include/asm-x86/linkage.h

   1 #ifndef __ASM_LINKAGE_H
   2 #define __ASM_LINKAGE_H
   3
   4 #ifdef CONFIG_X86_64
   5 #define __ALIGN .p2align 4,,15
   6 #define __ALIGN_STR ".p2align 4,,15"
   7 #endif
   8
   9 #ifdef CONFIG_X86_32
  10 #define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
  11 /*
  12  * For 32-bit UML - mark functions implemented in assembly that use
  13  * regparm input parameters:
  14  */
  15 #define asmregparm __attribute__((regparm(3)))
  16
  17 #define asmlinkage_protect(n, ret, args...) \
  18         __asmlinkage_protect##n(ret, ##args)
  19 #define __asmlinkage_protect_n(ret, args...) \
  20         __asm__ __volatile__ ("" : "=r" (ret) : "0" (ret), ##args)
  21 #define __asmlinkage_protect0(ret) \
  22         __asmlinkage_protect_n(ret)
  23 #define __asmlinkage_protect1(ret, arg1) \
  24         __asmlinkage_protect_n(ret, "g" (arg1))
  25 #define __asmlinkage_protect2(ret, arg1, arg2) \
  26         __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2))
  27 #define __asmlinkage_protect3(ret, arg1, arg2, arg3) \
  28         __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3))
  29 #define __asmlinkage_protect4(ret, arg1, arg2, arg3, arg4) \
  30         __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
  31                               "g" (arg4))
  32 #define __asmlinkage_protect5(ret, arg1, arg2, arg3, arg4, arg5) \
  33         __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
  34                               "g" (arg4), "g" (arg5))
  35 #define __asmlinkage_protect6(ret, arg1, arg2, arg3, arg4, arg5, arg6) \
  36         __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
  37                               "g" (arg4), "g" (arg5), "g" (arg6))
  38
  39 #endif
  40
  41 #ifdef CONFIG_X86_ALIGNMENT_16
  42 #define __ALIGN .align 16,0x90
  43 #define __ALIGN_STR ".align 16,0x90"
  44 #endif
  45
  46 #endif
  47