0f24ffcdfa
libunwind uses unwind info to find the function address belonging to the current instruction pointer. libunwind/src/CompactUnwinder.hpp's step functions read functionStart for UNWIND_X86_64_MODE_STACK_IND (and for nothing else), so these encodings need a dedicated entry per function, so that the runtime can get the stacksize off the `subq` instrunction in the function's prologue. This matches ld64. (CompactUnwinder.hpp from https://opensource.apple.com/source/libunwind/ also reads functionStart in a few more cases if `SUPPORT_OLD_BINARIES` is set, but it defaults to 0, and ld64 seems to not worry about these additional cases.) Related upstream bug: https://crbug.com/1220175 Differential Revision: https://reviews.llvm.org/D104978 |
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| .. | ||
| cmake/modules | ||
| COFF | ||
| Common | ||
| docs | ||
| ELF | ||
| include/lld | ||
| lib | ||
| MachO | ||
| MinGW | ||
| test | ||
| tools/lld | ||
| unittests | ||
| utils | ||
| wasm | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| LICENSE.TXT | ||
| 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.