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

   1 /* Copyright (C) 2000-2019 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 #define INTERNAL_VSYSCALL_CALL(funcptr, err, nr, args...)               \
  38   ({                                                                    \
  39     long _ret = funcptr (args);                                         \
  40     err = ((unsigned long) (_ret) >= (unsigned long) -4095L);           \
  41     _ret;                                                               \
  42   })
  43
  44 /* List of system calls which are supported as vsyscalls.  */
  45 # define HAVE_CLOCK_GETTIME_VSYSCALL    1
  46 # define HAVE_GETTIMEOFDAY_VSYSCALL     1
  47
  48 #undef INLINE_SYSCALL
  49 #define INLINE_SYSCALL(name, nr, args...)                               \
  50 ({      INTERNAL_SYSCALL_DECL(err);                                     \
  51         unsigned long resultvar = INTERNAL_SYSCALL(name, err, nr, args);\
  52         if (INTERNAL_SYSCALL_ERROR_P (resultvar, err))                  \
  53           {                                                             \
  54             __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, err));      \
  55             resultvar = (unsigned long) -1;                             \
  56           }                                                             \
  57         (long) resultvar;                                               \
  58 })
  59
  60 #undef INTERNAL_SYSCALL_DECL
  61 #define INTERNAL_SYSCALL_DECL(err) \
  62         register long err __asm__("g1");
  63
  64 #undef INTERNAL_SYSCALL
  65 #define INTERNAL_SYSCALL(name, err, nr, args...) \
  66   inline_syscall##nr(__SYSCALL_STRING, err, __NR_##name, args)
  67
  68 #undef INTERNAL_SYSCALL_NCS
  69 #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
  70   inline_syscall##nr(__SYSCALL_STRING, err, name, args)
  71
  72 #undef INTERNAL_SYSCALL_ERROR_P
  73 #define INTERNAL_SYSCALL_ERROR_P(val, err) \
  74   ((void) (val), __builtin_expect((err) != 0, 0))
  75
  76 #undef INTERNAL_SYSCALL_ERRNO
  77 #define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
  78
  79 #define inline_syscall0(string,err,name,dummy...)                       \
  80 ({                                                                      \
  81         register long __o0 __asm__ ("o0");                              \
  82         err = name;                                                     \
  83         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  84                           "0" (err) :                                   \
  85                           __SYSCALL_CLOBBERS);                          \
  86         __o0;                                                           \
  87 })
  88
  89 #define inline_syscall1(string,err,name,arg1)                           \
  90 ({                                                                      \
  91         register long __o0 __asm__ ("o0") = (long)(arg1);               \
  92         err = name;                                                     \
  93         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
  94                           "0" (err), "1" (__o0) :                       \
  95                           __SYSCALL_CLOBBERS);                          \
  96         __o0;                                                           \
  97 })
  98
  99 #define inline_syscall2(string,err,name,arg1,arg2)                      \
 100 ({                                                                      \
 101         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 102         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 103         err = name;                                                     \
 104         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 105                           "0" (err), "1" (__o0), "r" (__o1) :           \
 106                           __SYSCALL_CLOBBERS);                          \
 107         __o0;                                                           \
 108 })
 109
 110 #define inline_syscall3(string,err,name,arg1,arg2,arg3)                 \
 111 ({                                                                      \
 112         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 113         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 114         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 115         err = name;                                                     \
 116         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 117                           "0" (err), "1" (__o0), "r" (__o1),            \
 118                           "r" (__o2) :                                  \
 119                           __SYSCALL_CLOBBERS);                          \
 120         __o0;                                                           \
 121 })
 122
 123 #define inline_syscall4(string,err,name,arg1,arg2,arg3,arg4)            \
 124 ({                                                                      \
 125         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 126         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 127         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 128         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 129         err = name;                                                     \
 130         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 131                           "0" (err), "1" (__o0), "r" (__o1),            \
 132                           "r" (__o2), "r" (__o3) :                      \
 133                           __SYSCALL_CLOBBERS);                          \
 134         __o0;                                                           \
 135 })
 136
 137 #define inline_syscall5(string,err,name,arg1,arg2,arg3,arg4,arg5)       \
 138 ({                                                                      \
 139         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 140         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 141         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 142         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 143         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 144         err = name;                                                     \
 145         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 146                           "0" (err), "1" (__o0), "r" (__o1),            \
 147                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 148                           __SYSCALL_CLOBBERS);                          \
 149         __o0;                                                           \
 150 })
 151
 152 #define inline_syscall6(string,err,name,arg1,arg2,arg3,arg4,arg5,arg6)  \
 153 ({                                                                      \
 154         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 155         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 156         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 157         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 158         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 159         register long __o5 __asm__ ("o5") = (long)(arg6);               \
 160         err = name;                                                     \
 161         __asm __volatile (string : "=r" (err), "=r" (__o0) :            \
 162                           "0" (err), "1" (__o0), "r" (__o1),            \
 163                           "r" (__o2), "r" (__o3), "r" (__o4),           \
 164                           "r" (__o5) :                                  \
 165                           __SYSCALL_CLOBBERS);                          \
 166         __o0;                                                           \
 167 })
 168
 169 #define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5)                  \
 170 ({                                                                      \
 171         register long __o0 __asm__ ("o0") = (long)(arg1);               \
 172         register long __o1 __asm__ ("o1") = (long)(arg2);               \
 173         register long __o2 __asm__ ("o2") = (long)(arg3);               \
 174         register long __o3 __asm__ ("o3") = (long)(arg4);               \
 175         register long __o4 __asm__ ("o4") = (long)(arg5);               \
 176         register long __g1 __asm__ ("g1") = __NR_clone;                 \
 177         __asm __volatile (__SYSCALL_STRING :                            \
 178                           "=r" (__g1), "=r" (__o0), "=r" (__o1) :       \
 179                           "0" (__g1), "1" (__o0), "2" (__o1),           \
 180                           "r" (__o2), "r" (__o3), "r" (__o4) :          \
 181                           __SYSCALL_CLOBBERS);                          \
 182         if (INTERNAL_SYSCALL_ERROR_P (__o0, __g1))                      \
 183           {                                                             \
 184             __set_errno (INTERNAL_SYSCALL_ERRNO (__o0, __g1));          \
 185             __o0 = -1L;                                                 \
 186           }                                                             \
 187         else                                                            \
 188           {                                                             \
 189             __o0 &= (__o1 - 1);                                         \
 190           }                                                             \
 191         __o0;                                                           \
 192 })
 193
 194 #endif  /* __ASSEMBLER__ */
 195
 196 #endif /* _LINUX_SPARC_SYSDEP_H */