diff --git a/src/go/build/syslist.go b/src/go/build/syslist.go
index 1275f7c986..60ac5511bd 100644
--- a/src/go/build/syslist.go
+++ b/src/go/build/syslist.go
@@ -8,4 +8,4 @@ package build
 // Do not remove from this list, as these are used for go/build filename matching.
 
 const goosList = "aix android darwin dragonfly freebsd hurd illumos ios js linux nacl netbsd openbsd plan9 solaris windows zos "
-const goarchList = "386 amd64 amd64p32 arm armbe arm64 arm64be ppc64 ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc riscv riscv64 s390 s390x sparc sparc64 wasm "
+const goarchList = "386 amd64 amd64p32 arm armbe arm64 arm64be ppc64 ppc64le loong64 mips mipsle mips64 mips64le mips64p32 mips64p32le ppc riscv riscv64 s390 s390x sparc sparc64 wasm "
diff --git a/src/runtime/internal/sys/zgoarch_386.go b/src/runtime/internal/sys/zgoarch_386.go
index 98a2401bfe..5b189e7e73 100644
--- a/src/runtime/internal/sys/zgoarch_386.go
+++ b/src/runtime/internal/sys/zgoarch_386.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_amd64.go b/src/runtime/internal/sys/zgoarch_amd64.go
index d8faa5c786..312977d079 100644
--- a/src/runtime/internal/sys/zgoarch_amd64.go
+++ b/src/runtime/internal/sys/zgoarch_amd64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm.go b/src/runtime/internal/sys/zgoarch_arm.go
index b64a69c9b4..5781870324 100644
--- a/src/runtime/internal/sys/zgoarch_arm.go
+++ b/src/runtime/internal/sys/zgoarch_arm.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm64.go b/src/runtime/internal/sys/zgoarch_arm64.go
index de6f85347b..f72a1f2161 100644
--- a/src/runtime/internal/sys/zgoarch_arm64.go
+++ b/src/runtime/internal/sys/zgoarch_arm64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 1
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_arm64be.go b/src/runtime/internal/sys/zgoarch_arm64be.go
index b762bb069f..e805646058 100644
--- a/src/runtime/internal/sys/zgoarch_arm64be.go
+++ b/src/runtime/internal/sys/zgoarch_arm64be.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 1
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_armbe.go b/src/runtime/internal/sys/zgoarch_armbe.go
index e5297e4b16..d8d4e56d9a 100644
--- a/src/runtime/internal/sys/zgoarch_armbe.go
+++ b/src/runtime/internal/sys/zgoarch_armbe.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_loong64.go b/src/runtime/internal/sys/zgoarch_loong64.go
new file mode 100644
index 0000000000..6f35eb44a3
--- /dev/null
+++ b/src/runtime/internal/sys/zgoarch_loong64.go
@@ -0,0 +1,33 @@
+// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.
+
+//go:build loong64
+// +build loong64
+
+package sys
+
+const GOARCH = `loong64`
+
+const Goarch386 = 0
+const GoarchAmd64 = 0
+const GoarchAmd64p32 = 0
+const GoarchArm = 0
+const GoarchArmbe = 0
+const GoarchArm64 = 0
+const GoarchArm64be = 0
+const GoarchPpc64 = 0
+const GoarchPpc64le = 0
+const GoarchLoong64 = 1
+const GoarchMips = 0
+const GoarchMipsle = 0
+const GoarchMips64 = 0
+const GoarchMips64le = 0
+const GoarchMips64p32 = 0
+const GoarchMips64p32le = 0
+const GoarchPpc = 0
+const GoarchRiscv = 0
+const GoarchRiscv64 = 0
+const GoarchS390 = 0
+const GoarchS390x = 0
+const GoarchSparc = 0
+const GoarchSparc64 = 0
+const GoarchWasm = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips.go b/src/runtime/internal/sys/zgoarch_mips.go
index b5f4ed390c..bd58a92a0e 100644
--- a/src/runtime/internal/sys/zgoarch_mips.go
+++ b/src/runtime/internal/sys/zgoarch_mips.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 1
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64.go b/src/runtime/internal/sys/zgoarch_mips64.go
index 73777cceb2..8e4a3dcd52 100644
--- a/src/runtime/internal/sys/zgoarch_mips64.go
+++ b/src/runtime/internal/sys/zgoarch_mips64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 1
diff --git a/src/runtime/internal/sys/zgoarch_mips64le.go b/src/runtime/internal/sys/zgoarch_mips64le.go
index 0c81c36c09..d8e00339ea 100644
--- a/src/runtime/internal/sys/zgoarch_mips64le.go
+++ b/src/runtime/internal/sys/zgoarch_mips64le.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64p32.go b/src/runtime/internal/sys/zgoarch_mips64p32.go
index d63ce27d24..8549cc0ba3 100644
--- a/src/runtime/internal/sys/zgoarch_mips64p32.go
+++ b/src/runtime/internal/sys/zgoarch_mips64p32.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_mips64p32le.go b/src/runtime/internal/sys/zgoarch_mips64p32le.go
index 2d577890b2..667b6fe514 100644
--- a/src/runtime/internal/sys/zgoarch_mips64p32le.go
+++ b/src/runtime/internal/sys/zgoarch_mips64p32le.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_mipsle.go b/src/runtime/internal/sys/zgoarch_mipsle.go
index 8af919d03a..8bedb2bb90 100644
--- a/src/runtime/internal/sys/zgoarch_mipsle.go
+++ b/src/runtime/internal/sys/zgoarch_mipsle.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 1
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc.go b/src/runtime/internal/sys/zgoarch_ppc.go
index f6f12a5ddc..fe2196a327 100644
--- a/src/runtime/internal/sys/zgoarch_ppc.go
+++ b/src/runtime/internal/sys/zgoarch_ppc.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc64.go b/src/runtime/internal/sys/zgoarch_ppc64.go
index a8379601f4..bd7cc43de3 100644
--- a/src/runtime/internal/sys/zgoarch_ppc64.go
+++ b/src/runtime/internal/sys/zgoarch_ppc64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 1
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_ppc64le.go b/src/runtime/internal/sys/zgoarch_ppc64le.go
index f2ec5dcba7..e101892401 100644
--- a/src/runtime/internal/sys/zgoarch_ppc64le.go
+++ b/src/runtime/internal/sys/zgoarch_ppc64le.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 1
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_riscv.go b/src/runtime/internal/sys/zgoarch_riscv.go
index 83a3312f5f..559f86071a 100644
--- a/src/runtime/internal/sys/zgoarch_riscv.go
+++ b/src/runtime/internal/sys/zgoarch_riscv.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_riscv64.go b/src/runtime/internal/sys/zgoarch_riscv64.go
index 1dfcc84997..8485a94b3d 100644
--- a/src/runtime/internal/sys/zgoarch_riscv64.go
+++ b/src/runtime/internal/sys/zgoarch_riscv64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_s390.go b/src/runtime/internal/sys/zgoarch_s390.go
index 91aba5a0f6..4c4569e376 100644
--- a/src/runtime/internal/sys/zgoarch_s390.go
+++ b/src/runtime/internal/sys/zgoarch_s390.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_s390x.go b/src/runtime/internal/sys/zgoarch_s390x.go
index edce50234e..e50d2edbb5 100644
--- a/src/runtime/internal/sys/zgoarch_s390x.go
+++ b/src/runtime/internal/sys/zgoarch_s390x.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_sparc.go b/src/runtime/internal/sys/zgoarch_sparc.go
index 5ae9560ab0..0d08752c7b 100644
--- a/src/runtime/internal/sys/zgoarch_sparc.go
+++ b/src/runtime/internal/sys/zgoarch_sparc.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_sparc64.go b/src/runtime/internal/sys/zgoarch_sparc64.go
index e2a0134aff..ba405bbf35 100644
--- a/src/runtime/internal/sys/zgoarch_sparc64.go
+++ b/src/runtime/internal/sys/zgoarch_sparc64.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0
diff --git a/src/runtime/internal/sys/zgoarch_wasm.go b/src/runtime/internal/sys/zgoarch_wasm.go
index 52e85dea37..7c3e5afd1e 100644
--- a/src/runtime/internal/sys/zgoarch_wasm.go
+++ b/src/runtime/internal/sys/zgoarch_wasm.go
@@ -16,6 +16,7 @@ const GoarchArm64 = 0
 const GoarchArm64be = 0
 const GoarchPpc64 = 0
 const GoarchPpc64le = 0
+const GoarchLoong64 = 0
 const GoarchMips = 0
 const GoarchMipsle = 0
 const GoarchMips64 = 0