forked from OSchip/llvm-project
cd01430ff1
This fixes a bug with string merging with string symbols that contain NULLs, as is the case in the `merge-string.s` test. The bug only showed when we run with `--relocatable` and then try read the resulting object back in. In this case we would end up with string symbols that extend past the end of the segment in which they live. The problem comes from the fact that sections which are flagged as string mergable assume that all strings are NULL terminated. The merging algorithm will drop trailing chars that follow a NULL since they are essentially unreachable. However, the "size" attribute (in the symbol table) of such a truncated symbol is not updated resulting a symbol size that can overlap the end of the segment. I verified that this can happen in ELF too given the right conditions and the its harmless enough. In practice Strings that contain embedded null should not be part of a mergable section. Differential Revision: https://reviews.llvm.org/D102281 |
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| .. | ||
| COFF | ||
| Common | ||
| ELF | ||
| MachO | ||
| MinGW | ||
| cmake/modules | ||
| docs | ||
| include/lld | ||
| lib | ||
| test | ||
| tools/lld | ||
| unittests | ||
| utils | ||
| wasm | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| LICENSE.TXT | ||
| README.md | ||
README.md
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.