path: root/tools/perf/ui/browsers/annotate.c

// SPDX-License-Identifier: GPL-2.0
#include "../browser.h"
#include "../helpline.h"
#include "../ui.h"
#include "../../util/annotate.h"
#include "../../util/debug.h"
#include "../../util/dso.h"
#include "../../util/hist.h"
#include "../../util/sort.h"
#include "../../util/map.h"
#include "../../util/mutex.h"
#include "../../util/symbol.h"
#include "../../util/evsel.h"
#include "../../util/evlist.h"
#include <inttypes.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/zalloc.h>
#include <sys/ttydefaults.h>
#include <asm/bug.h>

struct arch;

struct annotate_browser {
	struct ui_browser	    b;
	struct rb_root		    entries;
	struct rb_node		   *curr_hot;
	struct annotation_line	   *selection;
	struct arch		   *arch;
	bool			    searching_backwards;
	char			    search_bf[128];
};

static inline struct annotation *browser__annotation(struct ui_browser *browser)
{
	struct map_symbol *ms = browser->priv;
	return symbol__annotation(ms->sym);
}

static bool disasm_line__filter(struct ui_browser *browser __maybe_unused, void *entry)
{
	struct annotation_line *al = list_entry(entry, struct annotation_line, node);
	return annotation_line__filter(al);
}

static int ui_browser__jumps_percent_color(struct ui_browser *browser, int nr, bool current)
{
	struct annotation *notes = browser__annotation(browser);

	if (current && (!browser->use_navkeypressed || browser->navkeypressed))
		return HE_COLORSET_SELECTED;
	if (nr == notes->src->max_jump_sources)
		return HE_COLORSET_TOP;
	if (nr > 1)
		return HE_COLORSET_MEDIUM;
	return HE_COLORSET_NORMAL;
}

static int ui_browser__set_jumps_percent_color(void *browser, int nr, bool current)
{
	 int color = ui_browser__jumps_percent_color(browser, nr, current);
	 return ui_browser__set_color(browser, color);
}

static int annotate_browser__set_color(void *browser, int color)
{
	return ui_browser__set_color(browser, color);
}

static void annotate_browser__write_graph(void *browser, int graph)
{
	ui_browser__write_graph(browser, graph);
}

static void annotate_browser__set_percent_color(void *browser, double percent, bool current)
{
	ui_browser__set_percent_color(browser, percent, current);
}

static void annotate_browser__printf(void *browser, const char *fmt, ...)
{
	va_list args;

	va_start(args, fmt);
	ui_browser__vprintf(browser, fmt, args);
	va_end(args);
}

static void annotate_browser__write(struct ui_browser *browser, void *entry, int row)
{
	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
	struct annotation *notes = browser__annotation(browser);
	struct annotation_line *al = list_entry(entry, struct annotation_line, node);
	const bool is_current_entry = ui_browser__is_current_entry(browser, row);
	struct annotation_write_ops ops = {
		.first_line		 = row == 0,
		.current_entry		 = is_current_entry,
		.change_color		 = (!annotate_opts.hide_src_code &&
					    (!is_current_entry ||
					     (browser->use_navkeypressed &&
					      !browser->navkeypressed))),
		.width			 = browser->width,
		.obj			 = browser,
		.set_color		 = annotate_browser__set_color,
		.set_percent_color	 = annotate_browser__set_percent_color,
		.set_jumps_percent_color = ui_browser__set_jumps_percent_color,
		.printf			 = annotate_browser__printf,
		.write_graph		 = annotate_browser__write_graph,
	};

	/* The scroll bar isn't being used */
	if (!browser->navkeypressed)
		ops.width += 1;

	annotation_line__write(al, notes, &ops);

	if (ops.current_entry)
		ab->selection = al;
}

static int is_fused(struct annotate_browser *ab, struct disasm_line *cursor)
{
	struct disasm_line *pos = list_prev_entry(cursor, al.node);
	const char *name;
	int diff = 1;

	while (pos && pos->al.offset == -1) {
		pos = list_prev_entry(pos, al.node);
		if (!annotate_opts.hide_src_code)
			diff++;
	}

	if (!pos)
		return 0;

	if (ins__is_lock(&pos->ins))
		name = pos->ops.locked.ins.name;
	else
		name = pos->ins.name;

	if (!name || !cursor->ins.name)
		return 0;

	if (ins__is_fused(ab->arch, name, cursor->ins.name))
		return diff;
	return 0;
}

static void annotate_browser__draw_current_jump(struct ui_browser *browser)
{
	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
	struct disasm_line *cursor = disasm_line(ab->selection);
	struct annotation_line *target;
	unsigned int from, to;
	struct map_symbol *ms = ab->b.priv;
	struct symbol *sym = ms->sym;
	struct annotation *notes = symbol__annotation(sym);
	u8 pcnt_width = annotation__pcnt_width(notes);
	u8 cntr