70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
#include <kernel/tty.h>
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#include <kernel/idt.h>
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#include <kernel/elf.h>
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#include <kernel/pic.h>
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#include <kernel/heap.h>
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#include <kernel/task.h>
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#include <kernel/paging.h>
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#include <debugging.h>
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/* Check if the compiler thinks you are targeting the wrong operating system. */
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#if defined(__linux__)
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#error "You are not using a cross-compiler, you will most certainly run into trouble"
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#endif
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uint8_t program[] = {
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0xcd, 0x80, // int $0x80
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0xff, 0xe1, // jmp *%ecx
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};
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uint8_t data[] = "Hello From Userspace\n";
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uint8_t kernel_data[] = "Hello From Kernelspace\n";
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// uint8_t data[] = {};
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void kernel_main(void)
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{
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/* Initialize terminal interface */
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terminal_initialize();
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terminal_writestring("Hello from Kernelspace\n");
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idt_init();
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init_pic();
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heap_init();
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setup_tasks();
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setup_paging();
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terminal_writestring("Woaw\n");
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struct Heap_Block* block;
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void* code_page = alloc_page(1, &block);
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void* data_page = alloc_page(1, &block);
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set_page_table_entry(0, code_page);
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set_page_table_entry(0x00400000, data_page);
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*(int*)0 = 1;
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while (true) { }
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/* asm("cli");
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run_program(program, sizeof(program), data, sizeof(data));
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asm("sti");
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asm("int $0x20");
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int i = 0;
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while (true) {
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i += 1;
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if (i == 1 << 16) {
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asm("mov %0, %%eax" :: "r" (kernel_data) );
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asm("mov $0, %ecx");
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asm("int $0x80");
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i = 0;
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}
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} */
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}
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