James C. McPherson wrote:
> On 23/07/10 07:14 PM, 邓宁 wrote:
>>
>> Dear solaris gurus,
>> I have a stupid question when writing a program under solaris. In the
>> program, I want to use the system function ddi_fls() and ddi_ffs().
>> Can you show me how to use the ddi_XXXX() function in my userland code?
>
> I did a quick check using cscope on the ON gate, and I cannot
> find any example of these functions being used in userland.
> All the usage I find of them is in the kernel ($SRC/uts).
>
> When I read through $SRC/uts/common/sys/sunddi.h, I see that
> those functions are contained within an
>
> #ifdef _KERNEL
>
> block, so it seems to me that the manpage (and WDD) is incorrect
> because you cannot use these two functions outside of the kernel.
In userland code, you'd just use the standard ffs() in libc instead.
I don't know of a userland fls equivalent off hand though.
--
-Alan Coopersmith- [email protected]
Oracle Solaris Platform Engineering: X Window System
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