sysdeps/unix/sysv/linux/sparc/sysdep.h

   1 /* Copyright (C) 2000-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LINUX_SPARC_SYSDEP_H
  20 #define _LINUX_SPARC_SYSDEP_H 1
  21
  22 #include <sysdeps/unix/sysdep.h>
  23 #include <sysdeps/sparc/sysdep.h>
  24
  25 #ifdef __ASSEMBLER__
  26
  27 #define ret             retl; nop
  28 #define ret_NOERRNO     retl; nop
  29 #define ret_ERRVAL      retl; nop
  30 #define r0              %o0
  31 #define r1              %o1
  32 #define MOVE(x,y)       mov x, y
  33
  34 #else   /* __ASSEMBLER__ */
  35
  36 #undef INLINE_SYSCALL
  37 #define INLINE_SYSCALL(name, nr, args...)                               \
  38 ({      INTERNAL_SYSCALL_DECL(err);                                     \
  39         unsigned long resultvar = INTERNAL_SYSCALL(name, err, nr, args);\
  40         if (INTERNAL_SYSCALL_ERROR_P (resultvar, err))                  \
  41           {                                                             \
  42             __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, err));      \
  43             resultvar = (unsigned long) -1;                             \
  44           }                                                             \
  45         (long) resultvar;                                               \
  46 })
  47
  48 #undef INTERNAL_SYSCALL_DECL
  49 #define INTERNAL_SYSCALL_DECL(err) \
  50         register long err __asm__("g1");
  51
  52 #undef INTERNAL_SYSCALL
  53 #define INTERNAL_SYSCALL(name, err, nr, args...) \
  54   inline_syscall##nr(__SYSCALL_STRING, err, __NR_##name, args)
  55
  56 #undef INTERNAL_SYSCALL_NCS
  57 #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
  58   inline_syscall##nr(__SYSCALL_STRING, err, name, args)
  59
  60 #undef INTERNAL_SYSCALL_ERROR_P
  61 #define INTERNAL_SYSCALL_ERROR_P(val, err) \
  62   ((void) (val), __builtin_expect((err) != 0, 0))
  63
  64 #undef INTERNAL_SYSCALL_ERRNO
  65 #define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
  66
  67 #define inline_syscall0(string,err,name,dummy...)                       \
  68 ({                                                                      \
  69         register long __o0 __asm__ ("o0");                              \
  70         err = name;                                                     \
  71         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  72                           "0" (err) :                                   \
  73                           __SYSCALL_CLOBBERS);                          \
  74         __o0;                                                           \
  75 })
  76
  77 #define inline_syscall1(string,err,name,arg1)                           \
  78 ({                                                                      \
  79         register long __o0 __asm__ ("o0") = (long)(arg1);               \
  80         err = name;                                                     \
  81         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  82                           "0" (err), "1" (__o0) :                       \
  83                           __SYSCALL_CLOBBERS);                          \
  84         __o0;                                                           \
  85 })
  86
  87 #define inline_syscall2(string,err,name,arg1,arg2)                      \
  88 ({                                                                      \
  89         register long __o0 __asm__ ("o0") = (long)(arg1);               \
  90         register long __o1 __asm__ ("o1") = (long)(arg2);               \
  91         err = name;                                                     \
  92         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  93                           "0" (err), "1" (__o0), "r" (__o1) :           \
  94                           __SYSCALL_CLOBBERS);                          \
  95         __o0;                                                           \
  96 })
  97
  98 #define inline_syscall3(string,err,name,arg1,arg2,arg3)                 \
  99 ({                                                                      \
 100         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 101         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 102         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 103         err = name;                                                     \
 104         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 105                           "0" (err), "1" (__o0), "r" (__o1),            \
 106                           "r" (__o2) :                                  \
 107                           __SYSCALL_CLOBBERS);                          \
 108         __o0;                                                           \
 109 })
 110
 111 #define inline_syscall4(string,err,name,arg1,arg2,arg3,arg4)            \
 112 ({                                                                      \
 113         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 114         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 115         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 116         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 117         err = name;                                                     \
 118         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 119                           "0" (err), "1" (__o0), "r" (__o1),            \
 120                           "r" (__o2), "r" (__o3) :                      \
 121                           __SYSCALL_CLOBBERS);                          \
 122         __o0;                                                           \
 123 })
 124
 125 #define inline_syscall5(string,err,name,arg1,arg2,arg3,arg4,arg5)       \
 126 ({                                                                      \
 127         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 128         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 129         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 130         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 131         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 132         err = name;                                                     \
 133         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 134                           "0" (err), "1" (__o0), "r" (__o1),            \
 135                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 136                           __SYSCALL_CLOBBERS);                          \
 137         __o0;                                                           \
 138 })
 139
 140 #define inline_syscall6(string,err,name,arg1,arg2,arg3,arg4,arg5,arg6)  \
 141 ({                                                                      \
 142         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 143         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 144         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 145         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 146         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 147         register long __o5 __asm__ ("o5") = (long)(arg6);               \
 148         err = name;                                                     \
 149         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 150                           "0" (err), "1" (__o0), "r" (__o1),            \
 151                           "r" (__o2), "r" (__o3), "r" (__o4),           \
 152                           "r" (__o5) :                                  \
 153                           __SYSCALL_CLOBBERS);                          \
 154         __o0;                                                           \
 155 })
 156
 157 #define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5)                  \
 158 ({                                                                      \
 159         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 160         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 161         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 162         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 163         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 164         register long __g1 __asm__ ("g1") = __NR_clone;                 \
 165         __asm __volatile (__SYSCALL_STRING :                            \
 166                           "=r" (__g1), "=r" (__o0), "=r" (__o1) :       \
 167                           "0" (__g1), "1" (__o0), "2" (__o1),           \
 168                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 169                           __SYSCALL_CLOBBERS);                          \
 170         if (INTERNAL_SYSCALL_ERROR_P (__o0, __g1))                      \
 171           {                                                             \
 172             __set_errno (INTERNAL_SYSCALL_ERRNO (__o0, __g1));          \
 173             __o0 = -1L;                                                 \
 174           }                                                             \
 175         else                                                            \
 176           {                                                             \
 177             __o0 &= (__o1 - 1);                                         \
 178           }                                                             \
 179         __o0;                                                           \
 180 })
 181
 182 #endif  /* __ASSEMBLER__ */
 183
 184 #endif /* _LINUX_SPARC_SYSDEP_H */