audk/MdePkg/Library/BaseLib/AArch64/CpuBreakpoint.S

#------------------------------------------------------------------------------
#
# CpuBreakpoint() for AArch64
#
# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
# 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.
#
#------------------------------------------------------------------------------

.text
.p2align 2
GCC_ASM_EXPORT(CpuBreakpoint)

#/**
#  Generates a breakpoint on the CPU.
#
#  Generates a breakpoint on the CPU. The breakpoint must be implemented such
#  that code can resume normal execution after the breakpoint.
#
#**/
#VOID
#EFIAPI
#CpuBreakpoint (
#  VOID
#  );
#
ASM_PFX(CpuBreakpoint):
    svc   0xdbdb    // Superviser exception. Takes 16bit arg -> Armv7 had 'swi' here.
    ret