lunaix-os/includes/lunaix/syscall.h

   1 #ifndef __LUNAIX_SYSCALL_H
   2 #define __LUNAIX_SYSCALL_H
   3
   4 #include <arch/x86/vectors.h>
   5
   6 #define __SYSCALL_fork 1
   7 #define __SYSCALL_yield 2
   8 #define __SYSCALL_sbrk 3
   9 #define __SYSCALL_brk 4
  10 #define __SYSCALL_getpid 5
  11 #define __SYSCALL_getppid 6
  12 #define __SYSCALL_sleep 7
  13 #define __SYSCALL__exit 8
  14 #define __SYSCALL_wait 9
  15 #define __SYSCALL_waitpid 10
  16 #define __SYSCALL_sigreturn 11
  17 #define __SYSCALL_sigprocmask 12
  18 #define __SYSCALL_signal 13
  19 #define __SYSCALL_pause 14
  20 #define __SYSCALL_kill 15
  21 #define __SYSCALL_alarm 16
  22 #define __SYSCALL_sigpending 17
  23 #define __SYSCALL_sigsuspend 18
  24
  25 #define __SYSCALL_open 19
  26 #define __SYSCALL_close 20
  27 #define __SYSCALL_read 21
  28 #define __SYSCALL_write 22
  29 #define __SYSCALL_readdir 23
  30 #define __SYSCALL_mkdir 24
  31 #define __SYSCALL_lseek 25
  32 #define __SYSCALL_geterrno 26
  33 #define __SYSCALL_readlink 27
  34 #define __SYSCALL_readlinkat 28
  35 #define __SYSCALL_rmdir 29
  36 #define __SYSCALL_unlink 30
  37 #define __SYSCALL_unlinkat 31
  38 #define __SYSCALL_link 32
  39 #define __SYSCALL_fsync 33
  40
  41 #define __SYSCALL_MAX 0x100
  42
  43 #ifndef __ASM__
  44
  45 #define SYSCALL_ESTATUS(errno) -((errno) != 0)
  46
  47 void
  48 syscall_install();
  49
  50 #define asmlinkage __attribute__((regparm(0)))
  51
  52 #define __PARAM_MAP1(t1, p1) t1 p1
  53 #define __PARAM_MAP2(t1, p1, ...) t1 p1, __PARAM_MAP1(__VA_ARGS__)
  54 #define __PARAM_MAP3(t1, p1, ...) t1 p1, __PARAM_MAP2(__VA_ARGS__)
  55 #define __PARAM_MAP4(t1, p1, ...) t1 p1, __PARAM_MAP3(__VA_ARGS__)
  56 #define __PARAM_MAP5(t1, p1, ...) t1 p1, __PARAM_MAP4(__VA_ARGS__)
  57 #define __PARAM_MAP6(t1, p1, ...) t1 p1, __PARAM_MAP5(__VA_ARGS__)
  58
  59 #define __DEFINE_LXSYSCALL(rettype, name) asmlinkage rettype __lxsys_##name()
  60
  61 #define __DEFINE_LXSYSCALL1(rettype, name, t1, p1)                             \
  62     asmlinkage rettype __lxsys_##name(__PARAM_MAP1(t1, p1))
  63
  64 #define __DEFINE_LXSYSCALL2(rettype, name, t1, p1, t2, p2)                     \
  65     asmlinkage rettype __lxsys_##name(__PARAM_MAP2(t1, p1, t2, p2))
  66
  67 #define __DEFINE_LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)             \
  68     asmlinkage rettype __lxsys_##name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))
  69
  70 #define __DEFINE_LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)     \
  71     asmlinkage rettype __lxsys_##name(                                         \
  72       __PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))
  73
  74 #define __SYSCALL_INTERRUPTIBLE(code)                                          \
  75     asm("sti");                                                                \
  76     { code };                                                                  \
  77     asm("cli");
  78
  79 #define ___DOINT33(callcode, rettype)                                          \
  80     int v;                                                                     \
  81     asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
  82     return (rettype)v;
  83
  84 #define __LXSYSCALL(rettype, name)                                             \
  85     static rettype name()                                                      \
  86     {                                                                          \
  87         ___DOINT33(__SYSCALL_##name, rettype)                                  \
  88     }
  89
  90 #define __LXSYSCALL1(rettype, name, t1, p1)                                    \
  91     static rettype name(__PARAM_MAP1(t1, p1))                                  \
  92     {                                                                          \
  93         asm("" ::"b"(p1));                                                     \
  94         ___DOINT33(__SYSCALL_##name, rettype)                                  \
  95     }
  96
  97 #define __LXSYSCALL2(rettype, name, t1, p1, t2, p2)                            \
  98     static rettype name(__PARAM_MAP2(t1, p1, t2, p2))                          \
  99     {                                                                          \
 100         asm("\n" ::"b"(p1), "c"(p2));                                          \
 101         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 102     }
 103
 104 #define __LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)                    \
 105     static rettype name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))                  \
 106     {                                                                          \
 107         asm("\n" ::"b"(p1), "c"(p2), "d"(p3));                                 \
 108         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 109     }
 110
 111 #define __LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)            \
 112     static rettype name(__PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))          \
 113     {                                                                          \
 114         asm("\n" ::"b"(p1), "c"(p2), "d"(p3), "D"(p4));                        \
 115         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 116     }
 117 #endif
 118 #endif /* __LUNAIX_SYSCALL_H */