On Tue, Mar 04, 2003 at 09:41:54AM -0800, Philip Brown wrote:
> On Tue, Mar 04, 2003 at 01:27:28PM +0000, Alan Cox wrote:
> > On Tue, 2003-03-04 at 08:22, Philip Brown wrote:
> > > "unsigned long" is semi-unspecified, but is reasonably assumed to be
> > > a 32-bit quantity.
> >
> > On all 64bit bit platforms I have met unsigned long is a 64bit quantity.
> > In fact I can't think of a single exception
>
> Well then, obviously, you dont use solaris :-)
He uses Solaris and compiles for 64-bit mode, rather than the 32-bit
mode you're compiling for.
> sparc$ ./t [compiled with gcc 2.95.2]
> Size of unsigned long is 4
> Size of long long is 8
> sparc$ isalist
> sparcv9+vis sparcv9 sparcv8plus+vis sparcv8plus sparcv8 sparcv8-fsmuld
> sparcv7 sparc
> [that confirms the sparc is running with a 64bit kernel]
The 64-bit kernel is perfectly capable of running 32-bit binaries, and
that's precisely what you're doing. Solaris in 64-bit mode is just like
every other 64-bit UNIX.
Every useful 32-bit UNIX is ILP32. Every mainstream 64-bit UNIX is
I32LP64. (Ignoring oddities like UNICOS.) If sizeof(long)==4, you're
on a 32-bit platform. If sizeof(long)==8, you're on a 64-bit platform.
$ uname -a
SunOS exa 5.8 Generic_108528-15 sun4u sparc SUNW,Ultra-5_10
$ cat foo.c
#include <stdio.h>
int main(void)
{
printf("void*=%d\nlong=%d\nint=%d\n",
sizeof(void*), sizeof(long), sizeof(int));
return 0;
}
$ cc foo.c
$ ./a.out
void*=4
long=4
int=4
$ cc -xarch=v9 foo.c
$ ./a.out
void*=8
long=8
int=4
$ cc -V
cc: Sun WorkShop 6 update 1 C 5.2 2000/09/11
usage: cc [ options] files. Use 'cc -flags' for details
-andy
-------------------------------------------------------
This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger
for complex code. Debugging C/C++ programs can leave you feeling lost and
disoriented. TotalView can help you find your way. Available on major UNIX
and Linux platforms. Try it free. www.etnus.com
_______________________________________________
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel
