On Thu, Jun 23, 2016 at 09:01:30PM -0700, Davide Italiano wrote: > LLVM currently ships with a new ELF linker http://lld.llvm.org/. > I experiment a lot with gcc and lld so it would be nice if > -fuse-ld=lld is supported (considering the linker is now mature enough > to link large C/C++ applications). > > Also, IMHO, -fuse-ld should be a generic facility which accept other > linkers (as long as they follow the convention ld.<arg>), and should > also support absolute path, e.g. -fuse-ld=/usr/local/bin/ld.mylinker. > Probably outside of the scope of this patch, but I thought worth > mentioning.
This can never work correctly. The many HAVE_LD_* flags are set for the linker you are configured against. Now normally GNU ld and Gold will be built from the same tree, so they will be at least mostly compatible. But for some other linker that cannot ever work. If you can choose a random linker at runtime then the linker features the compiler is built for will almost certainly not match those that linker has. You can built with --with-ld=/some/path/to/your/lld, and *that* should work fine. But -fuse-ld=/smth/random will result in randomness. Segher
