xref: /openbmc/linux/tools/perf/util/evsel_fprintf.c (revision 95b384f9)
1 #include <stdio.h>
2 #include <stdbool.h>
3 #include <traceevent/event-parse.h>
4 #include "evsel.h"
5 #include "callchain.h"
6 #include "map.h"
7 #include "symbol.h"
8 
9 static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
10 {
11 	va_list args;
12 	int ret = 0;
13 
14 	if (!*first) {
15 		ret += fprintf(fp, ",");
16 	} else {
17 		ret += fprintf(fp, ":");
18 		*first = false;
19 	}
20 
21 	va_start(args, fmt);
22 	ret += vfprintf(fp, fmt, args);
23 	va_end(args);
24 	return ret;
25 }
26 
27 static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, void *priv)
28 {
29 	return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
30 }
31 
32 int perf_evsel__fprintf(struct perf_evsel *evsel,
33 			struct perf_attr_details *details, FILE *fp)
34 {
35 	bool first = true;
36 	int printed = 0;
37 
38 	if (details->event_group) {
39 		struct perf_evsel *pos;
40 
41 		if (!perf_evsel__is_group_leader(evsel))
42 			return 0;
43 
44 		if (evsel->nr_members > 1)
45 			printed += fprintf(fp, "%s{", evsel->group_name ?: "");
46 
47 		printed += fprintf(fp, "%s", perf_evsel__name(evsel));
48 		for_each_group_member(pos, evsel)
49 			printed += fprintf(fp, ",%s", perf_evsel__name(pos));
50 
51 		if (evsel->nr_members > 1)
52 			printed += fprintf(fp, "}");
53 		goto out;
54 	}
55 
56 	printed += fprintf(fp, "%s", perf_evsel__name(evsel));
57 
58 	if (details->verbose) {
59 		printed += perf_event_attr__fprintf(fp, &evsel->attr,
60 						    __print_attr__fprintf, &first);
61 	} else if (details->freq) {
62 		const char *term = "sample_freq";
63 
64 		if (!evsel->attr.freq)
65 			term = "sample_period";
66 
67 		printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
68 					 term, (u64)evsel->attr.sample_freq);
69 	}
70 
71 	if (details->trace_fields) {
72 		struct format_field *field;
73 
74 		if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
75 			printed += comma_fprintf(fp, &first, " (not a tracepoint)");
76 			goto out;
77 		}
78 
79 		field = evsel->tp_format->format.fields;
80 		if (field == NULL) {
81 			printed += comma_fprintf(fp, &first, " (no trace field)");
82 			goto out;
83 		}
84 
85 		printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
86 
87 		field = field->next;
88 		while (field) {
89 			printed += comma_fprintf(fp, &first, "%s", field->name);
90 			field = field->next;
91 		}
92 	}
93 out:
94 	fputc('\n', fp);
95 	return ++printed;
96 }
97 
98 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
99 			      unsigned int print_opts, struct callchain_cursor *cursor,
100 			      FILE *fp)
101 {
102 	int printed = 0;
103 	struct callchain_cursor_node *node;
104 	int print_ip = print_opts & EVSEL__PRINT_IP;
105 	int print_sym = print_opts & EVSEL__PRINT_SYM;
106 	int print_dso = print_opts & EVSEL__PRINT_DSO;
107 	int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
108 	int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
109 	int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
110 	int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
111 	char s = print_oneline ? ' ' : '\t';
112 
113 	if (sample->callchain) {
114 		struct addr_location node_al;
115 
116 		callchain_cursor_commit(cursor);
117 
118 		while (1) {
119 			u64 addr = 0;
120 
121 			node = callchain_cursor_current(cursor);
122 			if (!node)
123 				break;
124 
125 			if (node->sym && node->sym->ignore)
126 				goto next;
127 
128 			printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
129 
130 			if (print_ip)
131 				printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
132 
133 			if (node->map)
134 				addr = node->map->map_ip(node->map, node->ip);
135 
136 			if (print_sym) {
137 				printed += fprintf(fp, " ");
138 				node_al.addr = addr;
139 				node_al.map  = node->map;
140 
141 				if (print_symoffset) {
142 					printed += __symbol__fprintf_symname_offs(node->sym, &node_al,
143 										  print_unknown_as_addr, fp);
144 				} else {
145 					printed += __symbol__fprintf_symname(node->sym, &node_al,
146 									     print_unknown_as_addr, fp);
147 				}
148 			}
149 
150 			if (print_dso) {
151 				printed += fprintf(fp, " (");
152 				printed += map__fprintf_dsoname(node->map, fp);
153 				printed += fprintf(fp, ")");
154 			}
155 
156 			if (print_srcline)
157 				printed += map__fprintf_srcline(node->map, addr, "\n  ", fp);
158 
159 			if (!print_oneline)
160 				printed += fprintf(fp, "\n");
161 next:
162 			callchain_cursor_advance(cursor);
163 		}
164 	}
165 
166 	return printed;
167 }
168 
169 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
170 			int left_alignment, unsigned int print_opts,
171 			struct callchain_cursor *cursor, FILE *fp)
172 {
173 	int printed = 0;
174 	int print_ip = print_opts & EVSEL__PRINT_IP;
175 	int print_sym = print_opts & EVSEL__PRINT_SYM;
176 	int print_dso = print_opts & EVSEL__PRINT_DSO;
177 	int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
178 	int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
179 	int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
180 
181 	if (cursor != NULL) {
182 		printed += sample__fprintf_callchain(sample, left_alignment,
183 						     print_opts, cursor, fp);
184 	} else if (!(al->sym && al->sym->ignore)) {
185 		printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
186 
187 		if (print_ip)
188 			printed += fprintf(fp, "%16" PRIx64, sample->ip);
189 
190 		if (print_sym) {
191 			printed += fprintf(fp, " ");
192 			if (print_symoffset) {
193 				printed += __symbol__fprintf_symname_offs(al->sym, al,
194 									  print_unknown_as_addr, fp);
195 			} else {
196 				printed += __symbol__fprintf_symname(al->sym, al,
197 								     print_unknown_as_addr, fp);
198 			}
199 		}
200 
201 		if (print_dso) {
202 			printed += fprintf(fp, " (");
203 			printed += map__fprintf_dsoname(al->map, fp);
204 			printed += fprintf(fp, ")");
205 		}
206 
207 		if (print_srcline)
208 			printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
209 	}
210 
211 	return printed;
212 }
213