LoongArch64: initial the coredistools supporting LA64. (#367)

LoongArch64: initial the coredistools supporting LA64.

Author: shushanhf

build-coredistools.sh

@@ -33,6 +33,12 @@ case "$TargetOSArchitecture" in
         LLVMHostTriple=x86_64-linux-gnu
         ;;
 
+    linux-loongarch64)
+        CMakeCrossCompiling=OFF
+        LLVMHostTriple=loongarch64-linux-gnu
+        LLVMTargetsToBuild="LoongArch"
+        ;;
+
     osx-arm64)
         CMakeCrossCompiling=ON
         CMakeOSXArchitectures=arm64

src/coredistools/coredistools.cpp

@@ -284,6 +284,9 @@ bool CorDisasm::setTarget() {
     case Triple::aarch64:
       TheTargetArch = Target_Arm64;
       break;
+    case Triple::loongarch64:
+      TheTargetArch = Target_LoongArch64;
+      break;
     default:
       Print->Error("Unsupported Architecture: %s\n",
                    Triple::getArchTypeName(TheTriple->getArch()));
@@ -304,6 +307,9 @@ bool CorDisasm::setTarget() {
   case Target_X64:
     TheTriple->setArch(Triple::x86_64);
     break;
+  case Target_LoongArch64:
+    TheTriple->setArch(Triple::loongarch64);
+    break;
   default:
     Print->Error("Unsupported Architecture: %s\n",
                  Triple::getArchTypeName(TheTriple->getArch()));

src/coredistools/coredistools.h

@@ -41,7 +41,8 @@ enum TargetArch {
     Target_X86,
     Target_X64,
     Target_Thumb,
-    Target_Arm64
+    Target_Arm64,
+    Target_LoongArch64
 };
 
 struct CorDisasm;