feat(kernel): add vectors.S and Exceptions.h/c as a stub for future exceptions handling

2026-04-23 22:03:18 +04:00
parent 502413b9ab
commit 93bce5a46d
6 changed files with 171 additions and 1 deletions
@@ -0,0 +1,67 @@
+#pragma once
+#include <types.h>
+
+typedef struct ExceptionsContext {
+    UInt64 x0;
+    UInt64 x1;
+    UInt64 x2;
+    UInt64 x3;
+    UInt64 x4;
+    UInt64 x5;
+    UInt64 x6;
+    UInt64 x7;
+    UInt64 x8;
+    UInt64 x9;
+    UInt64 x10;
+    UInt64 x11;
+    UInt64 x12;
+    UInt64 x13;
+    UInt64 x14;
+    UInt64 x15;
+    UInt64 x16;
+    UInt64 x17;
+    UInt64 x18;
+    UInt64 x19;
+    UInt64 x20;
+    UInt64 x21;
+    UInt64 x22;
+    UInt64 x23;
+    UInt64 x24;
+    UInt64 x25;
+    UInt64 x26;
+    UInt64 x27;
+    UInt64 x28;
+    UInt64 x29; // fp
+    UInt64 x30; // lr
+    UInt64 elr_el1; // pc
+    UInt64 spsr_el1; // cpu status
+    UInt64 esr_el1; // error reason
+} ExceptionsContext;
+
+typedef enum ExceptionsType {
+    // curr el with sp0 (EL1t)
+    // usually dont happen cuz we switch to sp_el1, but just in case
+    ExceptionsSyncEl1t,
+    ExceptionsIRQEl1t,
+    ExceptionsFIQEl1t,
+    ExceptionsSErrorEl1t,
+
+    // curr el with sp1 (EL1h)
+    // exception in kernel space
+    ExceptionsSyncEl1h,
+    ExceptionsIRQEl1h,
+    ExceptionsFIQEl1h,
+    ExceptionsSErrorEl1h,
+
+    // lower EL 64-bit from userspace
+    ExceptionsSyncEl064,
+    ExceptionsIRQEl064,
+    ExceptionsFIQEl064,
+    ExceptionsSErrorEl064,
+
+    // lower EL 32-bit from userspace
+    ExceptionsSyncEl032,
+    ExceptionsIRQEl032,
+    ExceptionsFIQEl032,
+    ExceptionsSErrorEl032,
+} ExceptionsType;