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Summary: r336838 allowed these to be toggleable. r336858 reverted r336838. r336943 made the generation of these sections conditional on LDPO_REL. This commit brings back the toggle-ability. You can specify: -plugin-opt=-function-sections -plugin-opt=-data-sections For your linker flags to disable the changes made in r336943. Without toggling r336943 off, arm64 linux kernels linked with gold-plugin see significant boot time regressions, but with r336943 outright reverted x86_64 linux kernels linked with gold-plugin fail to boot. Reviewers: pcc, void Reviewed By: pcc Subscribers: javed.absar, kristof.beyls, llvm-commits, srhines Differential Revision: https://reviews.llvm.org/D55291 llvm-svn: 348389 |
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| .. | ||
| CMakeLists.txt | ||
| gold-plugin.cpp | ||
| gold.exports | ||
| README.txt | ||
The LLVM Gold LTO Plugin ======================== 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. See docs/GoldPlugin.html for complete build and usage instructions. NOTE: libLTO and LLVMgold aren't built without PIC because they would fail to 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.