llvm-project/lld
Greg McGary c3e4f3b231 [lld-macho] Fix alignment & layout to match ld64 and satisfy kernel & codesign
The Mach kernel & codesign on arm64 macOS has strict requirements for alignment and sequence of segments and sections. Dyld probably is just as picky, though kernel & codesign reject malformed Mach-O files before dyld ever has a chance.

I developed this diff by incrementally changing alignments & sequences to match the output of ld64. I stopped when my hello-world test program started working: `codesign --verify` succeded, and `execve(2)` didn't immediately fail with `errno == EBADMACHO` = `"Malformed Mach-O file"`.

Differential Revision: https://reviews.llvm.org/D94935
2021-02-05 17:22:03 -07:00
..
COFF Revert "[PDB] Defer relocating .debug$S until commit time and parallelize it" 2021-01-28 13:17:27 -08:00
Common [lld/mac] Add --reproduce option 2020-11-30 08:40:21 -05:00
ELF [ELF] Improve --icf=safe diagnostic 2021-02-05 09:37:37 -08:00
MachO [lld-macho] Fix alignment & layout to match ld64 and satisfy kernel & codesign 2021-02-05 17:22:03 -07:00
MinGW [LLD] [MinGW] Pass the --demangle and --no-demangle options to the COFF linker 2021-01-07 10:02:19 +02:00
cmake/modules lld: Let find_package(LLD) work 2020-05-14 09:59:53 -04:00
docs Bump the trunk major version to 13 2021-01-26 19:37:55 -08:00
include/lld [lld][WebAssembly] Add support for handling table symbols 2021-01-14 11:13:13 +01:00
lib [MachO] Fix enum-int mismatch warning 2020-12-28 17:39:41 +01:00
test [lld-macho] Fix alignment & layout to match ld64 and satisfy kernel & codesign 2021-02-05 17:22:03 -07:00
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 [WebAssembly] fixed wasm64 data segment init exp not 64-bit 2021-02-01 11:32:50 -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 Revert "[CMake] Actually require python 3.6 or greater" 2021-01-29 12:03:32 -08:00
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.