MdePkg/Include/Ipf/IpfMacro.i

   1 // @file
   2 // Contains the macros required by calling procedures in Itanium-based assembly code.
   3 //
   4 // Copyright (c) 2006 - 2009, Intel Corporation
   5 // All rights reserved. This program and the accompanying materials
   6 // are licensed and made available under the terms and conditions of the BSD License
   7 // which accompanies this distribution.  The full text of the license may be found at
   8 // http://opensource.org/licenses/bsd-license.php
   9 //
  10 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 //
  13
  14 #ifndef  __IA64PROC_I__
  15 #define  __IA64PROC_I__
  16
  17 //
  18 // Delcare the begin of assembly function entry.
  19 //
  20 // @param name Name of function in assembly code.
  21 //
  22 #define PROCEDURE_ENTRY(name)   .##text;            \
  23                                 .##type name, @function;    \
  24                                 .##proc name;           \
  25 name::
  26
  27 //
  28 // End of assembly function.
  29 //
  30 // @param name Name of function in assembly code.
  31 //
  32 #define PROCEDURE_EXIT(name)    .##endp name
  33
  34 //
  35 // NESTED_SETUP Requires number of locals (l) >= 3
  36 //
  37 #define NESTED_SETUP(i,l,o,r) \
  38          alloc loc1=ar##.##pfs,i,l,o,r ;\
  39          mov loc0=b0
  40
  41 //
  42 // End of Nested
  43 //
  44 #define NESTED_RETURN \
  45          mov b0=loc0 ;\
  46          mov ar##.##pfs=loc1 ;;\
  47          br##.##ret##.##dpnt  b0;;
  48
  49 //
  50 // Export assembly function as the global function.
  51 //
  52 // @param Function Name of function in assembly code.
  53 //
  54 #define GLOBAL_FUNCTION(Function) \
  55          .##type   Function, @function; \
  56          .##globl Function
  57
  58 #endif