llvm-mirror

mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 04:02:41 +01:00

History

Rafael Espindola d7bfa3a0f7 Add a pass-through option to the plugin. The use case for this option is to ask the linker to take another look into some library or object. The case when one might want to do this is when codegen introduces a new undefined reference. The canonical example is libgcc. llvm-svn: 106303		2010-06-18 19:18:58 +00:00
..
gold-plugin.cpp	Add a pass-through option to the plugin. The use case for this option is to	2010-06-18 19:18:58 +00:00
gold.exports
Makefile	Avoid renaming loadable modules at install time. Now the gold plugin is named	2010-05-16 03:13:23 +00:00
README.txt

README.txt

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.