5 files changed, 7 insertions, 0 deletions
diff --git a/library/std/src/env.rs b/library/std/src/env.rs
index f3122c2931d..f67f6034d34 100644
--- a/library/std/src/env.rs
+++ b/library/std/src/env.rs
@@ -894,6 +894,7 @@ pub mod consts {
     /// - aarch64
     /// - loongarch64
     /// - m68k
+    /// - csky
     /// - mips
     /// - mips64
     /// - powerpc
diff --git a/library/std/src/os/l4re/raw.rs b/library/std/src/os/l4re/raw.rs
index b3f7439f8cd..12c0293285a 100644
--- a/library/std/src/os/l4re/raw.rs
+++ b/library/std/src/os/l4re/raw.rs
@@ -27,6 +27,7 @@ pub use self::arch::{blkcnt_t, blksize_t, ino_t, nlink_t, off_t, stat, time_t};
 #[cfg(any(
     target_arch = "x86",
     target_arch = "m68k",
+    target_arch = "csky",
     target_arch = "powerpc",
     target_arch = "sparc",
     target_arch = "arm",
diff --git a/library/std/src/os/linux/raw.rs b/library/std/src/os/linux/raw.rs
index 7c55e92502f..a568f9b26ba 100644
--- a/library/std/src/os/linux/raw.rs
+++ b/library/std/src/os/linux/raw.rs
@@ -27,6 +27,7 @@ pub use self::arch::{blkcnt_t, blksize_t, ino_t, nlink_t, off_t, stat, time_t};
 #[cfg(any(
     target_arch = "x86",
     target_arch = "m68k",
+    target_arch = "csky",
     target_arch = "powerpc",
     target_arch = "sparc",
     target_arch = "arm",
diff --git a/library/std/src/sys/common/alloc.rs b/library/std/src/sys/common/alloc.rs
index 3ccea3ce0e3..d58aa6c27b8 100644
--- a/library/std/src/sys/common/alloc.rs
+++ b/library/std/src/sys/common/alloc.rs
@@ -8,6 +8,7 @@ use crate::ptr;
     target_arch = "x86",
     target_arch = "arm",
     target_arch = "m68k",
+    target_arch = "csky",
     target_arch = "mips",
     target_arch = "mips32r6",
     target_arch = "powerpc",
diff --git a/library/std/src/sys/personality/gcc.rs b/library/std/src/sys/personality/gcc.rs
index dc9636ac8c9..e477a0cd7ab 100644
--- a/library/std/src/sys/personality/gcc.rs
+++ b/library/std/src/sys/personality/gcc.rs
@@ -67,6 +67,9 @@ const UNWIND_DATA_REG: (i32, i32) = (0, 1); // D0, D1
 ))]
 const UNWIND_DATA_REG: (i32, i32) = (4, 5); // A0, A1
 
+#[cfg(target_arch = "csky")]
+const UNWIND_DATA_REG: (i32, i32) = (0, 1); // R0, R1
+
 #[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))]
 const UNWIND_DATA_REG: (i32, i32) = (3, 4); // R3, R4 / X3, X4