forked from xt-sys/exectos
134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/rtl/i686/exsup.cc
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* DESCRIPTION: Exception handling for i686 architecture
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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* Aiken Harris <harraiken91@gmail.com>
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*/
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#include <xtos.hh>
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/**
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* Handles SEH structured exception frames.
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*
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* @param ExceptionRecord
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* A pointer to the exception record.
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*
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* @param EstablisherFrame
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* The address of the base of the fixed stack allocation.
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*
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* @param ContextRecord
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* A pointer to the context record at the time the exception was raised.
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*
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* @param DispatcherContext
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* A pointer to the dispatcher context for the function.
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*
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* @return This routine returns an exception disposition value if the exception was not handled by any filter.
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*
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* @since XT 1.0
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*/
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XTCLINK
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XTCDECL
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EXCEPTION_DISPOSITION
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__C_specific_handler(IN PEXCEPTION_RECORD ExceptionRecord,
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IN PVOID EstablisherFrame,
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IN OUT PCONTEXT ContextRecord,
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IN OUT PVOID DispatcherContext)
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{
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UNIMPLEMENTED;
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/* Continue execution */
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return ExceptionContinueExecution;
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}
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/**
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* Handles C++ structured exception frames. This implementation displays a panic screen and halts the system.
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*
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* @param ExceptionRecord
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* A pointer to the exception record that is passed to the possible catch statements.
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*
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* @param EstablisherFrame
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* A pointer to the stack frame that is used to handle the exception.
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*
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* @param ContextRecord
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* A pointer to the context record (not used on Intel CPUs).
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*
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* @param DispatcherContext
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* A pointer to the dispatcher provding information about function entry and stack frame (not used on Intel CPUs).
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*
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* @return This routine returns an exception disposition value if the exception was not handled by any filter.
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*
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* @since XT 1.0
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*/
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XTCLINK
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XTCDECL
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EXCEPTION_DISPOSITION
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__CxxFrameHandler3(IN PEXCEPTION_RECORD ExceptionRecord,
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IN PVOID EstablisherFrame,
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IN OUT PCONTEXT ContextRecord,
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IN OUT PVOID DispatcherContext)
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{
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UNIMPLEMENTED;
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/* Disable interrupts and hang */
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AR::CpuFunc::ClearInterruptFlag();
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KE::Crash::Panic(0); // CXX_FRAME_HANDLER_CALLED
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/* Continue search */
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return ExceptionContinueSearch;
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}
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/**
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* Finds the appropriate exception handler to process the current exception.
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*
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* @param ExceptionRecord
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* A pointer to the exception record providing information about the specific exception.
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*
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* @param Registration
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* A pointer to the record that indicates which scope table should be used to find the exception handler.
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*
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* @param Context
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* Reserved.
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*
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* @param Dispatcher
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* Reserved.
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*
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* @return This routine returns DISPOSITION_DISMISS or DISPOSITION_CONTINUE_SEARCH.
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*
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* @since XT 1.0
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*/
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XTCLINK
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XTCDECL
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INT
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_except_handler3(IN PEXCEPTION_RECORD ExceptionRecord,
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IN PVOID Registration,
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IN PCONTEXT Context,
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IN PVOID Dispatcher)
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{
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UNIMPLEMENTED;
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/* Handler not found */
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return 0;
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}
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/**
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* Handles pure virtual function call error. This implementation displays a panic screen and halts the system.
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*
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* @return This function does not return any value.
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*
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* @since XT 1.0
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*/
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XTCLINK
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XTCDECL
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VOID
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_purecall(VOID)
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{
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UNIMPLEMENTED;
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/* Disable interrupts and hang */
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AR::CpuFunc::ClearInterruptFlag();
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KE::Crash::Panic(0); // PURE_VIRTUAL_FUNCTION_CALL
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}
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