darwin: update mcontext_t definition for aarch64 to add neon state

3 files changed, 20 insertions, 5 deletions

diff --git a/lib/std/c/darwin.zig b/lib/std/c/darwin.zig
index 5f28191221..1901271b83 100644
--- a/lib/std/c/darwin.zig
+++ b/lib/std/c/darwin.zig
@@ -151,11 +151,7 @@ pub const ucontext_t = extern struct {
     __mcontext_data: mcontext_t,
 };
 
-pub const mcontext_t = extern struct {
-    es: arch_bits.exception_state,
-    ss: arch_bits.thread_state,
-    fs: arch_bits.float_state,
-};
+pub const mcontext_t = arch_bits.mcontext_t;
 
 extern "c" fn __error() *c_int;
 pub extern "c" fn NSVersionOfRunTimeLibrary(library_name: [*:0]const u8) u32;
diff --git a/lib/std/c/darwin/aarch64.zig b/lib/std/c/darwin/aarch64.zig
index 48b03363a1..d00b92af83 100644
--- a/lib/std/c/darwin/aarch64.zig
+++ b/lib/std/c/darwin/aarch64.zig
@@ -1,5 +1,12 @@
 // See C headers in
 // lib/libc/include/aarch64-macos.12-gnu/mach/arm/_structs.h
+// lib/libc/include/aarch64-macos.13-none/arm/_mcontext.h
+
+pub const mcontext_t = extern struct {
+    es: exception_state,
+    ss: thread_state,
+    ns: neon_state,
+};
 
 pub const exception_state = extern struct {
     far: u64, // Virtual Fault Address
@@ -17,6 +24,12 @@ pub const thread_state = extern struct {
     __pad: u32,
 };
 
+pub const neon_state = extern struct {
+    q: [32]u128,
+    fpsr: u32,
+    fpcr: u32,
+};
+
 pub const EXC_TYPES_COUNT = 14;
 pub const EXC_MASK_MACHINE = 0;
 
diff --git a/lib/std/c/darwin/x86_64.zig b/lib/std/c/darwin/x86_64.zig
index db94840d9d..7b66fb2e97 100644
--- a/lib/std/c/darwin/x86_64.zig
+++ b/lib/std/c/darwin/x86_64.zig
@@ -1,5 +1,11 @@
 const c = @import("../darwin.zig");
 
+pub const mcontext_t = extern struct {
+    es: exception_state,
+    ss: thread_state,
+    fs: float_state,
+};
+
 pub const exception_state = extern struct {
     trapno: u16,
     cpu: u16,