ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/tools/perf/util/unwind.h b/marvell/linux/tools/perf/util/unwind.h
new file mode 100644
index 0000000..3a7d00c
--- /dev/null
+++ b/marvell/linux/tools/perf/util/unwind.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __UNWIND_H
+#define __UNWIND_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+struct map;
+struct map_groups;
+struct perf_sample;
+struct symbol;
+struct thread;
+
+struct unwind_entry {
+ struct map *map;
+ struct symbol *sym;
+ u64 ip;
+};
+
+typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
+
+struct unwind_libunwind_ops {
+ int (*prepare_access)(struct map_groups *mg);
+ void (*flush_access)(struct map_groups *mg);
+ void (*finish_access)(struct map_groups *mg);
+ int (*get_entries)(unwind_entry_cb_t cb, void *arg,
+ struct thread *thread,
+ struct perf_sample *data, int max_stack);
+};
+
+#ifdef HAVE_DWARF_UNWIND_SUPPORT
+int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
+ struct thread *thread,
+ struct perf_sample *data, int max_stack);
+/* libunwind specific */
+#ifdef HAVE_LIBUNWIND_SUPPORT
+#ifndef LIBUNWIND__ARCH_REG_ID
+#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
+#endif
+
+#ifndef LIBUNWIND__ARCH_REG_SP
+#define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
+#endif
+
+#ifndef LIBUNWIND__ARCH_REG_IP
+#define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
+#endif
+
+int LIBUNWIND__ARCH_REG_ID(int regnum);
+int unwind__prepare_access(struct map_groups *mg, struct map *map,
+ bool *initialized);
+void unwind__flush_access(struct map_groups *mg);
+void unwind__finish_access(struct map_groups *mg);
+#else
+static inline int unwind__prepare_access(struct map_groups *mg __maybe_unused,
+ struct map *map __maybe_unused,
+ bool *initialized __maybe_unused)
+{
+ return 0;
+}
+
+static inline void unwind__flush_access(struct map_groups *mg __maybe_unused) {}
+static inline void unwind__finish_access(struct map_groups *mg __maybe_unused) {}
+#endif
+#else
+static inline int
+unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
+ void *arg __maybe_unused,
+ struct thread *thread __maybe_unused,
+ struct perf_sample *data __maybe_unused,
+ int max_stack __maybe_unused)
+{
+ return 0;
+}
+
+static inline int unwind__prepare_access(struct map_groups *mg __maybe_unused,
+ struct map *map __maybe_unused,
+ bool *initialized __maybe_unused)
+{
+ return 0;
+}
+
+static inline void unwind__flush_access(struct map_groups *mg __maybe_unused) {}
+static inline void unwind__finish_access(struct map_groups *mg __maybe_unused) {}
+#endif /* HAVE_DWARF_UNWIND_SUPPORT */
+#endif /* __UNWIND_H */