reactos/include/reactos/syscalls.inc

   1
   2 #ifdef _M_IX86
   3 #define KUSER_SHARED_SYSCALL HEX(7ffe0300)
   4 #define KGDT_R0_CODE 8
   5 MACRO(STUBCODE_U, SyscallId, StackBytes)
   6     mov eax, SyscallId
   7     mov ecx, KUSER_SHARED_SYSCALL
   8     call dword ptr [ecx]
   9     ret StackBytes
  10 ENDM
  11 MACRO(STUBCODE_K, SyscallId, StackBytes)
  12     mov eax, SyscallId
  13     lea edx, [esp + 4]
  14     pushf
  15     push KGDT_R0_CODE
  16     call _KiSystemService
  17     ret StackBytes
  18 ENDM
  19 #elif defined(_M_AMD64)
  20 MACRO(STUBCODE_U, SyscallId, StackBytes)
  21     mov eax, SyscallId
  22     mov r10, rcx
  23     syscall
  24     ret StackBytes
  25 ENDM
  26 MACRO(STUBCODE_K, SyscallId, StackBytes)
  27     mov eax, SyscallId
  28     call KiSystemService
  29     ret StackBytes
  30 ENDM
  31 #elif defined(_M_ARM)
  32 MACRO(STUBCODE_U, SyscallId, StackBytes)
  33     swi #SyscallId
  34     bx lr
  35 ENDM
  36 MACRO(STUBCODE_K, SyscallId, StackBytes)
  37     mov ip, lr
  38     swi #SyscallId
  39     bx ip
  40 ENDM
  41 #elif defined(_M_PPC)
  42 MACRO(STUBCODE_U, SyscallId, StackBytes)
  43     stwu 1,-16(1)
  44     mflr 0
  45     stw  0,0(1)
  46     li   0, SyscallId
  47     sc
  48     lwz 0,0(1)
  49     mtlr 0
  50     addi 1,1,16
  51     blr
  52 ENDM
  53 #define STUBCODE_K STUBCODE_U
  54 #elif defined(_M_MIPS)
  55 MACRO(STUBCODE_U, SyscallId, StackBytes)
  56     li $8, KUSER_SHARED_SYSCALL
  57     lw $8,0($8)
  58     j $8
  59     nop
  60 ENDM
  61 MACRO(STUBCODE_K, SyscallId, StackBytes)
  62     j KiSystemService
  63     nop
  64 ENDM
  65 #else
  66 #error unsupported architecture
  67 #endif
  68
  69 #ifdef _M_IX86
  70 MACRO(MAKE_LABEL, Name, Stackbytes)
  71     PUBLIC _&Name&@&Stackbytes
  72     _&Name&@&Stackbytes:
  73 ENDM
  74 #else
  75 MACRO(MAKE_LABEL, Name, Stackbytes)
  76     PUBLIC &Name
  77     &Name:
  78 ENDM
  79 #endif
  80
  81 MACRO(STUB_U, Name, ArgCount)
  82     Stackbytes = 4 * &ArgCount
  83     MAKE_LABEL &Name, %Stackbytes
  84     STUBCODE_U SyscallId, %Stackbytes
  85     SyscallId = SyscallId + 1
  86 ENDM
  87
  88 MACRO(STUB_K, Name, ArgCount)
  89     Stackbytes = 4 * &ArgCount
  90     MAKE_LABEL &Name, %Stackbytes
  91     STUBCODE_K SyscallId, %Stackbytes
  92     SyscallId = SyscallId + 1
  93 ENDM