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[CRT]

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Implement __SEH_epilog

svn path=/branches/cmake-bringup/; revision=50483
This commit is contained in:
Timo Kreuzer 2011-01-25 09:33:37 +00:00
parent 776c09f1fd
commit 87ab59ef61
1 changed files with 35 additions and 6 deletions
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41
lib/sdk/crt/except/i386/seh_prolog.s
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@ -103,16 +103,16 @@ __SEH_prolog:
/* Safe SEH table, overwriting OLDFRAME.ReturnAddress */
mov [ebp - SEH_FRAME_OriginalEbp + SEH_FRAME_SEHTable], eax
/* Save registers */
mov [esp + SAFE_AREA_Edi], edi
mov [esp + SAFE_AREA_Esi], esi
mov [esp + SAFE_AREA_Ebx], ebx
/* Safe the disable value, overwriting OLDFRAME.SEHTable */
mov dword ptr [ebp - SEH_FRAME_OriginalEbp + SEH_FRAME_Disable], -1
/* Load the address of the new registration record */
lea eax, [ebp - SEH_FRAME_OriginalEbp + SEH_FRAME_PreviousRecord]
/* Safe the disable value, overwriting OLDFRAME.SEHTable */
mov dword ptr [ebp - SEH_FRAME_OriginalEbp + SEH_FRAME_Disable], -1
/* Save registers */
mov [esp + SAFE_AREA_Edi], edi
mov [esp + SAFE_AREA_Esi], esi
mov [esp + SAFE_AREA_Ebx], ebx
/* Enqueue the new record */
mov fs:[0], eax
@ -120,4 +120,33 @@ __SEH_prolog:
/* Return to the caller */
ret
PUBLIC __SEH_epilog
__SEH_epilog:
/* Restore the previous exception registration record */
mov ecx, [ebp - SEH_FRAME_OriginalEbp + SEH_FRAME_PreviousRecord]
mov fs:[0], ecx
/* Restore saved registers */
mov edi, [esp + 4 + SAFE_AREA_Edi]
mov esi, [esp + 4 + SAFE_AREA_Esi]
mov ebx, [esp + 4 + SAFE_AREA_Ebx]
/* Get the return address */
mov ecx, [esp]
/* Clean up stack */
mov esp, ebp
/* Get previous ebp */
mov ebp, [esp]
/* Save return address */
mov [esp], ecx
/* Return to the caller */
ret
END