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42 lines
1.2 KiB
Diff
42 lines
1.2 KiB
Diff
From 6e2509a34fb6f8f06438ee9908eb61320b73697f Mon Sep 17 00:00:00 2001
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From: Sebastian Lackner <sebastian@fds-team.de>
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Date: Sun, 28 Sep 2014 23:39:51 +0200
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Subject: [PATCH] ntdll: OutputDebugString should throw the exception a second
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time, if a debugger is attached.
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---
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dlls/kernelbase/debug.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/dlls/kernelbase/debug.c b/dlls/kernelbase/debug.c
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index e1976777b7f..7294f99da7e 100644
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--- a/dlls/kernelbase/debug.c
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+++ b/dlls/kernelbase/debug.c
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@@ -202,6 +202,23 @@ void WINAPI DECLSPEC_HOTPATCH OutputDebugStringA( LPCSTR str )
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__ENDTRY
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if (caught_by_dbg) return;
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+ /* for some unknown reason Windows sends the exception a second time, if a
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+ * debugger is attached, and the event wasn't handled in the first attempt */
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+ if (NtCurrentTeb()->Peb->BeingDebugged)
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+ {
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+ __TRY
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+ {
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+ ULONG_PTR args[2];
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+ args[0] = strlen(str) + 1;
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+ args[1] = (ULONG_PTR)str;
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+ RaiseException( DBG_PRINTEXCEPTION_C, 0, 2, args );
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+ }
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+ __EXCEPT(debug_exception_handler)
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+ {
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+ }
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+ __ENDTRY
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+ }
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+
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/* send string to a system-wide monitor */
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if (!mutex_inited)
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{
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--
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2.40.1
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