starnakin/42_KFS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feature: start to implements isrs

Browse Source
This commit is contained in:
0x35c 2024-10-01 20:24:33 +02:00
parent 5fe4d12c12
commit 64a3f6ee0d
6 changed files with 167 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
headers/interrupts.h Normal file
View File

@ -0,0 +1,3 @@
#pragma once
void exception_handler(void);

77
src/interrupt/handler.c Normal file
View File

@ -0,0 +1,77 @@
#include "interrupts.h"
#include "kprintf.h"
#include <stdint.h>
void exception_handler(void)
{
int8_t index = -1;
__asm__ volatile("movb %%al, %0" ::"m"(index));
kprintf(KERN_CRIT "interrupt: ");
switch (index) {
case 0:
kprintf(KERN_CRIT "division by zero");
break;
case 1:
kprintf(KERN_CRIT "debugger");
break;
case 2:
kprintf(KERN_CRIT "NMI");
break;
case 3:
kprintf(KERN_CRIT "breakpoint");
break;
case 4:
kprintf(KERN_CRIT "overflow");
break;
case 5:
kprintf(KERN_CRIT "bounds");
break;
case 6:
kprintf(KERN_CRIT "invalid opcode");
break;
case 7:
kprintf(KERN_CRIT "coprocessor not available");
break;
case 8:
kprintf(KERN_CRIT "double fault");
break;
case 9:
kprintf(KERN_CRIT "coprocessor segement overrun");
break;
case 10:
kprintf(KERN_CRIT "invalid task state segment");
break;
case 11:
kprintf(KERN_CRIT "segment not present");
break;
case 12:
kprintf(KERN_CRIT "stack fault");
break;
case 13:
kprintf(KERN_CRIT "general protection fault");
break;
case 14:
kprintf(KERN_CRIT "page fault");
break;
case 15:
kprintf(KERN_CRIT "reserved");
break;
case 16:
kprintf(KERN_CRIT "math fault");
break;
case 17:
kprintf(KERN_CRIT "alignment check");
break;
case 18:
kprintf(KERN_CRIT "machine check");
break;
case 19:
kprintf(KERN_CRIT "SIMD floating point exception");
break;
default:
break;
}
kprintf(KERN_CRIT "\n");
}

82
src/interrupt/isr.s Normal file
View File

@ -0,0 +1,82 @@
.intel_syntax noprefix
.extern exception_handler
.macro isr_err_stub nb
isr_stub_\nb:
call exception_handler
iret
.endm
.macro isr_no_err_stub nb
isr_stub_\nb:
call exception_handler
iret
.endm
isr_no_err_stub 0
isr_no_err_stub 1
isr_no_err_stub 2
isr_no_err_stub 3
isr_no_err_stub 4
isr_no_err_stub 5
isr_no_err_stub 6
isr_no_err_stub 7
isr_err_stub 8
isr_no_err_stub 9
isr_err_stub 10
isr_err_stub 11
isr_err_stub 12
isr_err_stub 13
isr_err_stub 14
isr_no_err_stub 15
isr_no_err_stub 16
isr_err_stub 17
isr_no_err_stub 18
isr_no_err_stub 19
isr_no_err_stub 20
isr_no_err_stub 21
isr_no_err_stub 22
isr_no_err_stub 23
isr_no_err_stub 24
isr_no_err_stub 25
isr_no_err_stub 26
isr_no_err_stub 27
isr_no_err_stub 28
isr_no_err_stub 29
isr_err_stub 30
isr_no_err_stub 31
.global isr_stub_table
isr_stub_table:
.long isr_stub_0
.long isr_stub_1
.long isr_stub_2
.long isr_stub_3
.long isr_stub_4
.long isr_stub_5
.long isr_stub_6
.long isr_stub_7
.long isr_stub_8
.long isr_stub_9
.long isr_stub_10
.long isr_stub_11
.long isr_stub_12
.long isr_stub_13
.long isr_stub_14
.long isr_stub_15
.long isr_stub_16
.long isr_stub_17
.long isr_stub_18
.long isr_stub_19
.long isr_stub_20
.long isr_stub_21
.long isr_stub_22
.long isr_stub_23
.long isr_stub_24
.long isr_stub_25
.long isr_stub_26
.long isr_stub_27
.long isr_stub_28
.long isr_stub_29
.long isr_stub_30
.long isr_stub_31

2
src/power/halt.c
View File

@ -1,4 +1,4 @@
void halt(void)
{
asm volatile("hlt");
__asm__ volatile("hlt");
}

4
src/power/reboot.c
View File

@ -19,7 +19,7 @@ void reboot(void)
{
uint8_t tmp;
asm volatile("cli"); /* disable all interrupts */
__asm__ volatile("cli"); /* disable all interrupts */
do {
tmp = inb(KBD_INTERFACE); /* empty user data */
if (check_flag(tmp, KBD_BIT_KDATA))
@ -27,6 +27,6 @@ void reboot(void)
} while (check_flag(tmp, KBD_BIT_UDATA));
outb(KBD_INTERFACE, KBD_RESET); /* pulse CPU reset line */
loop:
asm volatile("hlt");
__asm__ volatile("hlt");
goto loop;
}