diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm')
| -rw-r--r-- | roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm b/roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm new file mode 100644 index 000000000..28d625e67 --- /dev/null +++ b/roms/edk2/ArmPlatformPkg/PrePeiCore/Arm/Exception.asm @@ -0,0 +1,83 @@ +//
+// Copyright (c) 2011, ARM Limited. All rights reserved.
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//
+
+#include <AutoGen.h>
+
+ IMPORT PeiCommonExceptionEntry
+ EXPORT PeiVectorTable
+
+ PRESERVE8
+ AREA PrePeiCoreException, CODE, READONLY, CODEALIGN, ALIGN=5
+
+//============================================================
+//Default Exception Handlers
+//============================================================
+
+
+PeiVectorTable
+ b _DefaultResetHandler
+ b _DefaultUndefined
+ b _DefaultSWI
+ b _DefaultPrefetchAbort
+ b _DefaultDataAbort
+ b _DefaultReserved
+ b _DefaultIrq
+ b _DefaultFiq
+
+//
+// Default Exception handlers: There is no plan to return from any of these exceptions.
+// No context saving at all.
+//
+_DefaultResetHandler
+ mov r1, lr
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #0
+ blx PeiCommonExceptionEntry
+
+_DefaultUndefined
+ sub r1, LR, #4
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #1
+ blx PeiCommonExceptionEntry
+
+_DefaultSWI
+ sub r1, LR, #4
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #2
+ blx PeiCommonExceptionEntry
+
+_DefaultPrefetchAbort
+ sub r1, LR, #4
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #3
+ blx PeiCommonExceptionEntry
+
+_DefaultDataAbort
+ sub r1, LR, #8
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #4
+ blx PeiCommonExceptionEntry
+
+_DefaultReserved
+ mov r1, lr
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #5
+ blx PeiCommonExceptionEntry
+
+_DefaultIrq
+ sub r1, LR, #4
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #6
+ blx PeiCommonExceptionEntry
+
+_DefaultFiq
+ sub r1, LR, #4
+ cps #0x13 ; Switch to SVC for common stack
+ mov r0, #7
+ blx PeiCommonExceptionEntry
+
+ END
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