projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 1bc83266 HL |
1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 3 | # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
| 5 | # Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>\r | |
| 6 | #\r | |
| 7 | # This program and the accompanying materials\r | |
| 8 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 9 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 10 | # http://opensource.org/licenses/bsd-license.php.\r | |
| 11 | #\r | |
| 12 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 13 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 14 | #\r | |
| 15 | #------------------------------------------------------------------------------\r | |
| 16 | \r | |
| 17 | .text\r | |
| 18 | .align 3\r | |
| 19 | \r | |
| 919a3a02 | 20 | GCC_ASM_EXPORT(SecSwitchStack)\r |
| 1bc83266 HL |
21 | \r |
| 22 | \r | |
| 23 | \r | |
| 24 | #/**\r | |
| 25 | # This allows the caller to switch the stack and return\r | |
| 26 | #\r | |
| 27 | # @param StackDelta Signed amount by which to modify the stack pointer\r | |
| 28 | #\r | |
| 29 | # @return Nothing. Goes to the Entry Point passing in the new parameters\r | |
| 30 | #\r | |
| 31 | #**/\r | |
| 32 | #VOID\r | |
| 33 | #EFIAPI\r | |
| 34 | #SecSwitchStack (\r | |
| 35 | # VOID *StackDelta\r | |
| 36 | # )#\r | |
| 37 | #\r | |
| 38 | ASM_PFX(SecSwitchStack):\r | |
| 39 | mov x1, sp\r | |
| 40 | add x1, x0, x1\r | |
| 41 | mov sp, x1\r | |
| 42 | ret\r | |
| 43 | \r |