Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index f25fae4..0b0c6b5 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -3,18 +3,14 @@
 #define __PERF_SYMBOL 1
 
 #include <linux/types.h>
+#include <linux/refcount.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include "map.h"
-#include "../perf.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <stdio.h>
-#include <byteswap.h>
-#include <libgen.h>
-#include "build-id.h"
-#include "event.h"
 #include "path.h"
+#include "symbol_conf.h"
 
 #ifdef HAVE_LIBELF_SUPPORT
 #include <libelf.h>
@@ -22,7 +18,10 @@
 #endif
 #include <elf.h>
 
-#include "dso.h"
+struct dso;
+struct map;
+struct map_groups;
+struct option;
 
 /*
  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
@@ -39,15 +38,6 @@
 			     GElf_Shdr *shp, const char *name, size_t *idx);
 #endif
 
-#ifndef DMGL_PARAMS
-#define DMGL_NO_OPTS     0              /* For readability... */
-#define DMGL_PARAMS      (1 << 0)       /* Include function args */
-#define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
-#endif
-
-#define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
-#define DSO__NAME_KCORE		"[kernel.kcore]"
-
 /** struct symbol - symtab entry
  *
  * @ignore - resolvable but tools ignore it (e.g. idle routines)
@@ -63,11 +53,12 @@
 	u8		ignore:1;
 	u8		inlined:1;
 	u8		arch_sym;
+	bool		annotate2;
 	char		name[0];
 };
 
 void symbol__delete(struct symbol *sym);
-void symbols__delete(struct rb_root *symbols);
+void symbols__delete(struct rb_root_cached *symbols);
 
 /* symbols__for_each_entry - iterate over symbols (rb_root)
  *
@@ -76,7 +67,7 @@
  * @nd: the 'struct rb_node *' to use as a temporary storage
  */
 #define symbols__for_each_entry(symbols, pos, nd)			\
-	for (nd = rb_first(symbols);					\
+	for (nd = rb_first_cached(symbols);					\
 	     nd && (pos = rb_entry(nd, struct symbol, rb_node));	\
 	     nd = rb_next(nd))
 
@@ -88,68 +79,6 @@
 struct strlist;
 struct intlist;
 
-struct symbol_conf {
-	unsigned short	priv_size;
-	bool		try_vmlinux_path,
-			init_annotation,
-			force,
-			ignore_vmlinux,
-			ignore_vmlinux_buildid,
-			show_kernel_path,
-			use_modules,
-			allow_aliases,
-			sort_by_name,
-			show_nr_samples,
-			show_total_period,
-			use_callchain,
-			cumulate_callchain,
-			show_branchflag_count,
-			exclude_other,
-			show_cpu_utilization,
-			initialized,
-			kptr_restrict,
-			event_group,
-			demangle,
-			demangle_kernel,
-			filter_relative,
-			show_hist_headers,
-			branch_callstack,
-			has_filter,
-			show_ref_callgraph,
-			hide_unresolved,
-			raw_trace,
-			report_hierarchy,
-			inline_name;
-	const char	*vmlinux_name,
-			*kallsyms_name,
-			*source_prefix,
-			*field_sep;
-	const char	*default_guest_vmlinux_name,
-			*default_guest_kallsyms,
-			*default_guest_modules;
-	const char	*guestmount;
-	const char	*dso_list_str,
-			*comm_list_str,
-			*pid_list_str,
-			*tid_list_str,
-			*sym_list_str,
-			*col_width_list_str,
-			*bt_stop_list_str;
-       struct strlist	*dso_list,
-			*comm_list,
-			*sym_list,
-			*dso_from_list,
-			*dso_to_list,
-			*sym_from_list,
-			*sym_to_list,
-			*bt_stop_list;
-	struct intlist	*pid_list,
-			*tid_list;
-	const char	*symfs;
-};
-
-extern struct symbol_conf symbol_conf;
-
 struct symbol_name_rb_node {
 	struct rb_node	rb_node;
 	struct symbol	sym;
@@ -176,31 +105,14 @@
 	u64		unrelocated_addr;
 };
 
-struct map_symbol {
-	struct map    *map;
-	struct symbol *sym;
-};
-
-struct addr_map_symbol {
-	struct map    *map;
-	struct symbol *sym;
-	u64	      addr;
-	u64	      al_addr;
-	u64	      phys_addr;
-};
-
-struct branch_info {
-	struct addr_map_symbol from;
-	struct addr_map_symbol to;
-	struct branch_flags flags;
-	char			*srcline_from;
-	char			*srcline_to;
-};
-
-struct mem_info {
-	struct addr_map_symbol	iaddr;
-	struct addr_map_symbol	daddr;
-	union perf_mem_data_src	data_src;
+struct block_info {
+	struct symbol		*sym;
+	u64			start;
+	u64			end;
+	u64			cycles;
+	u64			cycles_aggr;
+	int			num;
+	int			num_aggr;
 	refcount_t		refcnt;
 };
 
@@ -218,37 +130,6 @@
 	s32	      socket;
 };
 
-struct symsrc {
-	char *name;
-	int fd;
-	enum dso_binary_type type;
-
-#ifdef HAVE_LIBELF_SUPPORT
-	Elf *elf;
-	GElf_Ehdr ehdr;
-
-	Elf_Scn *opdsec;
-	size_t opdidx;
-	GElf_Shdr opdshdr;
-
-	Elf_Scn *symtab;
-	GElf_Shdr symshdr;
-
-	Elf_Scn *dynsym;
-	size_t dynsym_idx;
-	GElf_Shdr dynshdr;
-
-	bool adjust_symbols;
-	bool is_64_bit;
-#endif
-};
-
-void symsrc__destroy(struct symsrc *ss);
-int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
-		 enum dso_binary_type type);
-bool symsrc__has_symtab(struct symsrc *ss);
-bool symsrc__possibly_runtime(struct symsrc *ss);
-
 int dso__load(struct dso *dso, struct map *map);
 int dso__load_vmlinux(struct dso *dso, struct map *map,
 		      const char *vmlinux, bool vmlinux_allocated);
@@ -302,16 +183,19 @@
 int symbol__config_symfs(const struct option *opt __maybe_unused,
 			 const char *dir, int unset __maybe_unused);
 
+struct symsrc;
+
 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 		  struct symsrc *runtime_ss, int kmodule);
 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss);
 
 char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name);
 
-void __symbols__insert(struct rb_root *symbols, struct symbol *sym, bool kernel);
-void symbols__insert(struct rb_root *symbols, struct symbol *sym);
-void symbols__fixup_duplicate(struct rb_root *symbols);
-void symbols__fixup_end(struct rb_root *symbols);
+void __symbols__insert(struct rb_root_cached *symbols, struct symbol *sym,
+		       bool kernel);
+void symbols__insert(struct rb_root_cached *symbols, struct symbol *sym);
+void symbols__fixup_duplicate(struct rb_root_cached *symbols);
+void symbols__fixup_end(struct rb_root_cached *symbols);
 void map_groups__fixup_end(struct map_groups *mg);
 
 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
@@ -349,6 +233,7 @@
 #define SYMBOL_A 0
 #define SYMBOL_B 1
 
+void arch__symbols__fixup_end(struct symbol *p, struct symbol *c);
 int arch__compare_symbol_names(const char *namea, const char *nameb);
 int arch__compare_symbol_names_n(const char *namea, const char *nameb,
 				 unsigned int n);
@@ -379,12 +264,19 @@
 int cleanup_sdt_note_list(struct list_head *sdt_notes);
 int sdt_notes__get_count(struct list_head *start);
 
+#define SDT_PROBES_SCN ".probes"
 #define SDT_BASE_SCN ".stapsdt.base"
 #define SDT_NOTE_SCN  ".note.stapsdt"
 #define SDT_NOTE_TYPE 3
 #define SDT_NOTE_NAME "stapsdt"
 #define NR_ADDR 3
 
+enum {
+	SDT_NOTE_IDX_LOC = 0,
+	SDT_NOTE_IDX_BASE,
+	SDT_NOTE_IDX_REFCTR,
+};
+
 struct mem_info *mem_info__new(void);
 struct mem_info *mem_info__get(struct mem_info *mi);
 void   mem_info__put(struct mem_info *mi);
@@ -397,4 +289,16 @@
 
 #define mem_info__zput(mi) __mem_info__zput(&mi)
 
+struct block_info *block_info__new(void);
+struct block_info *block_info__get(struct block_info *bi);
+void   block_info__put(struct block_info *bi);
+
+static inline void __block_info__zput(struct block_info **bi)
+{
+	block_info__put(*bi);
+	*bi = NULL;
+}
+
+#define block_info__zput(bi) __block_info__zput(&bi)
+
 #endif /* __PERF_SYMBOL */