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
  14 #ifdef __cplusplus
  15 #define CPP_ASMLINKAGE          extern "C"
  16 #else
  17 #define CPP_ASMLINKAGE
  18 #endif
  19
  20 #define asmlinkage CPP_ASMLINKAGE
  21
  22 #define SYMBOL_NAME_STR(X)      #X
  23 #define SYMBOL_NAME(X)          X
  24 #ifdef __STDC__
  25 #define SYMBOL_NAME_LABEL(X)    X##:
  26 #else
  27 #define SYMBOL_NAME_LABEL(X)    X:
  28 #endif
  29
  30 #ifndef __ALIGN
  31 #define __ALIGN .align          4
  32 #endif
  33
  34 #ifndef __ALIGN_STR
  35 #define __ALIGN_STR             ".align 4"
  36 #endif
  37
  38 #ifdef __ASSEMBLY__
  39
  40 #define ALIGN                   __ALIGN
  41 #define ALIGN_STR               __ALIGN_STR
  42
  43 #define LENTRY(name) \
  44         ALIGN; \
  45         SYMBOL_NAME_LABEL(name)
  46
  47 #define ENTRY(name) \
  48         .globl SYMBOL_NAME(name); \
  49         LENTRY(name)
  50
  51 #define WEAK(name) \
  52         .weak SYMBOL_NAME(name); \
  53         LENTRY(name)
  54
  55 #ifndef END
  56 #define END(name) \
  57         .size name, .-name
  58 #endif
  59
  60 #ifndef ENDPROC
  61 #define ENDPROC(name) \
  62         .type name STT_FUNC; \
  63         END(name)
  64 #endif
  65
  66 #endif
  67
  68 #endif