diff options
Diffstat (limited to 'win/tkWin32Dll.c')
| -rw-r--r-- | win/tkWin32Dll.c | 56 |
1 files changed, 48 insertions, 8 deletions
diff --git a/win/tkWin32Dll.c b/win/tkWin32Dll.c index cec133a..3b6d7f5 100644 --- a/win/tkWin32Dll.c +++ b/win/tkWin32Dll.c @@ -8,7 +8,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkWin32Dll.c,v 1.9 2004/03/05 07:32:54 mdejong Exp $ + * RCS: @(#) $Id: tkWin32Dll.c,v 1.10 2004/10/28 19:51:37 mdejong Exp $ */ #include "tkWinInt.h" @@ -23,12 +23,37 @@ static void *INITIAL_ESP, *RESTORED_HANDLER; #endif /* HAVE_NO_SEH && TCL_MEM_DEBUG */ +#ifdef HAVE_NO_SEH +static +__attribute__ ((cdecl)) +EXCEPTION_DISPOSITION +_except_dllmain_detach_handler( + struct _EXCEPTION_RECORD *ExceptionRecord, + void *EstablisherFrame, + struct _CONTEXT *ContextRecord, + void *DispatcherContext); +#endif /* HAVE_NO_SEH */ + +#ifdef HAVE_NO_SEH + +/* Need to add noinline flag to DllMain declaration so that gcc -O3 + * does not inline asm code into DllEntryPoint and cause a + * compile time error because of redefined local labels. + */ + +BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, + LPVOID reserved) + __attribute__ ((noinline)); + +#else + /* * The following declaration is for the VC++ DLL entry point. */ BOOL APIENTRY DllMain _ANSI_ARGS_((HINSTANCE hInst, DWORD reason, LPVOID reserved)); +#endif /* HAVE_NO_SEH */ /* *---------------------------------------------------------------------- @@ -112,12 +137,14 @@ DllMain(hInstance, reason, reserved) "=m"(INITIAL_EBP), "=r"(INITIAL_HANDLER) ); # endif /* TCL_MEM_DEBUG */ - + __asm__ __volatile__ ( - "pushl %ebp" "\n\t" - "pushl $__except_dllmain_detach_handler" "\n\t" - "pushl %fs:0" "\n\t" - "movl %esp, %fs:0"); + "pushl %%ebp" "\n\t" + "pushl %0" "\n\t" + "pushl %%fs:0" "\n\t" + "movl %%esp, %%fs:0" + : + : "r" (_except_dllmain_detach_handler) ); #else __try { #endif /* HAVE_NO_SEH */ @@ -170,6 +197,21 @@ DllMain(hInstance, reason, reserved) } return TRUE; } +/* + *---------------------------------------------------------------------- + * + * _except_dllmain_detach_handler -- + * + * SEH exception handler for DllMain. + * + * Results: + * See DllMain. + * + * Side effects: + * See DllMain. + * + *---------------------------------------------------------------------- + */ #ifdef HAVE_NO_SEH static __attribute__ ((cdecl)) @@ -182,8 +224,6 @@ _except_dllmain_detach_handler( { __asm__ __volatile__ ( "jmp dllmain_detach_reentry"); - /* Nuke compiler warning about unused static function */ - _except_dllmain_detach_handler(NULL, NULL, NULL, NULL); return 0; /* Function does not return */ } #endif /* HAVE_NO_SEH */ |