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Adding support for a single stack, GCC check in will follow

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9697 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
AJFISH
2010-01-08 21:12:20 +00:00
parent 05d612fd39
commit 8a4d81e693
5 changed files with 215 additions and 103 deletions
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28
ArmPkg/Drivers/CpuDxe/Exception.c
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@@ -15,6 +15,8 @@
#include "CpuDxe.h"
#include <Library/CacheMaintenanceLib.h>
extern BOOLEAN gExceptionContext;
VOID
ExceptionHandlersStart (
VOID
@@ -120,7 +122,16 @@ RegisterDebuggerInterruptHandler (
return EFI_SUCCESS;
}
CHAR8 *gExceptionTypeString[] = {
"Reset",
"Undefined Instruction",
"SWI",
"Prefetch Abort",
"Data Abort",
"Undefined",
"IRQ",
"FIQ"
};
VOID
EFIAPI
@@ -130,6 +141,8 @@ CommonCExceptionHandler (
)
{
BOOLEAN Dispatched = FALSE;
gExceptionContext = TRUE;
if (ExceptionType <= MAX_ARM_EXCEPTION) {
if (gDebuggerExceptionHandlers[ExceptionType]) {
@@ -144,8 +157,13 @@ CommonCExceptionHandler (
gExceptionHandlers[ExceptionType] (ExceptionType, SystemContext);
Dispatched = TRUE;
}
} else {
DEBUG ((EFI_D_ERROR, "Unknown exception type %d from %08x\n", ExceptionType, SystemContext.SystemContextArm->PC));
ASSERT (FALSE);
}
gExceptionContext = FALSE;
if (Dispatched) {
//
// We did work so this was an expected ExceptionType
@@ -163,7 +181,7 @@ CommonCExceptionHandler (
//
// Code after here is the default exception handler...
//
DEBUG ((EFI_D_ERROR, "Exception %d from %08x\n", ExceptionType, SystemContext.SystemContextArm->PC));
DEBUG ((EFI_D_ERROR, "%a Exception from %08x\n", gExceptionTypeString[ExceptionType], SystemContext.SystemContextArm->PC));
ASSERT (FALSE);
}
@@ -200,7 +218,7 @@ InitializeExceptions (
}
//
// Copy an implementation of the ARM exception vectors to 0x0.
// Copy an implementation of the ARM exception vectors to PcdCpuVectorBaseAddress.
//
Length = (UINTN)ExceptionHandlersEnd - (UINTN)ExceptionHandlersStart;
@@ -213,7 +231,7 @@ InitializeExceptions (
// on embedded systems, for example, we don't want to hang up. So we'll check here for a status of
// EFI_NOT_FOUND, and continue in that case.
if (EFI_ERROR(Status) && (Status != EFI_NOT_FOUND)) {
ASSERT_EFI_ERROR (Status);
ASSERT_EFI_ERROR (Status);
}
CopyMem ((VOID *)(UINTN)PcdGet32 (PcdCpuVectorBaseAddress), (VOID *)ExceptionHandlersStart, Length);
@@ -225,7 +243,7 @@ InitializeExceptions (
*(UINTN *) ((UINT8 *)(UINTN)PcdGet32 (PcdCpuVectorBaseAddress) + Offset) = (UINTN)AsmCommonExceptionEntry;
// Flush Caches since we updated executable stuff
InvalidateInstructionCacheRange((VOID *)PcdGet32(PcdCpuVectorBaseAddress), Length);
InvalidateInstructionCacheRange ((VOID *)PcdGet32(PcdCpuVectorBaseAddress), Length);
if (Enabled) {
//