On Thu, 20 Jun 2002, mohan kumar wrote:
> hi,
> iam using some c++ code in kernel module and am using
> gcc 2.95.3. My code compiles under gcc 2.91.66 but
> complaines in the newer version. the code that poses
> the problem is
>
> #define __flush_tlb()
> do {
> unsigned int tmpreg; \
> __asm__ __volatile__( \
> "movl %%cr3, %0; # flush TLB \n" \
> "movl %0, %%cr3; \n" \
> : "=r" (tmpreg) \
> :: "memory"); \
> } while (0)
>
>
> The : and :: used in the inline assembly pose the
> problem. it also happens in couple of other places.
> how can i solve this problem. iam not versed in inline
> assembly and this problem frustates me. also can some
> one point me where to find some docs about inline
> assembly for gcc?
I don't know how to fix your code; it may be that you will need to compile
it in C rather than C++ to make it work. But I can tell you where inline
assembly for gcc is documented: in the info files. Try doing "info gcc",
and navigate through the C Extensions section to the Extended Asm node.
Alan Stern
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