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perf tools: Add global list of opened dso objects

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Adding global list of opened dso objects, so we can
track them and use the list for caching dso data file
descriptors.

Acked-by: Namhyung Kim <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jean Pihet <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jiri Olsa <[email protected]>
This commit is contained in:
Jiri Olsa committed 2014-06-12 16:53:20 +02:00
1 parent 53fa8eaa09
commit eba5102d2f
2 files changed
+40 -2
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tools/perf/util/dso.c
+39 -2
View File
@@ -136,7 +136,22 @@ int dso__read_binary_type_filename(const struct dso *dso,
return ret;
}
static int open_dso(struct dso *dso, struct machine *machine)
/*
* Global list of open DSOs.
*/
static LIST_HEAD(dso__data_open);
static void dso__list_add(struct dso *dso)
{
list_add_tail(&dso->data.open_entry, &dso__data_open);
}
static void dso__list_del(struct dso *dso)
{
list_del(&dso->data.open_entry);
}
static int __open_dso(struct dso *dso, struct machine *machine)
{
int fd;
char *root_dir = (char *)"";
@@ -159,14 +174,35 @@ static int open_dso(struct dso *dso, struct machine *machine)
return fd;
}
void dso__data_close(struct dso *dso)
static int open_dso(struct dso *dso, struct machine *machine)
{
int fd = __open_dso(dso, machine);
if (fd > 0)
dso__list_add(dso);
return fd;
}
static void close_data_fd(struct dso *dso)
{
if (dso->data.fd >= 0) {
close(dso->data.fd);
dso->data.fd = -1;
dso__list_del(dso);
}
}
static void close_dso(struct dso *dso)
{
close_data_fd(dso);
}
void dso__data_close(struct dso *dso)
{
close_dso(dso);
}
int dso__data_fd(struct dso *dso, struct machine *machine)
{
enum dso_binary_type binary_type_data[] = {
@@ -499,6 +535,7 @@ struct dso *dso__new(const char *name)
dso->kernel = DSO_TYPE_USER;
dso->needs_swap = DSO_SWAP__UNSET;
INIT_LIST_HEAD(&dso->node);
INIT_LIST_HEAD(&dso->data.open_entry);
}
return dso;
tools/perf/util/dso.h
+1
View File
@@ -103,6 +103,7 @@ struct dso {
struct {
struct rb_root cache;
int fd;
struct list_head open_entry;
} data;
char name[0];