undefined reference

undefined reference

[Ren Wang]

I am working on a project which calls _disable and _enable interrupt built
in functions in the Windows environment. I can build the code with /Oi with
Microsoft Visual Studio, but failed with gcc compiler with link errors:

undefined reference to _disable, _enable.

I have code included, very simple. I am not sure what the problem is,
please advise.

Regards,

Ren
---------------------------
#include <stdio.h>
#include <stdlib.h>
#include <intrin.h>
int main()
{
    _disable();
    printf("Hello world!\n");
    _enable();
    return 0;
}

Re: undefined reference

[Carlos O'Donell]

On Sun, Jun 5, 2022 at 6:14 AM Ren Wang via Libc-help
<libc-help@sourceware.org> wrote:
> I am working on a project which calls _disable and _enable interrupt built
> in functions in the Windows environment. I can build the code with /Oi with
> Microsoft Visual Studio, but failed with gcc compiler with link errors:

This mailing list is for help with GNU C Library (glibc) issues.

I would suggest sending email to gcc-help@gcc.gnu.org where gcc
developers might have an answer for you.

> I have code included, very simple. I am not sure what the problem is,
> please advise.
> ---------------------------
> #include <stdio.h>
> #include <stdlib.h>
> #include <intrin.h>

You need to make sure that you have included the right headers that
define the prototypes for _disable() and _enable().

> int main()
> {
>     _disable();
>     printf("Hello world!\n");
>     _enable();
>     return 0;
> }

Cheers,
Carlos.