From a5e23115bdd3b4655d2bad6076c69c90eec6f12d Mon Sep 17 00:00:00 2001
From: zhaixiaojuan <zhaixiaojuan@loongson.cn>
Date: Wed, 6 Jul 2022 18:29:04 +0800
Subject: [PATCH] library/std: Add support for loongarch64

---
 library/std/src/env.rs              | 1 +
 library/std/src/os/linux/raw.rs     | 1 +
 library/std/src/sys/common/alloc.rs | 1 +
 3 files changed, 3 insertions(+)

diff --git a/library/std/src/env.rs b/library/std/src/env.rs
index 183f9ab3b08..3014fe6e2fc 100644
--- a/library/std/src/env.rs
+++ b/library/std/src/env.rs
@@ -895,6 +895,7 @@ pub mod consts {
     /// - x86_64
     /// - arm
     /// - aarch64
+    /// - loongarch64
     /// - m68k
     /// - mips
     /// - mips64
diff --git a/library/std/src/os/linux/raw.rs b/library/std/src/os/linux/raw.rs
index f46028c3a96..c55ca8ba26e 100644
--- a/library/std/src/os/linux/raw.rs
+++ b/library/std/src/os/linux/raw.rs
@@ -231,6 +231,7 @@ mod arch {
 }
 
 #[cfg(any(
+    target_arch = "loongarch64",
     target_arch = "mips64",
     target_arch = "s390x",
     target_arch = "sparc64",
diff --git a/library/std/src/sys/common/alloc.rs b/library/std/src/sys/common/alloc.rs
index 403a5e627f1..a5fcbdf39c6 100644
--- a/library/std/src/sys/common/alloc.rs
+++ b/library/std/src/sys/common/alloc.rs
@@ -22,6 +22,7 @@ pub const MIN_ALIGN: usize = 8;
 #[cfg(any(
     target_arch = "x86_64",
     target_arch = "aarch64",
+    target_arch = "loongarch64",
     target_arch = "mips64",
     target_arch = "s390x",
     target_arch = "sparc64",