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| -rw-r--r-- | lld/docs/NewLLD.rst | 36 |
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diff --git a/lld/docs/NewLLD.rst b/lld/docs/NewLLD.rst index c7a54b075d3..989fde5c5cd 100644 --- a/lld/docs/NewLLD.rst +++ b/lld/docs/NewLLD.rst @@ -1,42 +1,6 @@ The ELF and COFF Linkers ======================== -We started rewriting the ELF (Unix) and COFF (Windows) linkers in May 2015. -Since then, we have been making a steady progress towards providing -drop-in replacements for the system linkers. - -Currently, the Windows support is mostly complete and is about 2x faster -than the linker that comes as a part of Micrsoft Visual Studio toolchain. - -The ELF support is in progress and is able to link large programs -such as Clang or LLD itself. Unless your program depends on linker scripts, -you can expect it to be linkable with LLD. -It is currently about 1.2x to 2x faster than GNU gold linker. -We aim to make it a drop-in replacement for the GNU linker. - -We expect that FreeBSD is going to be the first large system -to adopt LLD as the system linker. -We are working on it in collaboration with the FreeBSD project. - -The linkers are notably small; as of October 2016, -the COFF linker is about 7k lines and the ELF linker is about 18k lines, -while gold is 165K lines. - -The linkers are designed to be as fast and simple as possible. -Because it is simple, it is easy to extend to support new features. -It already supports several advanced features such section garbage -collection and identical code folding. - -The COFF linker supports i386, x86-64 and ARM. The ELF linker supports -i386, x86-64, x32, MIPS32, MIPS64, PowerPC, AMDGPU, ARM and Aarch64, -although the quality varies depending on platform. By default, LLD -provides support for all targets because the amount of code we have for -each target is so small. We do not even provide a way to disable -targets at compile time. - -There are a few key design choices that we made to achieve these goals. -We will describe them in this document. - The ELF Linker as a Library --------------------------- |
