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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 <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-5-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Jiri Olsa 2014-04-30 15:00:59 +02:00
parent 53fa8eaa09
commit eba5102d2f
2 changed files with 40 additions and 2 deletions
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41
tools/perf/util/dso.c
View File

@ -136,7 +136,22 @@ int dso__read_binary_type_filename(const struct dso *dso,
return ret; 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; int fd;
char *root_dir = (char *)""; char *root_dir = (char *)"";
@ -159,14 +174,35 @@ static int open_dso(struct dso *dso, struct machine *machine)
return fd; 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) { if (dso->data.fd >= 0) {
close(dso->data.fd); close(dso->data.fd);
dso->data.fd = -1; 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) int dso__data_fd(struct dso *dso, struct machine *machine)
{ {
enum dso_binary_type binary_type_data[] = { enum dso_binary_type binary_type_data[] = {
@ -499,6 +535,7 @@ struct dso *dso__new(const char *name)
dso->kernel = DSO_TYPE_USER; dso->kernel = DSO_TYPE_USER;
dso->needs_swap = DSO_SWAP__UNSET; dso->needs_swap = DSO_SWAP__UNSET;
INIT_LIST_HEAD(&dso->node); INIT_LIST_HEAD(&dso->node);
INIT_LIST_HEAD(&dso->data.open_entry);
} }
return dso; return dso;

1
tools/perf/util/dso.h
View File

@ -103,6 +103,7 @@ struct dso {
struct { struct {
struct rb_root cache; struct rb_root cache;
int fd; int fd;
struct list_head open_entry;
} data; } data;
char name[0]; char name[0];