* [PATCH bpf-next 1/5 v2] libbpf: Add btf__type_cnt() and btf__raw_data() APIs
2021-10-22 13:06 [PATCH bpf-next 0/5 v2] libbpf: Add btf__type_cnt() and btf__raw_data() APIs Hengqi Chen
@ 2021-10-22 13:06 ` Hengqi Chen
2021-10-22 13:06 ` [PATCH bpf-next 2/5 v2] perf bpf: Switch to new btf__raw_data API Hengqi Chen
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Hengqi Chen @ 2021-10-22 13:06 UTC (permalink / raw)
To: bpf
Cc: ast, daniel, andrii, yhs, john.fastabend, kafai, songliubraving,
hengqi.chen
Add btf__type_cnt() and btf__raw_data() APIs and deprecate
btf__get_nr_type() and btf__get_raw_data() since the old APIs
don't follow the libbpf naming convention for getters which
omit 'get' in the name (see [0]). btf__raw_data() is just an
alias to the existing btf__get_raw_data(). btf__type_cnt()
now returns the number of all types of the BTF object
including 'void'.
[0] Closes: https://github.com/libbpf/libbpf/issues/279
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
---
tools/lib/bpf/btf.c | 36 ++++++++++++++++++++++--------------
tools/lib/bpf/btf.h | 4 ++++
tools/lib/bpf/btf_dump.c | 8 ++++----
tools/lib/bpf/libbpf.c | 36 ++++++++++++++++++------------------
tools/lib/bpf/libbpf.map | 2 ++
tools/lib/bpf/linker.c | 28 ++++++++++++++--------------
6 files changed, 64 insertions(+), 50 deletions(-)
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 3a01c4b7f36a..ed88746a438f 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -57,7 +57,7 @@ struct btf {
* representation is broken up into three independently allocated
* memory regions to be able to modify them independently.
* raw_data is nulled out at that point, but can be later allocated
- * and cached again if user calls btf__get_raw_data(), at which point
+ * and cached again if user calls btf__raw_data(), at which point
* raw_data will contain a contiguous copy of header, types, and
* strings:
*
@@ -435,6 +435,11 @@ __u32 btf__get_nr_types(const struct btf *btf)
return btf->start_id + btf->nr_types - 1;
}
+__u32 btf__type_cnt(const struct btf *btf)
+{
+ return btf->start_id + btf->nr_types;
+}
+
const struct btf *btf__base_btf(const struct btf *btf)
{
return btf->base_btf;
@@ -466,8 +471,8 @@ static int determine_ptr_size(const struct btf *btf)
if (btf->base_btf && btf->base_btf->ptr_sz > 0)
return btf->base_btf->ptr_sz;
- n = btf__get_nr_types(btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(btf);
+ for (i = 1; i < n; i++) {
t = btf__type_by_id(btf, i);
if (!btf_is_int(t))
continue;
@@ -684,12 +689,12 @@ int btf__resolve_type(const struct btf *btf, __u32 type_id)
__s32 btf__find_by_name(const struct btf *btf, const char *type_name)
{
- __u32 i, nr_types = btf__get_nr_types(btf);
+ __u32 i, nr_types = btf__type_cnt(btf);
if (!strcmp(type_name, "void"))
return 0;
- for (i = 1; i <= nr_types; i++) {
+ for (i = 1; i < nr_types; i++) {
const struct btf_type *t = btf__type_by_id(btf, i);
const char *name = btf__name_by_offset(btf, t->name_off);
@@ -703,12 +708,12 @@ __s32 btf__find_by_name(const struct btf *btf, const char *type_name)
static __s32 btf_find_by_name_kind(const struct btf *btf, int start_id,
const char *type_name, __u32 kind)
{
- __u32 i, nr_types = btf__get_nr_types(btf);
+ __u32 i, nr_types = btf__type_cnt(btf);
if (kind == BTF_KIND_UNKN || !strcmp(type_name, "void"))
return 0;
- for (i = start_id; i <= nr_types; i++) {
+ for (i = start_id; i < nr_types; i++) {
const struct btf_type *t = btf__type_by_id(btf, i);
const char *name;
@@ -781,7 +786,7 @@ static struct btf *btf_new_empty(struct btf *base_btf)
if (base_btf) {
btf->base_btf = base_btf;
- btf->start_id = btf__get_nr_types(base_btf) + 1;
+ btf->start_id = btf__type_cnt(base_btf);
btf->start_str_off = base_btf->hdr->str_len;
}
@@ -831,7 +836,7 @@ static struct btf *btf_new(const void *data, __u32 size, struct btf *base_btf)
if (base_btf) {
btf->base_btf = base_btf;
- btf->start_id = btf__get_nr_types(base_btf) + 1;
+ btf->start_id = btf__type_cnt(base_btf);
btf->start_str_off = base_btf->hdr->str_len;
}
@@ -1224,7 +1229,7 @@ static void *btf_get_raw_data(const struct btf *btf, __u32 *size, bool swap_endi
return NULL;
}
-const void *btf__get_raw_data(const struct btf *btf_ro, __u32 *size)
+const void *btf__raw_data(const struct btf *btf_ro, __u32 *size)
{
struct btf *btf = (struct btf *)btf_ro;
__u32 data_sz;
@@ -1232,7 +1237,7 @@ const void *btf__get_raw_data(const struct btf *btf_ro, __u32 *size)
data = btf_get_raw_data(btf, &data_sz, btf->swapped_endian);
if (!data)
- return errno = -ENOMEM, NULL;
+ return errno = ENOMEM, NULL;
btf->raw_size = data_sz;
if (btf->swapped_endian)
@@ -1243,6 +1248,9 @@ const void *btf__get_raw_data(const struct btf *btf_ro, __u32 *size)
return data;
}
+__attribute__((alias("btf__raw_data")))
+const void *btf__get_raw_data(const struct btf *btf, __u32 *size);
+
const char *btf__str_by_offset(const struct btf *btf, __u32 offset)
{
if (offset < btf->start_str_off)
@@ -1651,7 +1659,7 @@ int btf__add_btf(struct btf *btf, const struct btf *src_btf)
old_strs_len = btf->hdr->str_len;
data_sz = src_btf->hdr->type_len;
- cnt = btf__get_nr_types(src_btf);
+ cnt = btf__type_cnt(src_btf) - 1;
/* pre-allocate enough memory for new types */
t = btf_add_type_mem(btf, data_sz);
@@ -1968,7 +1976,7 @@ int btf__add_union(struct btf *btf, const char *name, __u32 byte_sz)
static struct btf_type *btf_last_type(struct btf *btf)
{
- return btf_type_by_id(btf, btf__get_nr_types(btf));
+ return btf_type_by_id(btf, btf__type_cnt(btf) - 1);
}
/*
@@ -3172,7 +3180,7 @@ static struct btf_dedup *btf_dedup_new(struct btf *btf, struct btf_ext *btf_ext,
goto done;
}
- type_cnt = btf__get_nr_types(btf) + 1;
+ type_cnt = btf__type_cnt(btf);
d->map = malloc(sizeof(__u32) * type_cnt);
if (!d->map) {
err = -ENOMEM;
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index c9364be42035..bc005ba3ceec 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h
@@ -132,7 +132,9 @@ LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
const char *type_name);
LIBBPF_API __s32 btf__find_by_name_kind(const struct btf *btf,
const char *type_name, __u32 kind);
+LIBBPF_DEPRECATED_SINCE(0, 7, "use btf__type_cnt() instead; note that btf__get_nr_types() == btf__type_cnt() - 1")
LIBBPF_API __u32 btf__get_nr_types(const struct btf *btf);
+LIBBPF_API __u32 btf__type_cnt(const struct btf *btf);
LIBBPF_API const struct btf *btf__base_btf(const struct btf *btf);
LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
__u32 id);
@@ -145,7 +147,9 @@ LIBBPF_API int btf__resolve_type(const struct btf *btf, __u32 type_id);
LIBBPF_API int btf__align_of(const struct btf *btf, __u32 id);
LIBBPF_API int btf__fd(const struct btf *btf);
LIBBPF_API void btf__set_fd(struct btf *btf, int fd);
+LIBBPF_DEPRECATED_SINCE(0, 7, "use btf__raw_data() instead")
LIBBPF_API const void *btf__get_raw_data(const struct btf *btf, __u32 *size);
+LIBBPF_API const void *btf__raw_data(const struct btf *btf, __u32 *size);
LIBBPF_API const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
LIBBPF_API const char *btf__str_by_offset(const struct btf *btf, __u32 offset);
LIBBPF_API int btf__get_map_kv_tids(const struct btf *btf, const char *map_name,
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index e9e5801ece4c..c09a020f56f9 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -188,7 +188,7 @@ struct btf_dump *btf_dump__new(const struct btf *btf,
static int btf_dump_resize(struct btf_dump *d)
{
- int err, last_id = btf__get_nr_types(d->btf);
+ int err, last_id = btf__type_cnt(d->btf) - 1;
if (last_id <= d->last_id)
return 0;
@@ -262,7 +262,7 @@ int btf_dump__dump_type(struct btf_dump *d, __u32 id)
{
int err, i;
- if (id > btf__get_nr_types(d->btf))
+ if (id >= btf__type_cnt(d->btf))
return libbpf_err(-EINVAL);
err = btf_dump_resize(d);
@@ -294,11 +294,11 @@ int btf_dump__dump_type(struct btf_dump *d, __u32 id)
*/
static int btf_dump_mark_referenced(struct btf_dump *d)
{
- int i, j, n = btf__get_nr_types(d->btf);
+ int i, j, n = btf__type_cnt(d->btf);
const struct btf_type *t;
__u16 vlen;
- for (i = d->last_id + 1; i <= n; i++) {
+ for (i = d->last_id + 1; i < n; i++) {
t = btf__type_by_id(d->btf, i);
vlen = btf_vlen(t);
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index db6e48014839..eb102440a28a 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -2497,8 +2497,8 @@ static int bpf_object__init_user_btf_maps(struct bpf_object *obj, bool strict,
return -EINVAL;
}
- nr_types = btf__get_nr_types(obj->btf);
- for (i = 1; i <= nr_types; i++) {
+ nr_types = btf__type_cnt(obj->btf);
+ for (i = 1; i < nr_types; i++) {
t = btf__type_by_id(obj->btf, i);
if (!btf_is_datasec(t))
continue;
@@ -2579,7 +2579,7 @@ static void bpf_object__sanitize_btf(struct bpf_object *obj, struct btf *btf)
struct btf_type *t;
int i, j, vlen;
- for (i = 1; i <= btf__get_nr_types(btf); i++) {
+ for (i = 1; i < btf__type_cnt(btf); i++) {
t = (struct btf_type *)btf__type_by_id(btf, i);
if ((!has_datasec && btf_is_var(t)) || (!has_decl_tag && btf_is_decl_tag(t))) {
@@ -2763,9 +2763,9 @@ static int btf_fixup_datasec(struct bpf_object *obj, struct btf *btf,
static int btf_finalize_data(struct bpf_object *obj, struct btf *btf)
{
int err = 0;
- __u32 i, n = btf__get_nr_types(btf);
+ __u32 i, n = btf__type_cnt(btf);
- for (i = 1; i <= n; i++) {
+ for (i = 1; i < n; i++) {
struct btf_type *t = btf_type_by_id(btf, i);
/* Loader needs to fix up some of the things compiler
@@ -2905,8 +2905,8 @@ static int bpf_object__sanitize_and_load_btf(struct bpf_object *obj)
if (!prog->mark_btf_static || !prog_is_subprog(obj, prog))
continue;
- n = btf__get_nr_types(obj->btf);
- for (j = 1; j <= n; j++) {
+ n = btf__type_cnt(obj->btf);
+ for (j = 1; j < n; j++) {
t = btf_type_by_id(obj->btf, j);
if (!btf_is_func(t) || btf_func_linkage(t) != BTF_FUNC_GLOBAL)
continue;
@@ -2926,7 +2926,7 @@ static int bpf_object__sanitize_and_load_btf(struct bpf_object *obj)
__u32 sz;
/* clone BTF to sanitize a copy and leave the original intact */
- raw_data = btf__get_raw_data(obj->btf, &sz);
+ raw_data = btf__raw_data(obj->btf, &sz);
kern_btf = btf__new(raw_data, sz);
err = libbpf_get_error(kern_btf);
if (err)
@@ -2939,7 +2939,7 @@ static int bpf_object__sanitize_and_load_btf(struct bpf_object *obj)
if (obj->gen_loader) {
__u32 raw_size = 0;
- const void *raw_data = btf__get_raw_data(kern_btf, &raw_size);
+ const void *raw_data = btf__raw_data(kern_btf, &raw_size);
if (!raw_data)
return -ENOMEM;
@@ -3350,8 +3350,8 @@ static int find_extern_btf_id(const struct btf *btf, const char *ext_name)
if (!btf)
return -ESRCH;
- n = btf__get_nr_types(btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(btf);
+ for (i = 1; i < n; i++) {
t = btf__type_by_id(btf, i);
if (!btf_is_var(t) && !btf_is_func(t))
@@ -3382,8 +3382,8 @@ static int find_extern_sec_btf_id(struct btf *btf, int ext_btf_id) {
if (!btf)
return -ESRCH;
- n = btf__get_nr_types(btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(btf);
+ for (i = 1; i < n; i++) {
t = btf__type_by_id(btf, i);
if (!btf_is_datasec(t))
@@ -3467,8 +3467,8 @@ static int find_int_btf_id(const struct btf *btf)
const struct btf_type *t;
int i, n;
- n = btf__get_nr_types(btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(btf);
+ for (i = 1; i < n; i++) {
t = btf__type_by_id(btf, i);
if (btf_is_int(t) && btf_int_bits(t) == 32)
@@ -5076,8 +5076,8 @@ static int bpf_core_add_cands(struct bpf_core_cand *local_cand,
size_t targ_essent_len;
int n, i;
- n = btf__get_nr_types(targ_btf);
- for (i = targ_start_id; i <= n; i++) {
+ n = btf__type_cnt(targ_btf);
+ for (i = targ_start_id; i < n; i++) {
t = btf__type_by_id(targ_btf, i);
if (btf_kind(t) != btf_kind(local_cand->t))
continue;
@@ -5252,7 +5252,7 @@ bpf_core_find_cands(struct bpf_object *obj, const struct btf *local_btf, __u32 l
err = bpf_core_add_cands(&local_cand, local_essent_len,
obj->btf_modules[i].btf,
obj->btf_modules[i].name,
- btf__get_nr_types(obj->btf_vmlinux) + 1,
+ btf__type_cnt(obj->btf_vmlinux),
cands);
if (err)
goto err_out;
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index e6fb1ba49369..116964a29e44 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -395,4 +395,6 @@ LIBBPF_0.6.0 {
bpf_object__prev_program;
btf__add_btf;
btf__add_decl_tag;
+ btf__raw_data;
+ btf__type_cnt;
} LIBBPF_0.5.0;
diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 13e6fdc7d8cb..7bf658fbda80 100644
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -920,7 +920,7 @@ static int check_btf_type_id(__u32 *type_id, void *ctx)
{
struct btf *btf = ctx;
- if (*type_id > btf__get_nr_types(btf))
+ if (*type_id >= btf__type_cnt(btf))
return -EINVAL;
return 0;
@@ -947,8 +947,8 @@ static int linker_sanity_check_btf(struct src_obj *obj)
if (!obj->btf)
return 0;
- n = btf__get_nr_types(obj->btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(obj->btf);
+ for (i = 1; i < n; i++) {
t = btf_type_by_id(obj->btf, i);
err = err ?: btf_type_visit_type_ids(t, check_btf_type_id, obj->btf);
@@ -1658,8 +1658,8 @@ static int find_glob_sym_btf(struct src_obj *obj, Elf64_Sym *sym, const char *sy
return -EINVAL;
}
- n = btf__get_nr_types(obj->btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(obj->btf);
+ for (i = 1; i < n; i++) {
t = btf__type_by_id(obj->btf, i);
/* some global and extern FUNCs and VARs might not be associated with any
@@ -2130,8 +2130,8 @@ static int linker_fixup_btf(struct src_obj *obj)
if (!obj->btf)
return 0;
- n = btf__get_nr_types(obj->btf);
- for (i = 1; i <= n; i++) {
+ n = btf__type_cnt(obj->btf);
+ for (i = 1; i < n; i++) {
struct btf_var_secinfo *vi;
struct btf_type *t;
@@ -2234,14 +2234,14 @@ static int linker_append_btf(struct bpf_linker *linker, struct src_obj *obj)
if (!obj->btf)
return 0;
- start_id = btf__get_nr_types(linker->btf) + 1;
- n = btf__get_nr_types(obj->btf);
+ start_id = btf__type_cnt(linker->btf);
+ n = btf__type_cnt(obj->btf);
obj->btf_type_map = calloc(n + 1, sizeof(int));
if (!obj->btf_type_map)
return -ENOMEM;
- for (i = 1; i <= n; i++) {
+ for (i = 1; i < n; i++) {
struct glob_sym *glob_sym = NULL;
t = btf__type_by_id(obj->btf, i);
@@ -2296,8 +2296,8 @@ static int linker_append_btf(struct bpf_linker *linker, struct src_obj *obj)
}
/* remap all the types except DATASECs */
- n = btf__get_nr_types(linker->btf);
- for (i = start_id; i <= n; i++) {
+ n = btf__type_cnt(linker->btf);
+ for (i = start_id; i < n; i++) {
struct btf_type *dst_t = btf_type_by_id(linker->btf, i);
if (btf_type_visit_type_ids(dst_t, remap_type_id, obj->btf_type_map))
@@ -2656,7 +2656,7 @@ static int finalize_btf(struct bpf_linker *linker)
__u32 raw_sz;
/* bail out if no BTF data was produced */
- if (btf__get_nr_types(linker->btf) == 0)
+ if (btf__type_cnt(linker->btf) == 1)
return 0;
for (i = 1; i < linker->sec_cnt; i++) {
@@ -2693,7 +2693,7 @@ static int finalize_btf(struct bpf_linker *linker)
}
/* Emit .BTF section */
- raw_data = btf__get_raw_data(linker->btf, &raw_sz);
+ raw_data = btf__raw_data(linker->btf, &raw_sz);
if (!raw_data)
return -ENOMEM;
--
2.30.2
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH bpf-next 5/5 v2] selftests/bpf: Switch to new btf__type_cnt/btf__raw_data APIs
2021-10-22 13:06 [PATCH bpf-next 0/5 v2] libbpf: Add btf__type_cnt() and btf__raw_data() APIs Hengqi Chen
` (3 preceding siblings ...)
2021-10-22 13:06 ` [PATCH bpf-next 4/5 v2] bpftool: " Hengqi Chen
@ 2021-10-22 13:06 ` Hengqi Chen
2021-10-22 23:39 ` [PATCH bpf-next 0/5 v2] libbpf: Add btf__type_cnt() and btf__raw_data() APIs Andrii Nakryiko
5 siblings, 0 replies; 7+ messages in thread
From: Hengqi Chen @ 2021-10-22 13:06 UTC (permalink / raw)
To: bpf
Cc: ast, daniel, andrii, yhs, john.fastabend, kafai, songliubraving,
hengqi.chen
Replace the calls to btf__get_nr_types/btf__get_raw_data in
selftests with new APIs btf__type_cnt/btf__raw_data. The old
APIs will be deprecated in libbpf v0.7+.
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
---
tools/testing/selftests/bpf/btf_helpers.c | 4 ++--
tools/testing/selftests/bpf/prog_tests/btf.c | 10 +++++-----
tools/testing/selftests/bpf/prog_tests/btf_dump.c | 8 ++++----
tools/testing/selftests/bpf/prog_tests/btf_endian.c | 12 ++++++------
tools/testing/selftests/bpf/prog_tests/btf_split.c | 2 +-
.../testing/selftests/bpf/prog_tests/core_autosize.c | 2 +-
tools/testing/selftests/bpf/prog_tests/core_reloc.c | 2 +-
.../selftests/bpf/prog_tests/resolve_btfids.c | 4 ++--
8 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c
index 668cfa20bb1b..b5b6b013a245 100644
--- a/tools/testing/selftests/bpf/btf_helpers.c
+++ b/tools/testing/selftests/bpf/btf_helpers.c
@@ -215,7 +215,7 @@ int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[])
int i;
bool ok = true;
- ASSERT_EQ(btf__get_nr_types(btf), nr_types, "btf_nr_types");
+ ASSERT_EQ(btf__type_cnt(btf) - 1, nr_types, "btf_nr_types");
for (i = 1; i <= nr_types; i++) {
if (!ASSERT_STREQ(btf_type_raw_dump(btf, i), exp_types[i - 1], "raw_dump"))
@@ -254,7 +254,7 @@ const char *btf_type_c_dump(const struct btf *btf)
return NULL;
}
- for (i = 1; i <= btf__get_nr_types(btf); i++) {
+ for (i = 1; i < btf__type_cnt(btf); i++) {
err = btf_dump__dump_type(d, i);
if (err) {
fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index fa67f25bbef5..557f948f9964 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -7274,8 +7274,8 @@ static void do_test_dedup(unsigned int test_num)
goto done;
}
- test_btf_data = btf__get_raw_data(test_btf, &test_btf_size);
- expect_btf_data = btf__get_raw_data(expect_btf, &expect_btf_size);
+ test_btf_data = btf__raw_data(test_btf, &test_btf_size);
+ expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size);
if (CHECK(test_btf_size != expect_btf_size,
"test_btf_size:%u != expect_btf_size:%u",
test_btf_size, expect_btf_size)) {
@@ -7329,8 +7329,8 @@ static void do_test_dedup(unsigned int test_num)
expect_str_cur += expect_len + 1;
}
- test_nr_types = btf__get_nr_types(test_btf);
- expect_nr_types = btf__get_nr_types(expect_btf);
+ test_nr_types = btf__type_cnt(test_btf);
+ expect_nr_types = btf__type_cnt(expect_btf);
if (CHECK(test_nr_types != expect_nr_types,
"test_nr_types:%u != expect_nr_types:%u",
test_nr_types, expect_nr_types)) {
@@ -7338,7 +7338,7 @@ static void do_test_dedup(unsigned int test_num)
goto done;
}
- for (i = 1; i <= test_nr_types; i++) {
+ for (i = 1; i < test_nr_types; i++) {
const struct btf_type *test_type, *expect_type;
int test_size, expect_size;
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dump.c b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
index 12f457b6786d..3d837a7019fd 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_dump.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
@@ -27,7 +27,7 @@ static struct btf_dump_test_case {
static int btf_dump_all_types(const struct btf *btf,
const struct btf_dump_opts *opts)
{
- size_t type_cnt = btf__get_nr_types(btf);
+ size_t type_cnt = btf__type_cnt(btf);
struct btf_dump *d;
int err = 0, id;
@@ -36,7 +36,7 @@ static int btf_dump_all_types(const struct btf *btf,
if (err)
return err;
- for (id = 1; id <= type_cnt; id++) {
+ for (id = 1; id < type_cnt; id++) {
err = btf_dump__dump_type(d, id);
if (err)
goto done;
@@ -171,7 +171,7 @@ void test_btf_dump_incremental(void)
err = btf__add_field(btf, "x", 2, 0, 0);
ASSERT_OK(err, "field_ok");
- for (i = 1; i <= btf__get_nr_types(btf); i++) {
+ for (i = 1; i < btf__type_cnt(btf); i++) {
err = btf_dump__dump_type(d, i);
ASSERT_OK(err, "dump_type_ok");
}
@@ -210,7 +210,7 @@ void test_btf_dump_incremental(void)
err = btf__add_field(btf, "s", 3, 32, 0);
ASSERT_OK(err, "field_ok");
- for (i = 1; i <= btf__get_nr_types(btf); i++) {
+ for (i = 1; i < btf__type_cnt(btf); i++) {
err = btf_dump__dump_type(d, i);
ASSERT_OK(err, "dump_type_ok");
}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_endian.c b/tools/testing/selftests/bpf/prog_tests/btf_endian.c
index 8ab5d3e358dd..2653cc482df4 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_endian.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_endian.c
@@ -32,7 +32,7 @@ void test_btf_endian() {
ASSERT_EQ(btf__endianness(btf), swap_endian, "endian");
/* Get raw BTF data in non-native endianness... */
- raw_data = btf__get_raw_data(btf, &raw_sz);
+ raw_data = btf__raw_data(btf, &raw_sz);
if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
goto err_out;
@@ -42,9 +42,9 @@ void test_btf_endian() {
goto err_out;
ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
- ASSERT_EQ(btf__get_nr_types(swap_btf), btf__get_nr_types(btf), "nr_types");
+ ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
- swap_raw_data = btf__get_raw_data(swap_btf, &swap_raw_sz);
+ swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
goto err_out;
@@ -58,7 +58,7 @@ void test_btf_endian() {
/* swap it back to native endianness */
btf__set_endianness(swap_btf, endian);
- swap_raw_data = btf__get_raw_data(swap_btf, &swap_raw_sz);
+ swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
goto err_out;
@@ -75,7 +75,7 @@ void test_btf_endian() {
swap_btf = NULL;
btf__set_endianness(btf, swap_endian);
- raw_data = btf__get_raw_data(btf, &raw_sz);
+ raw_data = btf__raw_data(btf, &raw_sz);
if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
goto err_out;
@@ -85,7 +85,7 @@ void test_btf_endian() {
goto err_out;
ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
- ASSERT_EQ(btf__get_nr_types(swap_btf), btf__get_nr_types(btf), "nr_types");
+ ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
/* the type should appear as if it was stored in native endianness */
t = btf__type_by_id(swap_btf, var_id);
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_split.c b/tools/testing/selftests/bpf/prog_tests/btf_split.c
index ca7c2a91610a..b1ffe61f2aa9 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_split.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_split.c
@@ -72,7 +72,7 @@ void test_btf_split() {
d = btf_dump__new(btf2, NULL, &opts, btf_dump_printf);
if (!ASSERT_OK_PTR(d, "btf_dump__new"))
goto cleanup;
- for (i = 1; i <= btf__get_nr_types(btf2); i++) {
+ for (i = 1; i < btf__type_cnt(btf2); i++) {
err = btf_dump__dump_type(d, i);
ASSERT_OK(err, "dump_type_ok");
}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_autosize.c b/tools/testing/selftests/bpf/prog_tests/core_autosize.c
index 2a0dac6394ef..1dfe14ff6aa4 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_autosize.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_autosize.c
@@ -112,7 +112,7 @@ void test_core_autosize(void)
if (!ASSERT_OK_PTR(f, "btf_fdopen"))
goto cleanup;
- raw_data = btf__get_raw_data(btf, &raw_sz);
+ raw_data = btf__raw_data(btf, &raw_sz);
if (!ASSERT_OK_PTR(raw_data, "raw_data"))
goto cleanup;
written = fwrite(raw_data, 1, raw_sz, f);
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index cc50f8feeca3..55ec85ba7375 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -381,7 +381,7 @@ static int setup_type_id_case_local(struct core_reloc_test_case *test)
exp->local_anon_void_ptr = -1;
exp->local_anon_arr = -1;
- for (i = 1; i <= btf__get_nr_types(local_btf); i++)
+ for (i = 1; i < btf__type_cnt(local_btf); i++)
{
t = btf__type_by_id(local_btf, i);
/* we are interested only in anonymous types */
diff --git a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
index f62361306f6d..badda6309fd9 100644
--- a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
+++ b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
@@ -106,9 +106,9 @@ static int resolve_symbols(void)
"Failed to load BTF from btf_data.o\n"))
return -1;
- nr = btf__get_nr_types(btf);
+ nr = btf__type_cnt(btf);
- for (type_id = 1; type_id <= nr; type_id++) {
+ for (type_id = 1; type_id < nr; type_id++) {
if (__resolve_symbol(btf, type_id))
break;
}
--
2.30.2
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