751f18e7d4
GNU ld from binutils 2.35 onwards will likely support --export-dynamic-symbol but with different semantics. https://sourceware.org/pipermail/binutils/2020-May/111302.html Differences: 1. -export-dynamic-symbol is not supported 2. --export-dynamic-symbol takes a glob argument 3. --export-dynamic-symbol can suppress binding the references to the definition within the shared object if (-Bsymbolic or -Bsymbolic-functions) 4. --export-dynamic-symbol does not imply -u I don't think the first three points can affect any user. For the fourth point, Not implying -u can lead to some archive members unfetched. Add -u foo to restore the previous behavior. Exact semantics: * -no-pie or -pie: matched non-local defined symbols will be added to the dynamic symbol table. * -shared: matched non-local STV_DEFAULT symbols will not be bound to definitions within the shared object even if they would otherwise be due to -Bsymbolic, -Bsymbolic-functions, or --dynamic-list. Reviewed By: psmith Differential Revision: https://reviews.llvm.org/D80487
58 lines
1.4 KiB
ReStructuredText
58 lines
1.4 KiB
ReStructuredText
========================
|
|
lld 11.0.0 Release Notes
|
|
========================
|
|
|
|
.. contents::
|
|
:local:
|
|
|
|
.. warning::
|
|
These are in-progress notes for the upcoming LLVM 11.0.0 release.
|
|
Release notes for previous releases can be found on
|
|
`the Download Page <https://releases.llvm.org/download.html>`_.
|
|
|
|
Introduction
|
|
============
|
|
|
|
This document contains the release notes for the lld linker, release 11.0.0.
|
|
Here we describe the status of lld, including major improvements
|
|
from the previous release. All lld releases may be downloaded
|
|
from the `LLVM releases web site <https://llvm.org/releases/>`_.
|
|
|
|
Non-comprehensive list of changes in this release
|
|
=================================================
|
|
|
|
ELF Improvements
|
|
----------------
|
|
|
|
* New ``--time-trace`` option records a time trace file that can be viewed in
|
|
chrome://tracing. The file can be specified with ``--time-trace-file``.
|
|
Trace granularity can be specified with ``--time-trace-granularity``.
|
|
(`D71060 <https://reviews.llvm.org/D71060>`_)
|
|
* ...
|
|
|
|
Breaking changes
|
|
----------------
|
|
|
|
* One-dash form of some long option (``--thinlto-*``, ``--lto-*``, ``--shuffle-sections=``)
|
|
are no longer supported.
|
|
* ``--export-dynamic-symbol`` no longer implies ``-u``.
|
|
|
|
COFF Improvements
|
|
-----------------
|
|
|
|
* ...
|
|
|
|
MinGW Improvements
|
|
------------------
|
|
|
|
* ...
|
|
|
|
MachO Improvements
|
|
------------------
|
|
|
|
* Item 1.
|
|
|
|
WebAssembly Improvements
|
|
------------------------
|
|
|