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Refresh QtWebEngine patch for 16k page support from official Chromium commit

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This refreshes the commit with the upstream Chromium commit data and
the upstream Qt references required for upstreaming the change.
This commit is contained in:
Neal Gompa 2022-11-20 14:02:29 -05:00
parent 63fa67df29
commit e54439c5b2
1 changed files with 32 additions and 5 deletions
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37
qtwebengine-5.15-Backport-of-16k-page-support-on-aarch64.patch
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@ -1,8 +1,35 @@
From 0908105c5a7fb5d3f0b644b37811f82934cccf60 Mon Sep 17 00:00:00 2001
From: Yichao Yu <yyc1992@gmail.com>
Date: Tue, 19 Jul 2022 23:58:46 -0400
Subject: [PATCH] Backport of 16k page support on aarch64
From 0e827b4f741e57538c24d90b63659dbdb0992cb0 Mon Sep 17 00:00:00 2001
From: Jorrit Jongma <jorrit@jongma.org>
Date: Tue, 12 Apr 2022 17:09:34 +0000
Subject: [PATCH] [Backport] [PA] Support 16kb pagesize on Linux+ARM64
This makes the system pagesize a run-time property.
ARM64 supports 4kb, 16kb, and 64kb page sizes. Previously, only 4kb
was supported by Chromium. This patch adds 16kb support, as is used
for example by Asahi Linux on M1 Macs. The rare 64kb case is still
not supported due to further changes needed to SlotSpanMetadata.
The implementation follows the changes made to support run-time page
size on macOS. On macOS, the required constants are conveniently
injected before any code runs, while on Linux a function call is
needed, complicating initialization.
The new PageCharacteristics structure holds the page size and shift
as std::atomic<int> which are initialized on first use.
Bug: 1301788
Change-Id: I8ceead40de53ba7a2ec248bd6ef46f2a521dd29c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3545665
Reviewed-by: Benoit Lize <lizeb@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#991588}
(adapted from commit a704c3a94179e6f3abb28f090d096ced72657d7c)
Bug-Fedora: 2144200
Task-number: QTBUG-108674
---
.../address_space_randomization.h | 15 ++++++
.../page_allocator_constants.h | 51 +++++++++++++++++-
@ -341,5 +368,5 @@ index 71d63ba4146..a6d83626741 100644
#else
PAGE_ALLOCATOR_CONSTANTS_DECLARE_CONSTEXPR ALWAYS_INLINE int
--
2.37.0
2.38.1