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