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minix/kernel/system.h
Tomas Hruby 40f440b8cd KCall methods do not depend on m_source and m_type fields 
- substituted the use of the m_source message field by
  caller->p_endpoint in kernel calls. It is the same information, just
  passed more intuitively.
  
- the last dependency on m_type field is removed.
  
- do_unused() is substituted by a check for NULL.

- this pretty much removes the depency of kernel calls on the general
  message format. In the future this may be used to pass the kcall
  arguments in a different structure or registers (x86-64, ARM?) The
  kcall number may be passed in a register already.
2010-06-01 08:54:31 +00:00

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/* Function prototypes for the system library. The prototypes in this file
* are undefined to NULL if the kernel call is not enabled in config.h.
* The implementation is contained in src/kernel/system/.
*
* The system library allows to access system services by doing a kernel call.
* System calls are transformed into request messages to the SYS task that is
* responsible for handling the call. By convention, sys_call() is transformed
* into a message with type SYS_CALL that is handled in a function do_call().
*
* Changes:
* Mar 01, 2010 SYS_CLEAR and SYS_EXIT split (Cristiano Giuffrida)
* Jul 30, 2005 created SYS_INT86 to support BIOS driver (Philip Homburg)
* Jul 13, 2005 created SYS_PRIVCTL to manage services (Jorrit N. Herder)
* Jul 09, 2005 updated SYS_KILL to signal services (Jorrit N. Herder)
* Jun 21, 2005 created SYS_NICE for nice(2) kernel call (Ben J. Gras)
* Jun 21, 2005 created SYS_MEMSET to speed up exec(2) (Ben J. Gras)
* Jan 20, 2005 updated SYS_COPY for virtual_copy() (Jorrit N. Herder)
* Oct 24, 2004 created SYS_GETKSIG to support PM (Jorrit N. Herder)
* Oct 10, 2004 created handler for unused calls (Jorrit N. Herder)
* Sep 09, 2004 updated SYS_EXIT to let services exit (Jorrit N. Herder)
* Aug 25, 2004 rewrote SYS_SETALARM to clean up code (Jorrit N. Herder)
* Jul 13, 2004 created SYS_SEGCTL to support drivers (Jorrit N. Herder)
* May 24, 2004 created SYS_SDEVIO to support drivers (Jorrit N. Herder)
* May 24, 2004 created SYS_GETINFO to retrieve info (Jorrit N. Herder)
* Apr 18, 2004 created SYS_VDEVIO to support drivers (Jorrit N. Herder)
* Feb 24, 2004 created SYS_IRQCTL to support drivers (Jorrit N. Herder)
* Feb 02, 2004 created SYS_DEVIO to support drivers (Jorrit N. Herder)
*/
#ifndef SYSTEM_H
#define SYSTEM_H
/* Common includes for the system library. */
#include "debug.h"
#include "kernel.h"
#include "proto.h"
#include "proc.h"
_PROTOTYPE( int do_exec, (struct proc * caller, message *m_ptr) );
#if ! USE_EXEC
#define do_exec NULL
#endif
_PROTOTYPE( int do_fork, (struct proc * caller, message *m_ptr) );
#if ! USE_FORK
#define do_fork NULL
#endif
_PROTOTYPE( int do_newmap, (struct proc * caller, message *m_ptr) );
#if ! USE_NEWMAP
#define do_newmap NULL
#endif
_PROTOTYPE( int do_clear, (struct proc * caller, message *m_ptr) );
#if ! USE_CLEAR
#define do_clear NULL
#endif
_PROTOTYPE( int do_trace, (struct proc * caller, message *m_ptr) );
#if ! USE_TRACE
#define do_trace NULL
#endif
_PROTOTYPE( int do_runctl, (struct proc * caller, message *m_ptr) );
#if ! USE_RUNCTL
#define do_runctl NULL
#endif
_PROTOTYPE( int do_update, (struct proc * caller, message *m_ptr) );
#if ! USE_UPDATE
#define do_update NULL
#endif
_PROTOTYPE( int do_exit, (struct proc * caller, message *m_ptr) );
#if ! USE_EXIT
#define do_exit NULL
#endif
_PROTOTYPE( int do_copy, (struct proc * caller, message *m_ptr) );
#define do_vircopy do_copy
#if ! (USE_VIRCOPY || USE_PHYSCOPY)
#define do_copy NULL
#endif
_PROTOTYPE( int do_umap, (struct proc * caller, message *m_ptr) );
#if ! USE_UMAP
#define do_umap NULL
#endif
_PROTOTYPE( int do_memset, (struct proc * caller, message *m_ptr) );
#if ! USE_MEMSET
#define do_memset NULL
#endif
_PROTOTYPE( int do_abort, (struct proc * caller, message *m_ptr) );
#if ! USE_ABORT
#define do_abort NULL
#endif
_PROTOTYPE( int do_getinfo, (struct proc * caller, message *m_ptr) );
#if ! USE_GETINFO
#define do_getinfo NULL
#endif
_PROTOTYPE( int do_privctl, (struct proc * caller, message *m_ptr) );
#if ! USE_PRIVCTL
#define do_privctl NULL
#endif
_PROTOTYPE( int do_segctl, (struct proc * caller, message *m_ptr) );
#if ! USE_SEGCTL
#define do_segctl NULL
#endif
_PROTOTYPE( int do_irqctl, (struct proc * caller, message *m_ptr) );
#if ! USE_IRQCTL
#define do_irqctl NULL
#endif
_PROTOTYPE( int do_devio, (struct proc * caller, message *m_ptr) );
#if ! USE_DEVIO
#define do_devio NULL
#endif
_PROTOTYPE( int do_vdevio, (struct proc * caller, message *m_ptr) );
#if ! USE_VDEVIO
#define do_vdevio NULL
#endif
_PROTOTYPE( int do_int86, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_sdevio, (struct proc * caller, message *m_ptr) );
#if ! USE_SDEVIO
#define do_sdevio NULL
#endif
_PROTOTYPE( int do_kill, (struct proc * caller, message *m_ptr) );
#if ! USE_KILL
#define do_kill NULL
#endif
_PROTOTYPE( int do_getksig, (struct proc * caller, message *m_ptr) );
#if ! USE_GETKSIG
#define do_getksig NULL
#endif
_PROTOTYPE( int do_endksig, (struct proc * caller, message *m_ptr) );
#if ! USE_ENDKSIG
#define do_endksig NULL
#endif
_PROTOTYPE( int do_sigsend, (struct proc * caller, message *m_ptr) );
#if ! USE_SIGSEND
#define do_sigsend NULL
#endif
_PROTOTYPE( int do_sigreturn, (struct proc * caller, message *m_ptr) );
#if ! USE_SIGRETURN
#define do_sigreturn NULL
#endif
_PROTOTYPE( int do_times, (struct proc * caller, message *m_ptr) );
#if ! USE_TIMES
#define do_times NULL
#endif
_PROTOTYPE( int do_setalarm, (struct proc * caller, message *m_ptr) );
#if ! USE_SETALARM
#define do_setalarm NULL
#endif
_PROTOTYPE( int do_stime, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_vtimer, (struct proc * caller, message *m_ptr) );
#if ! USE_VTIMER
#define do_vtimer NULL
#endif
_PROTOTYPE( int do_safecopy_to, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_safecopy_from, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_vsafecopy, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_iopenable, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_vmctl, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_setgrant, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_readbios, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_safemap, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_saferevmap, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_safeunmap, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_sprofile, (struct proc * caller, message *m_ptr) );
#if ! SPROFILE
#define do_sprofile NULL
#endif
_PROTOTYPE( int do_cprofile, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_profbuf, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_getmcontext, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_setmcontext, (struct proc * caller, message *m_ptr) );
#if ! USE_MCONTEXT
#define do_getmcontext NULL
#define do_setmcontext NULL
#endif
_PROTOTYPE( int do_schedule, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_schedctl, (struct proc * caller, message *m_ptr) );
_PROTOTYPE( int do_statectl, (struct proc * caller, message *m_ptr) );
#if ! USE_STATECTL
#define do_statectl NULL
#endif
#endif /* SYSTEM_H */
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