diff options
Diffstat (limited to 'ArmPlatformPkg/PrePi/Exception.S')
-rwxr-xr-x | ArmPlatformPkg/PrePi/Exception.S | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/ArmPlatformPkg/PrePi/Exception.S b/ArmPlatformPkg/PrePi/Exception.S new file mode 100755 index 0000000000..628793e031 --- /dev/null +++ b/ArmPlatformPkg/PrePi/Exception.S @@ -0,0 +1,102 @@ +// +// Copyright (c) 2011, ARM Limited. All rights reserved. +// +# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# + +#include <AsmMacroIoLib.h> +#include <Base.h> +#include <AutoGen.h> + +#start of the code section +.text +.align 5 + +# IMPORT +GCC_ASM_IMPORT(PrePiCommonExceptionEntry) + +# EXPORT +GCC_ASM_EXPORT(PrePiVectorTable) + +//============================================================ +//Default Exception Handlers +//============================================================ + + +ASM_PFX(PrePiVectorTable): + 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 + # Switch to SVC for common stack + cps #0x13 + mov r0, #0 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultUndefined: + sub r1, LR, #4 + # Switch to SVC for common stack + cps #0x13 + mov r0, #1 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultSWI: + sub r1, LR, #4 + # Switch to SVC for common stack + cps #0x13 + mov r0, #2 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultPrefetchAbort: + sub r1, LR, #4 + # Switch to SVC for common stack + cps #0x13 + mov r0, #3 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultDataAbort: + sub r1, LR, #8 + # Switch to SVC for common stack + cps #0x13 + mov r0, #4 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultReserved: + mov r1, lr + # Switch to SVC for common stack + cps #0x13 + mov r0, #5 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultIrq: + sub r1, LR, #4 + # Switch to SVC for common stack + cps #0x13 + mov r0, #6 + blx ASM_PFX(PrePiCommonExceptionEntry) + +_DefaultFiq: + sub r1, LR, #4 + # Switch to SVC for common stack + cps #0x13 + mov r0, #7 + blx ASM_PFX(PrePiCommonExceptionEntry) + |