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-rw-r--r--tools/perf/builtin-record.c7
-rw-r--r--tools/perf/builtin-sched.c1
-rw-r--r--tools/perf/builtin-trace.c1
-rw-r--r--tools/perf/util/header.c42
-rw-r--r--tools/perf/util/header.h4
-rw-r--r--tools/perf/util/trace-event-info.c6
-rw-r--r--tools/perf/util/trace-event-read.c7
-rw-r--r--tools/perf/util/trace-event.h4
8 files changed, 54 insertions, 18 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 494f8c7..59af03d 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -17,7 +17,6 @@
#include "util/header.h"
#include "util/event.h"
#include "util/debug.h"
-#include "util/trace-event.h"
#include <unistd.h>
#include <sched.h>
@@ -566,17 +565,17 @@ static int __cmd_record(int argc, const char **argv)
else
header = perf_header__new();
-
if (raw_samples) {
- read_tracing_data(attrs, nr_counters);
+ perf_header__set_trace_info();
} else {
for (i = 0; i < nr_counters; i++) {
if (attrs[i].sample_type & PERF_SAMPLE_RAW) {
- read_tracing_data(attrs, nr_counters);
+ perf_header__set_trace_info();
break;
}
}
}
+
atexit(atexit_header);
if (!system_wide) {
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 4470f25..1887138 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1634,7 +1634,6 @@ static int read_events(void)
uint32_t size;
char *buf;
- trace_report();
register_idle_thread(&threads, &last_match);
input = open(input_name, O_RDONLY);
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index d573d4e..d9abb4a 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -149,7 +149,6 @@ static int __cmd_trace(void)
uint32_t size;
char *buf;
- trace_report();
register_idle_thread(&threads, &last_match);
input = open(input_name, O_RDONLY);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index e306857..212fade 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -5,6 +5,8 @@
#include "util.h"
#include "header.h"
+#include "../perf.h"
+#include "trace-event.h"
/*
* Create new perf.data header attribute:
@@ -62,6 +64,8 @@ struct perf_header *perf_header__new(void)
self->data_offset = 0;
self->data_size = 0;
+ self->trace_info_offset = 0;
+ self->trace_info_size = 0;
return self;
}
@@ -145,8 +149,16 @@ struct perf_file_header {
struct perf_file_section attrs;
struct perf_file_section data;
struct perf_file_section event_types;
+ struct perf_file_section trace_info;
};
+static int trace_info;
+
+void perf_header__set_trace_info(void)
+{
+ trace_info = 1;
+}
+
static void do_write(int fd, void *buf, size_t size)
{
while (size) {
@@ -198,6 +210,23 @@ void perf_header__write(struct perf_header *self, int fd)
if (events)
do_write(fd, events, self->event_size);
+ if (trace_info) {
+ static int trace_info_written;
+
+ /*
+ * Write it only once
+ */
+ if (!trace_info_written) {
+ self->trace_info_offset = lseek(fd, 0, SEEK_CUR);
+ read_tracing_data(fd, attrs, nr_counters);
+ self->trace_info_size = lseek(fd, 0, SEEK_CUR) -
+ self->trace_info_offset;
+ trace_info_written = 1;
+ } else {
+ lseek(fd, self->trace_info_offset +
+ self->trace_info_size, SEEK_SET);
+ }
+ }
self->data_offset = lseek(fd, 0, SEEK_CUR);
@@ -217,6 +246,10 @@ void perf_header__write(struct perf_header *self, int fd)
.offset = self->event_offset,
.size = self->event_size,
},
+ .trace_info = {
+ .offset = self->trace_info_offset,
+ .size = self->trace_info_size,
+ },
};
lseek(fd, 0, SEEK_SET);
@@ -290,6 +323,15 @@ struct perf_header *perf_header__read(int fd)
do_read(fd, events, f_header.event_types.size);
event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type);
}
+
+ self->trace_info_offset = f_header.trace_info.offset;
+ self->trace_info_size = f_header.trace_info.size;
+
+ if (self->trace_info_size) {
+ lseek(fd, self->trace_info_offset, SEEK_SET);
+ trace_report(fd);
+ }
+
self->event_offset = f_header.event_types.offset;
self->event_size = f_header.event_types.size;
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index a2916b6..30aee51 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -21,6 +21,8 @@ struct perf_header {
u64 data_size;
u64 event_offset;
u64 event_size;
+ u64 trace_info_offset;
+ u64 trace_info_size;
};
struct perf_header *perf_header__read(int fd);
@@ -40,7 +42,7 @@ void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
u64 perf_header__sample_type(struct perf_header *header);
struct perf_event_attr *
perf_header__find_attr(u64 id, struct perf_header *header);
-
+void perf_header__set_trace_info(void);
struct perf_header *perf_header__new(void);
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index af4b057..831052d 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -496,14 +496,12 @@ get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events)
return path.next;
}
-void read_tracing_data(struct perf_event_attr *pattrs, int nb_events)
+void read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
{
char buf[BUFSIZ];
struct tracepoint_path *tps;
- output_fd = open(output_file, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
- if (output_fd < 0)
- die("creating file '%s'", output_file);
+ output_fd = fd;
buf[0] = 23;
buf[1] = 8;
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 1b5c847..44292e0 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -458,9 +458,8 @@ struct record *trace_read_data(int cpu)
return data;
}
-void trace_report(void)
+void trace_report(int fd)
{
- const char *input_file = "trace.info";
char buf[BUFSIZ];
char test[] = { 23, 8, 68 };
char *version;
@@ -468,9 +467,7 @@ void trace_report(void)
int show_funcs = 0;
int show_printk = 0;
- input_fd = open(input_file, O_RDONLY);
- if (input_fd < 0)
- die("opening '%s'\n", input_file);
+ input_fd = fd;
read_or_die(buf, 3);
if (memcmp(buf, test, 3) != 0)
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 5f59a39..da77e07 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -158,7 +158,7 @@ struct record *trace_read_data(int cpu);
void parse_set_info(int nr_cpus, int long_sz);
-void trace_report(void);
+void trace_report(int fd);
void *malloc_or_die(unsigned int size);
@@ -244,6 +244,6 @@ unsigned long long
raw_field_value(struct event *event, const char *name, void *data);
void *raw_field_ptr(struct event *event, const char *name, void *data);
-void read_tracing_data(struct perf_event_attr *pattrs, int nb_events);
+void read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events);
#endif /* __PERF_TRACE_EVENTS_H */
generated by cgit v1.1 at 2024-07-06 09:43:21 +0000