main function: argc is negative number

Question

Hi fellow programmers;

I am writing a cross platform linker using the Microsoft SDK
but the argc argument is negative. I have written a batch
script to build the test program which is called main_Test1.bat.

The following is the batch script:

cl.exe /c /TC /Gz /MD /w main_Test1.c

CD ..\objs

link.exe /SUBSYSTEM:CONSOLE /ENTRY:test_main /OUT:..\tests\main_Test1.exe ..\tests\main_Test1.obj ^
factory.obj io.obj main.obj util.obj vlid.obj kernel32.lib msvcrt.lib

CD ..\tests

PAUSE

The following is the code:

int test_main(int argc, char *argv[], char *env[]){

 //Variable declarations.
 int ret;

 //Argument checks.

 //Initializations.

 //Main logic.
 printf("\nargc = %d\n", argc);

}

When I build and run the test program, I get a negative number
for argc.

Answer 1

Give this C example a try -- set the entry point to RawEntryPoint. Make sure to link with all the defaults. Its easiest to test this by building it in the VS IDE.

    #include <stdio.h>

    int mainCRTStartup();

    int __stdcall RawEntryPoint(void)
    {
        return mainCRTStartup();
    }

    int main(int argc, char *argv[], char *env[]) {

        //Variable declarations.
        int ret;

        //Argument checks.

        //Initializations.

        //Main logic.
        printf("\nargc = %d\n", argc);

    }