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comparison cos/kernel/handlers.c @ 40:24ce177e01e8

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Added more malloc stuff. Added mem usage
author windel
date Tue, 24 Jan 2012 17:54:16 +0100
parents 91f91ff07ea8
children
comparison
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37:5c20bd53cccd 40:24ce177e01e8
1 #include "kernel.h" 1 #include "kernel.h"
2 2
3 // Assembler wrapper prototypes: 3 // Assembler wrapper prototypes:
4 void INT255(void); 4 extern void INT255(void);
5 void INT0(void); 5 extern void INT0(void);
6 void INT1(void); 6 extern void INT1(void);
7 void INT2(void); 7 extern void INT2(void);
8 void INT3(void); 8 extern void INT3(void);
9 void INT4(void); 9 extern void INT4(void);
10 void INT5(void); 10 extern void INT5(void);
11 void INT6(void); 11 extern void INT6(void);
12 void INT7(void); 12 extern void INT7(void);
13 void INT8(void); 13 extern void INT8(void);
14 void INT9(void); 14 extern void INT9(void);
15 void INT10(void); 15 extern void INT10(void);
16 void INT11(void); 16 extern void INT11(void);
17 void INT12(void); 17 extern void INT12(void);
18 void INT13(void); 18 extern void INT13(void);
19 void INT14(void); 19 extern void INT14(void);
20 void INT16(void); 20 extern void INT16(void);
21 void INT17(void); 21 extern void INT17(void);
22 void INT18(void); 22 extern void INT18(void);
23 void INT19(void); 23 extern void INT19(void);
24 // Remapped irq assembler wrappers: 24 // Remapped irq assembler wrappers:
25 void INT32(void); 25 extern void INT32(void);
26 void INT33(void); 26 extern void INT33(void);
27 void INT34(void); 27 extern void INT34(void);
28 void INT35(void); 28 extern void INT35(void);
29 void INT36(void); 29 extern void INT36(void);
30 void INT37(void); 30 extern void INT37(void);
31 void INT38(void); 31 extern void INT38(void);
32 void INT39(void); 32 extern void INT39(void);
33 void INT40(void); 33 extern void INT40(void);
34 void INT41(void); 34 extern void INT41(void);
35 void INT42(void); 35 extern void INT42(void);
36 void INT43(void); 36 extern void INT43(void);
37 void INT44(void); 37 extern void INT44(void);
38 void INT45(void); 38 extern void INT45(void);
39 void INT46(void); 39 extern void INT46(void);
40 void INT47(void); 40 extern void INT47(void);
41 41
42 // THE interrupt descriptor table: 42 // THE interrupt descriptor table:
43 IDT_entry *idt = (IDT_entry*)0x5000; 43 IDT_entry *idt = (IDT_entry*)0x5000;
44 volatile idtPointer idtP; 44 volatile idtPointer idtP;
45 45
182 display_registers(regs); 182 display_registers(regs);
183 printf("Faulting address: %x\n", faulting_address); 183 printf("Faulting address: %x\n", faulting_address);
184 panic("No resolution to page fault!"); 184 panic("No resolution to page fault!");
185 185
186 } 186 }
187
187 // Global isr handler: 188 // Global isr handler:
188
189 // Hopefully, this function get called with the correct registers. 189 // Hopefully, this function get called with the correct registers.
190 void isr_handler(uint64_t* registers) 190 void isr_handler(uint64_t* registers)
191 { 191 {
192 uint64_t intnum = registers[7]; 192 uint64_t intnum = registers[7];
193 193
221 // TODO: EOI to slave? 221 // TODO: EOI to slave?
222 // TODO: replace this with APIC code? 222 // TODO: replace this with APIC code?
223 outb(0x20, 0x20); // EOI to master 223 outb(0x20, 0x20); // EOI to master
224 } 224 }
225 225
226 // Interrupt service routines:
227
228 void INT14handler()
229 {
230 uint64_t faulting_address;
231
232 printf("Segfault!\n");
233
234 // Retrieve failed page from CR2:
235 asm volatile("mov %%cr2, %0" : "=r" (faulting_address));
236
237 printf("INT14 called! Page fault for address 0x%X!\n", faulting_address);
238
239 panic("Unhandled exception!");
240 }
241
242 void INT15handler()
243 {
244 printf("INT15 called!\n");
245 panic("Unhandled exception!");
246 }
247
248 void INTDEF_handler()
249 {
250 panic("Default int handler called\n");
251 }
252