Clear some warnings and enable -Werror for NuttX (#1756)

Author: no1wudi

.github/workflows/compilation_on_nuttx.yml

@@ -55,12 +55,8 @@ jobs:
           "boards/sim/sim/sim/configs/nsh",
           # cortex-m0
           "boards/arm/rp2040/raspberrypi-pico/configs/nsh",
-          # cortex-m4
-          "boards/arm/stm32/stm32f4discovery/configs/nsh",
           # cortex-m7
           "boards/arm/stm32h7/nucleo-h743zi/configs/nsh",
-          # cortex-a9
-          "boards/arm/imx6/sabre-6quad/configs/nsh",
           # riscv32imac
           "boards/risc-v/qemu-rv/rv-virt/configs/nsh",
           # riscv64imac
@@ -123,4 +119,4 @@ jobs:
         run: |
           cd nuttx
           tools/configure.sh ${{ matrix.nuttx_board_config }}
-          make -j$(nproc)
+          make -j$(nproc) EXTRAFLAGS=-Werror

core/iwasm/common/wasm_application.c

@@ -555,7 +555,7 @@ execute_func(WASMModuleInstanceCommon *module_inst, const char *name,
             case VALUE_TYPE_FUNCREF:
             {
                 if (argv1[k] != NULL_REF)
-                    os_printf("%u:ref.func", argv1[k]);
+                    os_printf("%" PRIu32 ":ref.func", argv1[k]);
                 else
                     os_printf("func:ref.null");
                 k++;

core/iwasm/common/wasm_native.c

@@ -379,8 +379,13 @@ wasm_native_unregister_natives(const char *module_name,
 bool
 wasm_native_init()
 {
+#if WASM_ENABLE_SPEC_TEST != 0 || WASM_ENABLE_LIBC_BUILTIN != 0 \
+    || WASM_ENABLE_BASE_LIB != 0 || WASM_ENABLE_LIBC_EMCC != 0  \
+    || WASM_ENABLE_LIB_RATS != 0 || WASM_ENABLE_WASI_NN != 0    \
+    || WASM_ENABLE_APP_FRAMEWORK != 0
     NativeSymbol *native_symbols;
     uint32 n_native_symbols;
+#endif
 
 #if WASM_ENABLE_LIBC_BUILTIN != 0
     n_native_symbols = get_libc_builtin_export_apis(&native_symbols);
@@ -456,9 +461,14 @@ wasm_native_init()
 #endif
 
     return true;
+#if WASM_ENABLE_SPEC_TEST != 0 || WASM_ENABLE_LIBC_BUILTIN != 0 \
+    || WASM_ENABLE_BASE_LIB != 0 || WASM_ENABLE_LIBC_EMCC != 0  \
+    || WASM_ENABLE_LIB_RATS != 0 || WASM_ENABLE_WASI_NN != 0    \
+    || WASM_ENABLE_APP_FRAMEWORK != 0
 fail:
     wasm_native_destroy();
     return false;
+#endif
 }
 
 void

core/iwasm/interpreter/wasm_interp_classic.c

@@ -4094,8 +4094,9 @@ wasm_interp_call_wasm(WASMModuleInstance *module_inst, WASMExecEnv *exec_env,
     if (argc < function->param_cell_num) {
         char buf[128];
         snprintf(buf, sizeof(buf),
-                 "invalid argument count %u, must be no smaller than %u", argc,
-                 function->param_cell_num);
+                 "invalid argument count %" PRIu32
+                 ", must be no smaller than %u",
+                 argc, function->param_cell_num);
         wasm_set_exception(module_inst, buf);
         return;
     }

core/iwasm/libraries/libc-builtin/libc_builtin_wrapper.c

@@ -952,13 +952,13 @@ print_wrapper(wasm_exec_env_t exec_env)
 static void
 print_i32_wrapper(wasm_exec_env_t exec_env, int32 i32)
 {
-    os_printf("in specttest.print_i32(%d)\n", i32);
+    os_printf("in specttest.print_i32(%" PRId32 ")\n", i32);
 }
 
 static void
 print_i32_f32_wrapper(wasm_exec_env_t exec_env, int32 i32, float f32)
 {
-    os_printf("in specttest.print_i32_f32(%d, %f)\n", i32, f32);
+    os_printf("in specttest.print_i32_f32(%" PRId32 ", %f)\n", i32, f32);
 }
 
 static void

core/shared/utils/bh_log.c

@@ -102,6 +102,6 @@ void
 bh_log_proc_mem(const char *function, uint32 line)
 {
     char prompt[128] = { 0 };
-    snprintf(prompt, sizeof(prompt), "[MEM] %s(...) L%u", function, line);
+    snprintf(prompt, sizeof(prompt), "[MEM] %s(...) L%" PRIu32, function, line);
     return bh_print_proc_mem(prompt);
 }

product-mini/platforms/posix/main.c

@@ -78,7 +78,7 @@ print_help()
 }
 /* clang-format on */
 
-static void *
+static const void *
 app_instance_main(wasm_module_inst_t module_inst)
 {
     const char *exception;
@@ -89,7 +89,7 @@ app_instance_main(wasm_module_inst_t module_inst)
     return exception;
 }
 
-static void *
+static const void *
 app_instance_func(wasm_module_inst_t module_inst, const char *func_name)
 {
     wasm_application_execute_func(module_inst, func_name, app_argc - 1,