blob: a4270c4f99078bab6a2904b11e616c14cd4243a5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
.. If you want to modify sections/contents permanently, you should modify both
ReleaseNotes.rst and ReleaseNotesTemplate.txt.
===========================
lld |release| Release Notes
===========================
.. contents::
:local:
.. only:: PreRelease
.. warning::
These are in-progress notes for the upcoming LLVM |release| 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 |release|.
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
----------------
* Added ``--bp-compression-sort-section=<glob>[=<layout_priority>[=<match_priority>]]``,
replacing the old coarse ``--bp-compression-sort`` modes with a way to split
input sections into multiple compression groups, run balanced partitioning
independently per group, and leave out sections that are poor candidates for
BP.
``layout_priority`` controls group placement order (lower value = placed
first, default 0). ``match_priority`` resolves conflicts when multiple globs
match the same section (lower value = higher priority; explicit priority
beats positional last-match-wins; default: positional). In ELF, the glob
matches input section names (e.g. ``.text.unlikely.code1``).
Breaking changes
----------------
COFF Improvements
-----------------
MinGW Improvements
------------------
MachO Improvements
------------------
* ``--bp-compression-sort-section`` now accepts optional layout and match
priorities (same syntax as ELF). In Mach-O, the glob matches the
concatenated segment+section name (e.g. ``__TEXT__text``).
WebAssembly Improvements
------------------------
Fixes
#####
|
