perf evsel: Rename print_ip() to fprintf_sym()

As it receives a FILE, and its more than just the IP, which can even be
requested not to be printed.

For consistency with other similar methods in tools/perf/, name it as
perf_evsel__fprintf_sym() and make it return the number of bytes
printed, just like 'fprintf(3)'

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-84gawlqa3lhk63nf0t9vnqnn@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-script.c

@@ -579,7 +579,7 @@ static void print_sample_bts(struct perf_sample *sample,
 				print_opts &= ~PRINT_IP_OPT_SRCLINE;
 			}
 		}
-		perf_evsel__print_ip(evsel, sample, al, 0, print_opts,
+		perf_evsel__fprintf_sym(evsel, sample, al, 0, print_opts,
 					scripting_max_stack, stdout);
 	}
 
@@ -788,7 +788,7 @@ static void process_event(struct perf_script *script,
 		else
 			printf("\n");
 
-		perf_evsel__print_ip(evsel, sample, al, 0,
+		perf_evsel__fprintf_sym(evsel, sample, al, 0,
 					output[attr->type].print_ip_opts,
 					scripting_max_stack, stdout);
 	}

tools/perf/builtin-trace.c

@@ -2203,7 +2203,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 			       event->header.type);
 			goto out_put;
 		}
-		perf_evsel__print_ip(evsel, sample, &al, 38, print_opts,
+		perf_evsel__fprintf_sym(evsel, sample, &al, 38, print_opts,
 					scripting_max_stack, trace->output);
 	}
 out:

tools/perf/util/session.c

@@ -1953,11 +1953,12 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 	return NULL;
 }
 
-void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
+int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample,
 			    struct addr_location *al, int left_alignment,
 			    unsigned int print_opts, unsigned int stack_depth,
 			    FILE *fp)
 {
+	int printed = 0;
 	struct callchain_cursor_node *node;
 	int print_ip = print_opts & PRINT_IP_OPT_IP;
 	int print_sym = print_opts & PRINT_IP_OPT_SYM;
@@ -1975,7 +1976,7 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 					      stack_depth) != 0) {
 			if (verbose)
 				error("Failed to resolve callchain. Skipping\n");
-			return;
+			return printed;
 		}
 		callchain_cursor_commit(&callchain_cursor);
 
@@ -1992,71 +1993,66 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 			if (node->sym && node->sym->ignore)
 				goto next;
 
-			fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
+			printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 
 			if (print_ip)
-				fprintf(fp, "%c%16" PRIx64, s, node->ip);
+				printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 
 			if (node->map)
 				addr = node->map->map_ip(node->map, node->ip);
 
 			if (print_sym) {
-				fprintf(fp, " ");
+				printed += fprintf(fp, " ");
 				if (print_symoffset) {
 					node_al.addr = addr;
 					node_al.map  = node->map;
-					symbol__fprintf_symname_offs(node->sym,
-								     &node_al,
-								     fp);
+					printed += symbol__fprintf_symname_offs(node->sym, &node_al, fp);
 				} else
-					symbol__fprintf_symname(node->sym, fp);
+					printed += symbol__fprintf_symname(node->sym, fp);
 			}
 
 			if (print_dso) {
-				fprintf(fp, " (");
-				map__fprintf_dsoname(node->map, fp);
-				fprintf(fp, ")");
+				printed += fprintf(fp, " (");
+				printed += map__fprintf_dsoname(node->map, fp);
+				printed += fprintf(fp, ")");
 			}
 
 			if (print_srcline)
-				map__fprintf_srcline(node->map, addr, "\n  ",
-						     fp);
+				printed += map__fprintf_srcline(node->map, addr, "\n  ", fp);
 
 			if (!print_oneline)
-				fprintf(fp, "\n");
+				printed += fprintf(fp, "\n");
 
 			stack_depth--;
 next:
 			callchain_cursor_advance(&callchain_cursor);
 		}
 
-	} else {
-		if (al->sym && al->sym->ignore)
-			return;
-
-		fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
+	} else if (!(al->sym && al->sym->ignore)) {
+		printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 
 		if (print_ip)
-			fprintf(fp, "%16" PRIx64, sample->ip);
+			printed += fprintf(fp, "%16" PRIx64, sample->ip);
 
 		if (print_sym) {
-			fprintf(fp, " ");
+			printed += fprintf(fp, " ");
 			if (print_symoffset)
-				symbol__fprintf_symname_offs(al->sym, al,
-							     fp);
+				printed += symbol__fprintf_symname_offs(al->sym, al, fp);
 			else
-				symbol__fprintf_symname(al->sym, fp);
+				printed += symbol__fprintf_symname(al->sym, fp);
 		}
 
 		if (print_dso) {
-			fprintf(fp, " (");
-			map__fprintf_dsoname(al->map, fp);
-			fprintf(fp, ")");
+			printed += fprintf(fp, " (");
+			printed += map__fprintf_dsoname(al->map, fp);
+			printed += fprintf(fp, ")");
 		}
 
 		if (print_srcline)
-			map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
+			printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 	}
+
+	return printed;
 }
 
 int perf_session__cpu_bitmap(struct perf_session *session,

tools/perf/util/session.h

@@ -104,7 +104,7 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 					    unsigned int type);
 
-void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
+int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample,
 			    struct addr_location *al, int left_alignment,
 			    unsigned int print_opts, unsigned int stack_depth,
 			    FILE *fp);