Add loong64 port

distdir_deps.bzl

@@ -21,10 +21,9 @@ DIST_DEPS = {
     ########################################
     "platforms": {
         "archive": "platforms-0.0.4.tar.gz",
-        "sha256": "079945598e4b6cc075846f7fd6a9d0857c33a7afc0de868c2ccb96405225135d",
+        "sha256": "26f3b41e791c6e9f4955ebaebc77d8960d8a359ef2d90b152cc09c75b73b680c",
         "urls": [
-            "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.4/platforms-0.0.4.tar.gz",
-            "https://github.com/bazelbuild/platforms/releases/download/0.0.4/platforms-0.0.4.tar.gz",
+            "https://github.com/Loongson-Cloud-Community/platforms/releases/download/0.0.4/platforms-0.0.4.tar.gz",
         ],
         "used_in": [
             "additional_distfiles",

src/conditions/BUILD

@@ -84,6 +84,15 @@ config_setting(
     visibility = ["//visibility:public"],
 )
 
+config_setting(
+    name = "linux_loongarch64",
+    constraint_values = [
+        "@platforms//os:linux",
+        "@platforms//cpu:loongarch64",
+    ],
+    visibility = ["//visibility:public"],
+)
+
 config_setting(
     name = "linux_x86_64",
     constraint_values = [

src/conditions/BUILD.tools

@@ -69,6 +69,15 @@ config_setting(
     visibility = ["//visibility:public"],
 )
 
+config_setting(
+    name = "linux_loongarch64",
+    constraint_values = [
+        "@platforms//os:linux",
+        "@platforms//cpu:loongarch64",
+    ],
+    visibility = ["//visibility:public"],
+)
+
 config_setting(
     name = "linux_x86_64",
     constraint_values = [

src/main/java/com/google/devtools/build/lib/analysis/config/AutoCpuConverter.java

@@ -74,6 +74,8 @@ public String convert(String input) throws OptionsParsingException {
               return "mips64";
             case RISCV64:
               return "riscv64";
+            case LOONGARCH64:
+              return "loongarch64";
             default:
               return "unknown";
           }
@@ -118,6 +120,8 @@ public static Pair<CPU, OS> reverse(String input) {
         return Pair.of(CPU.MIPS64, OS.LINUX);
       case "riscv64":
         return Pair.of(CPU.RISCV64, OS.LINUX);
+      case "loongarch64":
+        return Pair.of(CPU.LOONGARCH64, OS.LINUX);
       default:
         // fall through
     }

src/main/java/com/google/devtools/build/lib/bazel/repository/LocalConfigPlatformFunction.java

@@ -120,6 +120,8 @@ static String cpuToConstraint(CPU cpu) {
         return "@platforms//cpu:mips64";
       case RISCV64:
         return "@platforms//cpu:riscv64";
+      case LOONGARCH64:
+        return "@platforms//cpu:loongarch64";
       default:
         // Unknown, so skip it.
         return null;

src/main/java/com/google/devtools/build/lib/util/CPU.java

@@ -29,6 +29,7 @@ public enum CPU {
   S390X("s390x", ImmutableSet.of("s390x", "s390")),
   MIPS64("mips64", ImmutableSet.of("mips64el", "mips64")),
   RISCV64("riscv64", ImmutableSet.of("riscv64")),
+  LOONGARCH64("loongarch64", ImmutableSet.of("loongarch64")),
   UNKNOWN("unknown", ImmutableSet.<String>of());
 
   private final String canonicalName;

third_party/BUILD

@@ -565,6 +565,7 @@ UNNECESSARY_DYNAMIC_LIBRARIES = select({
     "//src/conditions:linux_aarch64": "*.so *.jnilib *.dll",
     "//src/conditions:linux_ppc": "*.so *.jnilib *.dll",
     "//src/conditions:linux_s390x": "*.so *.jnilib *.dll",
+    "//src/conditions:linux_loongarch64": "*.so *.jnilib *.dll",
     "//src/conditions:freebsd": "*.so *.jnilib *.dll",
     "//src/conditions:openbsd": "*.so *.jnilib *.dll",
     # Default is to play it safe -- better have a big binary than a slow binary
@@ -798,6 +799,11 @@ config_setting(
     values = {"host_cpu": "s390x"},
 )
 
+config_setting(
+    name = "loongarch64",
+    values = {"host_cpu": "loongarch64"},
+)
+
 config_setting(
     name = "ppc",
     values = {"host_cpu": "ppc"},

tools/cpp/BUILD.tools

@@ -108,6 +108,7 @@ cc_toolchain_suite(
         "ppc|compiler": ":cc-compiler-ppc",
         "mips64|compiler": ":cc-compiler-mips64",
         "riscv64|compiler": ":cc-compiler-riscv64",
+        "loongarch64|compiler": ":cc-compiler-loongarch64",
         "k8": ":cc-compiler-local",
         "piii": ":cc-compiler-local",
         "arm": ":cc-compiler-local",
@@ -117,6 +118,7 @@ cc_toolchain_suite(
         "ppc64": ":cc-compiler-local",
         "mips64": ":cc-compiler-local",
         "riscv64": ":cc-compiler-local",
+        "loongarch64": ":cc-compiler-local",
         "darwin": ":cc-compiler-darwin",
         "freebsd": ":cc-compiler-freebsd",
         "armeabi-v7a": ":cc-compiler-armeabi-v7a",
@@ -214,6 +216,33 @@ toolchain(
     toolchain_type = ":toolchain_type",
 )
 
+cc_toolchain(
+    name = "cc-compiler-loongarch64",
+    all_files = ":empty",
+    ar_files = ":empty",
+    as_files = ":empty",
+    compiler_files = ":empty",
+    dwp_files = ":empty",
+    linker_files = ":empty",
+    objcopy_files = ":empty",
+    strip_files = ":empty",
+    supports_param_files = 1,
+    toolchain_config = ":local_linux",
+    toolchain_identifier = "local_linux",
+)
+
+toolchain(
+    name = "cc-toolchain-loongarch64",
+    exec_compatible_with = [
+        "@platforms//cpu:loongarch64",
+    ],
+    target_compatible_with = [
+        "@platforms//cpu:loongarch64",
+    ],
+    toolchain = ":cc-compiler-loongarch64",
+    toolchain_type = ":toolchain_type",
+)
+
 cc_toolchain(
     name = "cc-compiler-mips64",
     all_files = ":empty",

tools/cpp/lib_cc_configure.bzl

@@ -202,6 +202,8 @@ def get_cpu_value(repository_ctx):
         return "mips64"
     if arch in ["riscv64"]:
         return "riscv64"
+    if arch in ["loongarch64"]:
+        return "loongarch64"
     if arch in ["arm", "armv7l"]:
         return "arm"
     if arch in ["aarch64"]:

tools/jdk/BUILD.tools

@@ -96,6 +96,7 @@ cc_library(
         "//src/conditions:linux_mips64": [":jni_md_header-linux"],
         "//src/conditions:linux_riscv64": [":jni_md_header-linux"],
         "//src/conditions:linux_x86_64": [":jni_md_header-linux"],
+        "//src/conditions:linux_loongarch64": [":jni_md_header-linux"],
         "//src/conditions:darwin": [":jni_md_header-darwin"],
         "//src/conditions:freebsd": [":jni_md_header-freebsd"],
         "//src/conditions:openbsd": [":jni_md_header-openbsd"],
@@ -109,6 +110,7 @@ cc_library(
         "//src/conditions:linux_mips64": [":include/linux"],
         "//src/conditions:linux_riscv64": [":include/linux"],
         "//src/conditions:linux_x86_64": ["include/linux"],
+        "//src/conditions:linux_loongarch64": ["include/linux"],
         "//src/conditions:darwin": ["include/darwin"],
         "//src/conditions:freebsd": ["include/freebsd"],
         "//src/conditions:openbsd": ["include/openbsd"],

tools/platforms/BUILD

@@ -63,6 +63,11 @@ alias(
     actual = "@platforms//cpu:riscv64",
 )
 
+alias(
+    name = "loongarch64",
+    actual = "@platforms//cpu:loongarch64",
+)
+
 alias(
     name = "os",
     actual = "@platforms//os:os",
@@ -121,6 +126,7 @@ platform(
         "@platforms//cpu:s390x",
         "@platforms//cpu:mips64",
         "@platforms//cpu:riscv64",
+        "@platforms//cpu:loongarch64",
     ],
     host_platform = True,
     os_constraints = [
@@ -145,6 +151,7 @@ platform(
         "@platforms//cpu:s390x",
         "@platforms//cpu:mips64",
         "@platforms//cpu:riscv64",
+        "@platforms//cpu:loongarch64",
     ],
     os_constraints = [
         "@platforms//os:osx",

tools/platforms/BUILD.tools

@@ -51,6 +51,11 @@ alias(
     actual = "@platforms//cpu:riscv64",
 )
 
+alias(
+    name = "loongarch64",
+    actual = "@platforms//cpu:loongarch64",
+)
+
 alias(
     name = "os",
     actual = "@platforms//os:os",
@@ -109,6 +114,7 @@ platform(
         "@platforms//cpu:s390x",
         "@platforms//cpu:mips64",
         "@platforms//cpu:riscv64",
+        "@platforms//cpu:loongarch64",
     ],
     host_platform = True,
     os_constraints = [
@@ -133,6 +139,7 @@ platform(
         "@platforms//cpu:s390x",
         "@platforms//cpu:mips64",
         "@platforms//cpu:riscv64",
+        "@platforms//cpu:loongarch64",
     ],
     os_constraints = [
         "@platforms//os:osx",