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| author | Martin Storsjo <martin@martin.st> | 2019-01-05 10:43:59 +0000 |
|---|---|---|
| committer | Martin Storsjo <martin@martin.st> | 2019-01-05 10:43:59 +0000 |
| commit | 5abe10ac210893178a17d3863707340f2cadbb30 (patch) | |
| tree | 8fee20ef3543b5f3012e702736a8fc336a3e8c4e /lld/MinGW | |
| parent | 65038515ee4465d20103b2c32b337a76a2c63b53 (diff) | |
| download | llvm-project-5abe10ac210893178a17d3863707340f2cadbb30.tar.gz | |
[MinGW] Expand comment for MinGW driver. NFC.
Originally authored by Rui Ueyama.
Differential Revision: https://reviews.llvm.org/D53031
llvm-svn: 350464
Diffstat (limited to 'lld/MinGW')
| -rw-r--r-- | lld/MinGW/Driver.cpp | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/lld/MinGW/Driver.cpp b/lld/MinGW/Driver.cpp index d682baf592a1..def769bb9125 100644 --- a/lld/MinGW/Driver.cpp +++ b/lld/MinGW/Driver.cpp @@ -6,9 +6,27 @@ // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// -/// -/// GNU ld style linker driver for COFF currently supporting mingw-w64. -/// +// +// MinGW is a GNU development environment for Windows. It consists of GNU +// tools such as GCC and GNU ld. Unlike Cygwin, there's no POSIX-compatible +// layer, as it aims to be a native development toolchain. +// +// lld/MinGW is a drop-in replacement for GNU ld/MinGW. +// +// Being a native development tool, a MinGW linker is not very different from +// Microsoft link.exe, so a MinGW linker can be implemented as a thin wrapper +// for lld/COFF. This driver takes Unix-ish command line options, translates +// them to Windows-ish ones, and then passes them to lld/COFF. +// +// When this driver calls the lld/COFF driver, it passes a hidden option +// "-lldmingw" along with other user-supplied options, to run the lld/COFF +// linker in "MinGW mode". +// +// There are subtle differences between MS link.exe and GNU ld/MinGW, and GNU +// ld/MinGW implements a few GNU-specific features. Such features are directly +// implemented in lld/COFF and enabled only when the linker is running in MinGW +// mode. +// //===----------------------------------------------------------------------===// #include "lld/Common/Driver.h" |