655d5e7f69
In LoongArch and RISC-V, the relaxation pass iterates over input sections within executable output sections. When a linker script places a synthetic section (e.g., .got) into such an output section, the linker would crash because synthetic sections do not have the relaxAux field initialized. The relaxAux data structure is only allocated for non-synthetic sections in initSymbolAnchors. This patch adds the necessary null checks in the relaxation loops (relaxOnce and finalizeRelax) to skip sections that do not require relaxation. A null check is also added to elf::initSymbolAnchors to ensure the subsequent sorting of anchors is safe. Fixes: #184757 Reviewers: MaskRay Pull Request: https://github.com/llvm/llvm-project/pull/184758
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.