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77 lines
1.8 KiB
ArmAsm
77 lines
1.8 KiB
ArmAsm
/*
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* PROJECT: ReactOS api tests
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Test helper for x86 RtlUnwind
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* COPYRIGHT: Copyright 2024 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <asm.inc>
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#include <ks386.inc>
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.code
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EXTERN _g_InContext:DWORD
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EXTERN _g_OutContext:DWORD
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EXTERN _RtlUnwind@16:PROC
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//
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// VOID
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// WINAPI
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// RtlUnwindWrapper(
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// _In_ PVOID TargetFrame,
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// _In_ PVOID TargetIp,
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// _In_ PEXCEPTION_RECORD ExceptionRecord,
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// _In_ PVOID ReturnValue);
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//
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PUBLIC _RtlUnwindWrapper@16
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FUNC _RtlUnwindWrapper@16
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push ebp
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mov ebp, esp
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/* Save non-volatile registers */
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push ebx
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push esi
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push edi
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/* Load registers from the in-context */
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mov eax, _g_InContext[CONTEXT_EAX]
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mov ebx, _g_InContext[CONTEXT_EBX]
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mov ecx, _g_InContext[CONTEXT_ECX]
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mov edx, _g_InContext[CONTEXT_EDX]
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mov esi, _g_InContext[CONTEXT_ESI]
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mov edi, _g_InContext[CONTEXT_EDI]
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/* Call the native function */
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push dword ptr [ebp + 20] // ReturnValue
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push dword ptr [ebp + 16] // ExceptionRecord
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push dword ptr [ebp + 12] // TargetIp
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push dword ptr [ebp + 8] // TargetFrame
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call _RtlUnwind@16
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/* Save registers in the out-context */
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mov _g_OutContext[CONTEXT_EAX], eax
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mov _g_OutContext[CONTEXT_EBX], ebx
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mov _g_OutContext[CONTEXT_ECX], ecx
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mov _g_OutContext[CONTEXT_EDX], edx
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mov _g_OutContext[CONTEXT_ESI], esi
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mov _g_OutContext[CONTEXT_EDI], edi
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mov word ptr _g_OutContext[CONTEXT_SEGCS], cs
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mov word ptr _g_OutContext[CONTEXT_SEGDS], ds
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mov word ptr _g_OutContext[CONTEXT_SEGES], es
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mov word ptr _g_OutContext[CONTEXT_SEGFS], fs
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/* Restore non-volatile registers */
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pop edi
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pop esi
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pop ebx
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mov esp, ebp
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pop ebp
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ret 16
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ENDFUNC
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END
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