[Bug target/31990] udivdi3 not found for linux kernel

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from pinskia at gcc dot gnu dot org  2007-05-18 21:59 -------
(In reply to comment #4)
> Andy! 
Don't call me Andy!  It is childish.

> Taking your your advice to calm down I looked for the built-in.c file you
> wanted preprocessed. Well, it does not exist as built-in.o is a composite
> object file.

And how do I know that from your descirption of the bug?  As you just have:
kernel/built-in.o: In function `getnstimeofday':
(.text+0x1e48d): undefined reference to `__udivdi3'

Which is why I was asking for built-in.i because I thought like a normal code,
it was a normal object file and not an incremental linked one.

> The Kernel peoople being a more helpful and b) having more expertise asked for
> time.s and timekeeping.s out out time.c and timekeeping.c. I attached already
> both 
> to PR8501. and you can take it from there.

So attach time.i and timekeeping.i here which is exactly what we need.  Note
this is really only a missed optimization for GCC wise as if we call __udivdi3
now instead of doing it inlined, the code is just slower, libgcc contains
__udivdi3.  So the kernel needs to add the function but we can also fix GCC so
we don't produce that for a missed optimization


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31990