Add loongarch64 support (#1149)

include/vcpkg/base/cofffilereader.h

@@ -324,6 +324,8 @@ namespace vcpkg
         THUMB = 0x1c2,         // Thumb
         WCEMIPSV2 = 0x169,     // MIPS little-endian WCE v2
         LLVM_BITCODE = 0x4342, // LLVM bitcode https://www.llvm.org/docs/BitCodeFormat.html#llvm-ir-magic-number
+        LOONGARCH32 = 0x6232,  // LoongArch 32-bit processor family
+        LOONGARCH64 = 0x6264,  // LoongArch 64-bit processor family
     };
 
     enum class PEType

include/vcpkg/base/fwd/system.h

@@ -13,5 +13,7 @@ namespace vcpkg
         PPC64LE,
         RISCV32,
         RISCV64,
+        LOONGARCH32,
+        LOONGARCH64,
     };
 }

src/vcpkg/base/system.cpp

@@ -155,6 +155,8 @@ namespace vcpkg
         if (Strings::case_insensitive_ascii_equals(arch, "ppc64le")) return CPUArchitecture::PPC64LE;
         if (Strings::case_insensitive_ascii_equals(arch, "riscv32")) return CPUArchitecture::RISCV32;
         if (Strings::case_insensitive_ascii_equals(arch, "riscv64")) return CPUArchitecture::RISCV64;
+        if (Strings::case_insensitive_ascii_equals(arch, "loongarch32")) return CPUArchitecture::LOONGARCH32;
+        if (Strings::case_insensitive_ascii_equals(arch, "loongarch64")) return CPUArchitecture::LOONGARCH64;
 
         return nullopt;
     }
@@ -172,6 +174,8 @@ namespace vcpkg
             case CPUArchitecture::PPC64LE: return "ppc64le";
             case CPUArchitecture::RISCV32: return "riscv32";
             case CPUArchitecture::RISCV64: return "riscv64";
+            case CPUArchitecture::LOONGARCH32: return "loongarch32";
+            case CPUArchitecture::LOONGARCH64: return "loongarch64";
             default: Checks::exit_with_message(VCPKG_LINE_INFO, "unexpected vcpkg::CPUArchitecture");
         }
     }
@@ -269,6 +273,10 @@ namespace vcpkg
         return CPUArchitecture::RISCV32;
 #elif defined(__riscv) && defined(__riscv_xlen) && (__riscv_xlen == 64)
         return CPUArchitecture::RISCV64;
+#elif defined(__loongarch32) || defined(__loongarch__) && (__loongarch_grlen == 32)
+        return CPUArchitecture::LOONGARCH32;
+#elif defined(__loongarch64) || defined(__loongarch__) && (__loongarch_grlen == 64)
+        return CPUArchitecture::LOONGARCH64;
 #else // choose architecture
 #error "Unknown host architecture"
 #endif // choose architecture

src/vcpkg/postbuildlint.cpp

@@ -575,6 +575,8 @@ namespace vcpkg
             case MachineType::THUMB: return "thumb";
             case MachineType::WCEMIPSV2: return "mips-le-wce-v2";
             case MachineType::LLVM_BITCODE: return "llvm-bitcode";
+            case MachineType::LOONGARCH32: return "loongarch32";
+            case MachineType::LOONGARCH64: return "loongarch64";
             default: return fmt::format("unknown-{}", static_cast<uint16_t>(machine_type));
         }
     }

src/vcpkg/triplet.cpp

@@ -84,6 +84,14 @@ namespace vcpkg
         {
             return CPUArchitecture::RISCV64;
         }
+        if (Strings::starts_with(this->canonical_name(), "loongarch32-"))
+        {
+            return CPUArchitecture::LOONGARCH32;
+        }
+        if (Strings::starts_with(this->canonical_name(), "loongarch64-"))
+        {
+            return CPUArchitecture::LOONGARCH64;
+        }
 
         return nullopt;
     }