[cfe-dev] odcctools-20090808

[Chris Lattner]

On Aug 8, 2009, at 2:03 PM, Peter O'Gorman wrote:

> Hi,
>
> I spent some time a month or so ago bringing odcctools up to the  
> latest
> Xcode-3.1.2 source release. I had planned to do more, but got  
> distracted
> by work etc. So I thought I had better make some kind of release of  
> what
> I had done.

Hi Peter,

What is odcctools?

-Chris

>
> This release is only minimally tested, I built a couple of "hello  
> world"
> type programs on my linux/x86 system and ran them on my darwin/x86
> machine without problems using both a gcc cross compiler and clang. No
> serious testing has been done. I have not tested it at all on darwin,
> though it did at least build for me once, a few weeks ago.
>
> Other notable things:
> ld64 has a -force_load flag to load all members of specific archives.
> (this is a feature from the iphoneos 3.0 source release).
> ld64 will use libLTO if configure detects it.
> Builds as for all 5 arches.
> requires libuuid.
>
> I don't have much time to devote to odcctools, however if you have
> problems, please do email me. If you want the problems fixed soon,
> sending patches will help.
>
> This release wouldn't have been possible without the previous work of
> Shantonu Sen, and Apple's release of the source code for all the
> projects that are required to build ld64 and cctools (I hope the  
> sources
> for the new projects that are required to build the ld64/cctools for  
> Mac
> OS X 10.6 are also made available when that is released).
>
> The tarball is available here (yes, it is just checked in to svn):
> http://svn.macosforge.org/repository/odcctools/release/odcctools-20090808.tar.bz2
> SHA1 sum is:
> 8099a75396d5ac1621f04c977212067d97e3c540
>
> The svn repository is hosted at macosforge.org
> (http://svn.macosforge.org/repository/odcctools/trunk/).
>
> For clang, I used this small patch to make sure that clang tried for
> <triple>-tool before trying plain tool:
> Index: lib/Driver/ToolChain.cpp
> ===================================================================
> --- lib/Driver/ToolChain.cpp    (revision 77972)
> +++ lib/Driver/ToolChain.cpp    (working copy)
> @@ -31,5 +31,8 @@
> llvm::sys::Path ToolChain::GetProgramPath(const Compilation &C,
>                                           const char *Name,
>                                           bool WantFile) const {
> +  std::string prefixedName = getTripleString() + "-" + Name;
> +  llvm::sys::Path prefixed =
> Host.getDriver().GetProgramPath(prefixedName.c_str(), *this,  
> WantFile);
> +  if (prefixed.exists()) return prefixed;
>   return Host.getDriver().GetProgramPath(Name, *this, WantFile);
> }
>
> I am not sure that it is the "correct" way to do it, but it seemed to
> work for me.
>
> Also, I really like how, with clang, it is not necessary to build a
> cross compiler, just clang -ccc-host-triple i386-apple-darwin9.7 -c -o
> foo foo.c, and I have a working foo.
>
> Thanks,
> Peter
> -- 
> Peter O'Gorman
> http://pogma.com
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