85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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global.c
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Forrest Yu, 2005
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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/*
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* To make things more direct. In the headers below,
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* the variable will be defined here.
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* added by xw, 18/6/17
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*/
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// #define GLOBAL_VARIABLES_HERE
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#include "const.h"
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#include "type.h"
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#include "protect.h"
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#include "proc.h"
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#include "global.h"
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#include "proto.h"
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#include "fs_const.h"
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#include "hd.h"
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#include "fs.h"
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#include "fat32.h" //added by mingxuan 2019-5-17
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#include "vfs.h" //added by mingxuan 2019-5-17
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int kernel_initial;
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int ticks;
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int disp_pos;
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u8 gdt_ptr[6];
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DESCRIPTOR gdt[GDT_SIZE];
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u8 idt_ptr[6];
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GATE idt[IDT_SIZE];
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u32 k_reenter;
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int u_proc_sum;
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TSS tss;
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PROCESS *p_proc_current;
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PROCESS *p_proc_next;
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u32 cr3_ready;
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/* save the execution environment of each cpu, which doesn't belong to any process.
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* added by xw, 18/6/1
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*/
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PROCESS cpu_table[NR_CPUS];
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PROCESS proc_table[NR_PCBS]; // edit by visual 2016.4.5
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TASK task_table[NR_TASKS] = {
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{hd_service, STACK_SIZE_TASK, "hd_service"},
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{task_tty, STACK_SIZE_TASK, "task_tty"}}; // added by xw, 18/8/27
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irq_handler irq_table[NR_IRQ];
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system_call sys_call_table[NR_SYS_CALL] = {
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sys_get_ticks, // 1st
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sys_get_pid, // add by visual 2016.4.6
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sys_kmalloc, // add by visual 2016.4.6
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sys_kmalloc_4k, // add by visual 2016.4.7
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sys_malloc, // add by visual 2016.4.7 //5th
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sys_malloc_4k, // add by visual 2016.4.7
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sys_free, // add by visual 2016.4.7
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sys_free_4k, // add by visual 2016.4.7
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sys_fork, // add by visual 2016.4.8
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sys_pthread, // add by visual 2016.4.11 //10th
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sys_udisp_int, // add by visual 2016.5.16
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sys_udisp_str, // add by visual 2016.5.16
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sys_exec, // add by visual 2016.5.16
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sys_yield, // added by xw
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sys_sleep, // added by xw //15th
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sys_print_E, // added by xw
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sys_print_F, // added by xw
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sys_open, // added by xw, 18/6/18
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sys_close, // added by xw, 18/6/18
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sys_read, // added by xw, 18/6/18 //20th
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sys_write, // added by xw, 18/6/18
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sys_lseek, // added by xw, 18/6/18
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sys_unlink, // added by xw, 18/6/19 //23th
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sys_create, // added by mingxuan 2019-5-17
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sys_delete, // added by mingxuan 2019-5-17
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sys_opendir, // added by mingxuan 2019-5-17
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sys_createdir, // added by mingxuan 2019-5-17
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sys_deletedir // added by mingxuan 2019-5-17
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};
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TTY tty_table[NR_CONSOLES]; // added by mingxuan 2019-5-19
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CONSOLE console_table[NR_CONSOLES]; // added by mingxuan 2019-5-19
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