include/linux/linkage.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * U-Boot - linkage.h
   4  *
   5  * Copyright (c) 2005-2007 Analog Devices Inc.
   6  */
   7
   8 #ifndef _LINUX_LINKAGE_H
   9 #define _LINUX_LINKAGE_H
  10
  11 #include <asm/linkage.h>
  12
  13 /* Some toolchains use other characters (e.g. '`') to mark new line in macro */
  14 #ifndef ASM_NL
  15 #define ASM_NL           ;
  16 #endif
  17
  18 #ifdef __cplusplus
  19 #define CPP_ASMLINKAGE          extern "C"
  20 #else
  21 #define CPP_ASMLINKAGE
  22 #endif
  23
  24 #ifndef asmlinkage
  25 #define asmlinkage CPP_ASMLINKAGE
  26 #endif
  27
  28 #define SYMBOL_NAME_STR(X)      #X
  29 #define SYMBOL_NAME(X)          X
  30 #ifdef __STDC__
  31 #define SYMBOL_NAME_LABEL(X)    X##:
  32 #else
  33 #define SYMBOL_NAME_LABEL(X)    X:
  34 #endif
  35
  36 #ifndef __ALIGN
  37 #define __ALIGN .align          4
  38 #endif
  39
  40 #ifndef __ALIGN_STR
  41 #define __ALIGN_STR             ".align 4"
  42 #endif
  43
  44 #ifdef __ASSEMBLY__
  45
  46 #define ALIGN                   __ALIGN
  47 #define ALIGN_STR               __ALIGN_STR
  48
  49 #define LENTRY(name) \
  50         ALIGN ASM_NL \
  51         SYMBOL_NAME_LABEL(name)
  52
  53 #define ENTRY(name) \
  54         .globl SYMBOL_NAME(name) ASM_NL \
  55         LENTRY(name)
  56
  57 #define WEAK(name) \
  58         .weak SYMBOL_NAME(name) ASM_NL \
  59         LENTRY(name)
  60
  61 #ifndef END
  62 #define END(name) \
  63         .size name, .-name
  64 #endif
  65
  66 #ifndef ENDPROC
  67 #define ENDPROC(name) \
  68         .type name STT_FUNC ASM_NL \
  69         END(name)
  70 #endif
  71
  72 #endif
  73
  74 #endif