support packaging arthas-vmtool in 32-bit windows. (#2316)

arthas-vmtool/pom.xml

@@ -46,6 +46,30 @@
         </profile>
 
         <!-- windows -->
+        <profile>
+            <id>windows</id>
+            <activation>
+                <os>
+                    <family>windows</family>
+                </os>
+            </activation>
+            <properties>
+                <os_name>windows</os_name>
+            </properties>
+        </profile>
+        <profile>
+            <id>windows-32</id>
+            <activation>
+                <os>
+                    <family>windows</family>
+                    <arch>x86</arch>
+                </os>
+            </activation>
+            <properties>
+                <os_arch_option>-m32</os_arch_option>
+                <lib_name>libArthasJniLibrary-x86.dll</lib_name>
+            </properties>
+        </profile>
         <profile>
             <id>windows-amd64</id>
             <activation>
@@ -55,7 +79,6 @@
                 </os>
             </activation>
             <properties>
-                <os_name>windows</os_name>
                 <os_arch_option>-m64</os_arch_option>
                 <lib_name>libArthasJniLibrary-x64.dll</lib_name>
             </properties>

common/src/main/java/com/taobao/arthas/common/OSUtils.java

@@ -67,6 +67,10 @@ public class OSUtils {
 		return "aarch_64".equals(arch);
 	}
 
+	public static boolean isX86() {
+    	return "x86_32".equals(arch);
+	}
+
 	private static String normalizeArch(String value) {
 		value = normalize(value);
 		if (value.matches("^(x8664|amd64|ia32e|em64t|x64)$")) {

common/src/main/java/com/taobao/arthas/common/VmToolUtils.java

@@ -21,6 +21,9 @@ public class VmToolUtils {
         }
         if (OSUtils.isWindows()) {
             libName = "libArthasJniLibrary-x64.dll";
+            if (OSUtils.isX86()) {
+                libName = "libArthasJniLibrary-x86.dll";
+            }
         }
     }