status of Darwin support

[Tristan Gingold]

On Aug 11, 2009, at 7:06 AM, Paul Pluzhnikov wrote:

> On Mon, Aug 10, 2009 at 1:20 PM, Paul Pluzhnikov<ppluzhnikov@google.com 
> > wrote:
>
>> I will try to reproduce the Darwin failure, but I won't get to my Mac
>> until later tonight.
>
> I couldn't get GDB to even run the program:
>
> ../gdb ../a.out
> GNU gdb (GDB) 6.8.50.20090811-cvs
> ...
> (gdb) r
> Starting program: /Users/ppluzhnikov/gdb-cvs/build/gdb/a.out
> Unable to find Mach task port for process-id 98005: (os/kern)  
> failure (0x5).
> (please check gdb is setgid procmod)
> (gdb) q
>
> This even if I make GDB suid-root (I also tried setgid procmod):
> ls -l ../gdb
> -rwsr-sr-x  1 root  wheel  4075816 Aug 10 20:21 ../gdb

IIRC root/wheel doesn't work.  You need setgid procmod only.

Which version of MacOS-X are you using ?

> Error 5 is EIO in /usr/include/sys/errno.h

Except this is not a unix error number but a Mach one :-)

Tristan.