perf annotate: Move annotation_line array from TUI to generic code

This is needed to reduce the differences between the TUI mode and the
other annotation UIs, next csets will move that code to the UI-neutral
annotation library. Leaving it in place for now to ease review.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-gz09ahsd5xm1eip7ura5ow6x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browsers/annotate.c

@@ -40,7 +40,6 @@ struct annotate_browser {
 	struct rb_root		    entries;
 	struct rb_node		   *curr_hot;
 	struct annotation_line	   *selection;
-	struct annotation_line	  **offsets;
 	struct arch		   *arch;
 	int			    nr_events;
 	u64			    start;
@@ -335,9 +334,9 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
 	 *  name right after the '<' token and probably treating this like a
 	 *  'call' instruction.
 	 */
-	target = ab->offsets[cursor->ops.target.offset];
+	target = notes->offsets[cursor->ops.target.offset];
 	if (target == NULL) {
-		ui_helpline__printf("WARN: jump target inconsistency, press 'o', ab->offsets[%#x] = NULL\n",
+		ui_helpline__printf("WARN: jump target inconsistency, press 'o', notes->offsets[%#x] = NULL\n",
 				    cursor->ops.target.offset);
 		return;
 	}
@@ -969,25 +968,25 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 }
 
 
-static unsigned count_insn(struct annotate_browser *browser, u64 start, u64 end)
+static unsigned count_insn(struct annotation *notes, u64 start, u64 end)
 {
 	unsigned n_insn = 0;
 	u64 offset;
 
 	for (offset = start; offset <= end; offset++) {
-		if (browser->offsets[offset])
+		if (notes->offsets[offset])
 			n_insn++;
 	}
 	return n_insn;
 }
 
-static void count_and_fill(struct annotate_browser *browser, u64 start, u64 end,
+static void count_and_fill(struct annotation *notes, u64 start, u64 end,
 			   struct cyc_hist *ch)
 {
 	unsigned n_insn;
 	u64 offset;
 
-	n_insn = count_insn(browser, start, end);
+	n_insn = count_insn(notes, start, end);
 	if (n_insn && ch->num && ch->cycles) {
 		float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
 
@@ -996,7 +995,7 @@ static void count_and_fill(struct annotate_browser *browser, u64 start, u64 end,
 			return;
 
 		for (offset = start; offset <= end; offset++) {
-			struct annotation_line *al = browser->offsets[offset];
+			struct annotation_line *al = notes->offsets[offset];
 
 			if (al)
 				al->ipc = ipc;
@@ -1009,11 +1008,9 @@ static void count_and_fill(struct annotate_browser *browser, u64 start, u64 end,
  * annotate, but right now we need the per byte offsets arrays,
  * which are only here.
  */
-static void annotate__compute_ipc(struct annotate_browser *browser, size_t size,
-			   struct symbol *sym)
+static void annotate__compute_ipc(struct annotation *notes, size_t size)
 {
 	u64 offset;
-	struct annotation *notes = symbol__annotation(sym);
 
 	if (!notes->src || !notes->src->cycles_hist)
 		return;
@@ -1027,8 +1024,8 @@ static void annotate__compute_ipc(struct annotate_browser *browser, size_t size,
 			struct annotation_line *al;
 
 			if (ch->have_start)
-				count_and_fill(browser, ch->start, offset, ch);
-			al = browser->offsets[offset];
+				count_and_fill(notes, ch->start, offset, ch);
+			al = notes->offsets[offset];
 			if (al && ch->num_aggr)
 				al->cycles = ch->cycles_aggr / ch->num_aggr;
 			notes->have_cycles = true;
@@ -1043,13 +1040,14 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
 	u64 offset;
 	struct map_symbol *ms = browser->b.priv;
 	struct symbol *sym = ms->sym;
+	struct annotation *notes = symbol__annotation(sym);
 
 	/* PLT symbols contain external offsets */
 	if (strstr(sym->name, "@plt"))
 		return;
 
 	for (offset = 0; offset < size; ++offset) {
-		struct annotation_line *al = browser->offsets[offset];
+		struct annotation_line *al = notes->offsets[offset];
 		struct disasm_line *dl;
 		struct browser_line *blt;
 
@@ -1058,7 +1056,7 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
 		if (!disasm_line__is_valid_jump(dl, sym))
 			continue;
 
-		al = browser->offsets[dl->ops.target.offset];
+		al = notes->offsets[dl->ops.target.offset];
 
 		/*
  		 * FIXME: Oops, no jump target? Buggy disassembler? Or do we
@@ -1089,7 +1087,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 			 struct hist_browser_timer *hbt)
 {
 	struct annotation_line *al;
-	struct annotation *notes;
+	struct annotation *notes = symbol__annotation(sym);
 	size_t size;
 	struct map_symbol ms = {
 		.map = map,
@@ -1116,8 +1114,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 	if (map->dso->annotate_warned)
 		return -1;
 
-	browser.offsets = zalloc(size * sizeof(struct annotation_line *));
-	if (browser.offsets == NULL) {
+	notes->offsets = zalloc(size * sizeof(struct annotation_line *));
+	if (notes->offsets == NULL) {
 		ui__error("Not enough memory!");
 		return -1;
 	}
@@ -1137,7 +1135,6 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 
 	ui_helpline__push("Press ESC to exit");
 
-	notes = symbol__annotation(sym);
 	browser.start = map__rip_2objdump(map, sym->start);
 
 	list_for_each_entry(al, &notes->src->source, node) {
@@ -1158,13 +1155,13 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 			 * E.g. copy_user_generic_unrolled
  			 */
 			if (al->offset < (s64)size)
-				browser.offsets[al->offset] = al;
+				notes->offsets[al->offset] = al;
 		} else
 			bpos->idx_asm = -1;
 	}
 
 	annotate_browser__mark_jump_targets(&browser, size);
-	annotate__compute_ipc(&browser, size, sym);
+	annotate__compute_ipc(notes, size);
 
 	browser.addr_width = browser.target_width = browser.min_addr_width = hex_width(size);
 	browser.max_addr_width = hex_width(sym->end);
@@ -1184,7 +1181,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 	annotated_source__purge(notes->src);
 
 out_free_offsets:
-	free(browser.offsets);
+	zfree(&notes->offsets);
 	return ret;
 }
 

tools/perf/util/annotate.h

@@ -164,6 +164,7 @@ struct annotated_source {
 struct annotation {
 	pthread_mutex_t		lock;
 	u64			max_coverage;
+	struct annotation_line	**offsets;
 	bool			have_cycles;
 	struct annotated_source *src;
 };