Mercurial > lcfOS

comparison cos/kernel/kernel.c @ 35:bcb3b68c8147

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added bss end address and load end address to multiboot header
author windel
date Mon, 16 Jan 2012 17:38:00 +0100
parents 8012221dd740
children 91f91ff07ea8
comparison
equal deleted inserted replaced
34:8012221dd740 35:bcb3b68c8147
12 printf("Got b at %x\n", b); 12 printf("Got b at %x\n", b);
13 b[0] = 'B'; 13 b[0] = 'B';
14 kfree(a); 14 kfree(a);
15 } 15 }
16 16
17 uint64_t testvar = 1234; // Ends up in data section
18 uint64_t testvar2 = 0; // Ends up in bss section
19
17 multiboot_info_t *multiboot_info = 0; // Set by startup code. 20 multiboot_info_t *multiboot_info = 0; // Set by startup code.
18 21
19 /* This routine initializes the kernel. 22 /* This routine initializes the kernel.
20 * We are left here in 64-bit long mode with the first 6 MB identity mapped. 23 * We are left here in 64-bit long mode with the first 6 MB identity mapped.
21 * */ 24 * */
24 // No kmalloc required here yet: 27 // No kmalloc required here yet:
25 init_screen(); 28 init_screen();
26 setupIDT(); 29 setupIDT();
27 keyboard_init(); 30 keyboard_init();
28 timer_init(); 31 timer_init();
32
33 testvar++;
34 testvar2++;
35 printf("Test variable = %d, testvar2 = %d\n", testvar, testvar2);
29 36
30 /* Retrieve memory information from multiboot header */ 37 /* Retrieve memory information from multiboot header */
31 uint64_t available_memory = 0; 38 uint64_t available_memory = 0;
32 if ((multiboot_info->flags & (1<<6)) == (1<<6)) 39 if ((multiboot_info->flags & (1<<6)) == (1<<6))
33 { 40 {