MdePkg/Library/BaseLib/Ebc/SetJumpLongJump.c File Reference


Functions

UINTN EFIAPI SetJump (OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer)
VOID EFIAPI InternalLongJump (IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, IN UINTN Value)

Detailed Description

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.
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.


Function Documentation

VOID EFIAPI InternalLongJump ( IN BASE_LIBRARY_JUMP_BUFFER JumpBuffer,
IN UINTN  Value 
)

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.

Parameters:
JumpBuffer A pointer to CPU context buffer.
Value The value to return when the SetJump() context is restored.

References ASSERT, and FALSE.

Referenced by LongJump().

UINTN EFIAPI SetJump ( OUT BASE_LIBRARY_JUMP_BUFFER JumpBuffer  ) 

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().

Parameters:
JumpBuffer A pointer to CPU context buffer.
Return values:
0 Indicates a return from SetJump().

References InternalAssertJumpBuffer().

Referenced by PeriodicSmiDispatchFunctionOnCpu(), and PeriodicSmiYield().


Generated on Thu Sep 24 23:14:22 2015 for MdePkg[ALL] by  doxygen 1.5.7.1