toolchain/gcc/libgloss/i386/cygmon-syscall.h

   1 /*
   2  * Standard x86 syscalls for user programs running under Cygmon
   3  *
   4  * Copyright (c) 1998 Cygnus Support
   5  *
   6  * The authors hereby grant permission to use, copy, modify, distribute,
   7  * and license this software and its documentation for any purpose, provided
   8  * that existing copyright notices are retained in all copies and that this
   9  * notice is included verbatim in any distributions. No written agreement,
  10  * license, or royalty fee is required for any of the authorized uses.
  11  * Modifications to this software may be copyrighted by their authors
  12  * and need not follow the licensing terms described here, provided that
  13  * the new terms are clearly indicated on the first page of each file where
  14  * they apply.
  15  */
  16
  17 #ifndef CYGMON_SYSCALL_H
  18 #define CYGMON_SYSCALL_H
  19
  20 #define __MAX_ERRNO 4096
  21
  22 #define _syscall0(type,name) \
  23 type name(void) \
  24 { \
  25 long __res; \
  26 __asm__ __volatile__ ("int $0x80" \
  27         : "=a" (__res) \
  28         : "0" (SYS_##name)); \
  29         return (type) __res; \
  30 }
  31
  32 #define _syscall1(type,name,atype,a) \
  33 type name(atype a) \
  34 { \
  35 long __res, dummy; \
  36 __asm__ __volatile__ ("int $0x80" \
  37         : "=a" (__res), "=&b" (dummy) \
  38         : "0" (SYS_##name),"1" ((long)(a))); \
  39         return (type) __res; \
  40 }
  41
  42 #define _syscall2(type,name,atype,a,btype,b) \
  43 type name(atype a,btype b) \
  44 { \
  45 long __res, dummy; \
  46 __asm__ __volatile__ ("int $0x80" \
  47         : "=a" (__res), "=&b" (dummy) \
  48         : "0" (SYS_##name),"1" ((long)(a)),"c" ((long)(b))); \
  49         return (type) __res; \
  50 }
  51
  52 #define _syscall3(type,name,atype,a,btype,b,ctype,c) \
  53 type name(atype a,btype b,ctype c) \
  54 { \
  55 long __res, dummy; \
  56 __asm__ __volatile__ ("int $0x80" \
  57         : "=a" (__res), "=&b" (dummy) \
  58         : "0" (SYS_##name),"1" ((long)(a)),"c" ((long)(b)),"d" ((long)(c))); \
  59         return (type) __res; \
  60 }
  61
  62 #define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
  63 type name (atype a, btype b, ctype c, dtype d) \
  64 { \
  65 long __res; \
  66 __asm__ __volatile__ ("int $0x80" \
  67         : "=a" (__res) \
  68         : "0" (SYS_##name),"b" ((long)(a)),"c" ((long)(b)), \
  69           "d" ((long)(c)),"S" ((long)(d))); \
  70         return (type) __res; \
  71 }
  72
  73 #define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
  74 type name (atype a,btype b,ctype c,dtype d,etype e) \
  75 { \
  76 long __res; \
  77 __asm__ __volatile__ ("int $0x80" \
  78         : "=a" (__res) \
  79         : "0" (SYS_##name),"b" ((long)(a)),"c" ((long)(b)), \
  80           "d" ((long)(c)),"S" ((long)(d)),"D" ((long)(e))); \
  81         return (type) __res; \
  82 }
  83
  84 #define SYS_putTtyChar 2
  85 #define SYS___sys_exit 1
  86 #define SYS_read 3
  87 #define SYS_write 4
  88 #define SYS___open 5
  89 #define SYS_close 6
  90 #define SYS_kill 37
  91 #define SYS_time 13
  92 #define SYS_gettimeofday 156
  93 #define SYS___install_signal_handler 48
  94 #define SYS_profil 98
  95 #define SYS___get_program_arguments 184
  96 #endif /* SYSCALL_H */