linux/aarch64: make mcontext_t.__reserved pub

jstarks · jstarks · commit 197ebc5253d0 · 2025-11-17T19:34:44.000Z
The `mcontext_t.__reserved` field is documented to contain extra
context, such as FP state and the ESR register.
diff --git a/src/unix/linux_like/android/b64/aarch64/mod.rs b/src/unix/linux_like/android/b64/aarch64/mod.rs
@@ -74,7 +74,8 @@ s! {
         pub sp: c_ulonglong,
         pub pc: c_ulonglong,
         pub pstate: c_ulonglong,
-        __reserved: [u64; 512],
+        _padding: u64,
+        pub __reserved: [u8; 4096],
     }
 
     pub struct user_fpsimd_struct {
diff --git a/src/unix/linux_like/linux/gnu/b64/aarch64/mod.rs b/src/unix/linux_like/linux/gnu/b64/aarch64/mod.rs
@@ -219,7 +219,8 @@ s! {
         pub sp: c_ulonglong,
         pub pc: c_ulonglong,
         pub pstate: c_ulonglong,
-        __reserved: [u64; 512],
+        _padding: u64,
+        pub __reserved: [u8; 4096],
     }
 
     pub struct user_fpsimd_struct {
diff --git a/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs b/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs
@@ -103,7 +103,8 @@ s! {
         pub sp: c_ulong,
         pub pc: c_ulong,
         pub pstate: c_ulong,
-        __reserved: [u64; 512],
+        _padding: u64,
+        pub __reserved: [u8; 4096],
     }
 
     #[repr(align(8))]

Original file line number	Diff line number	Diff line change
`@@ -74,7 +74,8 @@ s! {`
`74`	`74`	`pub sp: c_ulonglong,`
`75`	`75`	`pub pc: c_ulonglong,`
`76`	`76`	`pub pstate: c_ulonglong,`
`77`		`- __reserved: [u64; 512],`
	`77`	`+ _padding: u64,`
	`78`	`+ pub __reserved: [u8; 4096],`
`78`	`79`	`}`
`79`	`80`
`80`	`81`	`pub struct user_fpsimd_struct {`
Original file line number	Diff line number	Diff line change
`@@ -219,7 +219,8 @@ s! {`
`219`	`219`	`pub sp: c_ulonglong,`
`220`	`220`	`pub pc: c_ulonglong,`
`221`	`221`	`pub pstate: c_ulonglong,`
`222`		`- __reserved: [u64; 512],`
	`222`	`+ _padding: u64,`
	`223`	`+ pub __reserved: [u8; 4096],`
`223`	`224`	`}`
`224`	`225`
`225`	`226`	`pub struct user_fpsimd_struct {`