chore: update build.rs to support arm target

build.rs

@@ -177,24 +177,27 @@ fn build_v8() {
       gn_args.push(arg.to_string());
     }
   }
+  // cross-compilation setup
+  if target_arch == "aarch64" {
+    gn_args.push(r#"target_cpu="arm64""#.to_string());
+    gn_args.push("use_sysroot=true".to_string());
+    maybe_install_sysroot("arm64");
+    maybe_install_sysroot("amd64");
+  }
+  if target_arch == "arm"{
+    gn_args.push(r#"target_cpu="arm""#.to_string());
+    gn_args.push(r#"v8_target_cpu="arm""#.to_string());
+    gn_args.push("use_sysroot=true".to_string());
+    maybe_install_sysroot("i386");
+    maybe_install_sysroot("arm");
+  }
 
   let target_triple = env::var("TARGET").unwrap();
   // check if the target triple describes a non-native environment
   if target_triple != env::var("HOST").unwrap() {
-    // cross-compilation setup
-    if target_triple == "aarch64-unknown-linux-gnu"
-      || target_triple == "aarch64-linux-android"
-    {
-      gn_args.push(r#"target_cpu="arm64""#.to_string());
-      gn_args.push("use_sysroot=true".to_string());
-      maybe_install_sysroot("arm64");
-      maybe_install_sysroot("amd64");
-    };
-
     if target_triple == "aarch64-linux-android" {
       gn_args.push(r#"v8_target_cpu="arm64""#.to_string());
       gn_args.push(r#"target_os="android""#.to_string());
-
       gn_args.push("treat_warnings_as_errors=false".to_string());
 
       // NDK 23 and above removes libgcc entirely.