diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/SwitchStack.S')
-rw-r--r-- | MdePkg/Library/BaseLib/X64/SwitchStack.S | 96 |
1 files changed, 48 insertions, 48 deletions
diff --git a/MdePkg/Library/BaseLib/X64/SwitchStack.S b/MdePkg/Library/BaseLib/X64/SwitchStack.S index 20c02d5b43..e75ddaf965 100644 --- a/MdePkg/Library/BaseLib/X64/SwitchStack.S +++ b/MdePkg/Library/BaseLib/X64/SwitchStack.S @@ -1,48 +1,48 @@ -#------------------------------------------------------------------------------ -# -# 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. -# -# Module Name: -# -# SwitchStack.S -# -# Abstract: -# -#------------------------------------------------------------------------------ - - -#------------------------------------------------------------------------------ -# Routine Description: -# -# Routine for switching stacks with 2 parameters -# -# Arguments: -# -# (rcx) EntryPoint - Entry point with new stack. -# (rdx) Context1 - Parameter1 for entry point. -# (r8) Context2 - Parameter2 for entry point. -# (r9) NewStack - Pointer to new stack. -# -# Returns: -# -# None -# -#------------------------------------------------------------------------------ -.global ASM_PFX(InternalSwitchStack) -ASM_PFX(InternalSwitchStack): - mov %rcx, %rax - mov %rdx, %rcx - mov %r8, %rdx - # - # Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack, - # in case the callee wishes to spill them. - # - lea -0x20(%r9), %rsp - call *%rax +#------------------------------------------------------------------------------
+#
+# 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.
+#
+# Module Name:
+#
+# SwitchStack.S
+#
+# Abstract:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# Routine Description:
+#
+# Routine for switching stacks with 2 parameters
+#
+# Arguments:
+#
+# (rcx) EntryPoint - Entry point with new stack.
+# (rdx) Context1 - Parameter1 for entry point.
+# (r8) Context2 - Parameter2 for entry point.
+# (r9) NewStack - Pointer to new stack.
+#
+# Returns:
+#
+# None
+#
+#------------------------------------------------------------------------------
+.global ASM_PFX(InternalSwitchStack)
+ASM_PFX(InternalSwitchStack):
+ mov %rcx, %rax
+ mov %rdx, %rcx
+ mov %r8, %rdx
+ #
+ # Reserve space for register parameters (rcx, rdx, r8 & r9) on the stack,
+ # in case the callee wishes to spill them.
+ #
+ lea -0x20(%r9), %rsp
+ call *%rax
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