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
  36 #define __SYSCALL_MAX 0x100
  37
  38 #ifndef __ASM__
  39
  40 #define SYSCALL_ESTATUS(errno) -(errno != 0)
  41
  42 void
  43 syscall_install();
  44
  45 #define asmlinkage __attribute__((regparm(0)))
  46
  47 #define __PARAM_MAP1(t1, p1) t1 p1
  48 #define __PARAM_MAP2(t1, p1, ...) t1 p1, __PARAM_MAP1(__VA_ARGS__)
  49 #define __PARAM_MAP3(t1, p1, ...) t1 p1, __PARAM_MAP2(__VA_ARGS__)
  50 #define __PARAM_MAP4(t1, p1, ...) t1 p1, __PARAM_MAP3(__VA_ARGS__)
  51 #define __PARAM_MAP5(t1, p1, ...) t1 p1, __PARAM_MAP4(__VA_ARGS__)
  52 #define __PARAM_MAP6(t1, p1, ...) t1 p1, __PARAM_MAP5(__VA_ARGS__)
  53
  54 #define __DEFINE_LXSYSCALL(rettype, name) asmlinkage rettype __lxsys_##name()
  55
  56 #define __DEFINE_LXSYSCALL1(rettype, name, t1, p1)                             \
  57     asmlinkage rettype __lxsys_##name(__PARAM_MAP1(t1, p1))
  58
  59 #define __DEFINE_LXSYSCALL2(rettype, name, t1, p1, t2, p2)                     \
  60     asmlinkage rettype __lxsys_##name(__PARAM_MAP2(t1, p1, t2, p2))
  61
  62 #define __DEFINE_LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)             \
  63     asmlinkage rettype __lxsys_##name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))
  64
  65 #define __DEFINE_LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)     \
  66     asmlinkage rettype __lxsys_##name(                                         \
  67       __PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))
  68
  69 #define __SYSCALL_INTERRUPTIBLE(code)                                          \
  70     asm("sti");                                                                \
  71     { code };                                                                  \
  72     asm("cli");
  73
  74 #define ___DOINT33(callcode, rettype)                                          \
  75     int v;                                                                     \
  76     asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
  77     return (rettype)v;
  78
  79 #define __LXSYSCALL(rettype, name)                                             \
  80     static rettype name()                                                      \
  81     {                                                                          \
  82         ___DOINT33(__SYSCALL_##name, rettype)                                  \
  83     }
  84
  85 #define __LXSYSCALL1(rettype, name, t1, p1)                                    \
  86     static rettype name(__PARAM_MAP1(t1, p1))                                  \
  87     {                                                                          \
  88         asm("" ::"b"(p1));                                                     \
  89         ___DOINT33(__SYSCALL_##name, rettype)                                  \
  90     }
  91
  92 #define __LXSYSCALL2(rettype, name, t1, p1, t2, p2)                            \
  93     static rettype name(__PARAM_MAP2(t1, p1, t2, p2))                          \
  94     {                                                                          \
  95         asm("\n" ::"b"(p1), "c"(p2));                                          \
  96         ___DOINT33(__SYSCALL_##name, rettype)                                  \
  97     }
  98
  99 #define __LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)                    \
 100     static rettype name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))                  \
 101     {                                                                          \
 102         asm("\n" ::"b"(p1), "c"(p2), "d"(p3));                                 \
 103         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 104     }
 105
 106 #define __LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)            \
 107     static rettype name(__PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))          \
 108     {                                                                          \
 109         asm("\n" ::"b"(p1), "c"(p2), "d"(p3), "D"(p4));                        \
 110         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 111     }
 112 #endif
 113 #endif /* __LUNAIX_SYSCALL_H */