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_execve 54
  67
  68 #define __SYSCALL_MAX 0x100
  69
  70 #ifndef __ASM__
  71
  72 #define SYSCALL_ESTATUS(errno) -((errno) != 0)
  73
  74 void
  75 syscall_install();
  76
  77 #define asmlinkage __attribute__((regparm(0)))
  78
  79 #define __PARAM_MAP1(t1, p1) t1 p1
  80 #define __PARAM_MAP2(t1, p1, ...) t1 p1, __PARAM_MAP1(__VA_ARGS__)
  81 #define __PARAM_MAP3(t1, p1, ...) t1 p1, __PARAM_MAP2(__VA_ARGS__)
  82 #define __PARAM_MAP4(t1, p1, ...) t1 p1, __PARAM_MAP3(__VA_ARGS__)
  83 #define __PARAM_MAP5(t1, p1, ...) t1 p1, __PARAM_MAP4(__VA_ARGS__)
  84 #define __PARAM_MAP6(t1, p1, ...) t1 p1, __PARAM_MAP5(__VA_ARGS__)
  85
  86 #define __DEFINE_LXSYSCALL(rettype, name) asmlinkage rettype __lxsys_##name()
  87
  88 #define __DEFINE_LXSYSCALL1(rettype, name, t1, p1)                             \
  89     asmlinkage rettype __lxsys_##name(__PARAM_MAP1(t1, p1))
  90
  91 #define __DEFINE_LXSYSCALL2(rettype, name, t1, p1, t2, p2)                     \
  92     asmlinkage rettype __lxsys_##name(__PARAM_MAP2(t1, p1, t2, p2))
  93
  94 #define __DEFINE_LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)             \
  95     asmlinkage rettype __lxsys_##name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))
  96
  97 #define __DEFINE_LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)     \
  98     asmlinkage rettype __lxsys_##name(                                         \
  99       __PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))
 100
 101 #define __DEFINE_LXSYSCALL5(                                                   \
 102   rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)                       \
 103     asmlinkage rettype __lxsys_##name(                                         \
 104       __PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))
 105
 106 #define __SYSCALL_INTERRUPTIBLE(code)                                          \
 107     asm("sti");                                                                \
 108     { code };                                                                  \
 109     asm("cli");
 110
 111 #define ___DOINT33(callcode, rettype)                                          \
 112     int v;                                                                     \
 113     asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
 114     return (rettype)v;
 115
 116 #define __LXSYSCALL(rettype, name)                                             \
 117     rettype name()                                                             \
 118     {                                                                          \
 119         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 120     }
 121
 122 #define __LXSYSCALL1(rettype, name, t1, p1)                                    \
 123     rettype name(__PARAM_MAP1(t1, p1))                                         \
 124     {                                                                          \
 125         asm("" ::"b"(p1));                                                     \
 126         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 127     }
 128
 129 #define __LXSYSCALL2(rettype, name, t1, p1, t2, p2)                            \
 130     rettype name(__PARAM_MAP2(t1, p1, t2, p2))                                 \
 131     {                                                                          \
 132         asm("\n" ::"b"(p1), "c"(p2));                                          \
 133         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 134     }
 135
 136 #define __LXSYSCALL3(rettype, name, t1, p1, t2, p2, t3, p3)                    \
 137     rettype name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))                         \
 138     {                                                                          \
 139         asm("\n" ::"b"(p1), "c"(p2), "d"(p3));                                 \
 140         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 141     }
 142
 143 #define __LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)            \
 144     rettype name(__PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))                 \
 145     {                                                                          \
 146         asm("\n" ::"b"(p1), "c"(p2), "d"(p3), "D"(p4));                        \
 147         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 148     }
 149
 150 #define __LXSYSCALL5(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)    \
 151     rettype name(__PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))         \
 152     {                                                                          \
 153         asm("" ::"r"(p5), "b"(p1), "c"(p2), "d"(p3), "D"(p4), "S"(p5));        \
 154         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 155     }
 156
 157 #define __LXSYSCALL2_VARG(rettype, name, t1, p1, t2, p2)                       \
 158     __attribute__((noinline)) rettype name(__PARAM_MAP2(t1, p1, t2, p2), ...)  \
 159     {                                                                          \
 160         /* No inlining! This depends on the call frame assumption */           \
 161         void* _last = (void*)&p2 + sizeof(void*);                              \
 162         asm("\n" ::"b"(p1), "c"(p2), "d"(_last));                              \
 163         ___DOINT33(__SYSCALL_##name, rettype)                                  \
 164     }
 165
 166 #endif
 167 #endif /* __LUNAIX_SYSCALL_H */