From 75dac389fb168159e0b049f72141f889b7215889 Mon Sep 17 00:00:00 2001
From: msizanoen1 <qtmlabs@protonmail.com>
Date: Sat, 23 Nov 2019 14:15:27 +0700
Subject: [PATCH] Add riscv64gc-unknown-linux-gnu target

---
 src/librustc_target/spec/mod.rs               |  1 +
 .../spec/riscv64gc_unknown_linux_gnu.rs       | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 src/librustc_target/spec/riscv64gc_unknown_linux_gnu.rs

diff --git a/src/librustc_target/spec/mod.rs b/src/librustc_target/spec/mod.rs
index 716aef056a35b..1a7cb943de76b 100644
--- a/src/librustc_target/spec/mod.rs
+++ b/src/librustc_target/spec/mod.rs
@@ -487,6 +487,7 @@ supported_targets! {
     ("riscv32imac-unknown-none-elf", riscv32imac_unknown_none_elf),
     ("riscv64imac-unknown-none-elf", riscv64imac_unknown_none_elf),
     ("riscv64gc-unknown-none-elf", riscv64gc_unknown_none_elf),
+    ("riscv64gc-unknown-linux-gnu", riscv64gc_unknown_linux_gnu),
 
     ("aarch64-unknown-none", aarch64_unknown_none),
     ("aarch64-unknown-none-softfloat", aarch64_unknown_none_softfloat),
diff --git a/src/librustc_target/spec/riscv64gc_unknown_linux_gnu.rs b/src/librustc_target/spec/riscv64gc_unknown_linux_gnu.rs
new file mode 100644
index 0000000000000..638e6770ebf8c
--- /dev/null
+++ b/src/librustc_target/spec/riscv64gc_unknown_linux_gnu.rs
@@ -0,0 +1,25 @@
+use crate::spec::{LinkerFlavor, Target, TargetOptions, TargetResult};
+
+pub fn target() -> TargetResult {
+    Ok(Target {
+        llvm_target: "riscv64-unknown-linux-gnu".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "64".to_string(),
+        target_c_int_width: "32".to_string(),
+        target_env: "gnu".to_string(),
+        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".to_string(),
+        arch: "riscv64".to_string(),
+        target_os: "linux".to_string(),
+        target_vendor: "unknown".to_string(),
+        linker_flavor: LinkerFlavor::Gcc,
+        options: TargetOptions {
+            abi_blacklist: super::riscv_base::abi_blacklist(),
+            code_model: Some("medium".to_string()),
+            cpu: "generic-rv64".to_string(),
+            features: "+m,+a,+f,+d,+c".to_string(),
+            llvm_abiname: "lp64d".to_string(),
+            max_atomic_width: Some(64),
+            ..super::linux_base::opts()
+        },
+    })
+}