--- /dev/null
+++ b/compiler/rustc_target/src/spec/x86_64_openwrt_linux_musl.rs
@@ -0,0 +1,25 @@
+use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target};
+
+pub fn target() -> Target {
+    let mut base = super::linux_musl_base::opts();
+    base.cpu = "x86-64".into();
+    base.max_atomic_width = Some(64);
+    base.pre_link_args.entry(LinkerFlavor::Gcc).or_default().push("-m64".into());
+    // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved
+    base.stack_probes = StackProbeType::Call;
+    base.static_position_independent_executables = true;
+    base.supported_sanitizers = SanitizerSet::ADDRESS
+        | SanitizerSet::CFI
+        | SanitizerSet::LEAK
+        | SanitizerSet::MEMORY
+        | SanitizerSet::THREAD;
+
+    Target {
+        llvm_target: "x86_64-unknown-linux-musl".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+            .into(),
+        arch: "x86_64".into(),
+        options: base,
+    }
+}
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -1020,6 +1020,7 @@
     ("armv7-openwrt-linux-muslgnueabi", armv7_openwrt_linux_muslgnueabi),
     ("armv7-openwrt-linux-muslgnueabihf", armv7_openwrt_linux_muslgnueabihf),
     ("powerpc64-openwrt-linux-musl", powerpc64_openwrt_linux_musl),
+    ("x86_64-openwrt-linux-musl", x86_64_openwrt_linux_musl),
 }

 /// Warnings encountered when parsing the target `json`.