[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [XenPPC] [Patch] Detect non hypervisor hardware
On Mon, 2006-04-17 at 15:41 -0400, Jimi Xenidis wrote: > On Apr 17, 2006, at 12:12 PM, Hollis Blanchard wrote: > > > > I think you're missing my point: I'm talking about initializing > > opt_nohv > > and opt_earlygdb. These are global variables, and so they will land in > > the .bss section. > > > Ahh this is my fault. > *Spec geek voice --ON--* > The explicit zeroing of a "tentative definition with external > linkage" didn't come out until C99 > *Spec geek voice --OFF--* > > This is an old habit of mine that costs _nothing_ since assigning it > to zero generates the same assmebler definition. It is a style issue, but as I noted elsewhere it can have an (admittedly minor) impact .data size with some compilers. > Is it common Linux practice not to do this? > The Xen guys assign to zero even with static decls :) As I explained in my other mail: - yes, it is standard Linux practice not to do this. - other Xen code only sometimes assigns to zero, and in the code I saw it was far more common not to. I don't mean to be a jerk, but I think we all have better things to do than discuss coding style. Is this conversation really worth continuing? -- Hollis Blanchard IBM Linux Technology Center _______________________________________________ Xen-ppc-devel mailing list Xen-ppc-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ppc-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |