I don't remember the details, but I believe LLD-generated executables are fine with either Linux or on NetBSD
On Thu, Jun 8, 2017 at 3:08 PM, Kamil Rytarowski <n...@gmx.com> wrote: > On 08.06.2017 22:39, Rui Ueyama wrote: > > On Wed, Jun 7, 2017 at 6:55 AM, Joerg Sonnenberger via Phabricator > > <revi...@reviews.llvm.org <mailto:revi...@reviews.llvm.org>> wrote: > > > > joerg added a comment. > > > > In https://reviews.llvm.org/D33726#774105 > > <https://reviews.llvm.org/D33726#774105>, @ruiu wrote: > > > > > I'm totally against adding per-OS path knowledge to our linker. > Compilers already know include paths and I don't want to maintain another > list of paths in the linker. Also this can be more confusing than useful > when you are doing cross-linking. > > > > > > The only reason for compilers to maintain that list is for finding > > crt*.o. They otherwise don't care about the library paths at all. > > There is no confusion for cross-linking as long as proper sysroot > > support is used. Which we have been doing on NetBSD for ages. > > > > > > That's not what clang is trying to do for all Unix-like systems (except > > NetBSD due to the bug), right? The compiler driver actually passes > > library paths to the linker. If you think that is wrong, you should make > > a change to stop doing that on all systems. I don't see a reason to not > > do this only on NetBSD. > > > > I'm convinced that Joerg is right, that there is need some knowledge on > the LLD side. I'm more relaxed about -L paths as long as they work for > regular use-cases, but DT_RPATH vs DT_RUNPATH behaves differently on > Linux and NetBSD. > > > > For all OSes other than NetBSD, LLD works fine with the clang > driver as the driver passes include paths to the linker. I don't see any > reason not to do the same thing for NetBSD. That stands even if the linker > has to have a list of include paths. > > > > Sorry, but this is again ignorant and wrong. The very same problem > > of build systems calling ld directly apply on most other systems. > > Even then, the list of linker paths is not the only OS-specific > > knowledge. Things like the DT_RPATH vs DT_RUNPATH mess, init vs > > init_array all belong into this category. The list goes on. > > > > > > Repository: > > rL LLVM > > > > https://reviews.llvm.org/D33726 <https://reviews.llvm.org/D33726> > > > > > > > > > > >
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