include/linux/linkage.h

   1 /*
   2  * U-boot - linkage.h
   3  *
   4  * Copyright (c) 2005-2007 Analog Devices Inc.
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef _LINUX_LINKAGE_H
  10 #define _LINUX_LINKAGE_H
  11
  12 #include <asm/linkage.h>
  13 #include <linux/config.h>
  14
  15 #ifdef __cplusplus
  16 #define CPP_ASMLINKAGE          extern "C"
  17 #else
  18 #define CPP_ASMLINKAGE
  19 #endif
  20
  21 #define asmlinkage CPP_ASMLINKAGE
  22
  23 #define SYMBOL_NAME_STR(X)      #X
  24 #define SYMBOL_NAME(X)          X
  25 #ifdef __STDC__
  26 #define SYMBOL_NAME_LABEL(X)    X##:
  27 #else
  28 #define SYMBOL_NAME_LABEL(X)    X:
  29 #endif
  30
  31 #ifndef __ALIGN
  32 #define __ALIGN .align          4
  33 #endif
  34
  35 #ifndef __ALIGN_STR
  36 #define __ALIGN_STR             ".align 4"
  37 #endif
  38
  39 #ifdef __ASSEMBLY__
  40
  41 #define ALIGN                   __ALIGN
  42 #define ALIGN_STR               __ALIGN_STR
  43
  44 #define LENTRY(name) \
  45         ALIGN; \
  46         SYMBOL_NAME_LABEL(name)
  47
  48 #define ENTRY(name) \
  49         .globl SYMBOL_NAME(name); \
  50         LENTRY(name)
  51
  52 #ifndef END
  53 #define END(name) \
  54         .size name, .-name
  55 #endif
  56
  57 #ifndef ENDPROC
  58 #define ENDPROC(name) \
  59         .type name STT_FUNC; \
  60         END(name)
  61 #endif
  62
  63 #endif
  64
  65 #endif