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69 lines
2.0 KiB
69 lines
2.0 KiB
4 years ago
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/** @file
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Implementation of SetJump() and LongJump() on EBC.
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SetJump() and LongJump() are not currently supported for the EBC processor type.
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Implementation for EBC just returns 0 for SetJump(), and ASSERT() for LongJump().
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Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "BaseLibInternals.h"
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/**
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Saves the current CPU context that can be restored with a call to LongJump() and returns 0.
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Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial
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call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero
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value to be returned by SetJump().
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If JumpBuffer is NULL, then ASSERT().
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For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
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@param JumpBuffer A pointer to CPU context buffer.
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@retval 0 Indicates a return from SetJump().
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**/
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RETURNS_TWICE
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UINTN
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EFIAPI
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SetJump (
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OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer
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)
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{
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InternalAssertJumpBuffer (JumpBuffer);
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return 0;
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}
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/**
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Restores the CPU context that was saved with SetJump().
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Restores the CPU context from the buffer specified by JumpBuffer.
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This function never returns to the caller.
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Instead it resumes execution based on the state of JumpBuffer.
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@param JumpBuffer A pointer to CPU context buffer.
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@param Value The value to return when the SetJump() context is restored.
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**/
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VOID
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EFIAPI
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InternalLongJump (
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IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,
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IN UINTN Value
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)
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{
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//
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// This function cannot work on EBC
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//
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ASSERT (FALSE);
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}
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