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 #ifndef asmlinkage
  21 #define asmlinkage CPP_ASMLINKAGE
  22 #endif
  23
  24 #define SYMBOL_NAME_STR(X)      #X
  25 #define SYMBOL_NAME(X)          X
  26 #ifdef __STDC__
  27 #define SYMBOL_NAME_LABEL(X)    X##:
  28 #else
  29 #define SYMBOL_NAME_LABEL(X)    X:
  30 #endif
  31
  32 #ifndef __ALIGN
  33 #define __ALIGN .align          4
  34 #endif
  35
  36 #ifndef __ALIGN_STR
  37 #define __ALIGN_STR             ".align 4"
  38 #endif
  39
  40 #ifdef __ASSEMBLY__
  41
  42 #define ALIGN                   __ALIGN
  43 #define ALIGN_STR               __ALIGN_STR
  44
  45 #define LENTRY(name) \
  46         ALIGN; \
  47         SYMBOL_NAME_LABEL(name)
  48
  49 #define ENTRY(name) \
  50         .globl SYMBOL_NAME(name); \
  51         LENTRY(name)
  52
  53 #define WEAK(name) \
  54         .weak SYMBOL_NAME(name); \
  55         LENTRY(name)
  56
  57 #ifndef END
  58 #define END(name) \
  59         .size name, .-name
  60 #endif
  61
  62 #ifndef ENDPROC
  63 #define ENDPROC(name) \
  64         .type name STT_FUNC; \
  65         END(name)
  66 #endif
  67
  68 #endif
  69
  70 #endif