Messages in this thread | | | Date | Fri, 19 Apr 2002 16:42:35 -0700 (PDT) | From | "Randy.Dunlap" <> | Subject | Re: unresolved symbol: __udivdi3 |
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do_div(n, base) is defined (in some versions of the div64.h files) to be:
n = n / base; return rem;
so the first arg is modified.
~Randy
On Fri, 19 Apr 2002, Ben Greear wrote:
| Also, for what it's worth, do_div on x86 seems to corrupt arguments | given to it, and may do other screwy things. I'm just going to | go back to casting and let user-space do any precise division. | | David S. Miller wrote: | | > From: Ben Greear <greearb@candelatech.com> | > Date: Fri, 19 Apr 2002 14:58:10 -0700 | > | > then I get another unresolved symbol: | > __umodi3 | > | > Someone needs to add this routine under arch/sparc/lib/ | > | > I'm guessing that there is some optimization the compiler is doing that | > is using the mod operator somehow, but I am unsure about how to work around | > this. | > | > "guessing"? Have a look the definition of do_div in asm-sparc/div64.h | > it explicitly does a mod operation :-)
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