Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/util/map_groups.h b/tools/perf/util/map_groups.h
new file mode 100644
index 0000000..77252e1
--- /dev/null
+++ b/tools/perf/util/map_groups.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_MAP_GROUPS_H
+#define __PERF_MAP_GROUPS_H
+
+#include <linux/refcount.h>
+#include <linux/rbtree.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <linux/types.h>
+#include "rwsem.h"
+
+struct ref_reloc_sym;
+struct machine;
+struct map;
+struct thread;
+
+struct maps {
+ struct rb_root entries;
+ struct rb_root names;
+ struct rw_semaphore lock;
+};
+
+void maps__insert(struct maps *maps, struct map *map);
+void maps__remove(struct maps *maps, struct map *map);
+struct map *maps__find(struct maps *maps, u64 addr);
+struct map *maps__first(struct maps *maps);
+struct map *map__next(struct map *map);
+struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp);
+
+struct map_groups {
+ struct maps maps;
+ struct machine *machine;
+ refcount_t refcnt;
+#ifdef HAVE_LIBUNWIND_SUPPORT
+ void *addr_space;
+ struct unwind_libunwind_ops *unwind_libunwind_ops;
+#endif
+};
+
+#define KMAP_NAME_LEN 256
+
+struct kmap {
+ struct ref_reloc_sym *ref_reloc_sym;
+ struct map_groups *kmaps;
+ char name[KMAP_NAME_LEN];
+};
+
+struct map_groups *map_groups__new(struct machine *machine);
+void map_groups__delete(struct map_groups *mg);
+bool map_groups__empty(struct map_groups *mg);
+
+static inline struct map_groups *map_groups__get(struct map_groups *mg)
+{
+ if (mg)
+ refcount_inc(&mg->refcnt);
+ return mg;
+}
+
+void map_groups__put(struct map_groups *mg);
+void map_groups__init(struct map_groups *mg, struct machine *machine);
+void map_groups__exit(struct map_groups *mg);
+int map_groups__clone(struct thread *thread, struct map_groups *parent);
+size_t map_groups__fprintf(struct map_groups *mg, FILE *fp);
+
+void map_groups__insert(struct map_groups *mg, struct map *map);
+
+static inline void map_groups__remove(struct map_groups *mg, struct map *map)
+{
+ maps__remove(&mg->maps, map);
+}
+
+static inline struct map *map_groups__find(struct map_groups *mg, u64 addr)
+{
+ return maps__find(&mg->maps, addr);
+}
+
+struct map *map_groups__first(struct map_groups *mg);
+
+static inline struct map *map_groups__next(struct map *map)
+{
+ return map__next(map);
+}
+
+struct symbol *map_groups__find_symbol(struct map_groups *mg, u64 addr, struct map **mapp);
+struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, const char *name, struct map **mapp);
+
+struct addr_map_symbol;
+
+int map_groups__find_ams(struct addr_map_symbol *ams);
+
+int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, FILE *fp);
+
+struct map *map_groups__find_by_name(struct map_groups *mg, const char *name);
+
+int map_groups__merge_in(struct map_groups *kmaps, struct map *new_map);
+
+#endif // __PERF_MAP_GROUPS_H