30804b9ed7
be used concurrently. pass the function in eax instead; this gets rid of the global variable. also execute the function directly if we're already trapped into the kernel. revert of u32_t endpoint_t to int (some code assumes endpoints are negative for negative slot numbers).
81 lines
3 KiB
C
Executable file
81 lines
3 KiB
C
Executable file
#ifndef GLO_H
|
|
#define GLO_H
|
|
|
|
#include <minix/sysutil.h>
|
|
|
|
/* Global variables used in the kernel. This file contains the declarations;
|
|
* storage space for the variables is allocated in table.c, because EXTERN is
|
|
* defined as extern unless the _TABLE definition is seen. We rely on the
|
|
* compiler's default initialization (0) for several global variables.
|
|
*/
|
|
#ifdef _TABLE
|
|
#undef EXTERN
|
|
#define EXTERN
|
|
#endif
|
|
|
|
#include <minix/config.h>
|
|
#include <archtypes.h>
|
|
#include "config.h"
|
|
#include "debug.h"
|
|
|
|
/* Variables relating to shutting down MINIX. */
|
|
EXTERN char kernel_exception; /* TRUE after system exceptions */
|
|
EXTERN char shutdown_started; /* TRUE after shutdowns / reboots */
|
|
|
|
/* Kernel information structures. This groups vital kernel information. */
|
|
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 k_randomness krandom; /* gather kernel random information */
|
|
EXTERN struct loadinfo kloadinfo; /* status of load average */
|
|
|
|
/* Process scheduling information and the kernel reentry count. */
|
|
EXTERN struct proc *proc_ptr; /* pointer to currently running process */
|
|
EXTERN struct proc *next_ptr; /* next process to run after restart() */
|
|
EXTERN struct proc *prev_ptr;
|
|
EXTERN struct proc *bill_ptr; /* process to bill for clock ticks */
|
|
EXTERN struct proc *vmrestart; /* first process on vmrestart queue */
|
|
EXTERN struct proc *vmrequest; /* first process on vmrequest queue */
|
|
EXTERN struct proc *pagefaults; /* first process on pagefault queue */
|
|
EXTERN char k_reenter; /* kernel reentry count (entry count less 1) */
|
|
EXTERN unsigned lost_ticks; /* clock ticks counted outside clock task */
|
|
|
|
|
|
/* Interrupt related variables. */
|
|
EXTERN irq_hook_t irq_hooks[NR_IRQ_HOOKS]; /* hooks for general use */
|
|
EXTERN int irq_actids[NR_IRQ_VECTORS]; /* IRQ ID bits active */
|
|
EXTERN int irq_use; /* map of all in-use irq's */
|
|
EXTERN u32_t system_hz; /* HZ value */
|
|
|
|
/* Miscellaneous. */
|
|
EXTERN reg_t mon_ss, mon_sp; /* boot monitor stack */
|
|
EXTERN int mon_return; /* true if we can return to monitor */
|
|
EXTERN int do_serial_debug;
|
|
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 */
|
|
EXTERN time_t boottime;
|
|
EXTERN char params_buffer[512]; /* boot monitor parameters */
|
|
EXTERN int minix_panicing;
|
|
EXTERN int locklevel;
|
|
#define MAGICTEST 0xC0FFEE23
|
|
EXTERN u32_t magictest; /* global magic number */
|
|
|
|
#if DEBUG_TRACE
|
|
EXTERN int verboseflags;
|
|
#endif
|
|
|
|
/* VM */
|
|
EXTERN int vm_running;
|
|
EXTERN int catch_pagefaults;
|
|
EXTERN struct proc *ptproc;
|
|
|
|
/* Timing */
|
|
EXTERN util_timingdata_t timingdata[TIMING_CATEGORIES];
|
|
|
|
/* Variables that are initialized elsewhere are just extern here. */
|
|
extern struct boot_image image[]; /* system image processes */
|
|
extern char *t_stack[]; /* task stack space */
|
|
extern struct segdesc_s gdt[]; /* global descriptor table */
|
|
|
|
#endif /* GLO_H */
|