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1/*
2 * PROJECT: ReactOS vcruntime library
3 * LICENSE: MIT (https://spdx.org/licenses/MIT)
4 * PURPOSE: Implementation of _seh_longjmp_unwind sor x86
5 * COPYRIGHT: Copyright 2025 Timo Kreuzer <timo.kreuzer@reactos.org>
6 */
7
8#include <asm.inc>
9#include <ks386.inc>
10
11EXTERN __local_unwind2:PROC
12
13.code
14
15//
16// void __stdcall _seh_longjmp_unwind(_JUMP_BUFFER* _Buf);
17//
18PUBLIC __seh_longjmp_unwind@4
19__seh_longjmp_unwind@4:
20
21 // Save ebp
22 push ebp
23
24 // Load the jump buffer address into eax
25 mov eax, [esp + 8]
26
27 // Call _local_unwind2 to run the termination handlers
28 push dword ptr [eax + JbTryLevel] // _Buf->TryLevel
29 push dword ptr [eax + JbRegistration] // _Buf->Registration
30 mov ebp, [eax + JbEbp] // _Buf->Ebp
31 call __local_unwind2
32
33 // Clean up the stack and restore ebp
34 add esp, 8
35 pop ebp
36 ret 4
37
38END