mirror of
https://github.com/intel/llvm.git
synced 2026-01-28 10:38:23 +08:00
a6db64ef4a
GNU ld allows sections after a non-SHF_ALLOC section to be covered by PT_LOAD (PR37607) and assigns addresses to non-SHF_ALLOC output sections (similar to SHF_ALLOC NOBITS sections. The location counter is not advanced). This patch tries to fix PR37607 (remove a special case in `Writer<ELFT>::createPhdrs`). To make the created PT_LOAD meaningful, we cannot reset dot to 0 for a middle non-SHF_ALLOC output section. This results in removal of two special cases in LinkerScript::assignOffsets. Non-SHF_ALLOC non-orphan sections can have non-zero addresses like in GNU ld. The zero address rule for non-SHF_ALLOC sections is weakened to apply to orphan only. This results in a special case in createSection and findOrphanPos, respectively. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D85100
LLVM Linker (lld)
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
Benchmarking
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.