Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 401 insertions, 0 deletions

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
new file mode 100644
index 000000000..76ef2facd
--- /dev/null
+++ b/tools/perf/util/symbol.h
@@ -0,0 +1,401 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_SYMBOL
+#define __PERF_SYMBOL 1
+
+#include <linux/types.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"
+
+#ifdef HAVE_LIBELF_SUPPORT
+#include <libelf.h>
+#include <gelf.h>
+#endif
+#include <elf.h>
+
+#include "dso.h"
+
+/*
+ * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
+ * for newer versions we can use mmap to reduce memory usage:
+ */
+#ifdef HAVE_LIBELF_MMAP_SUPPORT
+# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
+#else
+# define PERF_ELF_C_READ_MMAP ELF_C_READ
+#endif
+
+#ifdef HAVE_LIBELF_SUPPORT
+Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
+			     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)
+ */
+struct symbol {
+	struct rb_node	rb_node;
+	u64		start;
+	u64		end;
+	u16		namelen;
+	u8		type:4;
+	u8		binding:4;
+	u8		idle:1;
+	u8		ignore:1;
+	u8		inlined:1;
+	u8		arch_sym;
+	char		name[0];
+};
+
+void symbol__delete(struct symbol *sym);
+void symbols__delete(struct rb_root *symbols);
+
+/* symbols__for_each_entry - iterate over symbols (rb_root)
+ *
+ * @symbols: the rb_root of symbols
+ * @pos: the 'struct symbol *' to use as a loop cursor
+ * @nd: the 'struct rb_node *' to use as a temporary storage
+ */
+#define symbols__for_each_entry(symbols, pos, nd)			\
+	for (nd = rb_first(symbols);					\
+	     nd && (pos = rb_entry(nd, struct symbol, rb_node));	\
+	     nd = rb_next(nd))
+
+static inline size_t symbol__size(const struct symbol *sym)
+{
+	return sym->end - sym->start;
+}
+
+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;
+};
+
+static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
+{
+	return path__join(bf, size, symbol_conf.symfs, path);
+}
+
+#define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
+
+extern int vmlinux_path__nr_entries;
+extern char **vmlinux_path;
+
+static inline void *symbol__priv(struct symbol *sym)
+{
+	return ((void *)sym) - symbol_conf.priv_size;
+}
+
+struct ref_reloc_sym {
+	const char	*name;
+	u64		addr;
+	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;
+	refcount_t		refcnt;
+};
+
+struct addr_location {
+	struct machine *machine;
+	struct thread *thread;
+	struct map    *map;
+	struct symbol *sym;
+	const char    *srcline;
+	u64	      addr;
+	char	      level;
+	u8	      filtered;
+	u8	      cpumode;
+	s32	      cpu;
+	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);
+int dso__load_vmlinux_path(struct dso *dso, struct map *map);
+int __dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
+			 bool no_kcore);
+int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map);
+
+void dso__insert_symbol(struct dso *dso,
+			struct symbol *sym);
+
+struct symbol *dso__find_symbol(struct dso *dso, u64 addr);
+struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name);
+
+struct symbol *symbol__next_by_name(struct symbol *sym);
+
+struct symbol *dso__first_symbol(struct dso *dso);
+struct symbol *dso__last_symbol(struct dso *dso);
+struct symbol *dso__next_symbol(struct symbol *sym);
+
+enum dso_type dso__type_fd(int fd);
+
+int filename__read_build_id(const char *filename, void *bf, size_t size);
+int sysfs__read_build_id(const char *filename, void *bf, size_t size);
+int modules__parse(const char *filename, void *arg,
+		   int (*process_module)(void *arg, const char *name,
+					 u64 start, u64 size));
+int filename__read_debuglink(const char *filename, char *debuglink,
+			     size_t size);
+
+struct perf_env;
+int symbol__init(struct perf_env *env);
+void symbol__exit(void);
+void symbol__elf_init(void);
+int symbol__annotation_init(void);
+
+struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name);
+size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
+				      const struct addr_location *al,
+				      bool unknown_as_addr,
+				      bool print_offsets, FILE *fp);
+size_t symbol__fprintf_symname_offs(const struct symbol *sym,
+				    const struct addr_location *al, FILE *fp);
+size_t __symbol__fprintf_symname(const struct symbol *sym,
+				 const struct addr_location *al,
+				 bool unknown_as_addr, FILE *fp);
+size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
+size_t symbol__fprintf(struct symbol *sym, FILE *fp);
+bool symbol__restricted_filename(const char *filename,
+				 const char *restricted_filename);
+int symbol__config_symfs(const struct option *opt __maybe_unused,
+			 const char *dir, int unset __maybe_unused);
+
+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 map_groups__fixup_end(struct map_groups *mg);
+
+typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
+int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
+		    bool *is_64_bit);
+
+#define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
+
+struct kcore_extract {
+	char *kcore_filename;
+	u64 addr;
+	u64 offs;
+	u64 len;
+	char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
+	int fd;
+};
+
+int kcore_extract__create(struct kcore_extract *kce);
+void kcore_extract__delete(struct kcore_extract *kce);
+
+int kcore_copy(const char *from_dir, const char *to_dir);
+int compare_proc_modules(const char *from, const char *to);
+
+int setup_list(struct strlist **list, const char *list_str,
+	       const char *list_name);
+int setup_intlist(struct intlist **list, const char *list_str,
+		  const char *list_name);
+
+#ifdef HAVE_LIBELF_SUPPORT
+bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
+void arch__sym_update(struct symbol *s, GElf_Sym *sym);
+#endif
+
+const char *arch__normalize_symbol_name(const char *name);
+#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);
+int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
+
+enum symbol_tag_include {
+	SYMBOL_TAG_INCLUDE__NONE = 0,
+	SYMBOL_TAG_INCLUDE__DEFAULT_ONLY
+};
+
+int symbol__match_symbol_name(const char *namea, const char *nameb,
+			      enum symbol_tag_include includes);
+
+/* structure containing an SDT note's info */
+struct sdt_note {
+	char *name;			/* name of the note*/
+	char *provider;			/* provider name */
+	char *args;
+	bool bit32;			/* whether the location is 32 bits? */
+	union {				/* location, base and semaphore addrs */
+		Elf64_Addr a64[3];
+		Elf32_Addr a32[3];
+	} addr;
+	struct list_head note_list;	/* SDT notes' list */
+};
+
+int get_sdt_note_list(struct list_head *head, const char *target);
+int cleanup_sdt_note_list(struct list_head *sdt_notes);
+int sdt_notes__get_count(struct list_head *start);
+
+#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
+
+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);
+
+static inline void __mem_info__zput(struct mem_info **mi)
+{
+	mem_info__put(*mi);
+	*mi = NULL;
+}
+
+#define mem_info__zput(mi) __mem_info__zput(&mi)
+
+#endif /* __PERF_SYMBOL */