diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/GoldPlugin.rst | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/docs/GoldPlugin.rst b/docs/GoldPlugin.rst index 17bbeb8ba9..be71f5f2ab 100644 --- a/docs/GoldPlugin.rst +++ b/docs/GoldPlugin.rst @@ -66,10 +66,8 @@ look for the line where it runs ``collect2``. Replace that with ready to switch to using gold, backup your existing ``/usr/bin/ld`` then replace it with ``ld-new``. -You can produce bitcode files from ``clang`` using ``-emit-llvm`` or -``-flto``, or the ``-O4`` flag which is synonymous with ``-O3 -flto``. - -Any of these flags will also cause ``clang`` to look for the gold plugin in +You should produce bitcode files from ``clang`` with the option + ``-flto``. This flag will also cause ``clang`` to look for the gold plugin in the ``lib`` directory under its prefix and pass the ``-plugin`` option to ``ld``. It will not look for an alternate linker, which is why you need gold to be the installed system linker in your path. @@ -153,7 +151,6 @@ everything is in place for an easy to use LTO build of autotooled projects: export AR="$PREFIX/bin/ar" export NM="$PREFIX/bin/nm" export RANLIB=/bin/true #ranlib is not needed, and doesn't support .bc files in .a - export CFLAGS="-O4" * Or you can just set your path: @@ -163,7 +160,6 @@ everything is in place for an easy to use LTO build of autotooled projects: export CC="clang -flto" export CXX="clang++ -flto" export RANLIB=/bin/true - export CFLAGS="-O4" * Configure and build the project as usual: .. code-block:: bash |