Add support for Arm64EC to the Standard Library

6 files changed, 26 insertions, 23 deletions

diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs
index b27d0db4619..6e2d88c6b83 100644
--- a/library/core/src/hint.rs
+++ b/library/core/src/hint.rs
@@ -237,7 +237,7 @@ pub fn spin_loop() {
         crate::arch::riscv64::pause();
     }
 
-    #[cfg(target_arch = "aarch64")]
+    #[cfg(any(target_arch = "aarch64", target_arch = "arm64ec"))]
     {
         // SAFETY: the `cfg` attr ensures that we only execute this on aarch64 targets.
         unsafe { crate::arch::aarch64::__isb(crate::arch::aarch64::SY) };
diff --git a/library/panic_abort/src/lib.rs b/library/panic_abort/src/lib.rs
index a6d07fd1984..353de8c5c57 100644
--- a/library/panic_abort/src/lib.rs
+++ b/library/panic_abort/src/lib.rs
@@ -8,6 +8,7 @@
 #![doc(issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")]
 #![panic_runtime]
 #![allow(unused_features)]
+#![feature(asm_experimental_arch)]
 #![feature(core_intrinsics)]
 #![feature(panic_runtime)]
 #![feature(std_internals)]
@@ -78,7 +79,7 @@ pub unsafe fn __rust_start_panic(_payload: &mut dyn PanicPayload) -> u32 {
                         core::arch::asm!("int $$0x29", in("ecx") FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
                     } else if #[cfg(all(target_arch = "arm", target_feature = "thumb-mode"))] {
                         core::arch::asm!(".inst 0xDEFB", in("r0") FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
-                    } else if #[cfg(target_arch = "aarch64")] {
+                    } else if #[cfg(any(target_arch = "aarch64", target_arch = "arm64ec"))] {
                         core::arch::asm!("brk 0xF003", in("x0") FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
                     } else {
                         core::intrinsics::abort();
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 72ae38cfa20..9a741bed348 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -277,6 +277,7 @@
 #![feature(allocator_internals)]
 #![feature(allow_internal_unsafe)]
 #![feature(allow_internal_unstable)]
+#![feature(asm_experimental_arch)]
 #![feature(c_unwind)]
 #![feature(cfg_sanitizer_cfi)]
 #![feature(cfg_target_thread_local)]
diff --git a/library/std/src/sys/pal/common/alloc.rs b/library/std/src/sys/pal/common/alloc.rs
index 8cf9ef68047..598b6db71f5 100644
--- a/library/std/src/sys/pal/common/alloc.rs
+++ b/library/std/src/sys/pal/common/alloc.rs
@@ -23,6 +23,7 @@ pub const MIN_ALIGN: usize = 8;
 #[cfg(any(
     target_arch = "x86_64",
     target_arch = "aarch64",
+    target_arch = "arm64ec",
     target_arch = "loongarch64",
     target_arch = "mips64",
     target_arch = "mips64r6",
diff --git a/library/std/src/sys/pal/windows/c/windows_sys.rs b/library/std/src/sys/pal/windows/c/windows_sys.rs
index d180122d735..1da8871ae44 100644
--- a/library/std/src/sys/pal/windows/c/windows_sys.rs
+++ b/library/std/src/sys/pal/windows/c/windows_sys.rs
@@ -1,4 +1,4 @@
-// Bindings generated by `windows-bindgen` 0.55.0
+// Bindings generated by `windows-bindgen` 0.56.0
 
 #![allow(non_snake_case, non_upper_case_globals, non_camel_case_types, dead_code, clippy::all)]
 #[link(name = "advapi32")]
@@ -345,7 +345,7 @@ extern "system" {
 }
 #[link(name = "kernel32")]
 extern "system" {
-    pub fn GetSystemTimePreciseAsFileTime(lpsystemtimeasfiletime: *mut FILETIME) -> ();
+    pub fn GetSystemTimePreciseAsFileTime(lpsystemtimeasfiletime: *mut FILETIME);
 }
 #[link(name = "kernel32")]
 extern "system" {
@@ -1018,7 +1018,7 @@ impl Clone for CONTEXT_0_0 {
     }
 }
 #[repr(C)]
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 pub struct CONTEXT {
     pub P1Home: u64,
     pub P2Home: u64,
@@ -1067,30 +1067,30 @@ pub struct CONTEXT {
     pub LastExceptionToRip: u64,
     pub LastExceptionFromRip: u64,
 }
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for CONTEXT {}
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for CONTEXT {
     fn clone(&self) -> Self {
         *self
     }
 }
 #[repr(C)]
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 pub union CONTEXT_0 {
     pub FltSave: XSAVE_FORMAT,
     pub Anonymous: CONTEXT_0_0,
 }
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for CONTEXT_0 {}
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for CONTEXT_0 {
     fn clone(&self) -> Self {
         *self
     }
 }
 #[repr(C)]
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 pub struct CONTEXT_0_0 {
     pub Header: [M128A; 2],
     pub Legacy: [M128A; 8],
@@ -1111,9 +1111,9 @@ pub struct CONTEXT_0_0 {
     pub Xmm14: M128A,
     pub Xmm15: M128A,
 }
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for CONTEXT_0_0 {}
-#[cfg(target_arch = "x86_64")]
+#[cfg(any(target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for CONTEXT_0_0 {
     fn clone(&self) -> Self {
         *self
@@ -3339,7 +3339,7 @@ pub const FILE_WRITE_EA: FILE_ACCESS_RIGHTS = 16u32;
 pub const FILE_WRITE_THROUGH: NTCREATEFILE_CREATE_OPTIONS = 2u32;
 pub const FIONBIO: i32 = -2147195266i32;
 #[repr(C)]
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 pub struct FLOATING_SAVE_AREA {
     pub ControlWord: u32,
     pub StatusWord: u32,
@@ -3351,9 +3351,9 @@ pub struct FLOATING_SAVE_AREA {
     pub RegisterArea: [u8; 80],
     pub Cr0NpxState: u32,
 }
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for FLOATING_SAVE_AREA {}
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for FLOATING_SAVE_AREA {
     fn clone(&self) -> Self {
         *self
@@ -4106,7 +4106,7 @@ impl Clone for WSABUF {
     }
 }
 #[repr(C)]
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 pub struct WSADATA {
     pub wVersion: u16,
     pub wHighVersion: u16,
@@ -4116,9 +4116,9 @@ pub struct WSADATA {
     pub szDescription: [i8; 257],
     pub szSystemStatus: [i8; 129],
 }
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for WSADATA {}
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for WSADATA {
     fn clone(&self) -> Self {
         *self
@@ -4286,7 +4286,7 @@ pub const WSA_SECURE_HOST_NOT_FOUND: WSA_ERROR = 11032i32;
 pub const WSA_WAIT_EVENT_0: WSA_ERROR = 0i32;
 pub const WSA_WAIT_IO_COMPLETION: WSA_ERROR = 192i32;
 #[repr(C)]
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 pub struct XSAVE_FORMAT {
     pub ControlWord: u16,
     pub StatusWord: u16,
@@ -4305,9 +4305,9 @@ pub struct XSAVE_FORMAT {
     pub XmmRegisters: [M128A; 16],
     pub Reserved4: [u8; 96],
 }
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Copy for XSAVE_FORMAT {}
-#[cfg(any(target_arch = "aarch64", target_arch = "x86_64"))]
+#[cfg(any(target_arch = "aarch64", target_arch = "arm64ec", target_arch = "x86_64"))]
 impl Clone for XSAVE_FORMAT {
     fn clone(&self) -> Self {
         *self
diff --git a/library/std/src/sys/pal/windows/mod.rs b/library/std/src/sys/pal/windows/mod.rs
index a734c2bd4c7..b49585599cb 100644
--- a/library/std/src/sys/pal/windows/mod.rs
+++ b/library/std/src/sys/pal/windows/mod.rs
@@ -332,7 +332,7 @@ pub fn abort_internal() -> ! {
                 core::arch::asm!("int $$0x29", in("ecx") c::FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
             } else if #[cfg(all(target_arch = "arm", target_feature = "thumb-mode"))] {
                 core::arch::asm!(".inst 0xDEFB", in("r0") c::FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
-            } else if #[cfg(target_arch = "aarch64")] {
+            } else if #[cfg(any(target_arch = "aarch64", target_arch = "arm64ec"))] {
                 core::arch::asm!("brk 0xF003", in("x0") c::FAST_FAIL_FATAL_APP_EXIT, options(noreturn, nostack));
             } else {
                 core::intrinsics::abort();