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-rw-r--r--tools/bpf/bpftool/btf.c25
-rw-r--r--tools/bpf/bpftool/common.c10
-rw-r--r--tools/bpf/bpftool/gen.c19
-rw-r--r--tools/bpf/bpftool/link.c10
-rw-r--r--tools/bpf/bpftool/main.h14
-rw-r--r--tools/bpf/bpftool/map.c10
-rw-r--r--tools/bpf/bpftool/pids.c16
-rw-r--r--tools/bpf/bpftool/prog.c10
-rw-r--r--tools/lib/bpf/btf.c41
-rw-r--r--tools/lib/bpf/btf_dump.c15
-rw-r--r--tools/lib/bpf/hashmap.c18
-rw-r--r--tools/lib/bpf/hashmap.h90
-rw-r--r--tools/lib/bpf/libbpf.c18
-rw-r--r--tools/lib/bpf/strset.c18
-rw-r--r--tools/lib/bpf/usdt.c28
-rw-r--r--tools/perf/tests/expr.c28
-rw-r--r--tools/perf/tests/pmu-events.c6
-rw-r--r--tools/perf/util/bpf-loader.c11
-rw-r--r--tools/perf/util/evsel.c2
-rw-r--r--tools/perf/util/expr.c36
-rw-r--r--tools/perf/util/hashmap.c18
-rw-r--r--tools/perf/util/hashmap.h90
-rw-r--r--tools/perf/util/metricgroup.c10
-rw-r--r--tools/perf/util/stat-shadow.c2
-rw-r--r--tools/perf/util/stat.c9
-rw-r--r--tools/testing/selftests/bpf/prog_tests/hashmap.c190
-rw-r--r--tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c6
27 files changed, 410 insertions, 340 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 68a70ac03c80..b87e4a7fd689 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -815,8 +815,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
if (!btf_id)
continue;
- err = hashmap__append(tab, u32_as_hash_field(btf_id),
- u32_as_hash_field(id));
+ err = hashmap__append(tab, btf_id, id);
if (err) {
p_err("failed to append entry to hashmap for BTF ID %u, object ID %u: %s",
btf_id, id, strerror(-err));
@@ -875,17 +874,13 @@ show_btf_plain(struct bpf_btf_info *info, int fd,
printf("size %uB", info->btf_size);
n = 0;
- hashmap__for_each_key_entry(btf_prog_table, entry,
- u32_as_hash_field(info->id)) {
- printf("%s%u", n++ == 0 ? " prog_ids " : ",",
- hash_field_as_u32(entry->value));
+ hashmap__for_each_key_entry(btf_prog_table, entry, info->id) {
+ printf("%s%lu", n++ == 0 ? " prog_ids " : ",", entry->value);
}
n = 0;
- hashmap__for_each_key_entry(btf_map_table, entry,
- u32_as_hash_field(info->id)) {
- printf("%s%u", n++ == 0 ? " map_ids " : ",",
- hash_field_as_u32(entry->value));
+ hashmap__for_each_key_entry(btf_map_table, entry, info->id) {
+ printf("%s%lu", n++ == 0 ? " map_ids " : ",", entry->value);
}
emit_obj_refs_plain(refs_table, info->id, "\n\tpids ");
@@ -907,17 +902,15 @@ show_btf_json(struct bpf_btf_info *info, int fd,
jsonw_name(json_wtr, "prog_ids");
jsonw_start_array(json_wtr); /* prog_ids */
- hashmap__for_each_key_entry(btf_prog_table, entry,
- u32_as_hash_field(info->id)) {
- jsonw_uint(json_wtr, hash_field_as_u32(entry->value));
+ hashmap__for_each_key_entry(btf_prog_table, entry, info->id) {
+ jsonw_uint(json_wtr, entry->value);
}
jsonw_end_array(json_wtr); /* prog_ids */
jsonw_name(json_wtr, "map_ids");
jsonw_start_array(json_wtr); /* map_ids */
- hashmap__for_each_key_entry(btf_map_table, entry,
- u32_as_hash_field(info->id)) {
- jsonw_uint(json_wtr, hash_field_as_u32(entry->value));
+ hashmap__for_each_key_entry(btf_map_table, entry, info->id) {
+ jsonw_uint(json_wtr, entry->value);
}
jsonw_end_array(json_wtr); /* map_ids */
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index e4d33bc8bbbf..d9f7b1299b03 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -494,7 +494,7 @@ static int do_build_table_cb(const char *fpath, const struct stat *sb,
goto out_close;
}
- err = hashmap__append(build_fn_table, u32_as_hash_field(pinned_info.id), path);
+ err = hashmap__append(build_fn_table, pinned_info.id, path);
if (err) {
p_err("failed to append entry to hashmap for ID %u, path '%s': %s",
pinned_info.id, path, strerror(errno));
@@ -545,7 +545,7 @@ void delete_pinned_obj_table(struct hashmap *map)
return;
hashmap__for_each_entry(map, entry, bkt)
- free(entry->value);
+ free(entry->pvalue);
hashmap__free(map);
}
@@ -1041,12 +1041,12 @@ int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len)
return fd;
}
-size_t hash_fn_for_key_as_id(const void *key, void *ctx)
+size_t hash_fn_for_key_as_id(long key, void *ctx)
{
- return (size_t)key;
+ return key;
}
-bool equal_fn_for_key_as_id(const void *k1, const void *k2, void *ctx)
+bool equal_fn_for_key_as_id(long k1, long k2, void *ctx)
{
return k1 == k2;
}
diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c
index cf8b4e525c88..01bb8d8f5568 100644
--- a/tools/bpf/bpftool/gen.c
+++ b/tools/bpf/bpftool/gen.c
@@ -1660,21 +1660,16 @@ struct btfgen_info {
struct btf *marked_btf; /* btf structure used to mark used types */
};
-static size_t btfgen_hash_fn(const void *key, void *ctx)
+static size_t btfgen_hash_fn(long key, void *ctx)
{
- return (size_t)key;
+ return key;
}
-static bool btfgen_equal_fn(const void *k1, const void *k2, void *ctx)
+static bool btfgen_equal_fn(long k1, long k2, void *ctx)
{
return k1 == k2;
}
-static void *u32_as_hash_key(__u32 x)
-{
- return (void *)(uintptr_t)x;
-}
-
static void btfgen_free_info(struct btfgen_info *info)
{
if (!info)
@@ -2086,18 +2081,18 @@ static int btfgen_record_obj(struct btfgen_info *info, const char *obj_path)
struct bpf_core_spec specs_scratch[3] = {};
struct bpf_core_relo_res targ_res = {};
struct bpf_core_cand_list *cands = NULL;
- const void *type_key = u32_as_hash_key(relo->type_id);
const char *sec_name = btf__name_by_offset(btf, sec->sec_name_off);
if (relo->kind != BPF_CORE_TYPE_ID_LOCAL &&
- !hashmap__find(cand_cache, type_key, (void **)&cands)) {
+ !hashmap__find(cand_cache, relo->type_id, &cands)) {
cands = btfgen_find_cands(btf, info->src_btf, relo->type_id);
if (!cands) {
err = -errno;
goto out;
}
- err = hashmap__set(cand_cache, type_key, cands, NULL, NULL);
+ err = hashmap__set(cand_cache, relo->type_id, cands,
+ NULL, NULL);
if (err)
goto out;
}
@@ -2120,7 +2115,7 @@ out:
if (!IS_ERR_OR_NULL(cand_cache)) {
hashmap__for_each_entry(cand_cache, entry, i) {
- bpf_core_free_cands(entry->value);
+ bpf_core_free_cands(entry->pvalue);
}
hashmap__free(cand_cache);
}
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 2863639706dd..6f4cfe01cad4 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -204,9 +204,8 @@ static int show_link_close_json(int fd, struct bpf_link_info *info)
jsonw_name(json_wtr, "pinned");
jsonw_start_array(json_wtr);
- hashmap__for_each_key_entry(link_table, entry,
- u32_as_hash_field(info->id))
- jsonw_string(json_wtr, entry->value);
+ hashmap__for_each_key_entry(link_table, entry, info->id)
+ jsonw_string(json_wtr, entry->pvalue);
jsonw_end_array(json_wtr);
}
@@ -309,9 +308,8 @@ static int show_link_close_plain(int fd, struct bpf_link_info *info)
if (!hashmap__empty(link_table)) {
struct hashmap_entry *entry;
- hashmap__for_each_key_entry(link_table, entry,
- u32_as_hash_field(info->id))
- printf("\n\tpinned %s", (char *)entry->value);
+ hashmap__for_each_key_entry(link_table, entry, info->id)
+ printf("\n\tpinned %s", (char *)entry->pvalue);
}
emit_obj_refs_plain(refs_table, info->id, "\n\tpids ");
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index 467d8472df0c..d4e8a1aef787 100644
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -240,8 +240,8 @@ int do_filter_dump(struct tcmsg *ifinfo, struct nlattr **tb, const char *kind,
int print_all_levels(__maybe_unused enum libbpf_print_level level,
const char *format, va_list args);
-size_t hash_fn_for_key_as_id(const void *key, void *ctx);
-bool equal_fn_for_key_as_id(const void *k1, const void *k2, void *ctx);
+size_t hash_fn_for_key_as_id(long key, void *ctx);
+bool equal_fn_for_key_as_id(long k1, long k2, void *ctx);
/* bpf_attach_type_input_str - convert the provided attach type value into a
* textual representation that we accept for input purposes.
@@ -257,16 +257,6 @@ bool equal_fn_for_key_as_id(const void *k1, const void *k2, void *ctx);
*/
const char *bpf_attach_type_input_str(enum bpf_attach_type t);
-static inline void *u32_as_hash_field(__u32 x)
-{
- return (void *)(uintptr_t)x;
-}
-
-static inline __u32 hash_field_as_u32(const void *x)
-{
- return (__u32)(uintptr_t)x;
-}
-
static inline bool hashmap__empty(struct hashmap *map)
{
return map ? hashmap__size(map) == 0 : true;
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index f941ac5c7b73..d884070a2314 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -518,9 +518,8 @@ static int show_map_close_json(int fd, struct bpf_map_info *info)
jsonw_name(json_wtr, "pinned");
jsonw_start_array(json_wtr);
- hashmap__for_each_key_entry(map_table, entry,
- u32_as_hash_field(info->id))
- jsonw_string(json_wtr, entry->value);
+ hashmap__for_each_key_entry(map_table, entry, info->id)
+ jsonw_string(json_wtr, entry->pvalue);
jsonw_end_array(json_wtr);
}
@@ -595,9 +594,8 @@ static int show_map_close_plain(int fd, struct bpf_map_info *info)
if (!hashmap__empty(map_table)) {
struct hashmap_entry *entry;
- hashmap__for_each_key_entry(map_table, entry,
- u32_as_hash_field(info->id))
- printf("\n\tpinned %s", (char *)entry->value);
+ hashmap__for_each_key_entry(map_table, entry, info->id)
+ printf("\n\tpinned %s", (char *)entry->pvalue);
}
if (frozen_str) {
diff --git a/tools/bpf/bpftool/pids.c b/tools/bpf/bpftool/pids.c
index bb6c969a114a..00c77edb6331 100644
--- a/tools/bpf/bpftool/pids.c
+++ b/tools/bpf/bpftool/pids.c
@@ -36,8 +36,8 @@ static void add_ref(struct hashmap *map, struct pid_iter_entry *e)
int err, i;
void *tmp;
- hashmap__for_each_key_entry(map, entry, u32_as_hash_field(e->id)) {
- refs = entry->value;
+ hashmap__for_each_key_entry(map, entry, e->id) {
+ refs = entry->pvalue;
for (i = 0; i < refs->ref_cnt; i++) {
if (refs->refs[i].pid == e->pid)
@@ -81,7 +81,7 @@ static void add_ref(struct hashmap *map, struct pid_iter_entry *e)
refs->has_bpf_cookie = e->has_bpf_cookie;
refs->bpf_cookie = e->bpf_cookie;
- err = hashmap__append(map, u32_as_hash_field(e->id), refs);
+ err = hashmap__append(map, e->id, refs);
if (err)
p_err("failed to append entry to hashmap for ID %u: %s",
e->id, strerror(errno));
@@ -183,7 +183,7 @@ void delete_obj_refs_table(struct hashmap *map)
return;
hashmap__for_each_entry(map, entry, bkt) {
- struct obj_refs *refs = entry->value;
+ struct obj_refs *refs = entry->pvalue;
free(refs->refs);
free(refs);
@@ -200,8 +200,8 @@ void emit_obj_refs_json(struct hashmap *map, __u32 id,
if (hashmap__empty(map))
return;
- hashmap__for_each_key_entry(map, entry, u32_as_hash_field(id)) {
- struct obj_refs *refs = entry->value;
+ hashmap__for_each_key_entry(map, entry, id) {
+ struct obj_refs *refs = entry->pvalue;
int i;
if (refs->ref_cnt == 0)
@@ -232,8 +232,8 @@ void emit_obj_refs_plain(struct hashmap *map, __u32 id, const char *prefix)
if (hashmap__empty(map))
return;
- hashmap__for_each_key_entry(map, entry, u32_as_hash_field(id)) {
- struct obj_refs *refs = entry->value;
+ hashmap__for_each_key_entry(map, entry, id) {
+ struct obj_refs *refs = entry->pvalue;
int i;
if (refs->ref_cnt == 0)
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index a858b907da16..9d32ffb9f22e 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -486,9 +486,8 @@ static void print_prog_json(struct bpf_prog_info *info, int fd)
jsonw_name(json_wtr, "pinned");
jsonw_start_array(json_wtr);
- hashmap__for_each_key_entry(prog_table, entry,
- u32_as_hash_field(info->id))
- jsonw_string(json_wtr, entry->value);
+ hashmap__for_each_key_entry(prog_table, entry, info->id)
+ jsonw_string(json_wtr, entry->pvalue);
jsonw_end_array(json_wtr);
}
@@ -561,9 +560,8 @@ static void print_prog_plain(struct bpf_prog_info *info, int fd)
if (!hashmap__empty(prog_table)) {
struct hashmap_entry *entry;
- hashmap__for_each_key_entry(prog_table, entry,
- u32_as_hash_field(info->id))
- printf("\n\tpinned %s", (char *)entry->value);
+ hashmap__for_each_key_entry(prog_table, entry, info->id)
+ printf("\n\tpinned %s", (char *)entry->pvalue);
}
if (info->btf_id)
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 71d68bf7788c..442d4d0f98b8 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -1559,15 +1559,15 @@ struct btf_pipe {
static int btf_rewrite_str(__u32 *str_off, void *ctx)
{
struct btf_pipe *p = ctx;
- void *mapped_off;
+ long mapped_off;
int off, err;
if (!*str_off) /* nothing to do for empty strings */
return 0;
if (p->str_off_map &&
- hashmap__find(p->str_off_map, (void *)(long)*str_off, &mapped_off)) {
- *str_off = (__u32)(long)mapped_off;
+ hashmap__find(p->str_off_map, *str_off, &mapped_off)) {
+ *str_off = mapped_off;
return 0;
}
@@ -1579,7 +1579,7 @@ static int btf_rewrite_str(__u32 *str_off, void *ctx)
* performing expensive string comparisons.
*/
if (p->str_off_map) {
- err = hashmap__append(p->str_off_map, (void *)(long)*str_off, (void *)(long)off);
+ err = hashmap__append(p->str_off_map, *str_off, off);
if (err)
return err;
}
@@ -1630,8 +1630,8 @@ static int btf_rewrite_type_ids(__u32 *type_id, void *ctx)
return 0;
}
-static size_t btf_dedup_identity_hash_fn(const void *key, void *ctx);
-static bool btf_dedup_equal_fn(const void *k1, const void *k2, void *ctx);
+static size_t btf_dedup_identity_hash_fn(long key, void *ctx);
+static bool btf_dedup_equal_fn(long k1, long k2, void *ctx);
int btf__add_btf(struct btf *btf, const struct btf *src_btf)
{
@@ -3126,12 +3126,11 @@ static long hash_combine(long h, long value)
}
#define for_each_dedup_cand(d, node, hash) \
- hashmap__for_each_key_entry(d->dedup_table, node, (void *)hash)
+ hashmap__for_each_key_entry(d->dedup_table, node, hash)
static int btf_dedup_table_add(struct btf_dedup *d, long hash, __u32 type_id)
{
- return hashmap__append(d->dedup_table,
- (void *)hash, (void *)(long)type_id);
+ return hashmap__append(d->dedup_table, hash, type_id);
}
static int btf_dedup_hypot_map_add(struct btf_dedup *d,
@@ -3178,17 +3177,17 @@ static void btf_dedup_free(struct btf_dedup *d)
free(d);
}
-static size_t btf_dedup_identity_hash_fn(const void *key, void *ctx)
+static size_t btf_dedup_identity_hash_fn(long key, void *ctx)
{
- return (size_t)key;
+ return key;
}
-static size_t btf_dedup_collision_hash_fn(const void *key, void *ctx)
+static size_t btf_dedup_collision_hash_fn(long key, void *ctx)
{
return 0;
}
-static bool btf_dedup_equal_fn(const void *k1, const void *k2, void *ctx)
+static bool btf_dedup_equal_fn(long k1, long k2, void *ctx)
{
return k1 == k2;
}
@@ -3750,7 +3749,7 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id)
case BTF_KIND_INT:
h = btf_hash_int_decl_tag(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_int_tag(t, cand)) {
new_id = cand_id;
@@ -3763,7 +3762,7 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id)
case BTF_KIND_ENUM64:
h = btf_hash_enum(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_enum(t, cand)) {
new_id = cand_id;
@@ -3785,7 +3784,7 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id)
case BTF_KIND_FLOAT:
h = btf_hash_common(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_common(t, cand)) {
new_id = cand_id;
@@ -4288,7 +4287,7 @@ static int btf_dedup_struct_type(struct btf_dedup *d, __u32 type_id)
h = btf_hash_struct(t);
for_each_dedup_cand(d, hash_entry, h) {
- __u32 cand_id = (__u32)(long)hash_entry->value;
+ __u32 cand_id = hash_entry->value;
int eq;
/*
@@ -4393,7 +4392,7 @@ static int btf_dedup_ref_type(struct btf_dedup *d, __u32 type_id)
h = btf_hash_common(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_common(t, cand)) {
new_id = cand_id;
@@ -4410,7 +4409,7 @@ static int btf_dedup_ref_type(struct btf_dedup *d, __u32 type_id)
h = btf_hash_int_decl_tag(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_int_tag(t, cand)) {
new_id = cand_id;
@@ -4434,7 +4433,7 @@ static int btf_dedup_ref_type(struct btf_dedup *d, __u32 type_id)
h = btf_hash_array(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_array(t, cand)) {
new_id = cand_id;
@@ -4466,7 +4465,7 @@ static int btf_dedup_ref_type(struct btf_dedup *d, __u32 type_id)
h = btf_hash_fnproto(t);
for_each_dedup_cand(d, hash_entry, h) {
- cand_id = (__u32)(long)hash_entry->value;
+ cand_id = hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_fnproto(t, cand)) {
new_id = cand_id;
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index bf0cc0e986dd..12f7039e0ab2 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -117,14 +117,14 @@ struct btf_dump {
struct btf_dump_data *typed_dump;
};
-static size_t str_hash_fn(const void *key, void *ctx)
+static size_t str_hash_fn(long key, void *ctx)
{
- return str_hash(key);
+ return str_hash((void *)key);
}
-static bool str_equal_fn(const void *a, const void *b, void *ctx)
+static bool str_equal_fn(long a, long b, void *ctx)
{
- return strcmp(a, b) == 0;
+ return strcmp((void *)a, (void *)b) == 0;
}
static const char *btf_name_of(const struct btf_dump *d, __u32 name_off)
@@ -225,7 +225,7 @@ static void btf_dump_free_names(struct hashmap *map)
struct hashmap_entry *cur;
hashmap__for_each_entry(map, cur, bkt)
- free((void *)cur->key);
+ free((void *)cur->pkey);
hashmap__free(map);
}
@@ -1543,11 +1543,10 @@ static size_t btf_dump_name_dups(struct btf_dump *d, struct hashmap *name_map,
if (!new_name)
return 1;
- hashmap__find(name_map, orig_name, (void **)&dup_cnt);
+ hashmap__find(name_map, orig_name, &dup_cnt);
dup_cnt++;
- err = hashmap__set(name_map, new_name, (void *)dup_cnt,
- (const void **)&old_name, NULL);
+ err = hashmap__set(name_map, new_name, dup_cnt, &old_name, NULL);
if (err)
free(new_name);
diff --git a/tools/lib/bpf/hashmap.c b/tools/lib/bpf/hashmap.c
index aeb09c288716..140ee4055676 100644
--- a/tools/lib/bpf/hashmap.c
+++ b/tools/lib/bpf/hashmap.c
@@ -128,7 +128,7 @@ static int hashmap_grow(struct hashmap *map)
}
static bool hashmap_find_entry(const struct hashmap *map,
- const void *key, size_t hash,
+ const long key, size_t hash,
struct hashmap_entry ***pprev,
struct hashmap_entry **entry)
{
@@ -151,18 +151,18 @@ static bool hashmap_find_entry(const struct hashmap *map,
return false;
}
-int hashmap__insert(struct hashmap *map, const void *key, void *value,
- enum hashmap_insert_strategy strategy,
- const void **old_key, void **old_value)
+int hashmap_insert(struct hashmap *map, long key, long value,
+ enum hashmap_insert_strategy strategy,
+ long *old_key, long *old_value)
{
struct hashmap_entry *entry;
size_t h;
int err;
if (old_key)
- *old_key = NULL;
+ *old_key = 0;
if (old_value)
- *old_value = NULL;
+ *old_value = 0;
h = hash_bits(map->hash_fn(key, map->ctx), map->cap_bits);
if (strategy != HASHMAP_APPEND &&
@@ -203,7 +203,7 @@ int hashmap__insert(struct hashmap *map, const void *key, void *value,
return 0;
}
-bool hashmap__find(const struct hashmap *map, const void *key, void **value)
+bool hashmap_find(const struct hashmap *map, long key, long *value)
{
struct hashmap_entry *entry;
size_t h;
@@ -217,8 +217,8 @@ bool hashmap__find(const struct hashmap *map, const void *key, void **value)
return true;
}
-bool hashmap__delete(struct hashmap *map, const void *key,
- const void **old_key, void **old_value)
+bool hashmap_delete(struct hashmap *map, long key,
+ long *old_key, long *old_value)
{
struct hashmap_entry **pprev, *entry;
size_t h;
diff --git a/tools/lib/bpf/hashmap.h b/tools/lib/bpf/hashmap.h
index 10a4c4cd13cf..3fe647477bad 100644
--- a/tools/lib/bpf/hashmap.h
+++ b/tools/lib/bpf/hashmap.h
@@ -40,12 +40,32 @@ static inline size_t str_hash(const char *s)
return h;
}
-typedef size_t (*hashmap_hash_fn)(const void *key, void *ctx);
-typedef bool (*hashmap_equal_fn)(const void *key1, const void *key2, void *ctx);
+typedef size_t (*hashmap_hash_fn)(long key, void *ctx);
+typedef bool (*hashmap_equal_fn)(long key1, long key2, void *ctx);
+/*
+ * Hashmap interface is polymorphic, keys and values could be either
+ * long-sized integers or pointers, this is achieved as follows:
+ * - interface functions that operate on keys and values are hidden
+ * behind auxiliary macros, e.g. hashmap_insert <-> hashmap__insert;
+ * - these auxiliary macros cast the key and value parameters as
+ * long or long *, so the user does not have to specify the casts explicitly;
+ * - for pointer parameters (e.g. old_key) the size of the pointed
+ * type is verified by hashmap_cast_ptr using _Static_assert;
+ * - when iterating using hashmap__for_each_* forms
+ * hasmap_entry->key should be used for integer keys and
+ * hasmap_entry->pkey should be used for pointer keys,
+ * same goes for values.
+ */
struct hashmap_entry {
- const void *key;
- void *value;
+ union {
+ long key;
+ const void *pkey;
+ };
+ union {
+ long value;
+ void *pvalue;
+ };
struct hashmap_entry *next;
};
@@ -102,6 +122,12 @@ enum hashmap_insert_strategy {
HASHMAP_APPEND,
};
+#define hashmap_cast_ptr(p) ({ \
+ _Static_assert((p) == NULL || sizeof(*(p)) == sizeof(long), \
+ #p " pointee should be a long-sized integer or a pointer"); \
+ (long *)(p); \
+})
+
/*
* hashmap__insert() adds key/value entry w/ various semantics, depending on
* provided strategy value. If a given key/value pair replaced already
@@ -109,42 +135,38 @@ enum hashmap_insert_strategy {
* through old_key and old_value to allow calling code do proper memory
* management.
*/
-int hashmap__insert(struct hashmap *map, const void *key, void *value,
- enum hashmap_insert_strategy strategy,
- const void **old_key, void **old_value);
+int hashmap_insert(struct hashmap *map, long key, long value,
+ enum hashmap_insert_strategy strategy,
+ long *old_key, long *old_value);
-static inline int hashmap__add(struct hashmap *map,
- const void *key, void *value)
-{
- return hashmap__insert(map, key, value, HASHMAP_ADD, NULL, NULL);
-}
+#define hashmap__insert(map, key, value, strategy, old_key, old_value) \
+ hashmap_insert((map), (long)(key), (long)(value), (strategy), \
+ hashmap_cast_ptr(old_key), \
+ hashmap_cast_ptr(old_value))
-static inline int hashmap__set(struct hashmap *map,
- const void *key, void *value,
- const void **old_key, void **old_value)
-{
- return hashmap__insert(map, key, value, HASHMAP_SET,
- old_key, old_value);
-}
+#define hashmap__add(map, key, value) \
+ hashmap__insert((map), (key), (value), HASHMAP_ADD, NULL, NULL)
-static inline int hashmap__update(struct hashmap *map,
- const void *key, void *value,
- const void **old_key, void **old_value)
-{
- return hashmap__insert(map, key, value, HASHMAP_UPDATE,
- old_key, old_value);
-}
+#define hashmap__set(map, key, value, old_key, old_value) \
+ hashmap__insert((map), (key), (value), HASHMAP_SET, (old_key), (old_value))
-static inline int hashmap__append(struct hashmap *map,
- const void *key, void *value)
-{
- return hashmap__insert(map, key, value, HASHMAP_APPEND, NULL, NULL);
-}
+#define hashmap__update(map, key, value, old_key, old_value) \
+ hashmap__insert((map), (key), (value), HASHMAP_UPDATE, (old_key), (old_value))
+
+#define hashmap__append(map, key, value) \
+ hashmap__insert((map), (key), (value), HASHMAP_APPEND, NULL, NULL)
+
+bool hashmap_delete(struct hashmap *map, long key, long *old_key, long *old_value);
+
+#define hashmap__delete(map, key, old_key, old_value) \
+ hashmap_delete((map), (long)(key), \
+ hashmap_cast_ptr(old_key), \
+ hashmap_cast_ptr(old_value))
-bool hashmap__delete(struct hashmap *map, const void *key,
- const void **old_key, void **old_value);
+bool hashmap_find(const struct hashmap *map, long key, long *value);
-bool hashmap__find(const struct hashmap *map, const void *key, void **value);
+#define hashmap__find(map, key, value) \
+ hashmap_find((map), (long)(key), hashmap_cast_ptr(value))
/*
* hashmap__for_each_entry - iterate over all entries in hashmap
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 5d7819edf074..1d263885d635 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5601,21 +5601,16 @@ int bpf_core_types_match(const struct btf *local_btf, __u32 local_id,
return __bpf_core_types_match(local_btf, local_id, targ_btf, targ_id, false, 32);
}
-static size_t bpf_core_hash_fn(const void *key, void *ctx)
+static size_t bpf_core_hash_fn(const long key, void *ctx)
{
- return (size_t)key;
+ return key;
}
-static bool bpf_core_equal_fn(const void *k1, const void *k2, void *ctx)
+static bool bpf_core_equal_fn(const long k1, const long k2, void *ctx)
{
return k1 == k2;
}
-static void *u32_as_hash_key(__u32 x)
-{
- return (void *)(uintptr_t)x;
-}
-
static int record_relo_core(struct bpf_program *prog,
const struct bpf_core_relo *core_relo, int insn_idx)
{
@@ -5658,7 +5653,6 @@ static int bpf_core_resolve_relo(struct bpf_program *prog,
struct bpf_core_relo_res *targ_res)
{
struct bpf_core_spec specs_scratch[3] = {};
- const void *type_key = u32_as_hash_key(relo->type_id);
struct bpf_core_cand_list *cands = NULL;
const char *prog_name = prog->name;
const struct btf_type *local_type;
@@ -5675,7 +5669,7 @@ static int bpf_core_resolve_relo(struct bpf_program *prog,
return -EINVAL;
if (relo->kind != BPF_CORE_TYPE_ID_LOCAL &&
- !hashmap__find(cand_cache, type_key, (void **)&cands)) {
+ !hashmap__find(cand_cache, local_id, &cands)) {
cands = bpf_core_find_cands(prog->obj, local_btf, local_id);
if (IS_ERR(cands)) {
pr_warn("prog '%s': relo #%d: target candidate search failed for [%d] %s %s: %ld\n",
@@ -5683,7 +5677,7 @@ static int bpf_core_resolve_relo(struct bpf_program *prog,
local_name, PTR_ERR(cands));
return PTR_ERR(cands);
}
- err = hashmap__set(cand_cache, type_key, cands, NULL, NULL);
+ err = hashmap__set(cand_cache, local_id, cands, NULL, NULL);
if (err) {
bpf_core_free_cands(cands);
return err;
@@ -5806,7 +5800,7 @@ out:
if (!IS_ERR_OR_NULL(cand_cache)) {
hashmap__for_each_entry(cand_cache, entry, i) {
- bpf_core_free_cands(entry->value);
+ bpf_core_free_cands(entry->pvalue);
}
hashmap__free(cand_cache);
}
diff --git a/tools/lib/bpf/strset.c b/tools/lib/bpf/strset.c
index ea655318153f..2464bcbd04e0 100644
--- a/tools/lib/bpf/strset.c
+++ b/tools/lib/bpf/strset.c
@@ -19,19 +19,19 @@ struct strset {
struct hashmap *strs_hash;
};
-static size_t strset_hash_fn(const void *key, void *ctx)
+static size_t strset_hash_fn(long key, void *ctx)
{
const struct strset *s = ctx;
- const char *str = s->strs_data + (long)key;
+ const char *str = s->strs_data + key;
return str_hash(str);
}
-static bool strset_equal_fn(const void *key1, const void *key2, void *ctx)
+static bool strset_equal_fn(long key1, long key2, void *ctx)
{
const struct strset *s = ctx;
- const char *str1 = s->strs_data + (long)key1;
- const char *str2 = s->strs_data + (long)key2;
+ const char *str1 = s->strs_data + key1;
+ const char *str2 = s->strs_data + key2;
return strcmp(str1, str2) == 0;
}
@@ -67,7 +67,7 @@ struct strset *strset__new(size_t max_data_sz, const char *init_data, size_t ini
/* hashmap__add() returns EEXIST if string with the same
* content already is in the hash map
*/
- err = hashmap__add(hash, (void *)off, (void *)off);
+ err = hashmap__add(hash, off, off);
if (err == -EEXIST)
continue; /* duplicate */
if (err)
@@ -127,7 +127,7 @@ int strset__find_str(struct strset *set, const char *s)
new_off = set->strs_data_len;
memcpy(p, s, len);
- if (hashmap__find(set->strs_hash, (void *)new_off, (void **)&old_off))
+ if (hashmap__find(set->strs_hash, new_off, &old_off))
return old_off;
return -ENOENT;
@@ -165,8 +165,8 @@ int strset__add_str(struct strset *set, const char *s)
* contents doesn't exist already (HASHMAP_ADD strategy). If such
* string exists, we'll get its offset in old_off (that's old_key).
*/
- err = hashmap__insert(set->strs_hash, (void *)new_off, (void *)new_off,
- HASHMAP_ADD, (const void **)&old_off, NULL);
+ err = hashmap__insert(set->strs_hash, new_off, new_off,
+ HASHMAP_ADD, &old_off, NULL);
if (err == -EEXIST)
return old_off; /* duplicated string, return existing offset */
if (err)
diff --git a/tools/lib/bpf/usdt.c b/tools/lib/bpf/usdt.c
index 28fa1b2283de..b8daae265f99 100644
--- a/tools/lib/bpf/usdt.c
+++ b/tools/lib/bpf/usdt.c
@@ -873,31 +873,27 @@ static void bpf_link_usdt_dealloc(struct bpf_link *link)
free(usdt_link);
}
-static size_t specs_hash_fn(const void *key, void *ctx)
+static size_t specs_hash_fn(long key, void *ctx)
{
- const char *s = key;
-
- return str_hash(s);
+ return str_hash((char *)key);
}
-static bool specs_equal_fn(const void *key1, const void *key2, void *ctx)
+static bool specs_equal_fn(long key1, long key2, void *ctx)
{
- const char *s1 = key1;
- const char *s2 = key2;
-
- return strcmp(s1, s2) == 0;
+ return strcmp((char *)key1, (char *)key2) == 0;
}
static int allocate_spec_id(struct usdt_manager *man, struct hashmap *specs_hash,
struct bpf_link_usdt *link, struct usdt_target *target,
int *spec_id, bool *is_new)
{
- void *tmp;
+ long tmp;
+ void *new_ids;
int err;
/* check if we already allocated spec ID for this spec string */
if (hashmap__find(specs_hash, target->spec_str, &tmp)) {
- *spec_id = (long)tmp;
+ *spec_id = tmp;
*is_new = false;
return 0;
}
@@ -905,17 +901,17 @@ static int allocate_spec_id(struct usdt_manager *man, struct hashmap *specs_hash
/* otherwise it's a new ID that needs to be set up in specs map and
* returned back to usdt_manager when USDT link is detached
*/
- tmp = libbpf_reallocarray(link->spec_ids, link->spec_cnt + 1, sizeof(*link->spec_ids));
- if (!tmp)
+ new_ids = libbpf_reallocarray(link->spec_ids, link->spec_cnt + 1, sizeof(*link->spec_ids));
+ if (!new_ids)
return -ENOMEM;
- link->spec_ids = tmp;
+ link->spec_ids = new_ids;
/* get next free spec ID, giving preference to free list, if not empty */
if (man->free_spec_cnt) {
*spec_id = man->free_spec_ids[man->free_spec_cnt - 1];
/* cache spec ID for current spec string for future lookups */
- err = hashmap__add(specs_hash, target->spec_str, (void *)(long)*spec_id);
+ err = hashmap__add(specs_hash, target->spec_str, *spec_id);
if (err)
return err;
@@ -928,7 +924,7 @@ static int allocate_spec_id(struct usdt_manager *man, struct hashmap *specs_hash
*spec_id = man->next_free_spec_id;
/* cache spec ID for current spec string for future lookups */
- err = hashmap__add(specs_hash, target->spec_str, (void *)(long)*spec_id);
+ err = hashmap__add(specs_hash, target->spec_str, *spec_id);
if (err)
return err;
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
index 6512f5e22045..c598f95aebf3 100644
--- a/tools/perf/tests/expr.c
+++ b/tools/perf/tests/expr.c
@@ -130,12 +130,9 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
expr__find_ids("FOO + BAR + BAZ + BOZO", "FOO",
ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 3);
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAR",
- (void **)&val_ptr));
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ",
- (void **)&val_ptr));
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO",
- (void **)&val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAR", &val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ", &val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO", &val_ptr));
expr__ctx_clear(ctx);
ctx->sctx.runtime = 3;
@@ -143,20 +140,16 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
expr__find_ids("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1,param=3@",
- (void **)&val_ptr));
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@",
- (void **)&val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1,param=3@", &val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@", &val_ptr));
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("dash\\-event1 - dash\\-event2",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event1",
- (void **)&val_ptr));
- TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event2",
- (void **)&val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event1", &val_ptr));
+ TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event2", &val_ptr));
/* Only EVENT1 or EVENT2 need be measured depending on the value of smt_on. */
{
@@ -174,7 +167,7 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids,
smton ? "EVENT1" : "EVENT2",
- (void **)&val_ptr));
+ &val_ptr));
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
@@ -183,7 +176,7 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids,
corewide ? "EVENT1" : "EVENT2",
- (void **)&val_ptr));
+ &val_ptr));
}
/* The expression is a constant 1.0 without needing to evaluate EVENT1. */
@@ -220,8 +213,7 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
expr__find_ids("source_count(EVENT1)",
NULL, ctx) == 0);
TEST_ASSERT_VAL("source count", hashmap__size(ctx->ids) == 1);
- TEST_ASSERT_VAL("source count", hashmap__find(ctx->ids, "EVENT1",
- (void **)&val_ptr));
+ TEST_ASSERT_VAL("source count", hashmap__find(ctx->ids, "EVENT1", &val_ptr));
expr__ctx_free(ctx);
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 097e05c796ab..3c2ee55e75c7 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -986,10 +986,10 @@ static int metric_parse_fake(const char *str)
*/
i = 1;
hashmap__for_each_entry(ctx->ids, cur, bkt)
- expr__add_id_val(ctx, strdup(cur->key), i++);
+ expr__add_id_val(ctx, strdup(cur->pkey), i++);
hashmap__for_each_entry(ctx->ids, cur, bkt) {
- if (check_parse_fake(cur->key)) {
+ if (check_parse_fake(cur->pkey)) {
pr_err("check_parse_fake failed\n");
goto out;
}
@@ -1003,7 +1003,7 @@ static int metric_parse_fake(const char *str)
*/
i = 1024;
hashmap__for_each_entry(ctx->ids, cur, bkt)
- expr__add_id_val(ctx, strdup(cur->key), i--);
+ expr__add_id_val(ctx, strdup(cur->pkey), i--);
if (expr__parse(&result, ctx, str)) {
pr_err("expr__parse failed\n");
ret = -1;
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index f4adeccdbbcb..a5dbd71cb9ab 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -318,7 +318,7 @@ static void bpf_program_hash_free(void)
return;
hashmap__for_each_entry(bpf_program_hash, cur, bkt)
- clear_prog_priv(cur->key, cur->value);
+ clear_prog_priv(cur->pkey, cur->pvalue);
hashmap__free(bpf_program_hash);
bpf_program_hash = NULL;
@@ -339,13 +339,12 @@ void bpf__clear(void)
bpf_map_hash_free();
}
-static size_t ptr_hash(const void *__key, void *ctx __maybe_unused)
+static size_t ptr_hash(const long __key, void *ctx __maybe_unused)
{
- return (size_t) __key;
+ return __key;
}
-static bool ptr_equal(const void *key1, const void *key2,
- void *ctx __maybe_unused)
+static bool ptr_equal(long key1, long key2, void *ctx __maybe_unused)
{
return key1 == key2;
}
@@ -1185,7 +1184,7 @@ static void bpf_map_hash_free(void)
return;
hashmap__for_each_entry(bpf_map_hash, cur, bkt)
- bpf_map_priv__clear(cur->key, cur->value);
+ bpf_map_priv__clear(cur->pkey, cur->pvalue);
hashmap__free(bpf_map_hash);
bpf_map_hash = NULL;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 76605fde3507..9e8a1294c981 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -3123,7 +3123,7 @@ void evsel__zero_per_pkg(struct evsel *evsel)
if (evsel->per_pkg_mask) {
hashmap__for_each_entry(evsel->per_pkg_mask, cur, bkt)
- free((char *)cur->key);
+ free((void *)cur->pkey);
hashmap__clear(evsel->per_pkg_mask);
}
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index aaacf514dc09..2f05ecdcfe9a 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -46,7 +46,7 @@ struct expr_id_data {
} kind;
};
-static size_t key_hash(const void *key, void *ctx __maybe_unused)
+static size_t key_hash(long key, void *ctx __maybe_unused)
{
const char *str = (const char *)key;
size_t hash = 0;
@@ -59,8 +59,7 @@ static size_t key_hash(const void *key, void *ctx __maybe_unused)
return hash;
}
-static bool key_equal(const void *key1, const void *key2,
- void *ctx __maybe_unused)
+static bool key_equal(long key1, long key2, void *ctx __maybe_unused)
{
return !strcmp((const char *)key1, (const char *)key2);
}
@@ -84,8 +83,8 @@ void ids__free(struct hashmap *ids)
return;
hashmap__for_each_entry(ids, cur, bkt) {
- free((char *)cur->key);
- free(cur->value);
+ free((void *)cur->pkey);
+ free((void *)cur->pvalue);
}
hashmap__free(ids);
@@ -97,8 +96,7 @@ int ids__insert(struct hashmap *ids, const char *id)
char *old_key = NULL;
int ret;
- ret = hashmap__set(ids, id, data_ptr,
- (const void **)&old_key, (void **)&old_data);
+ ret = hashmap__set(ids, id, data_ptr, &old_key, &old_data);
if (ret)
free(data_ptr);
free(old_key);
@@ -127,8 +125,7 @@ struct hashmap *ids__union(struct hashmap *ids1, struct hashmap *ids2)
ids2 = tmp;
}
hashmap__for_each_entry(ids2, cur, bkt) {
- ret = hashmap__set(ids1, cur->key, cur->value,
- (const void **)&old_key, (void **)&old_data);
+ ret = hashmap__set(ids1, cur->key, cur->value, &old_key, &old_data);
free(old_key);
free(old_data);
@@ -169,8 +166,7 @@ int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id,
data_ptr->val.source_count = source_count;
data_ptr->kind = EXPR_ID_DATA__VALUE;
- ret = hashmap__set(ctx->ids, id, data_ptr,
- (const void **)&old_key, (void **)&old_data);
+ ret = hashmap__set(ctx->ids, id, data_ptr, &old_key, &old_data);
if (ret)
free(data_ptr);
free(old_key);
@@ -205,8 +201,7 @@ int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref)
data_ptr->ref.metric_expr = ref->metric_expr;
data_ptr->kind = EXPR_ID_DATA__REF;
- ret = hashmap__set(ctx->ids, name, data_ptr,
- (const void **)&old_key, (void **)&old_data);
+ ret = hashmap__set(ctx->ids, name, data_ptr, &old_key, &old_data);
if (ret)
free(data_ptr);
@@ -221,7 +216,7 @@ int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref)
int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
struct expr_id_data **data)
{
- return hashmap__find(ctx->ids, id, (void **)data) ? 0 : -1;
+ return hashmap__find(ctx->ids, id, data) ? 0 : -1;
}
bool expr__subset_of_ids(struct expr_parse_ctx *haystack,
@@ -232,7 +227,7 @@ bool expr__subset_of_ids(struct expr_parse_ctx *haystack,
struct expr_id_data *data;
hashmap__for_each_entry(needles->ids, cur, bkt) {
- if (expr__get_id(haystack, cur->key, &data))
+ if (expr__get_id(haystack, cur->pkey, &data))
return false;
}
return true;
@@ -282,8 +277,7 @@ void expr__del_id(struct expr_parse_ctx *ctx, const char *id)
struct expr_id_data *old_val = NULL;
char *old_key = NULL;
- hashmap__delete(ctx->ids, id,
- (const void **)&old_key, (void **)&old_val);
+ hashmap__delete(ctx->ids, id, &old_key, &old_val);
free(old_key);
free(old_val);
}
@@ -314,8 +308,8 @@ void expr__ctx_clear(struct expr_parse_ctx *ctx)
size_t bkt;
hashmap__for_each_entry(ctx->ids, cur, bkt) {
- free((char *)cur->key);
- free(cur->value);
+ free((void *)cur->pkey);
+ free(cur->pvalue);
}
hashmap__clear(ctx->ids);
}
@@ -330,8 +324,8 @@ void expr__ctx_free(struct expr_parse_ctx *ctx)
free(ctx->sctx.user_requested_cpu_list);
hashmap__for_each_entry(ctx->ids, cur, bkt) {
- free((char *)cur->key);
- free(cur->value);
+ free((void *)cur->pkey);
+ free(cur->pvalue);
}
hashmap__free(ctx->ids);
free(ctx);
diff --git a/tools/perf/util/hashmap.c b/tools/perf/util/hashmap.c
index aeb09c288716..140ee4055676 100644
--- a/tools/perf/util/hashmap.c
+++ b/tools/perf/util/hashmap.c
@@ -128,7 +128,7 @@ static int hashmap_grow(struct hashmap *map)
}
static bool hashmap_find_entry(const struct hashmap *map,
- const void *key, size_t hash,
+ const long key, size_t hash,
struct hashmap_entry ***pprev,
struct hashmap_entry **entry)
{
@@ -151,18 +151,18 @@ static bool hashmap_find_entry(const struct hashmap *map,
return false;
}
-int hashmap__insert(struct hashmap *map, const void *key, void *value,
- enum hashmap_insert_strategy strategy,
- const void **old_key, void **old_value)
+int hashmap_insert(struct hashmap *map, long key, long value,
+ enum hashmap_insert_strategy strategy,
+ long *old_key, long *old_value)
{
struct hashmap_entry *entry;
size_t h;
int err;
if (old_key)
- *old_key = NULL;
+ *old_key = 0;
if (old_value)
- *old_value = NULL;
+ *old_value = 0;
h = hash_bits(map->hash_fn(key, map->ctx), map->cap_bits);
if (strategy != HASHMAP_APPEND &&
@@ -203,7 +203,7 @@ int hashmap__insert(struct hashmap *map, const void *key, void *value,
return 0;
}
-bool hashmap__find(const struct hashmap *map, const void *key, void **value)
+bool hashmap_find(const struct hashmap *map, long key, long *value)
{
struct hashmap_entry *entry;
size_t h;
@@ -217,8 +217,8 @@ bool hashmap__find(const struct hashmap *map, const void *key, void **value)
return true;
}
-bool hashmap__delete(struct hashmap *map, const void *key,
- const void **old_key, void **old_value)
+bool hashmap_delete(struct hashmap *map, long key,
+ long *old_key, long *old_value)
{
struct hashmap_entry **pprev, *entry;
size_t h;
diff --git a/tools/perf/util/hashmap.h b/tools/perf/util/hashmap.h
index 10a4c4cd13cf..3fe647477bad 100644
--- a/tools/perf/util/hashmap.h
+++ b/tools/perf/util/hashmap.h
@@ -40,12 +40,32 @@ static inline size_t str_hash(const char *s)
return h;
}
-typedef size_t (*hashmap_hash_fn)(const void *key, void *ctx);
-typedef bool (*hashmap_equal_fn)(const void *key1, const void *key2, void *ctx);
+typedef size_t (*hashmap_hash_fn)(long key, void *ctx);
+typedef bool (*hashmap_equal_fn)(long key1, long key2, void *ctx);
+/*
+ * Hashmap interface is polymorphic, keys and values could be either
+ * long-sized integers or pointers, this is achieved as follows:
+ * - interface functions that operate on keys and values are hidden
+ * behind auxiliary macros, e.g. hashmap_insert <-> hashmap__insert;
+ * - these auxiliary macros cast the key and value parameters as
+ * long or long *, so the user does not have to specify the casts explicitly;
+ * - for pointer parameters (e.g. old_key) the size of the pointed
+ * type is verified by hashmap_cast_ptr using _Static_assert;
+ * - when iterating using hashmap__for_each_* forms
+ * hasmap_entry->key should be used for integer keys and
+ * hasmap_entry->pkey should be used for pointer keys,
+ * same goes for values.
+ */
struct hashmap_entry {
- const void *key;
- void *value;
+ union {
+ long key;
+ const void *pkey;
+ };
+ union {
+ long value;
+ void *pvalue;
+ };
struct hashmap_entry *next;
};
@@ -102,6 +122,12 @@ enum hashmap_insert_strategy {
HASHMAP_APPEND,
};
+#define hashmap_cast_ptr(p) ({ \
+ _Static_assert((p) == NULL || sizeof(*(p)) == sizeof(long), \
+ #p " pointee should be a long-sized integer or a pointer"); \
+ (long *)(p); \
+})
+
/*
* hashmap__insert() adds key/value entry w/ various semantics, depending on
* provided strategy value. If a given key/value pair replaced already
@@ -109,42 +135,38 @@ enum hashmap_insert_strategy {
* through old_key and old_value to allow calling code do proper memory
* management.
*/
-int hashmap__insert(struct hashmap *map, const void *key, void *value,
- enum hashmap_insert_strategy strategy,
- const void **old_key, void **old_value);
+int hashmap_insert(struct hashmap *map, long key, long value,
+ enum hashmap_insert_strategy strategy,
+ long *old_key, long *old_value);
-static inline int hashmap__add(struct hashmap *map,
- const void *key, void *value)
-{
- return hashmap__insert(map, key, value, HASHMAP_ADD, NULL, NULL);
-}
+#define hashmap__insert(map, key, value, strategy, old_key, old_value) \
+ hashmap_insert((map), (long)(key), (long)(value), (strategy), \
+ hashmap_cast_ptr(old_key), \
+ hashmap_cast_ptr(old_value))
-static inline int hashmap__set(struct hashmap *map,
- const void *key, void *value,
- const void **old_key, void **old_value)
-{
- return hashmap__insert(map, key, value, HASHMAP_SET,
- old_key, old_value);
-}
+#define hashmap__add(map, key, value) \
+ hashmap__insert((map), (key), (value), HASHMAP_ADD, NULL, NULL)
-static inline int hashmap__update(struct hashmap *map,
- const void *key, void *value,
- const void **old_key, void **old_value)
-{
- return hashmap__insert(map, key, value, HASHMAP_UPDATE,
- old_key, old_value);
-}
+#define hashmap__set(map, key, value, old_key, old_value) \
+ hashmap__insert((map), (key), (value), HASHMAP_SET, (old_key), (old_value))
-static inline int hashmap__append(struct hashmap *map,
- const void *key, void *value)
-{
- return hashmap__insert(map, key, value, HASHMAP_APPEND, NULL, NULL);
-}
+#define hashmap__update(map, key, value, old_key, old_value) \
+ hashmap__insert((map), (key), (value), HASHMAP_UPDATE, (old_key), (old_value))
+
+#define hashmap__append(map, key, value) \
+ hashmap__insert((map), (key), (value), HASHMAP_APPEND, NULL, NULL)
+
+bool hashmap_delete(struct hashmap *map, long key, long *old_key, long *old_value);
+
+#define hashmap__delete(map, key, old_key, old_value) \
+ hashmap_delete((map), (long)(key), \
+ hashmap_cast_ptr(old_key), \
+ hashmap_cast_ptr(old_value))
-bool hashmap__delete(struct hashmap *map, const void *key,
- const void **old_key, void **old_value);
+bool hashmap_find(const struct hashmap *map, long key, long *value);
-bool hashmap__find(const struct hashmap *map, const void *key, void **value);
+#define hashmap__find(map, key, value) \
+ hashmap_find((map), (long)(key), hashmap_cast_ptr(value))
/*
* hashmap__for_each_entry - iterate over all entries in hashmap
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 4c98ac29ee13..6b3505b1b6ac 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -288,7 +288,7 @@ static int setup_metric_events(struct hashmap *ids,
* combined or shared groups, this metric may not care
* about this event.
*/
- if (hashmap__find(ids, metric_id, (void **)&val_ptr)) {
+ if (hashmap__find(ids, metric_id, &val_ptr)) {
metric_events[matched_events++] = ev;
if (matched_events >= ids_size)
@@ -764,7 +764,7 @@ static int metricgroup__build_event_string(struct strbuf *events,
#define RETURN_IF_NON_ZERO(x) do { if (x) return x; } while (0)
hashmap__for_each_entry(ctx->ids, cur, bkt) {
- const char *sep, *rsep, *id = cur->key;
+ const char *sep, *rsep, *id = cur->pkey;
enum perf_tool_event ev;
pr_debug("found event %s\n", id);
@@ -945,14 +945,14 @@ static int resolve_metric(struct list_head *metric_list,
hashmap__for_each_entry(root_metric->pctx->ids, cur, bkt) {
struct pmu_event pe;
- if (metricgroup__find_metric(cur->key, table, &pe)) {
+ if (metricgroup__find_metric(cur->pkey, table, &pe)) {
pending = realloc(pending,
(pending_cnt + 1) * sizeof(struct to_resolve));
if (!pending)
return -ENOMEM;
memcpy(&pending[pending_cnt].pe, &pe, sizeof(pe));
- pending[pending_cnt].key = cur->key;
+ pending[pending_cnt].key = cur->pkey;
pending_cnt++;
}
}
@@ -1433,7 +1433,7 @@ static int build_combined_expr_ctx(const struct list_head *metric_list,
list_for_each_entry(m, metric_list, nd) {
if (m->has_constraint && !m->modifier) {
hashmap__for_each_entry(m->pctx->ids, cur, bkt) {
- dup = strdup(cur->key);
+ dup = strdup(cur->pkey);
if (!dup) {
ret = -ENOMEM;
goto err_out;
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 07b29fe272c7..0bf71b02aa06 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -398,7 +398,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list)
i = 0;
hashmap__for_each_entry(ctx->ids, cur, bkt) {
- const char *metric_name = (const char *)cur->key;
+ const char *metric_name = cur->pkey;
found = false;
if (leader) {
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 8ec8bb4a9912..c0656f85bfa5 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -278,15 +278,14 @@ void evlist__save_aggr_prev_raw_counts(struct evlist *evlist)
}
}
-static size_t pkg_id_hash(const void *__key, void *ctx __maybe_unused)
+static size_t pkg_id_hash(long __key, void *ctx __maybe_unused)
{
uint64_t *key = (uint64_t *) __key;
return *key & 0xffffffff;
}
-static bool pkg_id_equal(const void *__key1, const void *__key2,
- void *ctx __maybe_unused)
+static bool pkg_id_equal(long __key1, long __key2, void *ctx __maybe_unused)
{
uint64_t *key1 = (uint64_t *) __key1;
uint64_t *key2 = (uint64_t *) __key2;
@@ -347,11 +346,11 @@ static int check_per_pkg(struct evsel *counter, struct perf_counts_values *vals,
return -ENOMEM;
*key = (uint64_t)d << 32 | s;
- if (hashmap__find(mask, (void *)key, NULL)) {
+ if (hashmap__find(mask, key, NULL)) {
*skip = true;
free(key);
} else
- ret = hashmap__add(mask, (void *)key, (void *)1);
+ ret = hashmap__add(mask, key, 1);
return ret;
}
diff --git a/tools/testing/selftests/bpf/prog_tests/hashmap.c b/tools/testing/selftests/bpf/prog_tests/hashmap.c
index 4747ab18f97f..d358a223fd2d 100644
--- a/tools/testing/selftests/bpf/prog_tests/hashmap.c
+++ b/tools/testing/selftests/bpf/prog_tests/hashmap.c
@@ -7,17 +7,18 @@
*/
#include "test_progs.h"
#include "bpf/hashmap.h"
+#include <stddef.h>
static int duration = 0;
-static size_t hash_fn(const void *k, void *ctx)
+static size_t hash_fn(long k, void *ctx)
{
- return (long)k;
+ return k;
}
-static bool equal_fn(const void *a, const void *b, void *ctx)
+static bool equal_fn(long a, long b, void *ctx)
{
- return (long)a == (long)b;
+ return a == b;
}
static inline size_t next_pow_2(size_t n)
@@ -52,8 +53,8 @@ static void test_hashmap_generic(void)
return;
for (i = 0; i < ELEM_CNT; i++) {
- const void *oldk, *k = (const void *)(long)i;
- void *oldv, *v = (void *)(long)(1024 + i);
+ long oldk, k = i;
+ long oldv, v = 1024 + i;
err = hashmap__update(map, k, v, &oldk, &oldv);
if (CHECK(err != -ENOENT, "hashmap__update",
@@ -64,20 +65,18 @@ static void test_hashmap_generic(void)
err = hashmap__add(map, k, v);
} else {
err = hashmap__set(map, k, v, &oldk, &oldv);
- if (CHECK(oldk != NULL || oldv != NULL, "check_kv",
- "unexpected k/v: %p=%p\n", oldk, oldv))
+ if (CHECK(oldk != 0 || oldv != 0, "check_kv",
+ "unexpected k/v: %ld=%ld\n", oldk, oldv))
goto cleanup;
}
- if (CHECK(err, "elem_add", "failed to add k/v %ld = %ld: %d\n",
- (long)k, (long)v, err))
+ if (CHECK(err, "elem_add", "failed to add k/v %ld = %ld: %d\n", k, v, err))
goto cleanup;
if (CHECK(!hashmap__find(map, k, &oldv), "elem_find",
- "failed to find key %ld\n", (long)k))
+ "failed to find key %ld\n", k))
goto cleanup;
- if (CHECK(oldv != v, "elem_val",
- "found value is wrong: %ld\n", (long)oldv))
+ if (CHECK(oldv != v, "elem_val", "found value is wrong: %ld\n", oldv))
goto cleanup;
}
@@ -91,8 +90,8 @@ static void test_hashmap_generic(void)
found_msk = 0;
hashmap__for_each_entry(map, entry, bkt) {
- long k = (long)entry->key;
- long v = (long)entry->value;
+ long k = entry->key;
+ long v = entry->value;
found_msk |= 1ULL << k;
if (CHECK(v - k != 1024, "check_kv",
@@ -104,8 +103,8 @@ static void test_hashmap_generic(void)
goto cleanup;
for (i = 0; i < ELEM_CNT; i++) {
- const void *oldk, *k = (const void *)(long)i;
- void *oldv, *v = (void *)(long)(256 + i);
+ long oldk, k = i;
+ long oldv, v = 256 + i;
err = hashmap__add(map, k, v);
if (CHECK(err != -EEXIST, "hashmap__add",
@@ -119,13 +118,13 @@ static void test_hashmap_generic(void)
if (CHECK(err, "elem_upd",
"failed to update k/v %ld = %ld: %d\n",
- (long)k, (long)v, err))
+ k, v, err))
goto cleanup;
if (CHECK(!hashmap__find(map, k, &oldv), "elem_find",
- "failed to find key %ld\n", (long)k))
+ "failed to find key %ld\n", k))
goto cleanup;
if (CHECK(oldv != v, "elem_val",
- "found value is wrong: %ld\n", (long)oldv))
+ "found value is wrong: %ld\n", oldv))
goto cleanup;
}
@@ -139,8 +138,8 @@ static void test_hashmap_generic(void)
found_msk = 0;
hashmap__for_each_entry_safe(map, entry, tmp, bkt) {
- long k = (long)entry->key;
- long v = (long)entry->value;
+ long k = entry->key;
+ long v = entry->value;
found_msk |= 1ULL << k;
if (CHECK(v - k != 256, "elem_check",
@@ -152,7 +151,7 @@ static void test_hashmap_generic(void)
goto cleanup;
found_cnt = 0;
- hashmap__for_each_key_entry(map, entry, (void *)0) {
+ hashmap__for_each_key_entry(map, entry, 0) {
found_cnt++;
}
if (CHECK(!found_cnt, "found_cnt",
@@ -161,27 +160,25 @@ static void test_hashmap_generic(void)
found_msk = 0;
found_cnt = 0;
- hashmap__for_each_key_entry_safe(map, entry, tmp, (void *)0) {
- const void *oldk, *k;
- void *oldv, *v;
+ hashmap__for_each_key_entry_safe(map, entry, tmp, 0) {
+ long oldk, k;
+ long oldv, v;
k = entry->key;
v = entry->value;
found_cnt++;
- found_msk |= 1ULL << (long)k;
+ found_msk |= 1ULL << k;
if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
- "failed to delete k/v %ld = %ld\n",
- (long)k, (long)v))
+ "failed to delete k/v %ld = %ld\n", k, v))
goto cleanup;
if (CHECK(oldk != k || oldv != v, "check_old",
"invalid deleted k/v: expected %ld = %ld, got %ld = %ld\n",
- (long)k, (long)v, (long)oldk, (long)oldv))
+ k, v, oldk, oldv))
goto cleanup;
if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
- "unexpectedly deleted k/v %ld = %ld\n",
- (long)oldk, (long)oldv))
+ "unexpectedly deleted k/v %ld = %ld\n", oldk, oldv))
goto cleanup;
}
@@ -198,26 +195,24 @@ static void test_hashmap_generic(void)
goto cleanup;
hashmap__for_each_entry_safe(map, entry, tmp, bkt) {
- const void *oldk, *k;
- void *oldv, *v;
+ long oldk, k;
+ long oldv, v;
k = entry->key;
v = entry->value;
found_cnt++;
- found_msk |= 1ULL << (long)k;
+ found_msk |= 1ULL << k;
if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
- "failed to delete k/v %ld = %ld\n",
- (long)k, (long)v))
+ "failed to delete k/v %ld = %ld\n", k, v))
goto cleanup;
if (CHECK(oldk != k || oldv != v, "elem_check",
"invalid old k/v: expect %ld = %ld, got %ld = %ld\n",
- (long)k, (long)v, (long)oldk, (long)oldv))
+ k, v, oldk, oldv))
goto cleanup;
if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
- "unexpectedly deleted k/v %ld = %ld\n",
- (long)k, (long)v))
+ "unexpectedly deleted k/v %ld = %ld\n", k, v))
goto cleanup;
}
@@ -235,7 +230,7 @@ static void test_hashmap_generic(void)
hashmap__for_each_entry(map, entry, bkt) {
CHECK(false, "elem_exists",
"unexpected map entries left: %ld = %ld\n",
- (long)entry->key, (long)entry->value);
+ entry->key, entry->value);
goto cleanup;
}
@@ -243,22 +238,107 @@ static void test_hashmap_generic(void)
hashmap__for_each_entry(map, entry, bkt) {
CHECK(false, "elem_exists",
"unexpected map entries left: %ld = %ld\n",
- (long)entry->key, (long)entry->value);
+ entry->key, entry->value);
+ goto cleanup;
+ }
+
+cleanup:
+ hashmap__free(map);
+}
+
+static size_t str_hash_fn(long a, void *ctx)
+{
+ return str_hash((char *)a);
+}
+
+static bool str_equal_fn(long a, long b, void *ctx)
+{
+ return strcmp((char *)a, (char *)b) == 0;
+}
+
+/* Verify that hashmap interface works with pointer keys and values */
+static void test_hashmap_ptr_iface(void)
+{
+ const char *key, *value, *old_key, *old_value;
+ struct hashmap_entry *cur;
+ struct hashmap *map;
+ int err, i, bkt;
+
+ map = hashmap__new(str_hash_fn, str_equal_fn, NULL);
+ if (CHECK(!map, "hashmap__new", "can't allocate hashmap\n"))
goto cleanup;
+
+#define CHECK_STR(fn, var, expected) \
+ CHECK(strcmp(var, (expected)), (fn), \
+ "wrong value of " #var ": '%s' instead of '%s'\n", var, (expected))
+
+ err = hashmap__insert(map, "a", "apricot", HASHMAP_ADD, NULL, NULL);
+ if (CHECK(err, "hashmap__insert", "unexpected error: %d\n", err))
+ goto cleanup;
+
+ err = hashmap__insert(map, "a", "apple", HASHMAP_SET, &old_key, &old_value);
+ if (CHECK(err, "hashmap__insert", "unexpected error: %d\n", err))
+ goto cleanup;
+ CHECK_STR("hashmap__update", old_key, "a");
+ CHECK_STR("hashmap__update", old_value, "apricot");
+
+ err = hashmap__add(map, "b", "banana");
+ if (CHECK(err, "hashmap__add", "unexpected error: %d\n", err))
+ goto cleanup;
+
+ err = hashmap__set(map, "b", "breadfruit", &old_key, &old_value);
+ if (CHECK(err, "hashmap__set", "unexpected error: %d\n", err))
+ goto cleanup;
+ CHECK_STR("hashmap__set", old_key, "b");
+ CHECK_STR("hashmap__set", old_value, "banana");
+
+ err = hashmap__update(map, "b", "blueberry", &old_key, &old_value);
+ if (CHECK(err, "hashmap__update", "unexpected error: %d\n", err))
+ goto cleanup;
+ CHECK_STR("hashmap__update", old_key, "b");
+ CHECK_STR("hashmap__update", old_value, "breadfruit");
+
+ err = hashmap__append(map, "c", "cherry");
+ if (CHECK(err, "hashmap__append", "unexpected error: %d\n", err))
+ goto cleanup;
+
+ if (CHECK(!hashmap__delete(map, "c", &old_key, &old_value),
+ "hashmap__delete", "expected to have entry for 'c'\n"))
+ goto cleanup;
+ CHECK_STR("hashmap__delete", old_key, "c");
+ CHECK_STR("hashmap__delete", old_value, "cherry");
+
+ CHECK(!hashmap__find(map, "b", &value), "hashmap__find", "can't find value for 'b'\n");
+ CHECK_STR("hashmap__find", value, "blueberry");
+
+ if (CHECK(!hashmap__delete(map, "b", NULL, NULL),
+ "hashmap__delete", "expected to have entry for 'b'\n"))
+ goto cleanup;
+
+ i = 0;
+ hashmap__for_each_entry(map, cur, bkt) {
+ if (CHECK(i != 0, "hashmap__for_each_entry", "too many entries"))
+ goto cleanup;
+ key = cur->pkey;
+ value = cur->pvalue;
+ CHECK_STR("entry", key, "a");
+ CHECK_STR("entry", value, "apple");
+ i++;
}
+#undef CHECK_STR
cleanup:
hashmap__free(map);
}
-static size_t collision_hash_fn(const void *k, void *ctx)
+static size_t collision_hash_fn(long k, void *ctx)
{
return 0;
}
static void test_hashmap_multimap(void)
{
- void *k1 = (void *)0, *k2 = (void *)1;
+ long k1 = 0, k2 = 1;
struct hashmap_entry *entry;
struct hashmap *map;
long found_msk;
@@ -273,23 +353,23 @@ static void test_hashmap_multimap(void)
* [0] -> 1, 2, 4;
* [1] -> 8, 16, 32;
*/
- err = hashmap__append(map, k1, (void *)1);
+ err = hashmap__append(map, k1, 1);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
- err = hashmap__append(map, k1, (void *)2);
+ err = hashmap__append(map, k1, 2);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
- err = hashmap__append(map, k1, (void *)4);
+ err = hashmap__append(map, k1, 4);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
- err = hashmap__append(map, k2, (void *)8);
+ err = hashmap__append(map, k2, 8);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
- err = hashmap__append(map, k2, (void *)16);
+ err = hashmap__append(map, k2, 16);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
- err = hashmap__append(map, k2, (void *)32);
+ err = hashmap__append(map, k2, 32);
if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
goto cleanup;
@@ -300,7 +380,7 @@ static void test_hashmap_multimap(void)
/* verify global iteration still works and sees all values */
found_msk = 0;
hashmap__for_each_entry(map, entry, bkt) {
- found_msk |= (long)entry->value;
+ found_msk |= entry->value;
}
if (CHECK(found_msk != (1 << 6) - 1, "found_msk",
"not all keys iterated: %lx\n", found_msk))
@@ -309,7 +389,7 @@ static void test_hashmap_multimap(void)
/* iterate values for key 1 */
found_msk = 0;
hashmap__for_each_key_entry(map, entry, k1) {
- found_msk |= (long)entry->value;
+ found_msk |= entry->value;
}
if (CHECK(found_msk != (1 | 2 | 4), "found_msk",
"invalid k1 values: %lx\n", found_msk))
@@ -318,7 +398,7 @@ static void test_hashmap_multimap(void)
/* iterate values for key 2 */
found_msk = 0;
hashmap__for_each_key_entry(map, entry, k2) {
- found_msk |= (long)entry->value;
+ found_msk |= entry->value;
}
if (CHECK(found_msk != (8 | 16 | 32), "found_msk",
"invalid k2 values: %lx\n", found_msk))
@@ -333,7 +413,7 @@ static void test_hashmap_empty()
struct hashmap_entry *entry;
int bkt;
struct hashmap *map;
- void *k = (void *)0;
+ long k = 0;
/* force collisions */
map = hashmap__new(hash_fn, equal_fn, NULL);
@@ -374,4 +454,6 @@ void test_hashmap()
test_hashmap_multimap();
if (test__start_subtest("empty"))
test_hashmap_empty();
+ if (test__start_subtest("ptr_iface"))
+ test_hashmap_ptr_iface();
}
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
index 287b3ac40227..eedbf1937fc4 100644
--- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
@@ -312,12 +312,12 @@ static inline __u64 get_time_ns(void)
return (__u64) t.tv_sec * 1000000000 + t.tv_nsec;
}
-static size_t symbol_hash(const void *key, void *ctx __maybe_unused)
+static size_t symbol_hash(long key, void *ctx __maybe_unused)
{
return str_hash((const char *) key);
}
-static bool symbol_equal(const void *key1, const void *key2, void *ctx __maybe_unused)
+static bool symbol_equal(long key1, long key2, void *ctx __maybe_unused)
{
return strcmp((const char *) key1, (const char *) key2) == 0;
}
@@ -372,7 +372,7 @@ static int get_syms(char ***symsp, size_t *cntp)
sizeof("__ftrace_invalid_address__") - 1))
continue;
- err = hashmap__add(map, name, NULL);
+ err = hashmap__add(map, name, 0);
if (err == -EEXIST)
continue;
if (err)