llvm-project/lld
Nico Weber 83e60f5a55 [lld/mac] Add --reproduce option
This adds support for ld.lld's --reproduce / lld-link's /reproduce:
flag to the MachO port. This flag can be added to a link command
to make the link write a tar file containing all inputs to the link
and a response file containing the link command. This can be used
to reproduce the link on another machine, which is useful for sharing
bug report inputs or performance test loads.

Since the linker is usually called through the clang driver and
adding linker flags can be a bit cumbersome, setting the env var
`LLD_REPRODUCE=foo.tar` triggers the feature as well.

The file response.txt in the archive can be used with
`ld64.lld.darwinnew $(cat response.txt)` as long as the contents are
smaller than the command-line limit, or with `ld64.lld.darwinnew
@response.txt` once D92149 is in.

The support in this patch is sufficient to create a tar file for
Chromium's base_unittests that can link after unpacking on a different
machine.

Differential Revision: https://reviews.llvm.org/D92274
2020-11-30 08:40:21 -05:00
..
COFF lld-link: Let LLD_REPRODUCE control /reproduce:, like in ld.lld 2020-11-27 13:33:55 -05:00
Common [lld/mac] Add --reproduce option 2020-11-30 08:40:21 -05:00
ELF [lld/mac] Add --reproduce option 2020-11-30 08:40:21 -05:00
MachO [lld/mac] Add --reproduce option 2020-11-30 08:40:21 -05:00
MinGW Reapply [LLD] [COFF] Implement a GNU/ELF like -wrap option 2020-10-15 22:14:02 +03:00
cmake/modules lld: Let find_package(LLD) work 2020-05-14 09:59:53 -04:00
docs [lld][WebAssembly] Implement --unresolved-symbols 2020-11-17 16:27:06 -08:00
include/lld [LLD][COFF] When using LLD-as-a-library, always prevent re-entrance on failures 2020-11-12 08:14:43 -05:00
lib Reland "[yaml2obj][ELF] - Simplify the code that performs sections validation." 2020-10-20 16:25:33 +03:00
test [lld/mac] Add --reproduce option 2020-11-30 08:40:21 -05:00
tools/lld lld: Fix darwinnew symlink name added in e16c0a9a68 2020-11-24 11:06:51 -05:00
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] Ensure stub symbols always get address 0 2020-11-25 18:26:34 -08:00
.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 Remove .svn from exclude list as we moved to git 2020-10-21 16:09:21 +02:00
CODE_OWNERS.TXT Add code owners of new MachO port 2020-09-02 19:32:12 -07:00
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.