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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/tools/perf/util/dso.h
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@@ -2,17 +2,22 @@
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 #ifndef __PERF_DSO
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 #define __PERF_DSO
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+#include <pthread.h>
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 #include <linux/refcount.h>
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 #include <linux/types.h>
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 #include <linux/rbtree.h>
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 #include <sys/types.h>
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 #include <stdbool.h>
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-#include "rwsem.h"
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-#include <linux/types.h>
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+#include <stdio.h>
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 #include <linux/bitops.h>
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-#include "map.h"
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-#include "namespaces.h"
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 #include "build-id.h"
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+
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+struct machine;
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+struct map;
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+struct perf_env;
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+
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+#define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
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+#define DSO__NAME_KCORE		"[kernel.kcore]"
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 enum dso_binary_type {
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 	DSO_BINARY_TYPE__KALLSYMS = 0,
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@@ -35,13 +40,16 @@
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 	DSO_BINARY_TYPE__KCORE,
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 	DSO_BINARY_TYPE__GUEST_KCORE,
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 	DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
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+	DSO_BINARY_TYPE__BPF_PROG_INFO,
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+	DSO_BINARY_TYPE__BPF_IMAGE,
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+	DSO_BINARY_TYPE__OOL,
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 	DSO_BINARY_TYPE__NOT_FOUND,
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 };
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-enum dso_kernel_type {
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-	DSO_TYPE_USER = 0,
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-	DSO_TYPE_KERNEL,
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-	DSO_TYPE_GUEST_KERNEL
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+enum dso_space_type {
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+	DSO_SPACE__USER = 0,
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+	DSO_SPACE__KERNEL,
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+	DSO_SPACE__KERNEL_GUEST
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 };
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 enum dso_swap_type {
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@@ -117,21 +125,21 @@
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 #define DSO__DATA_CACHE_SIZE 4096
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 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
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+/*
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+ * Data about backing storage DSO, comes from PERF_RECORD_MMAP2 meta events
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+ */
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+struct dso_id {
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+	u32	maj;
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+	u32	min;
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+	u64	ino;
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+	u64	ino_generation;
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+};
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+
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 struct dso_cache {
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 	struct rb_node	rb_node;
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 	u64 offset;
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 	u64 size;
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-	char data[0];
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-};
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-
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-/*
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- * DSOs are put into both a list for fast iteration and rbtree for fast
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- * long name lookup.
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- */
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-struct dsos {
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-	struct list_head head;
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-	struct rb_root	 root;	/* rbtree root sorted by long name */
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-	struct rw_semaphore lock;
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+	char data[];
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 };
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 struct auxtrace_cache;
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@@ -141,10 +149,10 @@
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 	struct list_head node;
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 	struct rb_node	 rb_node;	/* rbtree node sorted by long name */
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 	struct rb_root	 *root;		/* root of rbtree that rb_node is in */
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-	struct rb_root	 symbols;
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-	struct rb_root	 symbol_names;
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-	struct rb_root	 inlined_nodes;
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-	struct rb_root	 srclines;
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+	struct rb_root_cached symbols;
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+	struct rb_root_cached symbol_names;
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+	struct rb_root_cached inlined_nodes;
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+	struct rb_root_cached srclines;
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 	struct {
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 		u64		addr;
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 		struct symbol	*symbol;
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@@ -152,7 +160,7 @@
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 	void		 *a2l;
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 	char		 *symsrc_filename;
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 	unsigned int	 a2l_fails;
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-	enum dso_kernel_type	kernel;
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+	enum dso_space_type	kernel;
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 	enum dso_swap_type	needs_swap;
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 	enum dso_binary_type	symtab_type;
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 	enum dso_binary_type	binary_type;
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@@ -168,7 +176,7 @@
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 	bool		 sorted_by_name;
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 	bool		 loaded;
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 	u8		 rel;
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-	u8		 build_id[BUILD_ID_SIZE];
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+	struct build_id	 bid;
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 	u64		 text_offset;
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 	const char	 *short_name;
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 	const char	 *long_name;
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@@ -189,14 +197,21 @@
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 		u64		 debug_frame_offset;
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 		u64		 eh_frame_hdr_offset;
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 	} data;
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+	/* bpf prog information */
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+	struct {
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+		u32		id;
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+		u32		sub_id;
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+		struct perf_env	*env;
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+	} bpf_prog;
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 	union { /* Tool specific area */
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 		void	 *priv;
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 		u64	 db_id;
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 	};
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 	struct nsinfo	*nsinfo;
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+	struct dso_id	 id;
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 	refcount_t	 refcnt;
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-	char		 name[0];
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+	char		 name[];
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 };
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 /* dso__for_each_symbol - iterate over the symbols of given type
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@@ -213,9 +228,11 @@
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 	dso->loaded = true;
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 }
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+struct dso *dso__new_id(const char *name, struct dso_id *id);
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 struct dso *dso__new(const char *name);
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 void dso__delete(struct dso *dso);
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+int dso__cmp_id(struct dso *a, struct dso *b);
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 void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
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 void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated);
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@@ -236,15 +253,15 @@
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 static inline bool dso__has_symbols(const struct dso *dso)
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 {
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-	return !RB_EMPTY_ROOT(&dso->symbols);
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+	return !RB_EMPTY_ROOT(&dso->symbols.rb_root);
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 }
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 bool dso__sorted_by_name(const struct dso *dso);
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 void dso__set_sorted_by_name(struct dso *dso);
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 void dso__sort_by_name(struct dso *dso);
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-void dso__set_build_id(struct dso *dso, void *build_id);
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-bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
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+void dso__set_build_id(struct dso *dso, struct build_id *bid);
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+bool dso__build_id_equal(const struct dso *dso, struct build_id *bid);
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 void dso__read_running_kernel_build_id(struct dso *dso,
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 				       struct machine *machine);
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 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
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@@ -284,6 +301,8 @@
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  *   dso__data_size
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  *   dso__data_read_offset
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  *   dso__data_read_addr
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+ *   dso__data_write_cache_offs
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+ *   dso__data_write_cache_addr
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  *
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  * Please refer to the dso.c object code for each function and
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  * arguments documentation. Following text tries to explain the
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@@ -323,6 +342,7 @@
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 void dso__data_put_fd(struct dso *dso);
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 void dso__data_close(struct dso *dso);
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+int dso__data_file_size(struct dso *dso, struct machine *machine);
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 off_t dso__data_size(struct dso *dso, struct machine *machine);
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 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
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 			      u64 offset, u8 *data, ssize_t size);
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@@ -330,27 +350,18 @@
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 			    struct machine *machine, u64 addr,
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 			    u8 *data, ssize_t size);
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 bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);
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+ssize_t dso__data_write_cache_offs(struct dso *dso, struct machine *machine,
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+				   u64 offset, const u8 *data, ssize_t size);
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+ssize_t dso__data_write_cache_addr(struct dso *dso, struct map *map,
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+				   struct machine *machine, u64 addr,
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+				   const u8 *data, ssize_t size);
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 struct map *dso__new_map(const char *name);
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 struct dso *machine__findnew_kernel(struct machine *machine, const char *name,
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 				    const char *short_name, int dso_type);
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-void __dsos__add(struct dsos *dsos, struct dso *dso);
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-void dsos__add(struct dsos *dsos, struct dso *dso);
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-struct dso *__dsos__addnew(struct dsos *dsos, const char *name);
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-struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
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-struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short);
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-struct dso *__dsos__findnew(struct dsos *dsos, const char *name);
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-struct dso *dsos__findnew(struct dsos *dsos, const char *name);
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-bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
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-
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 void dso__reset_find_symbol_cache(struct dso *dso);
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-size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
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-			       bool (skip)(struct dso *dso, int parm), int parm);
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-size_t __dsos__fprintf(struct list_head *head, FILE *fp);
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-
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-size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
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 size_t dso__fprintf_symbols_by_name(struct dso *dso, FILE *fp);
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 size_t dso__fprintf(struct dso *dso, FILE *fp);
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