Ivan Kalvachev : kernel32: Add DECL_HOTPATCH to OutputDebugString functions.

Alexandre Julliard julliard at winehq.org
Mon Apr 9 15:41:09 CDT 2018


Module: wine
Branch: master
Commit: 7f359ea93e89de099ac6be15ca07a6ee16efdce5
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=7f359ea93e89de099ac6be15ca07a6ee16efdce5

Author: Ivan Kalvachev <ikalvachev at gmail.com>
Date:   Sat Apr  7 14:02:16 2018 +0300

kernel32: Add DECL_HOTPATCH to OutputDebugString functions.

Some Microsoft debuggers hotpatch this function to get the
debug output directly from the code they are tracing.
Having the wrong function prologue leads to a crash.

Signed-off-by: Ivan Kalvachev <ikalvachev at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/kernel32/debugger.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/debugger.c b/dlls/kernel32/debugger.c
index a277f93..8e5af30 100644
--- a/dlls/kernel32/debugger.c
+++ b/dlls/kernel32/debugger.c
@@ -253,7 +253,7 @@ static LONG WINAPI debug_exception_handler( EXCEPTION_POINTERS *eptr )
  *
  *  Nothing.
  */
-void WINAPI OutputDebugStringA( LPCSTR str )
+void WINAPI DECLSPEC_HOTPATCH OutputDebugStringA( LPCSTR str )
 {
     static HANDLE DBWinMutex = NULL;
     static BOOL mutex_inited = FALSE;
@@ -364,7 +364,7 @@ void WINAPI OutputDebugStringA( LPCSTR str )
  *
  *  Nothing.
  */
-void WINAPI OutputDebugStringW( LPCWSTR str )
+void WINAPI DECLSPEC_HOTPATCH OutputDebugStringW( LPCWSTR str )
 {
     UNICODE_STRING strW;
     STRING strA;




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