]>
Commit | Line | Data |
---|---|---|
f1baef62 | 1 | #------------------------------------------------------------------------------ |
2 | # | |
d2e6d788 | 3 | # Copyright (c) 2006 - 2008, Intel Corporation |
f1baef62 | 4 | # All rights reserved. This program and the accompanying materials |
5 | # are licensed and made available under the terms and conditions of the BSD License | |
6 | # which accompanies this distribution. The full text of the license may be found at | |
7 | # http://opensource.org/licenses/bsd-license.php | |
8 | # | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
11 | # | |
12 | # Module Name: | |
13 | # | |
14 | # SwitchStack.S | |
15 | # | |
16 | # Abstract: | |
17 | # | |
18 | #------------------------------------------------------------------------------ | |
19 | ||
20 | ||
21 | #------------------------------------------------------------------------------ | |
22 | # Routine Description: | |
23 | # | |
d2e6d788 | 24 | # Routine for switching stacks with 2 parameters |
f1baef62 | 25 | # |
26 | # Arguments: | |
27 | # | |
d2e6d788 | 28 | # (rcx) EntryPoint - Entry point with new stack. |
29 | # (rdx) Context1 - Parameter1 for entry point. | |
30 | # (r8) Context2 - Parameter2 for entry point. | |
31 | # (r9) NewStack - Pointer to new stack. | |
f1baef62 | 32 | # |
33 | # Returns: | |
34 | # | |
35 | # None | |
36 | # | |
37 | #------------------------------------------------------------------------------ | |
85c25283 | 38 | .global ASM_PFX(InternalSwitchStack) |
39 | ASM_PFX(InternalSwitchStack): | |
f1baef62 | 40 | mov %rcx, %rax |
41 | mov %rdx, %rcx | |
42 | mov %r8, %rdx | |
85c25283 | 43 | # |
44 | # Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack, | |
45 | # in case the callee wishes to spill them. | |
d2e6d788 | 46 | # |
f1baef62 | 47 | lea -0x20(%r9), %rsp |
48 | call *%rax |