kernel/system.h

   1 /* Function prototypes for the system library.  The prototypes in this file
   2  * are undefined to do_unused if the kernel call is not enabled in config.h.
   3  * The implementation is contained in src/kernel/system/.
   4  *
   5  * The system library allows to access system services by doing a kernel call.
   6  * System calls are transformed into request messages to the SYS task that is
   7  * responsible for handling the call. By convention, sys_call() is transformed
   8  * into a message with type SYS_CALL that is handled in a function do_call().
   9  *
  10  * Changes:
  11  *   Jul 30, 2005   created SYS_INT86 to support BIOS driver  (Philip Homburg)
  12  *   Jul 13, 2005   created SYS_PRIVCTL to manage services  (Jorrit N. Herder)
  13  *   Jul 09, 2005   updated SYS_KILL to signal services  (Jorrit N. Herder)
  14  *   Jun 21, 2005   created SYS_NICE for nice(2) kernel call  (Ben J. Gras)
  15  *   Jun 21, 2005   created SYS_MEMSET to speed up exec(2)  (Ben J. Gras)
  16  *   Apr 12, 2005   updated SYS_VCOPY for virtual_copy()  (Jorrit N. Herder)
  17  *   Jan 20, 2005   updated SYS_COPY for virtual_copy()  (Jorrit N. Herder)
  18  *   Oct 24, 2004   created SYS_GETKSIG to support PM  (Jorrit N. Herder)
  19  *   Oct 10, 2004   created handler for unused calls  (Jorrit N. Herder)
  20  *   Sep 09, 2004   updated SYS_EXIT to let services exit  (Jorrit N. Herder)
  21  *   Aug 25, 2004   rewrote SYS_SETALARM to clean up code  (Jorrit N. Herder)
  22  *   Jul 13, 2004   created SYS_SEGCTL to support drivers  (Jorrit N. Herder)
  23  *   May 24, 2004   created SYS_SDEVIO to support drivers  (Jorrit N. Herder)
  24  *   May 24, 2004   created SYS_GETINFO to retrieve info  (Jorrit N. Herder)
  25  *   Apr 18, 2004   created SYS_VDEVIO to support drivers  (Jorrit N. Herder)
  26  *   Feb 24, 2004   created SYS_IRQCTL to support drivers  (Jorrit N. Herder)
  27  *   Feb 02, 2004   created SYS_DEVIO to support drivers  (Jorrit N. Herder)
  28  */
  29
  30 #ifndef SYSTEM_H
  31 #define SYSTEM_H
  32
  33 /* Common includes for the system library. */
  34 #include "kernel.h"
  35 #include "proto.h"
  36 #include "proc.h"
  37
  38 /* Default handler for unused kernel calls. */
  39 _PROTOTYPE( int do_unused, (message *m_ptr) );
  40
  41 _PROTOTYPE( int do_exec, (message *m_ptr) );
  42 #if ! USE_EXEC
  43 #define do_exec do_unused
  44 #endif
  45
  46 _PROTOTYPE( int do_fork, (message *m_ptr) );
  47 #if ! USE_FORK
  48 #define do_fork do_unused
  49 #endif
  50
  51 _PROTOTYPE( int do_newmap, (message *m_ptr) );
  52 #if ! USE_NEWMAP
  53 #define do_newmap do_unused
  54 #endif
  55
  56 _PROTOTYPE( int do_exit, (message *m_ptr) );
  57 #if ! USE_EXIT
  58 #define do_exit do_unused
  59 #endif
  60
  61 _PROTOTYPE( int do_trace, (message *m_ptr) );
  62 #if ! USE_TRACE
  63 #define do_trace do_unused
  64 #endif
  65
  66 _PROTOTYPE( int do_nice, (message *m_ptr) );
  67 #if ! USE_NICE
  68 #define do_nice do_unused
  69 #endif
  70
  71 _PROTOTYPE( int do_copy, (message *m_ptr) );
  72 #define do_vircopy      do_copy
  73 #define do_physcopy     do_copy
  74 #if ! (USE_VIRCOPY || USE_PHYSCOPY)
  75 #define do_copy do_unused
  76 #endif
  77
  78 _PROTOTYPE( int do_vcopy, (message *m_ptr) );
  79 #define do_virvcopy     do_vcopy
  80 #define do_physvcopy    do_vcopy
  81 #if ! (USE_VIRVCOPY || USE_PHYSVCOPY)
  82 #define do_vcopy do_unused
  83 #endif
  84
  85 _PROTOTYPE( int do_umap, (message *m_ptr) );
  86 #if ! USE_UMAP
  87 #define do_umap do_unused
  88 #endif
  89
  90 _PROTOTYPE( int do_memset, (message *m_ptr) );
  91 #if ! USE_MEMSET
  92 #define do_memset do_unused
  93 #endif
  94
  95 _PROTOTYPE( int do_abort, (message *m_ptr) );
  96 #if ! USE_ABORT
  97 #define do_abort do_unused
  98 #endif
  99
 100 _PROTOTYPE( int do_getinfo, (message *m_ptr) );
 101 #if ! USE_GETINFO
 102 #define do_getinfo do_unused
 103 #endif
 104
 105 _PROTOTYPE( int do_privctl, (message *m_ptr) );
 106 #if ! USE_PRIVCTL
 107 #define do_privctl do_unused
 108 #endif
 109
 110 _PROTOTYPE( int do_segctl, (message *m_ptr) );
 111 #if ! USE_SEGCTL
 112 #define do_segctl do_unused
 113 #endif
 114
 115 _PROTOTYPE( int do_irqctl, (message *m_ptr) );
 116 #if ! USE_IRQCTL
 117 #define do_irqctl do_unused
 118 #endif
 119
 120 _PROTOTYPE( int do_devio, (message *m_ptr) );
 121 #if ! USE_DEVIO
 122 #define do_devio do_unused
 123 #endif
 124
 125 _PROTOTYPE( int do_vdevio, (message *m_ptr) );
 126 #if ! USE_VDEVIO
 127 #define do_vdevio do_unused
 128 #endif
 129
 130 _PROTOTYPE( int do_int86, (message *m_ptr) );
 131
 132 _PROTOTYPE( int do_sdevio, (message *m_ptr) );
 133 #if ! USE_SDEVIO
 134 #define do_sdevio do_unused
 135 #endif
 136
 137 _PROTOTYPE( int do_kill, (message *m_ptr) );
 138 #if ! USE_KILL
 139 #define do_kill do_unused
 140 #endif
 141
 142 _PROTOTYPE( int do_getksig, (message *m_ptr) );
 143 #if ! USE_GETKSIG
 144 #define do_getksig do_unused
 145 #endif
 146
 147 _PROTOTYPE( int do_endksig, (message *m_ptr) );
 148 #if ! USE_ENDKSIG
 149 #define do_endksig do_unused
 150 #endif
 151
 152 _PROTOTYPE( int do_sigsend, (message *m_ptr) );
 153 #if ! USE_SIGSEND
 154 #define do_sigsend do_unused
 155 #endif
 156
 157 _PROTOTYPE( int do_sigreturn, (message *m_ptr) );
 158 #if ! USE_SIGRETURN
 159 #define do_sigreturn do_unused
 160 #endif
 161
 162 _PROTOTYPE( int do_times, (message *m_ptr) );
 163 #if ! USE_TIMES
 164 #define do_times do_unused
 165 #endif
 166
 167 _PROTOTYPE( int do_setalarm, (message *m_ptr) );
 168 #if ! USE_SETALARM
 169 #define do_setalarm do_unused
 170 #endif
 171
 172 #endif  /* SYSTEM_H */
 173