runtime: fix export bpf api for eunomia-bpf repo

include/bpf-api.h

@@ -27,6 +27,7 @@ void bpf_buffer__free(struct bpf_buffer *);
 void bpf_object__close(struct bpf_object *object);
 int bpf_link__destroy(bpf_link *link);
 }
+
 /// @brief init libbpf callbacks
 void init_libbpf(void);
 struct wasm_bpf_program {
@@ -60,6 +61,6 @@ enum bpf_map_cmd {
 int bpf_map_operate(int fd, int cmd, void *key, void *value, void *next_key,
                     uint64_t flags);
 /// The main entry, argc and argv will be passed to the wasm module.
-int wasm_main(std::vector<uint8_t> wasm_module, int argc, char *argv[]);
+int wasm_main(unsigned char *buf, unsigned int size, int argc, char *argv[]);
 
 #endif

src/main.cpp

@@ -16,5 +16,5 @@ int main(int argc, char *argv[]) {
     std::ifstream file(argv[1]);
     std::vector<uint8_t> wasm_module((std::istreambuf_iterator<char>(file)),
                                      std::istreambuf_iterator<char>());
-    return wasm_main(wasm_module, argc - 1, argv + 1);
+    return wasm_main(wasm_module.data(), wasm_module.size(), argc - 1, argv + 1);
 }

src/wasm-bpf.cpp

@@ -269,7 +269,7 @@ int wasm_bpf_map_operate(wasm_exec_env_t exec_env, int fd, int cmd, void *key,
 }
 }
 
-int wasm_main(std::vector<uint8_t> wasm_module, int argc, char *argv[]) {
+int wasm_main(unsigned char *buf, unsigned int size, int argc, char *argv[]) {
     char error_buf[128];
     int exit_code = 0;
     char *wasm_path = NULL;
@@ -301,7 +301,7 @@ int wasm_main(std::vector<uint8_t> wasm_module, int argc, char *argv[]) {
         printf("Init runtime environment failed.\n");
         return -1;
     }
-    module = wasm_runtime_load(wasm_module.data(), (uint32_t)wasm_module.size(),
+    module = wasm_runtime_load(buf, size,
                                error_buf, sizeof(error_buf));
     if (!module) {
         printf("Load wasm module failed. error: %s\n", error_buf);