OSDev.org

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   1.  wojtek@wojtek-desktop:~/Pulpit/doc3_files$ make
   2. nasm start.asm -o start.o -f coff
   3. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o main.o main.c
   4. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o intr.o intr.c
   5. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o cons.o cons.c
   6. nasm irqroute.asm -o irqroute.o -f coff
   7. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o kbd.o kbd.c
   8. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o sched.o sched.c
   9. nasm exc.asm -o exc.o -f coff
  10. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o traps.o traps.c
  11. ld -Tkernel.ld -o kernel.bin start.o main.o intr.o cons.o irqroute.o kbd.o sched.o exc.o traps.o
  12. start.o: file not recognized: File format not recognized
  13. make: *** [kernel.bin] Błąd 1
  14. wojtek@wojtek-desktop:~/Pulpit/doc3_files$

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   1.  wojtek@wojtek-desktop:~/Pulpit/doc3_files$ make
   2. nasm start.asm -o start.o -f elf
   3. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o main.o main.c
   4. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o intr.o intr.c
   5. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o cons.o cons.c
   6. nasm irqroute.asm -o irqroute.o -f elf
   7. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o kbd.o kbd.c
   8. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o sched.o sched.c
   9. nasm exc.asm -o exc.o -f elf
  10. cc -O2 -fomit-frame-pointer -I. -nostdinc -fno-builtin  -c -o traps.o traps.c
  11. ld -Tkernel.ld -o kernel.bin start.o main.o intr.o cons.o irqroute.o kbd.o sched.o exc.o traps.o
  12. start.o: In function `_start.1':
  13. start.asm:(.text+0x5f): undefined reference to `_start_kernel'
  14. start.o: In function `_irq1':
  15. start.asm:(.text+0x7a): undefined reference to `_do_irq1'
  16. start.o: In function `_irq0':
  17. start.asm:(.text+0x9a): undefined reference to `_do_irq0'
  18. main.o: In function `start_kernel':
  19. main.c:(.text+0x6a): undefined reference to `irq0'
  20. intr.o: In function `set_intr_gate':
  21. intr.c:(.text+0x1a): undefined reference to `idt'
  22. intr.c:(.text+0x21): undefined reference to `idt'
  23. intr.o: In function `set_trap_gate':
  24. intr.c:(.text+0x4a): undefined reference to `idt'
  25. intr.c:(.text+0x51): undefined reference to `idt'
  26. intr.o: In function `set_system_gate':
  27. intr.c:(.text+0x7a): undefined reference to `idt'
  28. intr.o:intr.c:(.text+0x81): more undefined references to `idt' follow
  29. kbd.o: In function `kbd_init':
  30. kbd.c:(.text+0x47): undefined reference to `irq1'
  31. exc.o: In function `exception_table':
  32. exc.asm:(.text+0x0): undefined reference to `_do_exc0'
  33. exc.asm:(.text+0x4): undefined reference to `_do_exc1'
  34. exc.asm:(.text+0x8): undefined reference to `_do_exc2'
  35. exc.asm:(.text+0xc): undefined reference to `_do_exc3'
  36. exc.asm:(.text+0x10): undefined reference to `_do_exc4'
  37. exc.asm:(.text+0x14): undefined reference to `_do_exc5'
  38. exc.asm:(.text+0x18): undefined reference to `_do_exc6'
  39. exc.asm:(.text+0x1c): undefined reference to `_do_exc7'
  40. exc.asm:(.text+0x20): undefined reference to `_do_exc8'
  41. exc.asm:(.text+0x24): undefined reference to `_do_exc9'
  42. exc.asm:(.text+0x28): undefined reference to `_do_exc10'
  43. exc.asm:(.text+0x2c): undefined reference to `_do_exc11'
  44. exc.asm:(.text+0x30): undefined reference to `_do_exc12'
  45. exc.asm:(.text+0x34): undefined reference to `_do_exc13'
  46. exc.asm:(.text+0x38): undefined reference to `_do_exc14'
  47. traps.o: In function `trap_init':
  48. traps.c:(.text+0x7): undefined reference to `exc0'
  49. traps.c:(.text+0x1b): undefined reference to `exc1'
  50. traps.c:(.text+0x2f): undefined reference to `exc2'
  51. traps.c:(.text+0x43): undefined reference to `exc3'
  52. traps.c:(.text+0x57): undefined reference to `exc4'
  53. traps.c:(.text+0x6b): undefined reference to `exc5'
  54. traps.c:(.text+0x7f): undefined reference to `exc6'
  55. traps.c:(.text+0x93): undefined reference to `exc7'
  56. traps.c:(.text+0xa7): undefined reference to `exc8'
  57. traps.c:(.text+0xbb): undefined reference to `exc9'
  58. traps.c:(.text+0xcf): undefined reference to `exc10'
  59. traps.c:(.text+0xe3): undefined reference to `exc11'
  60. traps.c:(.text+0xf7): undefined reference to `exc12'
  61. traps.c:(.text+0x10b): undefined reference to `exc13'
  62. traps.c:(.text+0x11f): undefined reference to `exc14'
  63. make: *** [kernel.bin] Błąd 1
  64. wojtek@wojtek-desktop:~/Pulpit/doc3_files$

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mboot:
 dd 0x1BADB002	; Sygnatura
 dd 0x10001 ; Flagi dla bootloadera
 dd -(0x1BADB002+0x10001) ; suma kontrolna nag��wka
 dd mboot ; Pozycja nag��wka w pliku
 dd code
 dd bss
 dd end
 dd _start

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nm kernel.bin

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ENTRY(start)
phys = 0x00100000;
SECTIONS
{
  .text phys : AT(phys) {
    code = .;
    *(.text)
    *(.rodata)
    . = ALIGN(4096);
  }
  .data : AT(phys + (data - code))
  {
    data = .;
    *(.data)
    . = ALIGN(4096);
  }
  .bss : AT(phys + (bss - code))
  {
    bss = .;
    *(.bss)
    . = ALIGN(4096);
  }
  end = .;
}