The x32 system call ABI [LWN.net]

The x32 system call ABI

Posted Apr 16, 2012 6:56 UTC (Mon) by paulj (subscriber, #341)
In reply to: The x32 system call ABI by khim
Parent article: The x32 system call ABI

Because it lets you have access to the 64bit arithmetic capabilities of the hardware, even when you don't need the 64bit addressing capabilities.

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The x32 system call ABI

Posted Apr 16, 2012 9:00 UTC (Mon) by khim (subscriber, #9252) [Link] (1 responses)

What's wrong with using long long for that?

The x32 system call ABI

Posted Apr 16, 2012 11:07 UTC (Mon) by paulj (subscriber, #341) [Link]

Hmm, good point. Actually, I think in IRIX n32 it was indeed "long long" that was 64bit! (Making 64bit long risked breaking software that assumed sizeof(long) == sizeof(void *) and tried to store longs in pointers).