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0b5745abd8
The tools/lto API is not the best choice for implementing a gold plugin. Among other issues: * It is an stable ABI. Old errors stay and we have to be really careful before adding new features. * It has to support two fairly different linkers: gold and ld64. * We end up with a plugin that depends on a shared lib, something quiet unusual in LLVM land. * It hides LLVM. For some features in the gold plugin it would be really nice to be able to just get a Module or a GlobalValue. This change is intended to be a very direct translation from the C API. It will just enable other fixes and cleanups. Tested with a LTO bootstrap on linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211315 91177308-0d34-0410-b5e6-96231b3b80d8
The LLVM Gold LTO Plugin ======================== This directory contains a plugin that is designed to work with binutils gold linker. At present time, this is not the default linker in binutils, and the default build of gold does not support plugins. See docs/GoldPlugin.html for complete build and usage instructions. NOTE: libLTO and LLVMgold aren't built without PIC because they would fail to link on x86-64 with a relocation error: PIC and non-PIC can't be combined. As an alternative to passing --enable-pic, you can use 'make ENABLE_PIC=1' in your entire LLVM build.