wip: vectors, panics and lsp fix

2026-04-22 09:32:01 +04:00
parent 7aa49b37f5
commit 97538aa098
11 changed files with 234 additions and 11 deletions
@@ -0,0 +1,74 @@
+@frozen
+public struct ExceptionContext {
+    public var x0: UInt64
+    public var x1: UInt64
+    public var x2: UInt64
+    public var x3: UInt64
+    public var x4: UInt64
+    public var x5: UInt64
+    public var x6: UInt64
+    public var x7: UInt64
+    public var x8: UInt64 
+    public var x9: UInt64
+    public var x10: UInt64
+    public var x11: UInt64
+    public var x12: UInt64
+    public var x13: UInt64
+    public var x14: UInt64
+    public var x15: UInt64
+    public var x16: UInt64
+    public var x17: UInt64
+    public var x18: UInt64
+    public var x19: UInt64
+    public var x20: UInt64
+    public var x21: UInt64
+    public var x22: UInt64
+    public var x23: UInt64
+    public var x24: UInt64
+    public var x25: UInt64
+    public var x26: UInt64
+    public var x27: UInt64
+    public var x28: UInt64
+    public var x29: UInt64 // fp
+    public var x30: UInt64 // lr
+    public var elr_el1: UInt64 // pc
+    public var spsr_el1: UInt64 // cpu status 
+    public var esr_el1: UInt64 // error reason
+}
+
+@frozen
+public enum ExceptionType: UInt64 {
+    // curr el with sp0 (EL1t)
+    // usually dont happen cuz we switch to sp_el1, but just in case
+    case syncEL1t = 0
+    case irqEL1t = 1
+    case fiqEL1t = 2
+    case seErrorEL1t = 3
+
+    // curr el with sp1 (EL1h)
+    // exception in kernel space
+    case syncEL1h = 4
+    case irqEL1h = 5
+    case fiqEL1h = 6
+    case seErrorEL1h = 7
+
+    // lower EL 64-bit from userspace
+    case syncEL0_64 = 8
+    case irqEL0_64 = 9
+    case fiqEL0_64 = 10
+    case seErrorEL0_64 = 11
+
+    // lower EL 32-bit from userspace
+    case syncEL0_32 = 12
+    case irqEL0_32 = 13
+    case fiqEL0_32 = 14
+    case seErrorEL0_32 = 15
+}
+
+@_cdecl("swift_trap_handler")
+public func trapHandler(context: UnsafeMutableRawPointer, rawType: UInt64) {
+    let context = context.assumingMemoryBound(to: ExceptionContext.self)
+    let type = ExceptionType(rawValue: rawType)!
+
+    panic(context: context.pointee)
+}