forked from OSchip/llvm-project
22e6648a18
Tools like `install_name_tool` and `codesign` may modify the Mach-O header and increase its size. The linker has to provide padding to make this possible. This diff does that, plus sets its default value to 32 bytes (which is what ld64 does). Unlike ld64, however, we lay out our sections *exactly* `-headerpad` bytes from the header, whereas ld64 just treats the padding requirement as a lower bound. ld64 actually starts laying out the non-header sections in the __TEXT segment from the end of the (page-aligned) segment rather than the front, so its binaries typically have more than `-headerpad` bytes of actual padding. We should consider implementing the same alignment behavior. Reviewed By: #lld-macho, compnerd Differential Revision: https://reviews.llvm.org/D84714 |
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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.