Andreas Schwab <sch...@linux-m68k.org> writes:
> Dennis Clarke <dcla...@blastwave.org> writes:
>
>> for (argno = 0; argno < argc; argno++) {
>> if (argno < 6)
>> *tsp++ = reg[REG_O0 + argno] = va_arg(ap, long);
>> else
>> *tsp++ = va_arg(ap, long);
>
> This is broken. The arguments are of type int, not long.
I suspect that the error of using "int" is one of the reasons why
makecontext has been removed from POSIX. Thought I don't know why it
was not replaced with a proper version.
In this case, where the arguments are passed via registers anyhow, using
long rather than int will always work for int, and will additionally
work for void*, so using long is a good practical choice: it will work
for correct code, and will make incorrect code which uses pointers more
likely to work.
Ian
