include/linux/linkage.h

   1 /*
   2  * U-boot - linkage.h
   3  *
   4  * Copyright (c) 2005-2007 Analog Devices Inc.
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  22  * MA 02110-1301 USA
  23  */
  24
  25 #ifndef _LINUX_LINKAGE_H
  26 #define _LINUX_LINKAGE_H
  27
  28 #include <asm/linkage.h>
  29 #include <linux/config.h>
  30
  31 #ifdef __cplusplus
  32 #define CPP_ASMLINKAGE          extern "C"
  33 #else
  34 #define CPP_ASMLINKAGE
  35 #endif
  36
  37 #define asmlinkage CPP_ASMLINKAGE
  38
  39 #define SYMBOL_NAME_STR(X)      #X
  40 #define SYMBOL_NAME(X)          X
  41 #ifdef __STDC__
  42 #define SYMBOL_NAME_LABEL(X)    X##:
  43 #else
  44 #define SYMBOL_NAME_LABEL(X)    X:
  45 #endif
  46
  47 #ifndef __ALIGN
  48 #define __ALIGN .align          4
  49 #endif
  50
  51 #ifndef __ALIGN_STR
  52 #define __ALIGN_STR             ".align 4"
  53 #endif
  54
  55 #ifdef __ASSEMBLY__
  56
  57 #define ALIGN                   __ALIGN
  58 #define ALIGN_STR               __ALIGN_STR
  59
  60 #define LENTRY(name) \
  61         ALIGN; \
  62         SYMBOL_NAME_LABEL(name)
  63
  64 #define ENTRY(name) \
  65         .globl SYMBOL_NAME(name); \
  66         LENTRY(name)
  67
  68 #ifndef END
  69 #define END(name) \
  70         .size name, .-name
  71 #endif
  72
  73 #ifndef ENDPROC
  74 #define ENDPROC(name) \
  75         .type name STT_FUNC; \
  76         END(name)
  77 #endif
  78
  79 #endif
  80
  81 #endif