On 12/04/2009 08:29 PM, Bruce Dubbs wrote: > Ken Moffat wrote: >> 2009/12/5 Bruce Dubbs<bruce.du...@gmail.com>: >> >> A *bootstrap* build on x86_64 doesn't use that option, but we >> are passing it anyway (so, presumably, our second set of >> compilers are built differently from a bootstrap (and from our >> final set of compilers). > > -fomit-frame-pointer in this context is only an optimization to gcc > itself, not it's output. Does this optimization or lack of it really > make a difference for our intermediate compiler? > > -- Bruce > >
The issue is simply consistency in the book's instructions. Both GCC Pass 2 and GCC in Chapter 6 have a sed that adds -fomit-frame-pointer. However, in Chapter 6 this command is in a case statement that causes it to be applied for x86 only, but the command in GCC Pass 2 is not. If you are saying however that it is not important for the temporary compiler, then do you mean that the sed should be removed from Chapter 5 entirely? -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
