diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/util/machine.c | 4 | ||||
-rw-r--r-- | tools/perf/util/machine.h | 3 | ||||
-rw-r--r-- | tools/perf/util/session.c | 2 | ||||
-rw-r--r-- | tools/perf/util/vdso.c | 39 | ||||
-rw-r--r-- | tools/perf/util/vdso.h | 2 |
5 files changed, 37 insertions, 13 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index a25f3ee1b5b..65269b8ac18 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -8,6 +8,7 @@ #include "sort.h" #include "strlist.h" #include "thread.h" +#include "vdso.h" #include <stdbool.h> #include <symbol/kallsyms.h> #include "unwind.h" @@ -23,6 +24,8 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) INIT_LIST_HEAD(&machine->dead_threads); machine->last_match = NULL; + machine->vdso_info = NULL; + machine->kmaps.machine = machine; machine->pid = pid; @@ -105,6 +108,7 @@ void machine__exit(struct machine *machine) map_groups__exit(&machine->kmaps); dsos__delete(&machine->user_dsos); dsos__delete(&machine->kernel_dsos); + vdso__exit(machine); zfree(&machine->root_dir); zfree(&machine->current_tid); } diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 8771d0cbe9c..b972824e629 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -20,6 +20,8 @@ union perf_event; extern const char *ref_reloc_sym_names[]; +struct vdso_info; + struct machine { struct rb_node rb_node; pid_t pid; @@ -28,6 +30,7 @@ struct machine { struct rb_root threads; struct list_head dead_threads; struct thread *last_match; + struct vdso_info *vdso_info; struct list_head user_dsos; struct list_head kernel_dsos; struct map_groups kmaps; diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index d3da1055239..fab5838c06b 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -14,7 +14,6 @@ #include "util.h" #include "cpumap.h" #include "perf_regs.h" -#include "vdso.h" static int perf_session__open(struct perf_session *session) { @@ -156,7 +155,6 @@ void perf_session__delete(struct perf_session *session) if (session->file) perf_data_file__close(session->file); free(session); - vdso__exit(); } static int process_event_synth_tracing_data_stub(struct perf_tool *tool diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c index 75245f081b6..fdaccaf6737 100644 --- a/tools/perf/util/vdso.c +++ b/tools/perf/util/vdso.c @@ -28,14 +28,17 @@ struct vdso_info { struct vdso_file vdso; }; -static struct vdso_info vdso_info_ = { - .vdso = { - .temp_file_name = VDSO__TEMP_FILE_NAME, - .dso_name = VDSO__MAP_NAME, - }, -}; - -static struct vdso_info *vdso_info = &vdso_info_; +static struct vdso_info *vdso_info__new(void) +{ + static const struct vdso_info vdso_info_init = { + .vdso = { + .temp_file_name = VDSO__TEMP_FILE_NAME, + .dso_name = VDSO__MAP_NAME, + }, + }; + + return memdup(&vdso_info_init, sizeof(vdso_info_init)); +} static int find_vdso_map(void **start, void **end) { @@ -105,16 +108,32 @@ static char *get_file(struct vdso_file *vdso_file) return vdso; } -void vdso__exit(void) +void vdso__exit(struct machine *machine) { + struct vdso_info *vdso_info = machine->vdso_info; + + if (!vdso_info) + return; + if (vdso_info->vdso.found) unlink(vdso_info->vdso.temp_file_name); + + zfree(&machine->vdso_info); } struct dso *vdso__dso_findnew(struct machine *machine) { - struct dso *dso = dsos__find(&machine->user_dsos, VDSO__MAP_NAME, true); + struct vdso_info *vdso_info; + struct dso *dso; + + if (!machine->vdso_info) + machine->vdso_info = vdso_info__new(); + + vdso_info = machine->vdso_info; + if (!vdso_info) + return NULL; + dso = dsos__find(&machine->user_dsos, VDSO__MAP_NAME, true); if (!dso) { char *file; diff --git a/tools/perf/util/vdso.h b/tools/perf/util/vdso.h index 9ab0738b675..7cf1576863a 100644 --- a/tools/perf/util/vdso.h +++ b/tools/perf/util/vdso.h @@ -15,6 +15,6 @@ static inline bool is_vdso_map(const char *filename) struct machine; struct dso *vdso__dso_findnew(struct machine *machine); -void vdso__exit(void); +void vdso__exit(struct machine *machine); #endif /* __PERF_VDSO__ */ |