include/linux/linkage.h

   1 #ifndef _LINUX_LINKAGE_H
   2 #define _LINUX_LINKAGE_H
   3
   4 #include <linux/config.h>
   5 #include <asm/linkage.h>
   6
   7 #ifdef __cplusplus
   8 #define CPP_ASMLINKAGE extern "C"
   9 #else
  10 #define CPP_ASMLINKAGE
  11 #endif
  12
  13 #ifndef asmlinkage
  14 #define asmlinkage CPP_ASMLINKAGE
  15 #endif
  16
  17 #ifndef prevent_tail_call
  18 # define prevent_tail_call(ret) do { } while (0)
  19 #endif
  20
  21 #ifndef __ALIGN
  22 #define __ALIGN         .align 4,0x90
  23 #define __ALIGN_STR     ".align 4,0x90"
  24 #endif
  25
  26 #ifdef __ASSEMBLY__
  27
  28 #define ALIGN __ALIGN
  29 #define ALIGN_STR __ALIGN_STR
  30
  31 #ifndef ENTRY
  32 #define ENTRY(name) \
  33   .globl name; \
  34   ALIGN; \
  35   name:
  36 #endif
  37
  38 #define KPROBE_ENTRY(name) \
  39   .section .kprobes.text, "ax"; \
  40   ENTRY(name)
  41
  42 #ifndef END
  43 #define END(name) \
  44   .size name, .-name
  45 #endif
  46
  47 #ifndef ENDPROC
  48 #define ENDPROC(name) \
  49   .type name, @function; \
  50   END(name)
  51 #endif
  52
  53 #endif
  54
  55 #define NORET_TYPE    /**/
  56 #define ATTRIB_NORET  __attribute__((noreturn))
  57 #define NORET_AND     noreturn,
  58
  59 #ifndef FASTCALL
  60 #define FASTCALL(x)     x
  61 #define fastcall
  62 #endif
  63
  64 #endif