3 <style type="text/css">
4 .none { background-color: #FFCCCC }
5 .partial { background-color: #FFFF99 }
6 .good { background-color: #CCFF99 }
17 LLD supports Windows operating system. When invoked as ``lld-link.exe`` or with
18 ``-flavor link``, the driver for Windows operating system is used to parse
19 command line options, and it drives further linking processes. LLD accepts
20 almost all command line options that the linker shipped with Microsoft Visual
21 C++ (link.exe) supports.
23 The current status is that LLD is used to link production builds of large
24 real-world binaries such as Firefox and Chromium.
30 :good:`Mostly done`. Some exotic command line options that are not usually
31 used for application development, such as ``/DRIVER``, are not supported.
34 :good:`Done`. LLD can read import libraries needed to link against DLL. Both
35 export-by-name and export-by-ordinal are supported.
37 Linking against static library
38 :good:`Done`. The format of static library (.lib) on Windows is actually the
39 same as on Unix (.a). LLD can read it.
42 :good:`Done`. LLD creates a DLL if ``/DLL`` option is given. Exported
43 functions can be specified either via command line (``/EXPORT``) or via
44 module-definition file (.def). Both export-by-name and export-by-ordinal are
47 Windows resource files support
48 :good:`Done`. If an ``.res`` file is given, LLD converts the file to a COFF
49 file using LLVM's Object library.
51 Safe Structured Exception Handler (SEH)
52 :good:`Done` for both x86 and x64.
54 Module-definition file
55 :partial:`Partially done`. LLD currently recognizes these directives:
56 ``EXPORTS``, ``HEAPSIZE``, ``STACKSIZE``, ``NAME``, and ``VERSION``.
59 :good:`Done`. LLD can emit PDBs that are at parity with those generated by
60 link.exe. However, LLD does not support /DEBUG:FASTLINK.
66 The Windows version of LLD is included in the `pre-built binaries of LLVM's
67 releases <https://releases.llvm.org/download.html>`_ and in the `LLVM Snapshot
68 Builds <https://llvm.org/builds/>`_.
73 Using Visual Studio IDE/MSBuild
74 -------------------------------
76 1. Check out LLVM and LLD from the LLVM SVN repository (or Git mirror),
77 #. run ``cmake -G "Visual Studio 12" <llvm-source-dir>`` from VS command prompt,
78 #. open LLVM.sln with Visual Studio, and
79 #. build ``lld`` target in ``lld executables`` folder
81 Alternatively, you can use msbuild if you don't like to work in an IDE::
83 msbuild LLVM.sln /m /target:"lld executables\lld"
85 MSBuild.exe had been shipped as a component of the .NET framework, but since
86 2013 it's part of Visual Studio. You can find it at "C:\\Program Files
89 You can build LLD as a 64 bit application. To do that, open VS2013 x64 command
90 prompt and run cmake for "Visual Studio 12 Win64" target.
95 1. Check out LLVM and LLD from the LLVM SVN repository (or Git mirror),
96 #. run ``cmake -G ninja <llvm-source-dir>`` from VS command prompt,
105 * ``/build-id``: Always generate GUID hash. When PDB is generated, LLD uses PDB
106 content hash for GUID. Otherwise, LLD uses output binary content hash for GUID.
107 LLD also provides ``__buildid`` symbol pointing to the 16 bytes GUID hash if
108 there is a reference to it.