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
  17 #define __SYSCALL_sigreturn 11
  18 #define __SYSCALL_sigprocmask 12
  19 #define __SYSCALL_signal 13
  20 #define __SYSCALL_pause 14
  21 #define __SYSCALL_kill 15
  22 #define __SYSCALL_alarm 16
  23 #define __SYSCALL_sigpending 17
  24 #define __SYSCALL_sigsuspend 18
  25 #define __SYSCALL_open 19
  26 #define __SYSCALL_close 20
  27
  28 #define __SYSCALL_read 21
  29 #define __SYSCALL_write 22
  30 #define __SYSCALL_sys_readdir 23
  31 #define __SYSCALL_mkdir 24
  32 #define __SYSCALL_lseek 25
  33 #define __SYSCALL_geterrno 26
  34 #define __SYSCALL_readlink 27
  35 #define __SYSCALL_readlinkat 28
  36 #define __SYSCALL_rmdir 29
  37
  38 #define __SYSCALL_unlink 30
  39 #define __SYSCALL_unlinkat 31
  40 #define __SYSCALL_link 32
  41 #define __SYSCALL_fsync 33
  42 #define __SYSCALL_dup 34
  43 #define __SYSCALL_dup2 35
  44 #define __SYSCALL_realpathat 36
  45 #define __SYSCALL_symlink 37
  46 #define __SYSCALL_chdir 38
  47 #define __SYSCALL_fchdir 39
  48 #define __SYSCALL_getcwd 40
  49 #define __SYSCALL_rename 41
  50 #define __SYSCALL_mount 42
  51 #define __SYSCALL_unmount 43
  52 #define __SYSCALL_getxattr 44
  53 #define __SYSCALL_setxattr 45
  54 #define __SYSCALL_fgetxattr 46
  55 #define __SYSCALL_fsetxattr 47
  56
  57 #define __SYSCALL_ioctl 48
  58 #define __SYSCALL_getpgid 49
  59 #define __SYSCALL_setpgid 50
  60
  61 #define __SYSCALL_syslog 51
  62
  63 #define __SYSCALL_sys_mmap 52
  64 #define __SYSCALL_munmap 53
  65
  66 #define __SYSCALL_MAX 0x100
  67
  68 #ifndef __ASM__
  69
  70 #define SYSCALL_ESTATUS(errno) -((errno) != 0)
  71
  72 void
  73 syscall_install();
  74
  75 #define asmlinkage __attribute__((regparm(0)))
  76
  77 #define __PARAM_MAP1(t1, p1) t1 p1
  78 #define __PARAM_MAP2(t1, p1, ...) t1 p1, __PARAM_MAP1(__VA_ARGS__)
  79 #define __PARAM_MAP3(t1, p1, ...) t1 p1, __PARAM_MAP2(__VA_ARGS__)
  80 #define __PARAM_MAP4(t1, p1, ...) t1 p1, __PARAM_MAP3(__VA_ARGS__)
  81 #define __PARAM_MAP5(t1, p1, ...) t1 p1, __PARAM_MAP4(__VA_ARGS__)
  82 #define __PARAM_MAP6(t1, p1, ...) t1 p1, __PARAM_MAP5(__VA_ARGS__)
  83
  84 #define __DEFINE_LXSYSCALL(rettype, name) asmlinkage rettype __lxsys_##name()
  85
  86 #define __DEFINE_LXSYSCALL1(rettype, name, t1, p1)                             \
  87     asmlinkage rettype __lxsys_##name(__PARAM_MAP1(t1, p1))
  88
  89 #define __DEFINE_LXSYSCALL2(rettype, name, t1, p1, t2, p2)                     \
  90     asmlinkage rettype __lxsys_##name(__PARAM_MAP2(t1, p1, t2, p2))
  91
  92 #define __DEFINE_LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)             \
  93     asmlinkage rettype __lxsys_##name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))
  94
  95 #define __DEFINE_LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)     \
  96     asmlinkage rettype __lxsys_##name(                                         \
  97       __PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))
  98
  99 #define __DEFINE_LXSYSCALL5(                                                   \
 100   rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)                       \
 101     asmlinkage rettype __lxsys_##name(                                         \
 102       __PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))
 103
 104 #define __SYSCALL_INTERRUPTIBLE(code)                                          \
 105     asm("sti");                                                                \
 106     { code };                                                                  \
 107     asm("cli");
 108
 109 #define ___DOINT33(callcode, rettype)                                          \
 110     int v;                                                                     \
 111     asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
 112     return (rettype)v;
 113
 114 #define __LXSYSCALL(rettype, name)                                             \
 115     static rettype name()                                                      \
 116     {                                                                          \
 117         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 118     }
 119
 120 #define __LXSYSCALL1(rettype, name, t1, p1)                                    \
 121     static rettype name(__PARAM_MAP1(t1, p1))                                  \
 122     {                                                                          \
 123         asm("" ::"b"(p1));                                                     \
 124         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 125     }
 126
 127 #define __LXSYSCALL2(rettype, name, t1, p1, t2, p2)                            \
 128     static rettype name(__PARAM_MAP2(t1, p1, t2, p2))                          \
 129     {                                                                          \
 130         asm("\n" ::"b"(p1), "c"(p2));                                          \
 131         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 132     }
 133
 134 #define __LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)                    \
 135     static rettype name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))                  \
 136     {                                                                          \
 137         asm("\n" ::"b"(p1), "c"(p2), "d"(p3));                                 \
 138         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 139     }
 140
 141 #define __LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)            \
 142     static rettype name(__PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))          \
 143     {                                                                          \
 144         asm("\n" ::"b"(p1), "c"(p2), "d"(p3), "D"(p4));                        \
 145         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 146     }
 147
 148 #define __LXSYSCALL5(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)    \
 149     static rettype name(__PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))  \
 150     {                                                                          \
 151         asm("" ::"r"(p5), "b"(p1), "c"(p2), "d"(p3), "D"(p4), "S"(p5));        \
 152         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 153     }
 154
 155 #define __LXSYSCALL2_VARG(rettype, name, t1, p1, t2, p2)                       \
 156     __attribute__((noinline)) static rettype name(                             \
 157       __PARAM_MAP2(t1, p1, t2, p2), ...)                                       \
 158     {                                                                          \
 159         /* No inlining! This depends on the call frame assumption */           \
 160         void* _last = (void*)&p2 + sizeof(void*);                              \
 161         asm("\n" ::"b"(p1), "c"(p2), "d"(_last));                              \
 162         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 163     }
 164
 165 #endif
 166 #endif /* __LUNAIX_SYSCALL_H */