4 files changed, 67 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/base/lynxos178.rs b/compiler/rustc_target/src/spec/base/lynxos178.rs
new file mode 100644
index 00000000000..b9434ff5faa
--- /dev/null
+++ b/compiler/rustc_target/src/spec/base/lynxos178.rs
@@ -0,0 +1,31 @@
+use std::borrow::Cow;
+
+use crate::spec::{
+    PanicStrategy, RelocModel, RelroLevel, SplitDebuginfo, StackProbeType, TargetOptions, cvs,
+};
+
+pub(crate) fn opts() -> TargetOptions {
+    TargetOptions {
+        os: "lynxos178".into(),
+        dynamic_linking: false,
+        families: cvs!["unix"],
+        position_independent_executables: false,
+        static_position_independent_executables: false,
+        relro_level: RelroLevel::Full,
+        has_thread_local: false,
+        crt_static_respected: true,
+        panic_strategy: PanicStrategy::Abort,
+        linker: Some(Cow::Borrowed("x86_64-lynx-lynxos178-gcc")),
+        no_default_libraries: false,
+        eh_frame_header: false, // GNU ld (GNU Binutils) 2.37.50 does not support --eh-frame-hdr
+        max_atomic_width: Some(64),
+        supported_split_debuginfo: Cow::Borrowed(&[
+            SplitDebuginfo::Packed,
+            SplitDebuginfo::Unpacked,
+            SplitDebuginfo::Off,
+        ]),
+        relocation_model: RelocModel::Static,
+        stack_probes: StackProbeType::Inline,
+        ..Default::default()
+    }
+}
diff --git a/compiler/rustc_target/src/spec/base/mod.rs b/compiler/rustc_target/src/spec/base/mod.rs
index 71b6528c2dd..b368d93f007 100644
--- a/compiler/rustc_target/src/spec/base/mod.rs
+++ b/compiler/rustc_target/src/spec/base/mod.rs
@@ -19,6 +19,7 @@ pub(crate) mod linux_musl;
 pub(crate) mod linux_ohos;
 pub(crate) mod linux_uclibc;
 pub(crate) mod linux_wasm;
+pub(crate) mod lynxos178;
 pub(crate) mod msvc;
 pub(crate) mod netbsd;
 pub(crate) mod nto_qnx;
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 64171fcc7ab..3c769dad630 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -2078,6 +2078,7 @@ supported_targets! {
     ("riscv32imafc-unknown-nuttx-elf", riscv32imafc_unknown_nuttx_elf),
     ("riscv64imac-unknown-nuttx-elf", riscv64imac_unknown_nuttx_elf),
     ("riscv64gc-unknown-nuttx-elf", riscv64gc_unknown_nuttx_elf),
+    ("x86_64-lynx-lynxos178", x86_64_lynx_lynxos178),
 
     ("x86_64-pc-cygwin", x86_64_pc_cygwin),
 }
diff --git a/compiler/rustc_target/src/spec/targets/x86_64_lynx_lynxos178.rs b/compiler/rustc_target/src/spec/targets/x86_64_lynx_lynxos178.rs
new file mode 100644
index 00000000000..654ae7c9c5b
--- /dev/null
+++ b/compiler/rustc_target/src/spec/targets/x86_64_lynx_lynxos178.rs
@@ -0,0 +1,34 @@
+use crate::spec::{SanitizerSet, StackProbeType, Target, base};
+
+pub(crate) fn target() -> Target {
+    let mut base = base::lynxos178::opts();
+    base.cpu = "x86-64".into();
+    base.plt_by_default = false;
+    base.max_atomic_width = Some(64);
+    base.stack_probes = StackProbeType::Inline;
+    base.static_position_independent_executables = false;
+    base.supported_sanitizers = SanitizerSet::ADDRESS
+        | SanitizerSet::CFI
+        | SanitizerSet::KCFI
+        | SanitizerSet::DATAFLOW
+        | SanitizerSet::LEAK
+        | SanitizerSet::MEMORY
+        | SanitizerSet::SAFESTACK
+        | SanitizerSet::THREAD;
+    base.supports_xray = true;
+
+    Target {
+        llvm_target: "x86_64-unknown-unknown-gnu".into(),
+        metadata: crate::spec::TargetMetadata {
+            description: Some("LynxOS-178".into()),
+            tier: Some(3),
+            host_tools: Some(false),
+            std: Some(false),
+        },
+        pointer_width: 64,
+        data_layout:
+            "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
+        arch: "x86_64".into(),
+        options: base,
+    }
+}