return op;
}
+static struct bpf_map_op *
+bpf_map_op__clone(struct bpf_map_op *op)
+{
+ struct bpf_map_op *newop;
+
+ newop = memdup(op, sizeof(*op));
+ if (!newop) {
+ pr_debug("Failed to alloc bpf_map_op\n");
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&newop->list);
+ if (op->key_type == BPF_MAP_KEY_RANGES) {
+ size_t memsz = op->k.array.nr_ranges *
+ sizeof(op->k.array.ranges[0]);
+
+ newop->k.array.ranges = memdup(op->k.array.ranges, memsz);
+ if (!newop->k.array.ranges) {
+ pr_debug("Failed to alloc indices for map\n");
+ free(newop);
+ return NULL;
+ }
+ }
+
+ return newop;
+}
+
+static struct bpf_map_priv *
+bpf_map_priv__clone(struct bpf_map_priv *priv)
+{
+ struct bpf_map_priv *newpriv;
+ struct bpf_map_op *pos, *newop;
+
+ newpriv = zalloc(sizeof(*newpriv));
+ if (!newpriv) {
+ pr_debug("No enough memory to alloc map private\n");
+ return NULL;
+ }
+ INIT_LIST_HEAD(&newpriv->ops_list);
+
+ list_for_each_entry(pos, &priv->ops_list, list) {
+ newop = bpf_map_op__clone(pos);
+ if (!newop) {
+ bpf_map_priv__purge(newpriv);
+ return NULL;
+ }
+ list_add_tail(&newop->list, &newpriv->ops_list);
+ }
+
+ return newpriv;
+}
+
static int
bpf_map__add_op(struct bpf_map *map, struct bpf_map_op *op)
{
return 0;
}
+#define bpf__for_each_map(pos, obj, objtmp) \
+ bpf_object__for_each_safe(obj, objtmp) \
+ bpf_map__for_each(pos, obj)
+
+#define bpf__for_each_stdout_map(pos, obj, objtmp) \
+ bpf__for_each_map(pos, obj, objtmp) \
+ if (bpf_map__get_name(pos) && \
+ (strcmp("__bpf_stdout__", \
+ bpf_map__get_name(pos)) == 0))
+
+int bpf__setup_stdout(struct perf_evlist *evlist __maybe_unused)
+{
+ struct bpf_map_priv *tmpl_priv = NULL;
+ struct bpf_object *obj, *tmp;
+ struct bpf_map *map;
+ int err;
+ bool need_init = false;
+
+ bpf__for_each_stdout_map(map, obj, tmp) {
+ struct bpf_map_priv *priv;
+
+ err = bpf_map__get_private(map, (void **)&priv);
+ if (err)
+ return -BPF_LOADER_ERRNO__INTERNAL;
+
+ /*
+ * No need to check map type: type should have been
+ * verified by kernel.
+ */
+ if (!need_init && !priv)
+ need_init = !priv;
+ if (!tmpl_priv && priv)
+ tmpl_priv = priv;
+ }
+
+ if (!need_init)
+ return 0;
+
+ if (!tmpl_priv)
+ return 0;
+
+ bpf__for_each_stdout_map(map, obj, tmp) {
+ struct bpf_map_priv *priv;
+
+ err = bpf_map__get_private(map, (void **)&priv);
+ if (err)
+ return -BPF_LOADER_ERRNO__INTERNAL;
+ if (priv)
+ continue;
+
+ priv = bpf_map_priv__clone(tmpl_priv);
+ if (!priv)
+ return -ENOMEM;
+
+ err = bpf_map__set_private(map, priv, bpf_map_priv__clear);
+ if (err) {
+ bpf_map_priv__clear(map, priv);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
#define ERRNO_OFFSET(e) ((e) - __BPF_LOADER_ERRNO__START)
#define ERRCODE_OFFSET(c) ERRNO_OFFSET(BPF_LOADER_ERRNO__##c)
#define NR_ERRNO (__BPF_LOADER_ERRNO__END - __BPF_LOADER_ERRNO__START)
bpf__strerror_end(buf, size);
return 0;
}
+
+int bpf__strerror_setup_stdout(struct perf_evlist *evlist __maybe_unused,
+ int err, char *buf, size_t size)
+{
+ bpf__strerror_head(err, buf, size);
+ bpf__strerror_end(buf, size);
+ return 0;
+}
size_t size);
int bpf__apply_obj_config(void);
int bpf__strerror_apply_obj_config(int err, char *buf, size_t size);
+
+int bpf__setup_stdout(struct perf_evlist *evlist);
+int bpf__strerror_setup_stdout(struct perf_evlist *evlist, int err,
+ char *buf, size_t size);
+
#else
static inline struct bpf_object *
bpf__prepare_load(const char *filename __maybe_unused,
}
static inline int
+bpf__setup_stdout(struct perf_evlist *evlist __maybe_unused)
+{
+ return 0;
+}
+
+static inline int
__bpf_strerror(char *buf, size_t size)
{
if (!size)
{
return __bpf_strerror(buf, size);
}
+
+static inline int
+bpf__strerror_setup_stdout(struct perf_evlist *evlist __maybe_unused,
+ int err __maybe_unused, char *buf,
+ size_t size)
+{
+ return __bpf_strerror(buf, size);
+}
#endif
#endif