llvm dev - Oct 2009 - [LLVMdev] I have built a whole-program bitcode file foropenldap-2.19

I haven't test it completely for Apache , when I finish that I will post it
ASAP.

BTW, Have you archieved the same goal with gold-plugin???I once tried it but
just got a failure for llvm tools is not completely compatible with GNU ones.


----- Original Message ----- 
From: "Keppler, Dave" <dkeppler at mitre.org>
To: "Nan Zhu" <zhunansjtu at gmail.com>; <llvmdev at
cs.uiuc.edu>
Sent: Saturday, October 31, 2009 12:10 AM
Subject: RE: [LLVMdev] I have built a whole-program bitcode file
foropenldap-2.19

>I have written a wrapper which includes gcc/g++,ld and llvm counterparts,
>it invokes native or llvm compiler and linker according to the options it
>receives,after I replace the native tools with my wrapper in libtool
>script, I just typed like this
>
>make CC=wrapper AC_CFLAGS=-emit-llvm
>
>then I got a bc file of slapd and other tools in clients directory
>
>The accessory is the whole-program bitcode file of slapd
>
>(My platform is Fedora11 x86_64+E6300)
>
>the method can also be applied to many GNU projects but there may be some
>other problems when I treat to BIND,I'm checking it..
>
>Thank you
>
>
Are you able to post the wrapper some place?  I'm interested in comparing
this against the gold-plugin method.

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> BTW, Have you archieved the same goal with gold-plugin???I once tried it
but just got a failure for llvm tools is not completely compatible with GNU
ones.
Do you remember what was the failure?

Cheers,
-- 
Rafael Ávila de Espíndola

I'm not completely sure but something like the build system will still call
the native linker when it meets a LLVM object file which causes an error.

I once tried to modify the codes of gold-plugin, but the trouble is still
there,I think we should hack collect2 of llvm-gcc to make it invoke llvm-ld
automatically when it receive the -emit-llvm option(I once tried this, but I
found that even llvm-gcc has received such a option it will not pass it to
-emit-llvm, I attempted to do something on llvm-gcc,but I'm not familiar
with GCC's src)



2009/10/31 Rafael Espindola <espindola at google.com>
> > BTW, Have you archieved the same goal with gold-plugin???I once tried
it
> but just got a failure for llvm tools is not completely compatible with GNU
> ones.
>
> Do you remember what was the failure?
>
> Cheers,
> --
> Rafael Ávila de Espíndola
>
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