On Mon, Mar 14, 2016, at 06:42 PM, Dmitri Gribenko wrote: > On Mon, Mar 14, 2016 at 3:38 PM, Ryan Lovelett > <swift-...@ryan.lovelett.me> wrote: > > On Tue, Mar 1, 2016, at 12:16 AM, Dmitri Gribenko wrote: > >> IIRC there is no issue in the bug tracker, please feel free to file one! > >> > >> Also, if you are familiar with binutils internals, it might be helpful > >> to bisect the linker. > > > > I'm finally getting around to bisecting binutils. I'm making some > > progress but I'm getting hung up on one thing. The build script keeps > > finding the "regular" linker at `/usr/bin/ld` instead of mine > > `/tmp/binutils/2.25/usr/local/bin/ld`. > > > > I tried to update the PATH environment variable such that mine is before > > `/usr/bin` but that doesn't seem to work. Is there an argument to send > > that can force mine? > > I'm afraid '/usr/bin/ld' is hardcoded in clang. A few days ago Clang > added a command-line option to override that:
Interesting learned something new. > > commit 635bc7fefc12cc1333ba6ec77e563b7c8af01265 > Author: Peter Zotov <whitequ...@whitequark.org> > Date: Wed Mar 9 05:18:16 2016 +0000 > > Accept absolute paths in the -fuse-ld option. > > This patch extends the -fuse-ld option to accept a full path to an > executable > and use it verbatim to invoke the linker. There are generally two > reasons > to desire this. > > The first reason relates to the sad truth is that Clang is > retargetable, > Binutils are not. > > While any Clang from a binary distribution is sufficient to compile > code > for a wide range of architectures and prefixed BFD linkers (e.g. > installed as /usr/bin/arm-none-linux-gnueabi-ld) as well as > cross-compiled > libc's (for non-bare-metal targets) are widely available, including > on all > Debian derivatives, it is impossible to use them together because > the -fuse-ld= option allows to specify neither a linker prefix nor > a full path to one. > > The second reason is linker development, both when porting existing > linkers > to new architectures and when working on a new linker such as LLD. > > Differential Revision: http://reviews.llvm.org/D17952 > > git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262996 > 91177308-0d34-0410-b5e6-96231b3b80d8 > > Dmitri > > -- > main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if > (j){printf("%d\n",i);}}} /*Dmitri Gribenko <griboz...@gmail.com>*/ _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
