| Michael J. Spencer | d01c8fe | 2012-04-08 02:06:04 +0000 | [diff] [blame] | 1 | .. _index: |
| 2 | |
| 3 | lld - The LLVM Linker |
| 4 | ===================== |
| 5 | |
| 6 | lld is a new set of modular code for creating linker tools. |
| 7 | |
| 8 | * End-User Features: |
| 9 | |
| 10 | * Compatible with existing linker options |
| 11 | * Reads standard Object Files (e.g. ELF, Mach-O, PE/COFF) |
| 12 | * Writes standard Executable Files (e.g. ELF, Mach-O, PE) |
| 13 | * Fast link times |
| 14 | * Minimal memory use |
| 15 | * Remove clang's reliance on "the system linker" |
| 16 | * Uses the LLVM `"UIUC" BSD-Style license`__. |
| 17 | |
| 18 | * Applications: |
| 19 | |
| 20 | * Modular design |
| 21 | * Support cross linking |
| 22 | * Easy to add new CPU support |
| 23 | * Can be built as static tool or library |
| 24 | |
| 25 | * Design and Implementation: |
| 26 | |
| 27 | * Extensive unit tests |
| 28 | * Internal linker model can be dumped/read to textual format |
| 29 | * Internal linker model can be dumped/read to a new native format |
| 30 | * Native format designed to be fast to read and write |
| 31 | * Additional linking features can be plugged in as "passes" |
| 32 | * OS specific and CPU specific code factored out |
| 33 | |
| 34 | Why a new linker? |
| 35 | ----------------- |
| 36 | |
| 37 | The fact that clang relies on whatever linker tool you happen to have installed |
| 38 | means that clang has been very conservative adopting features which require a |
| 39 | recent linker. |
| 40 | |
| 41 | In the same way that the MC layer of LLVM has removed clang's reliance on the |
| 42 | system assembler tool, the lld project will remove clang's reliance on the |
| 43 | system linker tool. |
| 44 | |
| 45 | |
| 46 | Current Status |
| 47 | -------------- |
| 48 | |
| 49 | lld is in its very early stages of development. |
| 50 | |
| Michael J. Spencer | 31dffbb | 2013-01-15 02:00:48 +0000 | [diff] [blame^] | 51 | On Linux it can currently statically link `Lua_` against both `diet libc_` + |
| 52 | `OpenLibm_` and `musl_` on x86-64. It can not currently link against glibc due |
| 53 | to unimplemented features. |
| 54 | |
| 55 | .. _Lua: http://www.lua.org/ |
| 56 | .. _diet libc: http://www.fefe.de/dietlibc/ |
| 57 | .. _OpenLibm: https://github.com/JuliaLang/openlibm#readme |
| 58 | .. _musl: http://www.musl-libc.org/ |
| 59 | |
| Michael J. Spencer | d01c8fe | 2012-04-08 02:06:04 +0000 | [diff] [blame] | 60 | Source |
| 61 | ------ |
| 62 | |
| 63 | lld is available in the LLVM SVN repository:: |
| 64 | |
| 65 | svn co http://llvm.org/svn/llvm-project/lld/trunk |
| 66 | |
| 67 | lld is also available via the read-only git mirror:: |
| 68 | |
| 69 | git clone http://llvm.org/git/lld.git |
| 70 | |
| 71 | Contents |
| 72 | -------- |
| 73 | |
| 74 | .. toctree:: |
| 75 | :maxdepth: 2 |
| 76 | |
| 77 | design |
| Michael J. Spencer | 365f1ec | 2012-04-25 19:34:24 +0000 | [diff] [blame] | 78 | getting_started |
| Michael J. Spencer | d01c8fe | 2012-04-08 02:06:04 +0000 | [diff] [blame] | 79 | development |
| 80 | open_projects |
| 81 | sphinx_intro |
| 82 | |
| 83 | Indices and tables |
| 84 | ------------------ |
| 85 | |
| 86 | * :ref:`genindex` |
| 87 | * :ref:`search` |
| 88 | |
| 89 | __ http://llvm.org/docs/DeveloperPolicy.html#license |