GNU GCC正在修改我導入的函數名稱,儘管我在聲明中使用了extern「C」。如何阻止GNU GCC從mangling dll導入函數名稱
我剛剛開始使用Code :: Blocks和GNU GCC將現有項目從Borland C++ Builder 6.0 Pro遷移出來,並開發了一些未來的項目。長期來看,我會1)製作我想要交付的DLL,以便終止使用各種平臺的開發人員(即,.dlll不會嚴格保留在內部),並且2) Code ::使用這些.dlls的塊。
當我嘗試遷移在Borland C++ Builder下工作的第一個項目時,即使我將它們聲明爲'extern「C」,它也會損壞導入的函數名稱。
#include <windows.h>
#include <stdio.h>
#include <cstdlib>
#include "dsound.h"
//#include "CGG_Cpp_DInterface.h"
//The following are relevent items taken from CGG_Cpp_DInterface.h
struct CrimsonReply1{
unsigned int Echo;
unsigned int Result;
unsigned int ReplyType;
unsigned int Reserved1;
unsigned int Reserved2;
char* OutputString;
double Reply[32];
};
extern "C" __declspec(dllimport) int CrimsonCommandProc(/*I'm not going to list all the arguments here*/);
extern "C" __declspec(dllimport) int TranslateCrimsonReply1(int, CrimsonReply1*, int);
#define CGG_SETUP 0x20000001
#define CGG_SHUTDOWN 0x20000005
#define CGG_WINDOWED 0x0000002F
#define CGG_RECTANGLE 0x00000024
#define CGG_STRETCHTOCLIENT 0x00000028
#define CGG_DUMPALLREPLIES 0
//End of items taken from CGG_Cpp_DInterface.h
extern "C" LRESULT CALLBACK WndProc(HWND hWnd, UINT messg, WPARAM wParam, LPARAM lParam);
char szProgName[] = "Age Games: Animal Reader";
char message[] = "";
extern "C"{
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPreInst, LPSTR lpszCmdLine, int nCmdShow)
{ //Win32 entry-point routine
MSG WinEvent;//long pointer to an event message sent by Windows to the application
WNDCLASSEX WinClass;//A Windows Class Struct
RECT WindowRect;//A structure to describe the position and size of the window.
HWND WinHand;
/*Other Variables-------------------------------------------------------------*/
CrimsonReply1 CrimsonReply;
/*------------------------------------------------------------------------------
Set up a window, register it, and create it.
------------------------------------------------------------------------------*/
/*set up window class and register it*/
/*All the standard window initialization is in here. It's not relevent to the problem.*/
/*------------------------------------------------------------------------------
begin the message loop
------------------------------------------------------------------------------*/
LPDIRECTSOUND* DirectSoundObject;
HRESULT Result = DirectSoundCreate(NULL, DirectSoundObject, NULL);
if (Result == DS_OK && *DirectSoundObject) Result = (*DirectSoundObject)->SetCooperativeLevel(WinHand, DSSCL_NORMAL);
if (Result != DS_OK) return(0);
int ReplyPointer = CrimsonCommandProc(CGG_SETUP,NULL,(double)(int)WinHand,NULL,CGG_WINDOWED,NULL,
CGG_RECTANGLE,NULL,800,NULL,600,NULL,
CGG_STRETCHTOCLIENT);
if (ReplyPointer) ReplyPointer = TranslateCrimsonReply1(ReplyPointer, &CrimsonReply, CGG_DUMPALLREPLIES);
while(GetMessage(&WinEvent, NULL, 0, 0))
{
DispatchMessage(&WinEvent);
}
/*------------------------------------------------------------------------------
Shutdown.
------------------------------------------------------------------------------*/
ReplyPointer = CrimsonCommandProc(CGG_SHUTDOWN);
if (ReplyPointer) ReplyPointer = TranslateCrimsonReply1(ReplyPointer, &CrimsonReply, CGG_DUMPALLREPLIES);
return(WinEvent.wParam);
} //end of WinMain()
}
此代碼產生以下錯誤::
C:\Development\AnimalReader\Animal Reader.cpp|91|undefined reference to `[email protected]'|
C:\Development\AnimalReader\Animal Reader.cpp|96|undefined reference to `_imp__CrimsonCommandProc'|
C:\Development\AnimalReader\Animal Reader.cpp|97|undefined reference to `_imp__TranslateCrimsonReply1'|
C:\Development\AnimalReader\Animal Reader.cpp|107|undefined reference to `_imp__CrimsonCommandProc'|
C:\Development\AnimalReader\Animal Reader.cpp|108|undefined reference to `_imp__TranslateCrimsonReply1'|
因此,它的重整的DirectSoundCreate函數名
例如,編譯器開始連接後的以下的(降低的)碼產生的錯誤與@ 12,即使我使用微軟的dsound.h文件(它把它放在一個'extern「C''塊),它是搗毀CrimsonCommandProc與_ imp __即使我將所有內容都放在「extern」C「範圍內」。我如何獲得GNU GCC編譯器來停止修改名稱? (無論是進口dll函數,並最終創建dll時)
或者,我沒有結婚到GNU GCC。如果還有另一個編譯器是A)Free,B)跨平臺,並且C)與DirectX .lib文件一起使用(最好是在新版本出現時支持的東西),我可以使用它。
dsound.h幾乎包住該文件的所有內部 的#ifdef __cplusplus的extern 「C」 { #ENDIF // __cplusplus 的#ifdef __cplusplus }; #endif // __cplusplus 此外,我還將dsound.lib添加到項目中。我應該用它做點什麼嗎? (BCB足夠了,我是新來的code :: blocks) – user1167758
我去了Build Options ...-> Linker Settings-> Add - >(Browse)並添加了dsound.lib和CGGWin.lib。現在我得到「ld.exe ||找不到-ldsound.lib |」和CGGWin一樣。 – user1167758
啊。當你在GNU GCC中使用__stdcall時,即使你指定了'extern'C'',它也會添加@N。這在BCB中不會發生。此外,dsound.h文件使用#define WINAPI __stdcall隱藏了__stdcall。現在我只需要弄清楚爲什麼Code :: Blocks在瀏覽並添加library.lib時試圖找到-llibrary.lib。 – user1167758