makecontext and its arguments

[Andreas Schwab]

Ulrich Drepper <drepper@redhat.com> writes:

|> Andreas Jaeger wrote:
|> > That interpretation of long causes problems for x86-64 since ints are
|> > not sign extented when passed in varargs...
|> 
|> How about fixing this mistake in the compiler with a function attribute?

???  There is no way to find out the right type in va_arg.  Either the
types match, or you get undefined behaviour.  If you pass an int and
retrieve it as a long all bets are off.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."