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 /* Some toolchains use other characters (e.g. '`') to mark new line in macro */
  15 #ifndef ASM_NL
  16 #define ASM_NL           ;
  17 #endif
  18
  19 #ifdef __cplusplus
  20 #define CPP_ASMLINKAGE          extern "C"
  21 #else
  22 #define CPP_ASMLINKAGE
  23 #endif
  24
  25 #ifndef asmlinkage
  26 #define asmlinkage CPP_ASMLINKAGE
  27 #endif
  28
  29 #define SYMBOL_NAME_STR(X)      #X
  30 #define SYMBOL_NAME(X)          X
  31 #ifdef __STDC__
  32 #define SYMBOL_NAME_LABEL(X)    X##:
  33 #else
  34 #define SYMBOL_NAME_LABEL(X)    X:
  35 #endif
  36
  37 #ifndef __ALIGN
  38 #define __ALIGN .align          4
  39 #endif
  40
  41 #ifndef __ALIGN_STR
  42 #define __ALIGN_STR             ".align 4"
  43 #endif
  44
  45 #ifdef __ASSEMBLY__
  46
  47 #define ALIGN                   __ALIGN
  48 #define ALIGN_STR               __ALIGN_STR
  49
  50 #define LENTRY(name) \
  51         ALIGN ASM_NL \
  52         SYMBOL_NAME_LABEL(name)
  53
  54 #define ENTRY(name) \
  55         .globl SYMBOL_NAME(name) ASM_NL \
  56         LENTRY(name)
  57
  58 #define WEAK(name) \
  59         .weak SYMBOL_NAME(name) ASM_NL \
  60         LENTRY(name)
  61
  62 #ifndef END
  63 #define END(name) \
  64         .size name, .-name
  65 #endif
  66
  67 #ifndef ENDPROC
  68 #define ENDPROC(name) \
  69         .type name STT_FUNC ASM_NL \
  70         END(name)
  71 #endif
  72
  73 #endif
  74
  75 #endif