debug-engine: fix a few type mismatches

Note: on some targets, int32_t is a long.
for example, GCC shipped with the recent ESP-IDF has such a
configuration. [1]

[1] apache/nuttx#15755 (comment)

cf.
apache/nuttx#16022
https://docs.espressif.com/projects/esp-idf/en/stable/esp32/migration-guides/release-5.x/5.0/gcc.html#espressif-toolchain-changes

Author: yamt

core/iwasm/libraries/debug-engine/gdbserver.c

@@ -38,7 +38,7 @@ static const struct packet_handler_elem packet_handler_table[255] = {
 };
 
 WASMGDBServer *
-wasm_create_gdbserver(const char *host, int32 *port)
+wasm_create_gdbserver(const char *host, int *port)
 {
     bh_socket_t listen_fd = (bh_socket_t)-1;
     WASMGDBServer *server;

core/iwasm/libraries/debug-engine/gdbserver.h

@@ -51,7 +51,7 @@ typedef struct WASMGDBServer {
 } WASMGDBServer;
 
 WASMGDBServer *
-wasm_create_gdbserver(const char *host, int32 *port);
+wasm_create_gdbserver(const char *host, int *port);
 
 bool
 wasm_gdbserver_listen(WASMGDBServer *server);

core/iwasm/libraries/debug-engine/handler.c

@@ -205,7 +205,7 @@ handle_general_query(WASMGDBServer *server, char *payload)
         os_mutex_lock(&tmpbuf_lock);
         snprintf(tmpbuf, MAX_PACKET_SIZE,
                  "qXfer:libraries:read+;PacketSize=%" PRIx32 ";",
-                 MAX_PACKET_SIZE);
+                 (uint32)MAX_PACKET_SIZE);
         write_packet(server, tmpbuf);
         os_mutex_unlock(&tmpbuf_lock);
     }
@@ -384,7 +384,7 @@ send_thread_stop_status(WASMGDBServer *server, uint32 status, korp_tid tid)
 
     if (status == 0) {
         os_mutex_lock(&tmpbuf_lock);
-        snprintf(tmpbuf, MAX_PACKET_SIZE, "W%02x", status);
+        snprintf(tmpbuf, MAX_PACKET_SIZE, "W%02" PRIx32, status);
         write_packet(server, tmpbuf);
         os_mutex_unlock(&tmpbuf_lock);
         return;
@@ -400,8 +400,9 @@ send_thread_stop_status(WASMGDBServer *server, uint32 status, korp_tid tid)
 
     os_mutex_lock(&tmpbuf_lock);
     // TODO: how name a wasm thread?
-    len += snprintf(tmpbuf, MAX_PACKET_SIZE, "T%02xthread:%" PRIx64 ";name:%s;",
-                    gdb_status, (uint64)(uintptr_t)tid, "nobody");
+    len += snprintf(tmpbuf, MAX_PACKET_SIZE,
+                    "T%02" PRIx32 "thread:%" PRIx64 ";name:%s;", gdb_status,
+                    (uint64)(uintptr_t)tid, "nobody");
     if (tids_count > 0) {
         len += snprintf(tmpbuf + len, MAX_PACKET_SIZE - len, "threads:");
         while (i < tids_count) {
@@ -624,7 +625,8 @@ void
 handle_get_write_memory(WASMGDBServer *server, char *payload)
 {
     size_t hex_len;
-    int32 offset, act_len;
+    int offset;
+    int32 act_len;
     uint64 maddr, mlen;
     char *buff;
     bool ret;