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

   1 /* Copyright (C) 2000-2017 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/unix/sysv/linux/sysdep.h>
  24 #include <sysdeps/sparc/sysdep.h>
  25
  26 #ifdef __ASSEMBLER__
  27
  28 #define ret             retl; nop
  29 #define ret_NOERRNO     retl; nop
  30 #define ret_ERRVAL      retl; nop
  31 #define r0              %o0
  32 #define r1              %o1
  33 #define MOVE(x,y)       mov x, y
  34
  35 #else   /* __ASSEMBLER__ */
  36
  37 #undef INLINE_SYSCALL
  38 #define INLINE_SYSCALL(name, nr, args...)                               \
  39 ({      INTERNAL_SYSCALL_DECL(err);                                     \
  40         unsigned long resultvar = INTERNAL_SYSCALL(name, err, nr, args);\
  41         if (INTERNAL_SYSCALL_ERROR_P (resultvar, err))                  \
  42           {                                                             \
  43             __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, err));      \
  44             resultvar = (unsigned long) -1;                             \
  45           }                                                             \
  46         (long) resultvar;                                               \
  47 })
  48
  49 #undef INTERNAL_SYSCALL_DECL
  50 #define INTERNAL_SYSCALL_DECL(err) \
  51         register long err __asm__("g1");
  52
  53 #undef INTERNAL_SYSCALL
  54 #define INTERNAL_SYSCALL(name, err, nr, args...) \
  55   inline_syscall##nr(__SYSCALL_STRING, err, __NR_##name, args)
  56
  57 #undef INTERNAL_SYSCALL_NCS
  58 #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
  59   inline_syscall##nr(__SYSCALL_STRING, err, name, args)
  60
  61 #undef INTERNAL_SYSCALL_ERROR_P
  62 #define INTERNAL_SYSCALL_ERROR_P(val, err) \
  63   ((void) (val), __builtin_expect((err) != 0, 0))
  64
  65 #undef INTERNAL_SYSCALL_ERRNO
  66 #define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
  67
  68 #define inline_syscall0(string,err,name,dummy...)                       \
  69 ({                                                                      \
  70         register long __o0 __asm__ ("o0");                              \
  71         err = name;                                                     \
  72         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  73                           "0" (err) :                                   \
  74                           __SYSCALL_CLOBBERS);                          \
  75         __o0;                                                           \
  76 })
  77
  78 #define inline_syscall1(string,err,name,arg1)                           \
  79 ({                                                                      \
  80         register long __o0 __asm__ ("o0") = (long)(arg1);               \
  81         err = name;                                                     \
  82         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  83                           "0" (err), "1" (__o0) :                       \
  84                           __SYSCALL_CLOBBERS);                          \
  85         __o0;                                                           \
  86 })
  87
  88 #define inline_syscall2(string,err,name,arg1,arg2)                      \
  89 ({                                                                      \
  90         register long __o0 __asm__ ("o0") = (long)(arg1);               \
  91         register long __o1 __asm__ ("o1") = (long)(arg2);               \
  92         err = name;                                                     \
  93         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  94                           "0" (err), "1" (__o0), "r" (__o1) :           \
  95                           __SYSCALL_CLOBBERS);                          \
  96         __o0;                                                           \
  97 })
  98
  99 #define inline_syscall3(string,err,name,arg1,arg2,arg3)                 \
 100 ({                                                                      \
 101         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 102         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 103         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 104         err = name;                                                     \
 105         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 106                           "0" (err), "1" (__o0), "r" (__o1),            \
 107                           "r" (__o2) :                                  \
 108                           __SYSCALL_CLOBBERS);                          \
 109         __o0;                                                           \
 110 })
 111
 112 #define inline_syscall4(string,err,name,arg1,arg2,arg3,arg4)            \
 113 ({                                                                      \
 114         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 115         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 116         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 117         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 118         err = name;                                                     \
 119         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 120                           "0" (err), "1" (__o0), "r" (__o1),            \
 121                           "r" (__o2), "r" (__o3) :                      \
 122                           __SYSCALL_CLOBBERS);                          \
 123         __o0;                                                           \
 124 })
 125
 126 #define inline_syscall5(string,err,name,arg1,arg2,arg3,arg4,arg5)       \
 127 ({                                                                      \
 128         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 129         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 130         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 131         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 132         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 133         err = name;                                                     \
 134         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 135                           "0" (err), "1" (__o0), "r" (__o1),            \
 136                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 137                           __SYSCALL_CLOBBERS);                          \
 138         __o0;                                                           \
 139 })
 140
 141 #define inline_syscall6(string,err,name,arg1,arg2,arg3,arg4,arg5,arg6)  \
 142 ({                                                                      \
 143         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 144         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 145         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 146         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 147         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 148         register long __o5 __asm__ ("o5") = (long)(arg6);               \
 149         err = name;                                                     \
 150         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 151                           "0" (err), "1" (__o0), "r" (__o1),            \
 152                           "r" (__o2), "r" (__o3), "r" (__o4),           \
 153                           "r" (__o5) :                                  \
 154                           __SYSCALL_CLOBBERS);                          \
 155         __o0;                                                           \
 156 })
 157
 158 #define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5)                  \
 159 ({                                                                      \
 160         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 161         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 162         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 163         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 164         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 165         register long __g1 __asm__ ("g1") = __NR_clone;                 \
 166         __asm __volatile (__SYSCALL_STRING :                            \
 167                           "=r" (__g1), "=r" (__o0), "=r" (__o1) :       \
 168                           "0" (__g1), "1" (__o0), "2" (__o1),           \
 169                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 170                           __SYSCALL_CLOBBERS);                          \
 171         if (INTERNAL_SYSCALL_ERROR_P (__o0, __g1))                      \
 172           {                                                             \
 173             __set_errno (INTERNAL_SYSCALL_ERRNO (__o0, __g1));          \
 174             __o0 = -1L;                                                 \
 175           }                                                             \
 176         else                                                            \
 177           {                                                             \
 178             __o0 &= (__o1 - 1);                                         \
 179           }                                                             \
 180         __o0;                                                           \
 181 })
 182
 183 #endif  /* __ASSEMBLER__ */
 184
 185 #endif /* _LINUX_SPARC_SYSDEP_H */