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llvm-mirror/tools/gold
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Nick Lewycky 2e90dfefff Force 'llvm-config' to go first, optionally followed by lto and gold mixed in 
with the rest of the parallel directories.

Build lto when possible on all platforms. Make gold to explicitly depend on
libLTO.

llvm-svn: 65518
2009-02-26 07:56:49 +00:00
..
gold-plugin.cpp Add an option to the gold plugin to make it emit a file with the public api 2009-02-22 22:15:44 +00:00
Makefile Force 'llvm-config' to go first, optionally followed by lto and gold mixed in 2009-02-26 07:56:49 +00:00
README.txt mention that PIC is needed for libLTO and libLLVMgold 2009-02-04 19:12:25 +00:00

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.