bpf: Replace [u]int32_t and [u]int64_t in libbpf

This patch replaces [u]int32_t and [u]int64_t usage with
__[su]32 and __[su]64.  The same change goes for [u]int16_t
and [u]int8_t.

Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

4 files changed, 28 insertions, 30 deletions

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 8c54a4b6f187..b80de80b4584 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2018 Facebook */
 
 #include <stdlib.h>
-#include <stdint.h>
 #include <string.h>
 #include <unistd.h>
 #include <errno.h>
@@ -27,13 +26,13 @@ struct btf {
         struct btf_type **types;
         const char *strings;
         void *nohdr_data;
-        uint32_t nr_types;
-        uint32_t types_size;
-        uint32_t data_size;
+        __u32 nr_types;
+        __u32 types_size;
+        __u32 data_size;
         int fd;
 };
 
-static const char *btf_name_by_offset(const struct btf *btf, uint32_t offset)
+static const char *btf_name_by_offset(const struct btf *btf, __u32 offset)
 {
         if (offset < btf->hdr->str_len)
                 return &btf->strings[offset];
@@ -45,7 +44,7 @@ static int btf_add_type(struct btf *btf, struct btf_type *t)
 {
         if (btf->types_size - btf->nr_types < 2) {
                 struct btf_type **new_types;
-                u32 expand_by, new_size;
+                __u32 expand_by, new_size;
 
                 if (btf->types_size == BTF_MAX_NR_TYPES)
                         return -E2BIG;
@@ -72,7 +71,7 @@ static int btf_add_type(struct btf *btf, struct btf_type *t)
 static int btf_parse_hdr(struct btf *btf, btf_print_fn_t err_log)
 {
         const struct btf_header *hdr = btf->hdr;
-        u32 meta_left;
+        __u32 meta_left;
 
         if (btf->data_size < sizeof(struct btf_header)) {
                 elog("BTF header not found\n");
@@ -151,7 +150,7 @@ static int btf_parse_type_sec(struct btf *btf, btf_print_fn_t err_log)
 
         while (next_type < end_type) {
                 struct btf_type *t = next_type;
-                uint16_t vlen = BTF_INFO_VLEN(t->info);
+                __u16 vlen = BTF_INFO_VLEN(t->info);
                 int err;
 
                 next_type += sizeof(*t);
@@ -191,7 +190,7 @@ static int btf_parse_type_sec(struct btf *btf, btf_print_fn_t err_log)
 }
 
 static const struct btf_type *btf_type_by_id(const struct btf *btf,
-                                             uint32_t type_id)
+                                             __u32 type_id)
 {
         if (type_id > btf->nr_types)
                 return NULL;
@@ -209,7 +208,7 @@ static bool btf_type_is_void_or_null(const struct btf_type *t)
         return !t || btf_type_is_void(t);
 }
 
-static int64_t btf_type_size(const struct btf_type *t)
+static __s64 btf_type_size(const struct btf_type *t)
 {
         switch (BTF_INFO_KIND(t->info)) {
         case BTF_KIND_INT:
@@ -226,12 +225,12 @@ static int64_t btf_type_size(const struct btf_type *t)
 
 #define MAX_RESOLVE_DEPTH 32
 
-int64_t btf__resolve_size(const struct btf *btf, uint32_t type_id)
+__s64 btf__resolve_size(const struct btf *btf, __u32 type_id)
 {
         const struct btf_array *array;
         const struct btf_type *t;
-        uint32_t nelems = 1;
-        int64_t size = -1;
+        __u32 nelems = 1;
+        __s64 size = -1;
         int i;
 
         t = btf_type_by_id(btf, type_id);
@@ -271,9 +270,9 @@ int64_t btf__resolve_size(const struct btf *btf, uint32_t type_id)
         return nelems * size;
 }
 
-int32_t btf__find_by_name(const struct btf *btf, const char *type_name)
+__s32 btf__find_by_name(const struct btf *btf, const char *type_name)
 {
-        uint32_t i;
+        __u32 i;
 
         if (!strcmp(type_name, "void"))
                 return 0;
@@ -302,10 +301,9 @@ void btf__free(struct btf *btf)
         free(btf);
 }
 
-struct btf *btf__new(uint8_t *data, uint32_t size,
-                     btf_print_fn_t err_log)
+struct btf *btf__new(__u8 *data, __u32 size, btf_print_fn_t err_log)
 {
-        uint32_t log_buf_size = 0;
+        __u32 log_buf_size = 0;
         char *log_buf = NULL;
         struct btf *btf;
         int err;
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index 74bb344035bb..ed3a84370ccc 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h
@@ -4,7 +4,7 @@
 #ifndef __BPF_BTF_H
 #define __BPF_BTF_H
 
-#include <stdint.h>
+#include <linux/types.h>
 
 #define BTF_ELF_SEC ".BTF"
 
@@ -14,9 +14,9 @@ typedef int (*btf_print_fn_t)(const char *, ...)
         __attribute__((format(printf, 1, 2)));
 
 void btf__free(struct btf *btf);
-struct btf *btf__new(uint8_t *data, uint32_t size, btf_print_fn_t err_log);
-int32_t btf__find_by_name(const struct btf *btf, const char *type_name);
-int64_t btf__resolve_size(const struct btf *btf, uint32_t type_id);
+struct btf *btf__new(__u8 *data, __u32 size, btf_print_fn_t err_log);
+__s32 btf__find_by_name(const struct btf *btf, const char *type_name);
+__s64 btf__resolve_size(const struct btf *btf, __u32 type_id);
 int btf__fd(const struct btf *btf);
 
 #endif
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index a1e96b5de5ff..6deb4fe4fffe 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -216,8 +216,8 @@ struct bpf_map {
         size_t offset;
         int map_ifindex;
         struct bpf_map_def def;
-        uint32_t btf_key_type_id;
-        uint32_t btf_value_type_id;
+        __u32 btf_key_type_id;
+        __u32 btf_value_type_id;
         void *priv;
         bpf_map_clear_priv_t clear_priv;
 };
@@ -1016,8 +1016,8 @@ static int bpf_map_find_btf_info(struct bpf_map *map, const struct btf *btf)
 {
         struct bpf_map_def *def = &map->def;
         const size_t max_name = 256;
-        int64_t key_size, value_size;
-        int32_t key_id, value_id;
+        __s64 key_size, value_size;
+        __s32 key_id, value_id;
         char name[max_name];
 
         /* Find key type by name from BTF */
@@ -2089,12 +2089,12 @@ const char *bpf_map__name(struct bpf_map *map)
         return map ? map->name : NULL;
 }
 
-uint32_t bpf_map__btf_key_type_id(const struct bpf_map *map)
+__u32 bpf_map__btf_key_type_id(const struct bpf_map *map)
 {
         return map ? map->btf_key_type_id : 0;
 }
 
-uint32_t bpf_map__btf_value_type_id(const struct bpf_map *map)
+__u32 bpf_map__btf_value_type_id(const struct bpf_map *map)
 {
         return map ? map->btf_value_type_id : 0;
 }
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 09976531aa74..b33ae02f7d0e 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -244,8 +244,8 @@ bpf_map__next(struct bpf_map *map, struct bpf_object *obj);
 int bpf_map__fd(struct bpf_map *map);
 const struct bpf_map_def *bpf_map__def(struct bpf_map *map);
 const char *bpf_map__name(struct bpf_map *map);
-uint32_t bpf_map__btf_key_type_id(const struct bpf_map *map);
-uint32_t bpf_map__btf_value_type_id(const struct bpf_map *map);
+__u32 bpf_map__btf_key_type_id(const struct bpf_map *map);
+__u32 bpf_map__btf_value_type_id(const struct bpf_map *map);
 
 typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
 int bpf_map__set_priv(struct bpf_map *map, void *priv,