llvm/tools/gold
Nick Lewycky 98245c7060 It's not obvious, but lto_module_create_from_memory doesn't need to use the
buffer after it creates the Module. Thus, we don't need to store this pointer
in claimed_file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 05:36:01 +00:00
..
gold-plugin.cpp It's not obvious, but lto_module_create_from_memory doesn't need to use the 2009-02-05 05:36:01 +00:00
Makefile Add LLVM plugin for gold. 2009-02-03 07:13:24 +00:00
README.txt mention that PIC is needed for libLTO and libLLVMgold 2009-02-04 19:12:25 +00:00

This directory contains a plugin that is designed to work with binutils
gold linker. At present time, this is not the default linker in
binutils, and the default build of gold does not support plugins.

Obtaining binutils:

  cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src login
  {enter "anoncvs" as the password}
  cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src co binutils

This will create a src/ directory. Make a build/ directory and from
there configure binutils with "../src/configure --enable-gold --enable-plugins".
Then build binutils with "make all-gold".

To build the LLVMgold plugin, configure LLVM with the option
--with-binutils-include=/path/to/binutils/src/include/ --enable-pic. To use the
plugin, run "ld-new --plugin /path/to/libLLVMgold.so".
Without PIC libLTO and libLLVMgold are not being built (because they would fail
link on x86-64 with a relocation error: PIC and non-PIC can't be combined).
As an alternative to passing --enable-pic, you can use 'make ENABLE_PIC=1' in
your entire LLVM build.