reactos/sdk/include/asm/syscalls.inc

   1
   2 #ifdef _M_ARM
   3
   4 #include <ksarm.h>
   5
   6     GBLA SyscallId
   7
   8 SyscallId SETA 0
   9
  10         MACRO
  11         STUB_K $Name
  12         LCLS ZwFuncName
  13         LCLS ZwFuncEndName
  14 ZwFuncName    SETS "Zw$Name"
  15 ZwFuncEndName SETS "$ZwFuncName":CC:"_end"
  16         ALIGN 2
  17         EXPORT $ZwFuncName [FUNC]
  18 $ZwFuncName
  19         ROUT
  20     mov r12, #SyscallId
  21     svc #1
  22     bx lr
  23 $ZwFuncEndName
  24     MEND
  25
  26         MACRO
  27         STUB_U $Name
  28         LCLS NtFuncName
  29         LCLS NtFuncEndName
  30         LCLS ZwFuncName
  31         LCLS ZwFuncEndName
  32 NtFuncName    SETS "Nt$Name"
  33 NtFuncEndName SETS "$NtFuncName":CC:"_end"
  34 ZwFuncName    SETS "Zw$Name"
  35 ZwFuncEndName SETS "$ZwFuncName":CC:"_end"
  36         ALIGN 2
  37         EXPORT $NtFuncName [FUNC]
  38 $NtFuncName
  39         EXPORT $ZwFuncName [FUNC]
  40 $ZwFuncName
  41         ROUT
  42     mov r12, #SyscallId
  43     svc #1
  44     bx lr
  45 $NtFuncEndName
  46 $ZwFuncEndName
  47     MEND
  48
  49 #else
  50
  51 #include <asm.inc>
  52
  53 SyscallId = 0
  54
  55 #ifdef _M_IX86
  56 #define KUSER_SHARED_SYSCALL HEX(7ffe0300)
  57 #define KGDT_R0_CODE 8
  58 MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
  59     StackBytes = 4 * ArgCount
  60     FPO 0, 0, 0, 0, 0, FRAME_FPO
  61     mov eax, SyscallId
  62     mov edx, KUSER_SHARED_SYSCALL
  63     call dword ptr [edx]
  64     ret StackBytes
  65 ENDM
  66 MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
  67     StackBytes = 4 * &ArgCount
  68     FPO 0, 0, 0, 0, 0, FRAME_FPO
  69     mov eax, SyscallId
  70     lea edx, [esp + 4]
  71     pushfd
  72     push KGDT_R0_CODE
  73     call _KiSystemService
  74     ret StackBytes
  75 ENDM
  76 #elif defined(_M_AMD64)
  77 MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
  78     .ENDPROLOG
  79     mov eax, SyscallId
  80     mov r10, rcx
  81     syscall
  82     ret
  83 ENDM
  84 MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
  85     .ENDPROLOG
  86     EXTERN Nt&Name:PROC
  87     lea rax, Nt&Name[rip]
  88     mov r10, ArgCount * 8
  89     jmp KiZwSystemService
  90 ENDM
  91 #elif defined(_M_PPC)
  92 MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
  93     stwu 1,-16(1)
  94     mflr 0
  95     stw  0,0(1)
  96     li   0, SyscallId
  97     sc
  98     lwz 0,0(1)
  99     mtlr 0
 100     addi 1,1,16
 101     blr
 102 ENDM
 103 #define STUBCODE_K STUBCODE_U
 104 #elif defined(_M_MIPS)
 105 MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
 106     li $8, KUSER_SHARED_SYSCALL
 107     lw $8,0($8)
 108     j $8
 109     nop
 110 ENDM
 111 MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
 112     j KiSystemService
 113     nop
 114 ENDM
 115 #else
 116 #error unsupported architecture
 117 #endif
 118
 119 #ifdef _M_IX86
 120 MACRO(MAKE_LABEL, Name, StackBytes)
 121     PUBLIC _&Name&@&StackBytes
 122     _&Name&@&StackBytes:
 123 ENDM
 124 MACRO(START_PROC, Name, StackBytes)
 125     PUBLIC _&Name&@&StackBytes
 126     .PROC _&Name&@&StackBytes
 127 ENDM
 128 #else
 129 MACRO(MAKE_LABEL, Name, StackBytes)
 130     PUBLIC &Name
 131     &Name:
 132 ENDM
 133 MACRO(START_PROC, Name, StackBytes)
 134     PUBLIC &Name
 135     .PROC &Name
 136 ENDM
 137 #endif
 138
 139 MACRO(STUB_U, Name, ArgCount)
 140     MAKE_LABEL Zw&Name, %ArgCount * 4
 141     START_PROC Nt&Name, %ArgCount * 4
 142     STUBCODE_U Name, SyscallId, %ArgCount
 143     .ENDP
 144     SyscallId = SyscallId + 1
 145 ENDM
 146
 147 MACRO(STUB_K, Name, ArgCount)
 148     START_PROC Zw&Name, %ArgCount * 4
 149     STUBCODE_K Name, SyscallId, %ArgCount
 150     .ENDP
 151     SyscallId = SyscallId + 1
 152 ENDM
 153
 154 #endif