MdePkg/Library/BaseLib/AArch64/CpuBreakpoint.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; CpuBreakpoint() for AArch64
   4 ;
   5 ; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
   6 ; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   7 ; Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
   8 ; SPDX-License-Identifier: BSD-2-Clause-Patent
   9 ;
  10 ;------------------------------------------------------------------------------
  11
  12
  13   EXPORT CpuBreakpoint
  14   AREA BaseLib_LowLevel, CODE, READONLY
  15
  16 ;/**
  17 ;  Generates a breakpoint on the CPU.
  18 ;
  19 ;  Generates a breakpoint on the CPU. The breakpoint must be implemented such
  20 ;  that code can resume normal execution after the breakpoint.
  21 ;
  22 ;**/
  23 ;VOID
  24 ;EFIAPI
  25 ;CpuBreakpoint (
  26 ;  VOID
  27 ;  );
  28 ;
  29 CpuBreakpoint
  30     svc   0xdbdb    // Superviser exception. Takes 16bit arg -> Armv7 had 'swi' here.
  31     ret
  32
  33   END