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minix/kernel/glo.h

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Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability.
2005-07-14 17:12:12 +02:00
#ifndef GLO_H
#define GLO_H
Initial revision
2005-04-21 16:53:53 +02:00
/* Global variables used in the kernel. This file contains the declarations;
* storage space for the variables is allocated in table.c, because EXTERN is
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
* defined as extern unless the _TABLE definition is seen. We rely on the
Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability.
2005-07-14 17:12:12 +02:00
* compiler's default initialization (0) for several global variables.
Initial revision
2005-04-21 16:53:53 +02:00
*/
#ifdef _TABLE
#undef EXTERN
#define EXTERN
#endif
Added args to lock() and unlock() to tell them apart, for use when lock timing is enabled in minix/config.h. Added phys_zero() routine to klib386.s that zeroes a range of memory, and added corresponding system call.
2005-06-01 11:37:52 +02:00
#include <minix/config.h>
Split of architecture-dependent and -independent functions for i386, mainly in the kernel and headers. This split based on work by Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture port. . kernel does not program the interrupt controller directly, do any other architecture-dependent operations, or contain assembly any more, but uses architecture-dependent functions in arch/$(ARCH)/. . architecture-dependent constants and types defined in arch/$(ARCH)/include. . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now, architecture-independent functions. . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls and live in arch/i386/do_* now. . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have gone, and 'machine.protected' is gone (and always taken to be 1 in i386). If 86 support is to return, it should be a new architecture. . prototypes for the architecture-dependent functions defined in kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h . /etc/make.conf included in makefiles and shell scripts that need to know the building architecture; it defines ARCH=<arch>, currently only i386. . some basic per-architecture build support outside of the kernel (lib) . in clock.c, only dequeue a process if it was ready . fixes for new include files files deleted: . mpx/klib.s - only for choosing between mpx/klib86 and -386 . klib86.s - only for 86 i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/: . mpx386.s (entry point) . klib386.s . sconst.h . exception.c . protect.c . protect.h . i8269.c
2006-12-22 16:22:27 +01:00
#include <archtypes.h>
Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability.
2005-07-14 17:12:12 +02:00
#include "config.h"
Added args to lock() and unlock() to tell them apart, for use when lock timing is enabled in minix/config.h. Added phys_zero() routine to klib386.s that zeroes a range of memory, and added corresponding system call.
2005-06-01 11:37:52 +02:00
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
/* Variables relating to shutting down MINIX. */
EXTERN char kernel_exception; /* TRUE after system exceptions */
Added shutdown_started global variable. If it's set, we're in the process of doing a shutdown. Initial purpose is - suppress dead process diagnostic message.
2005-09-08 16:31:23 +02:00
EXTERN char shutdown_started; /* TRUE after shutdowns / reboots */
Initial revision
2005-04-21 16:53:53 +02:00
*** empty log message ***
2005-04-29 17:36:43 +02:00
/* Kernel information structures. This groups vital kernel information. */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN phys_bytes aout; /* address of a.out headers */
EXTERN struct kinfo kinfo; /* kernel information for users */
EXTERN struct machine machine; /* machine information for users */
EXTERN struct kmessages kmess; /* diagnostic messages in kernel */
EXTERN struct randomness krandom; /* gather kernel random information */
load average measurement implementation, accessable through getloadavg() system call in the library.
2005-11-14 16:50:46 +01:00
EXTERN struct loadinfo kloadinfo; /* status of load average */
Initial revision
2005-04-21 16:53:53 +02:00
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
/* Process scheduling information and the kernel reentry count. */
Rewrite of process scheduling: - current and maximum priority per process; - quantum size and current ticks left per process; - max number of full quantums in a row allow (otherwise current priority is decremented)
2005-06-30 17:55:19 +02:00
EXTERN struct proc *prev_ptr; /* previously running process */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN struct proc *proc_ptr; /* pointer to currently running process */
Cleaned up process table structure: removed p_type, p_pendcount. Removed stop sequence when MINIX is shut down. Disabled send mask checks --- to be replaced by proper mechanism. Fixed bug relating to 'shutdown -x'. Simplified clock accounting of realtime. Updated Makefiles for mkdept script.
2005-06-24 18:24:40 +02:00
EXTERN struct proc *next_ptr; /* next process to run after restart() */
EXTERN struct proc *bill_ptr; /* process to bill for clock ticks */
New NOTIFY system call! Queued at kernel. Duplicate messages (with same source and type) are overwritten with newer flags/ arguments. The interface from within the kernel is lock_notify(). User processes can make a system call with notify(). NOTIFY fully replaces the old notification mechanism.
2005-05-24 12:06:17 +02:00
EXTERN char k_reenter; /* kernel reentry count (entry count less 1) */
EXTERN unsigned lost_ticks; /* clock ticks counted outside clock task */
Initial revision
2005-04-21 16:53:53 +02:00
/* Interrupt related variables. */
*** empty log message ***
2005-05-02 16:30:04 +02:00
EXTERN irq_hook_t irq_hooks[NR_IRQ_HOOKS]; /* hooks for general use */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN int irq_actids[NR_IRQ_VECTORS]; /* IRQ ID bits active */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN int irq_use; /* map of all in-use irq's */
Initial revision
2005-04-21 16:53:53 +02:00
/* Miscellaneous. */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
EXTERN reg_t mon_ss, mon_sp; /* boot monitor stack */
EXTERN int mon_return; /* true if we can return to monitor */
IOPL, VM, and serial debug output (disabled).
2005-09-30 14:54:59 +02:00
EXTERN int do_serial_debug;
Use endpoint_t. New prototypes for related to grants and safecopy functions.
2006-06-20 11:57:00 +02:00
EXTERN endpoint_t who_e; /* message source endpoint */
EXTERN int who_p; /* message source proc */
EXTERN int sys_call_code; /* kernel call number in SYSTEM */
IOPL, VM, and serial debug output (disabled).
2005-09-30 14:54:59 +02:00
/* VM */
EXTERN phys_bytes vm_base;
EXTERN phys_bytes vm_size;
EXTERN phys_bytes vm_mem_high;
Initial revision
2005-04-21 16:53:53 +02:00
/* Variables that are initialized elsewhere are just extern here. */
- Kernel call handlers cleaned up. More strict checking of input parameters. - Moved generic_handler() from system.c to system/do_irqctl.c. - Set privileges of system processes somewhat stricter.
2005-07-29 17:26:23 +02:00
extern struct boot_image image[]; /* system image processes */
Various updates. * Removed some variants of the SYS_GETINFO calls from the kernel; replaced them with new PM and utils libary functionality. Fixed bugs in utils library that used old get_kenv() variant. * Implemented a buffer in the kernel to gather random data. Memory driver periodically checks this for /dev/random. A better random algorithm can now be implemented in the driver. Removed SYS_RANDOM; the SYS_GETINFO call is used instead. * Remove SYS_KMALLOC from the kernel. Memory allocation can now be done at the process manager with new 'other' library functions.
2005-06-03 15:55:06 +02:00
extern char *t_stack[]; /* task stack space */
extern struct segdesc_s gdt[]; /* global descriptor table */
Initial revision
2005-04-21 16:53:53 +02:00
EXTERN _PROTOTYPE( void (*level0_func), (void) );
Reorganized system call library; uses separate file per call now. New configuration header file to include/ exclude functionality. Extracted privileged features from struct proc and create new struct priv. Renamed various system calls for readability.
2005-07-14 17:12:12 +02:00
#endif /* GLO_H */
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