0,0 +1,34 @@
+#include "unwind.h"
+#include "thread.h"
+
+int unwind__prepare_access(struct thread *thread)
+{
+	register_local_unwind_libunwind_ops(thread);
+
+	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);
+	else
+		return 0;
+}
-- 
1.8.5.2