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On Sat, Dec 4, 2010 at 4:43 PM, H.J. Lu <hjl.tools@gmail.com> wrote: > On Sat, Dec 4, 2010 at 9:34 AM, H.J. Lu <hjl.tools@gmail.com> wrote: >> On Fri, Dec 3, 2010 at 10:07 PM, H.J. Lu <hjl.tools@gmail.com> wrote: >>> On Fri, Dec 3, 2010 at 6:34 PM, H.J. Lu <hjl.tools@gmail.com> wrote: >>>> On Fri, Dec 3, 2010 at 6:23 PM, Dave Korn <dave.korn.cygwin@gmail.com> wrote: >>>>> On 04/12/2010 01:24, H.J. Lu wrote: >>>>> >>>>>> I checked in a patch to implement stage 2 linking. Everything >>>>>> seems to work, including "gcc -static ... -lm". >>>>> >>>>> ?Any chance you could send a complete diff? >>>>> >>>> >>>> I will submit a complete diff after I fix a few corner cases. >>>> In the meantime, you can clone my git tree and do a "git diff". >>>> >>> >>> Hi, >>> >>> This patch implements 2 stage BFD linker for LTO plugin. >>> It works with current LTO API on all cases I tested. >>> >>> Known issue: ?--whole-archive will call plugin on archives with IR >>> in stage 2 linking. But ld never calls plugin to get back object files. >>> I will try to avoid it in a follow up patch. >>> >> >> This turns out not a problem. In stage 2 linking, for --whole-archive >> we call plugin to get symbols in the IR element of an archive and >> it will be ignored for stage 2 linking. ?It is OK since we already get >> the trans object files back for stage 2 linking. >> >> BTW, the new linker passed bootstrap-lto with all default languages. >> I am planning to include this patch in the next Linux binutils. >> > > I missed the IR object in an archive: > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42690#c34 > > This updated patch fixed it. ?OK for trunk? > We shouldn't clear SEC_EXCLUDE if BFD_PLUGIN is set: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42690#c38 This updated patch fixed it. OK for trunk? Thanks. -- H.J.
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binutils-2stage-4.patch
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