llvm-project/lld
Nico Weber 2c1903412b [lld/mac] Implement removal of unused dylibs
This omits load commands for unreferenced dylibs if:
- the dylib was loaded implicitly,
- it is marked MH_DEAD_STRIPPABLE_DYLIB
- or -dead_strip_dylibs is passed

This matches ld64.

Currently, the "is dylib referenced" state is computed before dead code
stripping and is not updated after dead code stripping. This too matches ld64.
We should do better here.

With this, clang-format linked with lld (like with ld64) no longer has
libobjc.A.dylib in `otool -L` output. (It was implicitly loaded as a reexport
of CoreFoundation.framework, but it's not needed.)

Differential Revision: https://reviews.llvm.org/D103430
2021-06-01 16:06:30 -04:00
..
COFF [LLD][COFF] Reduce the maximum size of the GHASH table 2021-05-28 09:46:17 -04:00
Common [ELF] Simplify isValidCIdentifier. NFC 2021-03-11 09:38:15 -08:00
ELF [lld:elf] Weaken the requirement for a computed binding to be STB_LOCAL 2021-05-24 23:32:21 -04:00
MachO [lld/mac] Implement removal of unused dylibs 2021-06-01 16:06:30 -04:00
MinGW [LLD] [MinGW] Pass the canExitEarly parameter through properly 2021-05-18 15:09:07 +03:00
cmake/modules [cmake] Add support for multiple distributions 2021-05-12 11:13:18 -07:00
docs [docs] ld.lld.1: Mention -z nostart-stop-gc 2021-05-21 19:57:51 -07:00
include/lld [lld] Add missing header guard (NFC) 2021-04-02 11:12:23 +08:00
lib [NFC] Fix "not used" warning 2021-04-26 22:09:23 -07:00
test [lld/mac] Implement removal of unused dylibs 2021-06-01 16:06:30 -04:00
tools/lld Fix lld macho standalone build by including llvm/Config/llvm-config.h instead of llvm/Config/config.h 2021-05-19 11:15:07 -04:00
unittests Use INTERFACE_COMPILE_OPTIONS to disable -Wsuggest-override for any target that links to gtest 2020-07-27 08:37:01 -07:00
utils
wasm [lld][WebAssembly] Fix for PIC output + TLS + non-shared-memory 2021-05-21 15:16:47 -07:00
.clang-format
.clang-tidy [lld] Add .clang-tidy to customize readability-identifier-naming.{Member,Parameter,Variable}Case => camelBack 2020-03-09 08:26:41 -07:00
.gitignore
CMakeLists.txt Fix lld macho standalone build by including llvm/Config/llvm-config.h instead of llvm/Config/config.h 2021-05-19 11:15:07 -04:00
CODE_OWNERS.TXT Add code owners of new MachO port 2020-09-02 19:32:12 -07:00
LICENSE.TXT
README.md [doc] Place sha256 in lld/README.md into backticks 2021-01-12 10:19:40 -08:00

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.