mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
|
/** @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);
|
||
|
|
}
|