diff --git a/BUILD.gn b/BUILD.gn
index ed2293f13d408bb607565e55e2dd1dab73145156..bffca4ab4d991d8f23bcd8b17816e09ee386e536 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -17,10 +17,12 @@ if (defined(ohos_lite)) {  # is on lite Os for ipcamera
   lite_component("jerry_engine") {
     features = [
       "jerry-core",
-      "jerry-libm",
       "jerry-ext",
       "jerry-port/default:jerry-port-default",
     ]
+    if (ohos_kernel_type != "liteos_m") {
+      features += [ "jerry_libm" ]
+    }
   }
 } else {
   import("//build/ohos.gni")
diff --git a/jerry-core/BUILD.gn b/jerry-core/BUILD.gn
index 879cb6f4898b6ad27ec4315716d51362b69cf9f7..aff10c4040655ebf8274d69fadf50627214a09c4 100644
--- a/jerry-core/BUILD.gn
+++ b/jerry-core/BUILD.gn
@@ -214,27 +214,75 @@ jerry_core_includes = [
   "$core_path",
 ]
 
-jerry_core_defines = [
-  "JERRY_GLOBAL_HEAP_SIZE = (128)",
-  "JERRY_ERROR_MESSAGES = 1",
-  "JERRY_LINE_INFO = 1",
-  "JERRY_FUNCTION_NAME",
-  "JERRY_FUNCTION_BACKTRACE",
-  "JERRY_STACK_LIMIT = 0",
-]
+if (board_toolchain_type != "iccarm") {
+  jerry_core_defines = [
+    "JERRY_GLOBAL_HEAP_SIZE=(128)",
+    "JERRY_ERROR_MESSAGES=1",
+    "JERRY_LINE_INFO=1",
+    "JERRY_FUNCTION_NAME",
+    "JERRY_FUNCTION_BACKTRACE",
+    "JERRY_STACK_LIMIT=0",
+  ]
+} else {
+  jerry_core_sources += [
+    "api/external-context-helpers.c",
+    "api/generate-bytecode.c",
+    "api/jerryscript_adapter.c",
+  ]
+  config("jerry_core_config") {
+    cflags = [
+      "--diag_suppress",
+      "Pa089,Pe111,Pe188,Pe191,Pe546,Pe940",
+    ]
+    defines = [
+      "JERRY_FOR_IAR_CONFIG",
+      "JERRY_GC_LIMIT=(0)",
+      "JERRY_CPOINTER_32_BIT=0",
+      "JERRY_ERROR_MESSAGES=1",
+      "JERRY_EXTERNAL_CONTEXT=1",
+      "JERRY_PARSER=1",
+      "JERRY_LINE_INFO=1",
+      "JERRY_LOGGING=0",
+      "JERRY_DEBUGGER=0",
+      "JERRY_MEM_GC_BEFORE_EACH_ALLOC=0",
+      "JERRY_PARSER_DUMP_BYTE_CODE=0",
+      "JERRY_ES2015=0",
+      "JERRY_REGEXP_STRICT_MODE=0",
+      "JERRY_REGEXP_DUMP_BYTE_CODE=0",
+      "JERRY_SNAPSHOT_EXEC=1",
+      "JERRY_SNAPSHOT_SAVE=1",
+      "JERRY_SYSTEM_ALLOCATOR=0",
+      "JERRY_VALGRIND=0",
+      "JERRY_VM_EXEC_STOP=0",
+      "JERRY_STACK_LIMIT=(8)",
+      "JERRY_IAR_JUPITER",
+      "INPUTJS_BUFFER_SIZE=64*1024",
+      "SNAPSHOT_BUFFER_SIZE=48*1024",
+      "_BSD_SOURCE",
+    ]
+    include_dirs = jerry_core_includes
+    include_dirs += [
+      "$port_path",
+      "$port_path/default/include",
+      "//utils/native/lite/memory/include",
+    ]
+  }
+}
 
 if (ohos_kernel_type == "liteos_m") {
   lite_library("jerry-core_static") {
     target_type = "static_library"
-
     sources = jerry_core_sources
-    include_dirs = jerry_core_includes
-    defines = jerry_core_defines
+    if (board_toolchain_type == "iccarm") {
+      public_configs = [ ":jerry_core_config" ]
+    } else {
+      include_dirs = jerry_core_includes
+      defines = jerry_core_defines
+    }
   }
 } else {
   lite_library("jerry-core_shared") {
     target_type = "shared_library"
-
     sources = jerry_core_sources
     include_dirs = jerry_core_includes
     defines = jerry_core_defines
diff --git a/jerry-ext/BUILD.gn b/jerry-ext/BUILD.gn
index 86e634ed6388be62f6d45027742922472f3bda95..33b2ee84dabdb3251fa27c82d0758aa210453bdb 100644
--- a/jerry-ext/BUILD.gn
+++ b/jerry-ext/BUILD.gn
@@ -51,17 +51,59 @@ jerry_ext_include_dirs = [
   "${core_path}/include",
 ]
 
+if (board_toolchain_type == "iccarm") {
+  config("jerry_ext_config") {
+    cflags = [
+      "--diag_suppress",
+      "Pe940",
+    ]
+    defines = [
+      "JERRY_FOR_IAR_CONFIG",
+      "JERRY_GC_LIMIT=(0)",
+      "JERRY_CPOINTER_32_BIT=0",
+      "JERRY_ERROR_MESSAGES=1",
+      "JERRY_EXTERNAL_CONTEXT=1",
+      "JERRY_PARSER=1",
+      "JERRY_LINE_INFO=1",
+      "JERRY_LOGGING=0",
+      "JERRY_DEBUGGER=0",
+      "JERRY_MEM_GC_BEFORE_EACH_ALLOC=0",
+      "JERRY_PARSER_DUMP_BYTE_CODE=0",
+      "JERRY_ES2015=0",
+      "JERRY_REGEXP_STRICT_MODE=0",
+      "JERRY_REGEXP_DUMP_BYTE_CODE=0",
+      "JERRY_SNAPSHOT_EXEC=1",
+      "JERRY_SNAPSHOT_SAVE=1",
+      "JERRY_SYSTEM_ALLOCATOR=0",
+      "JERRY_VALGRIND=0",
+      "JERRY_VM_EXEC_STOP=0",
+      "JERRY_STACK_LIMIT=(8)",
+      "JERRY_IAR_JUPITER",
+      "INPUTJS_BUFFER_SIZE=64*1024",
+      "SNAPSHOT_BUFFER_SIZE=48*1024",
+    ]
+    include_dirs = jerry_ext_include_dirs
+    include_dirs += [
+      "${core_path}",
+      "${core_path}/jrt",
+      "//utils/native/lite/memory/include",
+    ]
+  }
+}
+
 if (ohos_kernel_type == "liteos_m") {
   lite_library("jerry-ext_static") {
     target_type = "static_library"
-
     sources = jerry_ext_sources
-    include_dirs = jerry_ext_include_dirs
+    if (board_toolchain_type == "iccarm") {
+      public_configs = [ ":jerry_ext_config" ]
+    } else {
+      include_dirs = jerry_ext_include_dirs
+    }
   }
 } else {
   lite_library("jerry-ext_shared") {
     target_type = "shared_library"
-
     sources = jerry_ext_sources
     include_dirs = jerry_ext_include_dirs
   }
diff --git a/jerry-libm/BUILD.gn b/jerry-libm/BUILD.gn
index 20d0800787ec06cb71d4ad62f680cac228d37d49..12efe17e9790f74b271a9ec5e0aed1f1f5f09e58 100644
--- a/jerry-libm/BUILD.gn
+++ b/jerry-libm/BUILD.gn
@@ -56,15 +56,26 @@ jerry_libm_sources = [
 
 jerry_libm_include_dirs = [ "include" ]
 
+config("jerry_libm_config") {
+  if (board_toolchain_type == "iccarm") {
+    cflags = [
+      "--diag_suppress",
+      "Pe039,Pa089,Pe222",
+    ]
+  }
+}
+
 if (ohos_kernel_type == "liteos_m") {
   lite_library("jerry-libm_static") {
     target_type = "static_library"
+    public_configs = [ ":jerry_libm_config" ]
     sources = jerry_libm_sources
     include_dirs = jerry_libm_include_dirs
   }
 } else {
   lite_library("jerry-libm_shared") {
     target_type = "shared_library"
+    public_configs = [ ":jerry_libm_config" ]
     sources = jerry_libm_sources
     include_dirs = jerry_libm_include_dirs
   }
diff --git a/jerry-port/default/BUILD.gn b/jerry-port/default/BUILD.gn
index 317d01038c912af3b5e6edca8d2691dad5a73c37..15e9430d21b048f4a6c39a3b5b13b2acc9996fb8 100644
--- a/jerry-port/default/BUILD.gn
+++ b/jerry-port/default/BUILD.gn
@@ -36,12 +36,71 @@ jerry_port_default_include_dirs = [
   "${core_path}/include",
 ]
 
+if (board_toolchain_type == "iccarm") {
+  config("jerry_port_default_config") {
+    cflags = [
+      "--diag_suppress",
+      "Pe111",
+    ]
+    defines = [
+      "JERRY_FOR_IAR_CONFIG",
+      "JERRY_GC_LIMIT=(0)",
+      "JERRY_CPOINTER_32_BIT=0",
+      "JERRY_ERROR_MESSAGES=1",
+      "JERRY_EXTERNAL_CONTEXT=1",
+      "JERRY_PARSER=1",
+      "JERRY_LINE_INFO=1",
+      "JERRY_LOGGING=0",
+      "JERRY_DEBUGGER=0",
+      "JERRY_MEM_GC_BEFORE_EACH_ALLOC=0",
+      "JERRY_PARSER_DUMP_BYTE_CODE=0",
+      "JERRY_ES2015=0",
+      "JERRY_REGEXP_STRICT_MODE=0",
+      "JERRY_REGEXP_DUMP_BYTE_CODE=0",
+      "JERRY_SNAPSHOT_EXEC=1",
+      "JERRY_SNAPSHOT_SAVE=1",
+      "JERRY_SYSTEM_ALLOCATOR=0",
+      "JERRY_VALGRIND=0",
+      "JERRY_VM_EXEC_STOP=0",
+      "JERRY_STACK_LIMIT=(8)",
+      "JERRY_IAR_JUPITER",
+      "INPUTJS_BUFFER_SIZE=64*1024",
+      "SNAPSHOT_BUFFER_SIZE=48*1024",
+    ]
+    include_dirs = jerry_port_default_include_dirs
+    include_dirs += [
+      "${core_path}",
+      "${core_path}/include",
+      "${core_path}/api",
+      "${core_path}/debugger",
+      "${core_path}/ecma/base",
+      "${core_path}/ecma/builtin-objects",
+      "${core_path}/ecma/builtin-objects/typedarray",
+      "${core_path}/ecma/operations",
+      "${core_path}/ext",
+      "${core_path}/jcontext",
+      "${core_path}/jmem",
+      "${core_path}/jrt",
+      "${core_path}/lit",
+      "${core_path}/parser",
+      "${core_path}/parser/js",
+      "${core_path}/parser/regexp",
+      "${core_path}/vm",
+      "${port_path}",
+      "//utils/native/lite/memory/include",
+    ]
+  }
+}
+
 if (ohos_kernel_type == "liteos_m") {
   lite_library("jerry-port-default_static") {
     target_type = "static_library"
-
     sources = jerry_port_default_sources
-    include_dirs = jerry_port_default_include_dirs
+    if (board_toolchain_type == "iccarm") {
+      public_configs = [ ":jerry_port_default_config" ]
+    } else {
+      include_dirs = jerry_port_default_include_dirs
+    }
   }
 } else {
   lite_library("jerry-port-default_shared") {