l4/pkg/bootstrap/server/src/ARCH-amd64/boot32/boot_idt.S

   1 /*
   2  * (c) 2009 Torsten Frenzel <frenzel@os.inf.tu-dresden.de>
   3  *     economic rights: Technische Universität Dresden (Germany)
   4  *
   5  * This file is part of TUD:OS and distributed under the terms of the
   6  * GNU General Public License 2.
   7  * Please see the COPYING-GPL-2 file for details.
   8  */
   9
  10 #define GATE_INITTAB_BEGIN(name)        \
  11         .text   1                       ;\
  12         .globl  name                    ;\
  13 name:                                   ;\
  14         .text
  15
  16 #define GATE_ENTRY(n,entry,type)        \
  17         .text   1                       ;\
  18         .long   entry                   ;\
  19         .word   n                       ;\
  20         .word   type                    ;\
  21         .text
  22
  23 #define GATE_INITTAB_END                \
  24         .text   1                       ;\
  25         .long   0                       ;\
  26         .text
  27
  28 #define EXCEPTION(n,name)               \
  29         GATE_ENTRY(n,name,0x0e)         ;\
  30 name:                                   ;\
  31         pushl   $(0)                    ;\
  32         pushl   $(n)                    ;\
  33         jmp     alltraps
  34
  35 #define EXCEP_USR(n,name)               \
  36         GATE_ENTRY(n,name,0x6e)         ;\
  37 name:                                   ;\
  38         pushl   $(0)                    ;\
  39         pushl   $(n)                    ;\
  40         jmp     alltraps
  41
  42 #define EXCEP_ERR(n,name)               \
  43         GATE_ENTRY(n,name,0x0e)         ;\
  44 name:                                   ;\
  45         pushl   $(n)                    ;\
  46         jmp     alltraps
  47
  48
  49 GATE_INITTAB_BEGIN(boot_idt_inittab)
  50
  51 EXCEPTION(0x00,t_zero_div)
  52 EXCEPTION(0x01,t_debug)
  53 EXCEPTION(0x02,t_nmi)
  54 EXCEP_USR(0x03,t_int3)
  55 EXCEP_USR(0x04,t_into)
  56 EXCEP_USR(0x05,t_bounds)
  57 EXCEPTION(0x06,t_invop)
  58 EXCEPTION(0x07,t_nofpu)
  59 GATE_ENTRY(0x08,0x20,0x05)
  60 EXCEPTION(0x09,a_fpu_over)
  61 EXCEP_ERR(0x0a,a_inv_tss)
  62 EXCEP_ERR(0x0b,t_segnp)
  63 EXCEP_ERR(0x0c,t_stack_fault)
  64 EXCEP_ERR(0x0d,t_gen_prot)
  65 EXCEP_ERR(0x0e,t_page_fault)
  66 EXCEPTION(0x0f,t_trap_0f)
  67 EXCEPTION(0x10,t_fpu_err)
  68 EXCEPTION(0x11,t_trap_11)
  69 EXCEPTION(0x12,t_trap_12)
  70 EXCEPTION(0x13,t_trap_13)
  71 EXCEPTION(0x14,t_trap_14)
  72 EXCEPTION(0x15,t_trap_15)
  73 EXCEPTION(0x16,t_trap_16)
  74 EXCEPTION(0x17,t_trap_17)
  75 EXCEPTION(0x18,t_trap_18)
  76 EXCEPTION(0x19,t_trap_19)
  77 EXCEPTION(0x1a,t_trap_1a)
  78 EXCEPTION(0x1b,t_trap_1b)
  79 EXCEPTION(0x1c,t_trap_1c)
  80 EXCEPTION(0x1d,t_trap_1d)
  81 EXCEPTION(0x1e,t_trap_1e)
  82 EXCEPTION(0x1f,t_trap_1f)
  83
  84 GATE_INITTAB_END
  85
  86 alltraps:
  87         pusha
  88         pushl   %ds
  89         pushl   %es
  90         pushl   %fs
  91         pushl   %gs
  92
  93         movl    %ss,%eax
  94         movl    %eax,%ds
  95         movl    %eax,%es
  96         movl    %esp,%eax
  97         pushl   %eax
  98         call    trap_dump_panic
  99