/** @file | |
Implementation of SetJump() and LongJump() on EBC. | |
SetJump() and LongJump() are not currently supported for the EBC processor type. | |
Implementation for EBC just returns 0 for SetJump(), and ASSERT() for LongJump(). | |
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include "BaseLibInternals.h" | |
/** | |
Saves the current CPU context that can be restored with a call to LongJump() and returns 0. | |
Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial | |
call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero | |
value to be returned by SetJump(). | |
If JumpBuffer is NULL, then ASSERT(). | |
For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). | |
@param JumpBuffer A pointer to CPU context buffer. | |
@retval 0 Indicates a return from SetJump(). | |
**/ | |
RETURNS_TWICE | |
UINTN | |
EFIAPI | |
SetJump ( | |
OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer | |
) | |
{ | |
InternalAssertJumpBuffer (JumpBuffer); | |
return 0; | |
} | |
/** | |
Restores the CPU context that was saved with SetJump(). | |
Restores the CPU context from the buffer specified by JumpBuffer. | |
This function never returns to the caller. | |
Instead it resumes execution based on the state of JumpBuffer. | |
@param JumpBuffer A pointer to CPU context buffer. | |
@param Value The value to return when the SetJump() context is restored. | |
**/ | |
VOID | |
EFIAPI | |
InternalLongJump ( | |
IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, | |
IN UINTN Value | |
) | |
{ | |
// | |
// This function cannot work on EBC | |
// | |
ASSERT (FALSE); | |
} |