4a8de2832a
GNU ld 2.38 added -z pack-relative-relocs which is similar to --pack-dyn-relocs=relr but synthesizes the `GLIBC_ABI_DT_RELR` version dependency if a shared object named `libc.so.*` has a `GLIBC_2.*` version dependency. This is used to implement the (as some glibc folks call) version lockout mechanism. Add this option, because glibc does not want to support --pack-dyn-relocs=relr which does not add `GLIBC_ABI_DT_RELR`. See https://maskray.me/blog/2021-10-31-relative-relocations-and-relr for detail. Close https://github.com/llvm/llvm-project/issues/53775 Reviewed By: peter.smith Differential Revision: https://reviews.llvm.org/D120701
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===========================
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lld |release| Release Notes
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===========================
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.. contents::
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:local:
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.. only:: PreRelease
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.. warning::
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These are in-progress notes for the upcoming LLVM |release| release.
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Release notes for previous releases can be found on
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`the Download Page <https://releases.llvm.org/download.html>`_.
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Introduction
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============
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This document contains the release notes for the lld linker, release |release|.
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Here we describe the status of lld, including major improvements
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from the previous release. All lld releases may be downloaded
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from the `LLVM releases web site <https://llvm.org/releases/>`_.
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Non-comprehensive list of changes in this release
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=================================================
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ELF Improvements
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----------------
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* ``-z pack-relative-relocs`` is now available to support ``DT_RELR`` for glibc 2.36+.
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(`D120701 <https://reviews.llvm.org/D120701>`_)
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Breaking changes
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----------------
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* The GNU ld incompatible ``--no-define-common`` has been removed.
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* The obscure ``-dc``/``-dp`` options have been removed.
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* ``-d`` is now ignored.
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COFF Improvements
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-----------------
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* Added autodetection of MSVC toolchain, a la clang-cl. Also added /winsysroot
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support for explicit specification of MSVC toolchain location.
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(`D118070 <https://reviews.llvm.org/D118070>`_)
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* ...
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MinGW Improvements
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------------------
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* ...
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MachO Improvements
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------------------
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* Item 1.
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WebAssembly Improvements
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------------------------
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