执行的DLL构建的初始化代码蚊蚋导入时不自动运行。我这样做,包括在MCVE:的DllMain/DllMainCRTStartup不DLL
division.ads
with System;
with Interfaces.C;
package Division is
--Neither of these work
procedure DllMainCRTStartup ;
pragma Export (StdCall, DllMainCRTStartup , "DllMainCRTStartup"); --Edited as noticed by Brian
-- procedure DllMain
-- pragma Export (StdCall, DllMain , "DllMain ");
function Div (A : in INTEGER; B : in INTEGER) return INTEGER;
pragma Export (C, Div, "MyDivision");
-- --If I put this, it does not compile... maybe a wrong linkage option set?
-- procedure AdaInit;
-- pragma Import (C, AdaInit, "adainit");
end Division;
division.adb
with text_io;
package body Division is
procedure DllMainCRTStartup is begin --DllMain or DllMainCRTStartup
text_io.put("INIT CODE YEAH!!!*************!"); --This does not execute :(
--AdaInit;
end DllMainCRTStartup ;
function Div(A : in INTEGER; B : in INTEGER) return INTEGER is
X : INTEGER := A/B;
begin
return X;
end Div;
end Division;
和GPR:
library project Proj_Name is
for Library_Name use "math";
for Object_Dir use "obj";
for Source_Dirs use ("src");
for Library_Dir use "lib";
for Library_Interface use ("Division");
for Library_Kind use "dynamic";
for Library_Options use ("-LC:\GNAT\2015\lib\gcc\i686-pc-mingw32\4.9.3\adalib",
"-LC:\GNAT\2015\lib\gcc\i686-pc-mingw32\4.9.3\adalib\libgnat");
end Proj_Name;
我正在用python测试dll,用ctypes。我用ctypes.CDLL导入它,我可以使用MyDivision。但是,导入dll时init代码不运行,因为text_io未执行。
在另一方面,如果我的AdaInit程序添加到代码编译时,我得到这样的:
undefined reference to `adainit'
非常感谢您!
“adainit”不是你写或提供。在任何Ada代码(例如“crt0.c”)运行之前(通常不可见),在main()在C程序中调用之前,框架通常会运行该命令来初始化Ada RTS。但是,这并不能解释为什么你的DLL启动没有被调用。奇怪的是:为什么导出的名称中有一个空格? –
Ups ...错字。但是,我改变了它,但它没有工作:( – gccinac