Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 403 insertions, 0 deletions

diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
new file mode 100644
index 000000000..5399ba232
--- /dev/null
+++ b/tools/perf/util/annotate.h
@@ -0,0 +1,403 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_ANNOTATE_H
+#define __PERF_ANNOTATE_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <linux/types.h>
+#include "symbol.h"
+#include "hist.h"
+#include "sort.h"
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <pthread.h>
+#include <asm/bug.h>
+
+struct ins_ops;
+
+struct ins {
+	const char     *name;
+	struct ins_ops *ops;
+};
+
+struct ins_operands {
+	char	*raw;
+	char	*raw_comment;
+	struct {
+		char	*raw;
+		char	*name;
+		struct symbol *sym;
+		u64	addr;
+		s64	offset;
+		bool	offset_avail;
+		bool	outside;
+	} target;
+	union {
+		struct {
+			char	*raw;
+			char	*name;
+			u64	addr;
+		} source;
+		struct {
+			struct ins	    ins;
+			struct ins_operands *ops;
+		} locked;
+	};
+};
+
+struct arch;
+
+struct ins_ops {
+	void (*free)(struct ins_operands *ops);
+	int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms);
+	int (*scnprintf)(struct ins *ins, char *bf, size_t size,
+			 struct ins_operands *ops);
+};
+
+bool ins__is_jump(const struct ins *ins);
+bool ins__is_call(const struct ins *ins);
+bool ins__is_ret(const struct ins *ins);
+bool ins__is_lock(const struct ins *ins);
+int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
+
+#define ANNOTATION__IPC_WIDTH 6
+#define ANNOTATION__CYCLES_WIDTH 6
+#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
+
+struct annotation_options {
+	bool hide_src_code,
+	     use_offset,
+	     jump_arrows,
+	     print_lines,
+	     full_path,
+	     show_linenr,
+	     show_nr_jumps,
+	     show_nr_samples,
+	     show_total_period,
+	     show_minmax_cycle,
+	     show_asm_raw,
+	     annotate_src;
+	u8   offset_level;
+	int  min_pcnt;
+	int  max_lines;
+	int  context;
+	const char *objdump_path;
+	const char *disassembler_style;
+	unsigned int percent_type;
+};
+
+enum {
+	ANNOTATION__OFFSET_JUMP_TARGETS = 1,
+	ANNOTATION__OFFSET_CALL,
+	ANNOTATION__MAX_OFFSET_LEVEL,
+};
+
+#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS
+
+extern struct annotation_options annotation__default_options;
+
+struct annotation;
+
+struct sym_hist_entry {
+	u64		nr_samples;
+	u64		period;
+};
+
+enum {
+	PERCENT_HITS_LOCAL,
+	PERCENT_HITS_GLOBAL,
+	PERCENT_PERIOD_LOCAL,
+	PERCENT_PERIOD_GLOBAL,
+	PERCENT_MAX,
+};
+
+struct annotation_data {
+	double			 percent[PERCENT_MAX];
+	double			 percent_sum;
+	struct sym_hist_entry	 he;
+};
+
+struct annotation_line {
+	struct list_head	 node;
+	struct rb_node		 rb_node;
+	s64			 offset;
+	char			*line;
+	int			 line_nr;
+	int			 jump_sources;
+	float			 ipc;
+	u64			 cycles;
+	u64			 cycles_max;
+	u64			 cycles_min;
+	size_t			 privsize;
+	char			*path;
+	u32			 idx;
+	int			 idx_asm;
+	int			 data_nr;
+	struct annotation_data	 data[0];
+};
+
+struct disasm_line {
+	struct ins		 ins;
+	struct ins_operands	 ops;
+
+	/* This needs to be at the end. */
+	struct annotation_line	 al;
+};
+
+static inline double annotation_data__percent(struct annotation_data *data,
+					      unsigned int which)
+{
+	return which < PERCENT_MAX ? data->percent[which] : -1;
+}
+
+static inline const char *percent_type_str(unsigned int type)
+{
+	static const char *str[PERCENT_MAX] = {
+		"local hits",
+		"global hits",
+		"local period",
+		"global period",
+	};
+
+	if (WARN_ON(type >= PERCENT_MAX))
+		return "N/A";
+
+	return str[type];
+}
+
+static inline struct disasm_line *disasm_line(struct annotation_line *al)
+{
+	return al ? container_of(al, struct disasm_line, al) : NULL;
+}
+
+/*
+ * Is this offset in the same function as the line it is used?
+ * asm functions jump to other functions, for instance.
+ */
+static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
+{
+	return dl->ops.target.offset_avail && !dl->ops.target.outside;
+}
+
+/*
+ * Can we draw an arrow from the jump to its target, for instance? I.e.
+ * is the jump and its target in the same function?
+ */
+bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym);
+
+void disasm_line__free(struct disasm_line *dl);
+struct annotation_line *
+annotation_line__next(struct annotation_line *pos, struct list_head *head);
+
+struct annotation_write_ops {
+	bool first_line, current_entry, change_color;
+	int  width;
+	void *obj;
+	int  (*set_color)(void *obj, int color);
+	void (*set_percent_color)(void *obj, double percent, bool current);
+	int  (*set_jumps_percent_color)(void *obj, int nr, bool current);
+	void (*printf)(void *obj, const char *fmt, ...);
+	void (*write_graph)(void *obj, int graph);
+};
+
+void annotation_line__write(struct annotation_line *al, struct annotation *notes,
+			    struct annotation_write_ops *ops,
+			    struct annotation_options *opts);
+
+int __annotation__scnprintf_samples_period(struct annotation *notes,
+					   char *bf, size_t size,
+					   struct perf_evsel *evsel,
+					   bool show_freq);
+
+int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
+size_t disasm__fprintf(struct list_head *head, FILE *fp);
+void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel);
+
+struct sym_hist {
+	u64		      nr_samples;
+	u64		      period;
+	struct sym_hist_entry addr[0];
+};
+
+struct cyc_hist {
+	u64	start;
+	u64	cycles;
+	u64	cycles_aggr;
+	u64	cycles_max;
+	u64	cycles_min;
+	u32	num;
+	u32	num_aggr;
+	u8	have_start;
+	/* 1 byte padding */
+	u16	reset;
+};
+
+/** struct annotated_source - symbols with hits have this attached as in sannotation
+ *
+ * @histograms: Array of addr hit histograms per event being monitored
+ * nr_histograms: This may not be the same as evsel->evlist->nr_entries if
+ * 		  we have more than a group in a evlist, where we will want
+ * 		  to see each group separately, that is why symbol__annotate2()
+ * 		  sets src->nr_histograms to evsel->nr_members.
+ * @lines: If 'print_lines' is specified, per source code line percentages
+ * @source: source parsed from a disassembler like objdump -dS
+ * @cyc_hist: Average cycles per basic block
+ *
+ * lines is allocated, percentages calculated and all sorted by percentage
+ * when the annotation is about to be presented, so the percentages are for
+ * one of the entries in the histogram array, i.e. for the event/counter being
+ * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
+ * returns.
+ */
+struct annotated_source {
+	struct list_head   source;
+	int    		   nr_histograms;
+	size_t		   sizeof_sym_hist;
+	struct cyc_hist	   *cycles_hist;
+	struct sym_hist	   *histograms;
+};
+
+struct annotation {
+	pthread_mutex_t		lock;
+	u64			max_coverage;
+	u64			start;
+	struct annotation_options *options;
+	struct annotation_line	**offsets;
+	int			nr_events;
+	int			nr_jumps;
+	int			max_jump_sources;
+	int			nr_entries;
+	int			nr_asm_entries;
+	u16			max_line_len;
+	struct {
+		u8		addr;
+		u8		jumps;
+		u8		target;
+		u8		min_addr;
+		u8		max_addr;
+	} widths;
+	bool			have_cycles;
+	struct annotated_source *src;
+};
+
+static inline int annotation__cycles_width(struct annotation *notes)
+{
+	if (notes->have_cycles && notes->options->show_minmax_cycle)
+		return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
+
+	return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
+}
+
+static inline int annotation__pcnt_width(struct annotation *notes)
+{
+	return (notes->options->show_total_period ? 12 : 7) * notes->nr_events;
+}
+
+static inline bool annotation_line__filter(struct annotation_line *al, struct annotation *notes)
+{
+	return notes->options->hide_src_code && al->offset == -1;
+}
+
+void annotation__set_offsets(struct annotation *notes, s64 size);
+void annotation__compute_ipc(struct annotation *notes, size_t size);
+void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym);
+void annotation__update_column_widths(struct annotation *notes);
+void annotation__init_column_widths(struct annotation *notes, struct symbol *sym);
+
+static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx)
+{
+	return ((void *)src->histograms) + (src->sizeof_sym_hist * idx);
+}
+
+static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
+{
+	return annotated_source__histogram(notes->src, idx);
+}
+
+static inline struct annotation *symbol__annotation(struct symbol *sym)
+{
+	return (void *)sym - symbol_conf.priv_size;
+}
+
+int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
+				 struct perf_evsel *evsel);
+
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+				    struct addr_map_symbol *start,
+				    unsigned cycles);
+
+int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
+				 struct perf_evsel *evsel, u64 addr);
+
+struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
+void symbol__annotate_zero_histograms(struct symbol *sym);
+
+int symbol__annotate(struct symbol *sym, struct map *map,
+		     struct perf_evsel *evsel, size_t privsize,
+		     struct annotation_options *options,
+		     struct arch **parch);
+int symbol__annotate2(struct symbol *sym, struct map *map,
+		      struct perf_evsel *evsel,
+		      struct annotation_options *options,
+		      struct arch **parch);
+
+enum symbol_disassemble_errno {
+	SYMBOL_ANNOTATE_ERRNO__SUCCESS		= 0,
+
+	/*
+	 * Choose an arbitrary negative big number not to clash with standard
+	 * errno since SUS requires the errno has distinct positive values.
+	 * See 'Issue 6' in the link below.
+	 *
+	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
+	 */
+	__SYMBOL_ANNOTATE_ERRNO__START		= -10000,
+
+	SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX	= __SYMBOL_ANNOTATE_ERRNO__START,
+
+	__SYMBOL_ANNOTATE_ERRNO__END,
+};
+
+int symbol__strerror_disassemble(struct symbol *sym, struct map *map,
+				 int errnum, char *buf, size_t buflen);
+
+int symbol__annotate_printf(struct symbol *sym, struct map *map,
+			    struct perf_evsel *evsel,
+			    struct annotation_options *options);
+void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
+void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
+void annotated_source__purge(struct annotated_source *as);
+
+int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel,
+				struct annotation_options *opts);
+
+bool ui__has_annotation(void);
+
+int symbol__tty_annotate(struct symbol *sym, struct map *map,
+			 struct perf_evsel *evsel, struct annotation_options *opts);
+
+int symbol__tty_annotate2(struct symbol *sym, struct map *map,
+			  struct perf_evsel *evsel, struct annotation_options *opts);
+
+#ifdef HAVE_SLANG_SUPPORT
+int symbol__tui_annotate(struct symbol *sym, struct map *map,
+			 struct perf_evsel *evsel,
+			 struct hist_browser_timer *hbt,
+			 struct annotation_options *opts);
+#else
+static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
+				struct map *map __maybe_unused,
+				struct perf_evsel *evsel  __maybe_unused,
+				struct hist_browser_timer *hbt __maybe_unused,
+				struct annotation_options *opts __maybe_unused)
+{
+	return 0;
+}
+#endif
+
+void annotation_config__init(void);
+
+int annotate_parse_percent_type(const struct option *opt, const char *_str,
+				int unset);
+#endif	/* __PERF_ANNOTATE_H */