int
ptrace_machdep_dorequest(
struct lwp *l,
struct lwp *lt,
int req,
void *addr,
int data
)
{
struct uio uio;
struct iovec iov;
int write = 0;
switch (req) {
case PT_SETXMMREGS:
write = 1;
case PT_GETXMMREGS:
/* write = 0 done above. */
if (!process_machdep_validxmmregs(lt->l_proc))
return (EINVAL);
else {
struct vmspace *vm;
int error;
error = proc_vmspace_getref(l->l_proc, &vm);
if (error) {
return error;
}
iov.iov_base = addr;
iov.iov_len = sizeof(struct xmmregs);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_offset = 0;
uio.uio_resid = sizeof(struct xmmregs);
uio.uio_rw = write ? UIO_WRITE : UIO_READ;
uio.uio_vmspace = vm;
error = process_machdep_doxmmregs(l, lt, &uio);
uvmspace_free(vm);
return error;
}
}
#ifdef DIAGNOSTIC
panic("ptrace_machdep: impossible");
#endif
return (0);
}
int
procfs_machdep_validxmmregs(struct lwp *l, struct mount *mp)
{
return process_machdep_validxmmregs(l->l_proc);
}
