Re: Undefined reference to __fentry__ on Windows 7.

[alby.gamper@gmail.com]

On Saturday, October 20, 2018 at 5:34:55 AM UTC+11, Simon Wright wrote:
> Petter Fryklund <petter.fryklund@atero.se> writes:
> 
> > I'm trying to make system call or spawn using GNAT.OS_lib. Both
> > results in undefined reference to __fentry__. What am I missing?
> 
> Googling __fentry__ finds
> https://unix.stackexchange.com/questions/259591/linux-kernel-missing-fentry-symbol,
> don't know if that's any use

Hi Peter

I am using msys2/mingw64 FSF 8.1 on windows 10 and the below sample works fine
(ie I get the "cmd /?" output in my debug window, note I am using my
Visual studio ada addin, called "Visual Ada") Note However that the Success
output parameter comes back as false! Not sure why. But it does seem to work.

Alex

--------------------------------------------------------------------------------
with GNAT.os_lib;
--------------------------------------------------------------------------------
procedure ConsoleApp1 is
    Args    : GNAT.os_lib.argument_list(1..1) := ( others => new string(1..2) );
    Success : Boolean;
begin
    Args(1).all := "/?";
    GNAT.os_lib.spawn("cmd", Args, Success);
end;