Hi guys,
I am writing a toy syscall to test kernel code, and I use
something like the following code:
int
syskiconv(long *lp, rval_t *rp)
{
size_t ret;
...
ret = kiconvstr(...); //kiconvstr require 8 parameters
...
rp->r_vals = (int64_t)ret;
return (0);
}
and I use the following entry as sysent in sysent.c
/* 65 */ SYSENT_AP("syskiconvstr", syskiconvstr, 8),
The above code return correct value to user level function if
I use -xarch=v9 compiler option, but always return '0' if
without -xarch=v9 option. Why? (syscall_ap should return correct
int64_t value to user level from my understanding) any suggestions?
Thank you in advance!
Regards,
Yandong
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