Re: Need some Unix and /bin/sh expertise for GCC testsuite

[Dave Korn <dave dot korn dot cygwin at googlemail dot com>]

Laurent GUERBY wrote:

> gnatmake uses Non_Blocking_Spawn to call the compiler (gnatmake supports
> "-j N" like make), but for the gnatlink call (we see in the "ps fauxww")
> it uses in gcc/ada/make.adb:
> 
>    procedure Link
> ...
>       GNAT.OS_Lib.Spawn (Gnatlink_Path.all, Link_Args, Success);
>    end Link;
> 
> which ends up calling gcc/ada/s-os_lib.adb
> 
>       Spawn_Internal (Program_Name, Args, Result, Junk, Blocking =>
> True);
> ...
>          function Portable_Spawn (Args : Address) return Integer;
>          pragma Import (C, Portable_Spawn, "__gnat_portable_spawn");
> 
> which ends up calling in gcc/ada/adaint.c:
> 
> int
> __gnat_portable_spawn (char *args[])
> ...
>   pid = fork ();
>   if (pid < 0)
>     return -1;
> 
>   if (pid == 0)
>     {
>       /* The child. */
>       if (execv (args[0], MAYBE_TO_PTR32 (args)) != 0)
> 	_exit (1);
>     }
> 
>   /* The parent.  */
>   finished = waitpid (pid, &status, 0);
> 
>   if (finished != pid || WIFEXITED (status) == 0)
>     return -1;
> 
>   return WEXITSTATUS (status);
> }

  Hmpf.  That seems to rule out that theory.  Gnatlink is still spawning the
gcc driver to link, rather than the linker itself; maybe the driver's doing
something wrong?  Is collect-ld a shell script or an executable on your host?

    cheers,
      DaveK