[OpenAFS-devel] Re: AFS & IA-64?

[Todd L Miller]

Dan said:

> We ran into this a while back. No fix available att.

	Was the problem understood/localized by then?  It looks like gcc3
is absolutely convinced that the ALLOC() call in rxgen/rpc_util.c in
storeval() returns something other than a void * pointer, or that a void *
pointer is not the same size as a list *.  (This is from, as suggested by
Nathan, using gdb on rxgen... the returned value looks like it's missing
the top 0x6000... that characterize the other pointers in the function; as
chas said:

> how about a traceback?  this is usally (on the ia64 anyway) failure to
> prototype functions that involve pointers.  usually the string/memory
> functions when dealing with afs.

	so perhaps gcc3 is convinced it should be casting the
(hopefully) 64-bit result returned from malloc() into a 32-bit pointer to
a list?  (OTOH, sizeof( list * ) == sizeof( void * )...))

> We use gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85).

	I tried compiling with cc -v = 

Reading specs from /usr/lib/gcc-lib/ia64-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85)

	and the assembler failed with a bunch of "Error: File number less
than one" messages.  Maybe the gcc3 upgrade blew away the assembler?


	On a wild hunch, having tried the line

void * voidlist = malloc(100);

	and been denied by the compiler, I tried explicitly #including
<malloc.h> -- and, lo and behold, the compiler stopped complaining, and
the build progressed much further.  (Linker is now complaining about 

/usr/bin/ld: ptuser.o: @gprel relocation against dynamic symbol pruclient

	which I will have to track down later.)  My guess is that many
of the warning's causes will become evident if compiled with
-Wstrict-prototypes/-Wall, but I don't have the time to check this right
now.  (I'll try to make time this afternoon.)


	So if you (Herbert) would try (a) compiling without optimizations,
to see if that fixes things (confirm not a compiler bug), and (b) making
sure everything that's complaining about int/pointer conversions has a
prototype [I will, as well, but since things aren't building quite right
for me anyway..], I think we could make some serious progress.

	Thanks to all.

-Todd L. Miller