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[NTDLL]
- use the edx register to store the function pointer to the syscall trampoline. This is how google Chrome checks if an exported function is a system call or not. See https://chromium.googlesource.com/chromium/src.git/+/master/sandbox/win/src/service_resolver_32.cc and https://bugs.winehq.org/show_bug.cgi?id=21232 for details svn path=/trunk/; revision=66161
This commit is contained in:
Jérôme Gardou
parent
667174effd
commit
f8de863698
1 changed files with 109 additions and 109 deletions
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@ -1,109 +1,109 @@
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#ifdef _M_IX86
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#define KUSER_SHARED_SYSCALL HEX(7ffe0300)
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#define KGDT_R0_CODE 8
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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StackBytes = 4 * ArgCount
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FPO 0, 0, 0, 0, 0, FRAME_FPO
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mov eax, SyscallId
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mov ecx, KUSER_SHARED_SYSCALL
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call dword ptr [ecx]
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ret StackBytes
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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StackBytes = 4 * &ArgCount
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FPO 0, 0, 0, 0, 0, FRAME_FPO
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mov eax, SyscallId
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lea edx, [esp + 4]
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pushfd
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push KGDT_R0_CODE
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call _KiSystemService
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ret StackBytes
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ENDM
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#elif defined(_M_AMD64)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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.ENDPROLOG
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mov eax, SyscallId
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mov r10, rcx
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syscall
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ret
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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.ENDPROLOG
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EXTERN Nt&Name:PROC
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lea rax, Nt&Name[rip]
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mov r10, ArgCount * 8
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jmp KiZwSystemService
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ENDM
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#elif defined(_M_ARM)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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swi #SyscallId
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bx lr
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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mov ip, lr
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swi #SyscallId
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bx ip
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ENDM
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#elif defined(_M_PPC)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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stwu 1,-16(1)
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mflr 0
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stw 0,0(1)
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li 0, SyscallId
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sc
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lwz 0,0(1)
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mtlr 0
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addi 1,1,16
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blr
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ENDM
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#define STUBCODE_K STUBCODE_U
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#elif defined(_M_MIPS)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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li $8, KUSER_SHARED_SYSCALL
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lw $8,0($8)
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j $8
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nop
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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j KiSystemService
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nop
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ENDM
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#else
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#error unsupported architecture
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#endif
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#ifdef _M_IX86
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MACRO(MAKE_LABEL, Name, StackBytes)
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PUBLIC _&Name&@&StackBytes
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_&Name&@&StackBytes:
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ENDM
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MACRO(START_PROC, Name, StackBytes)
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PUBLIC _&Name&@&StackBytes
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.PROC _&Name&@&StackBytes
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ENDM
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#else
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MACRO(MAKE_LABEL, Name, StackBytes)
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PUBLIC &Name
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&Name:
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ENDM
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MACRO(START_PROC, Name, StackBytes)
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PUBLIC &Name
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.PROC &Name
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ENDM
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#endif
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MACRO(STUB_U, Name, ArgCount)
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MAKE_LABEL Zw&Name, %ArgCount * 4
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START_PROC Nt&Name, %ArgCount * 4
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STUBCODE_U Name, SyscallId, %ArgCount
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.ENDP
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SyscallId = SyscallId + 1
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ENDM
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MACRO(STUB_K, Name, ArgCount)
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START_PROC Zw&Name, %ArgCount * 4
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STUBCODE_K Name, SyscallId, %ArgCount
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.ENDP
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SyscallId = SyscallId + 1
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ENDM
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#ifdef _M_IX86
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#define KUSER_SHARED_SYSCALL HEX(7ffe0300)
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#define KGDT_R0_CODE 8
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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StackBytes = 4 * ArgCount
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FPO 0, 0, 0, 0, 0, FRAME_FPO
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mov eax, SyscallId
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mov edx, KUSER_SHARED_SYSCALL
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call dword ptr [edx]
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ret StackBytes
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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StackBytes = 4 * &ArgCount
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FPO 0, 0, 0, 0, 0, FRAME_FPO
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mov eax, SyscallId
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lea edx, [esp + 4]
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pushfd
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push KGDT_R0_CODE
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call _KiSystemService
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ret StackBytes
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ENDM
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#elif defined(_M_AMD64)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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.ENDPROLOG
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mov eax, SyscallId
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mov r10, rcx
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syscall
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ret
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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.ENDPROLOG
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EXTERN Nt&Name:PROC
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lea rax, Nt&Name[rip]
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mov r10, ArgCount * 8
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jmp KiZwSystemService
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ENDM
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#elif defined(_M_ARM)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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swi #SyscallId
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bx lr
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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mov ip, lr
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swi #SyscallId
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bx ip
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ENDM
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#elif defined(_M_PPC)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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stwu 1,-16(1)
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mflr 0
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stw 0,0(1)
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li 0, SyscallId
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sc
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lwz 0,0(1)
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mtlr 0
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addi 1,1,16
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blr
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ENDM
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#define STUBCODE_K STUBCODE_U
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#elif defined(_M_MIPS)
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MACRO(STUBCODE_U, Name, SyscallId, ArgCount)
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li $8, KUSER_SHARED_SYSCALL
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lw $8,0($8)
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j $8
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nop
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ENDM
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MACRO(STUBCODE_K, Name, SyscallId, ArgCount)
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j KiSystemService
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nop
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ENDM
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#else
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#error unsupported architecture
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#endif
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#ifdef _M_IX86
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MACRO(MAKE_LABEL, Name, StackBytes)
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PUBLIC _&Name&@&StackBytes
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_&Name&@&StackBytes:
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ENDM
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MACRO(START_PROC, Name, StackBytes)
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PUBLIC _&Name&@&StackBytes
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.PROC _&Name&@&StackBytes
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ENDM
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#else
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MACRO(MAKE_LABEL, Name, StackBytes)
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PUBLIC &Name
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&Name:
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ENDM
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MACRO(START_PROC, Name, StackBytes)
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PUBLIC &Name
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.PROC &Name
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ENDM
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#endif
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MACRO(STUB_U, Name, ArgCount)
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MAKE_LABEL Zw&Name, %ArgCount * 4
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START_PROC Nt&Name, %ArgCount * 4
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STUBCODE_U Name, SyscallId, %ArgCount
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.ENDP
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SyscallId = SyscallId + 1
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ENDM
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MACRO(STUB_K, Name, ArgCount)
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START_PROC Zw&Name, %ArgCount * 4
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STUBCODE_K Name, SyscallId, %ArgCount
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.ENDP
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SyscallId = SyscallId + 1
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ENDM
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