45 lines
2.2 KiB
Diff
45 lines
2.2 KiB
Diff
From: Daniel Micay <danielmicay@gmail.com>
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Date: Thu, 26 Jan 2017 01:30:12 -0500
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Subject: Use 64-bit WebView processes
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64-bit processes introduce 10% or so higher memory consumption.
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The reason for preferring 64-bit processes is providing substantially better
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exploit mitigations at the expense of slightly more memory usage.
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In addition to the standard mitigations, it also enables usage of
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https://github.com/AndroidHardening/hardened_malloc (where available).
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It will provide high entropy ASLR (24-bit to 32-bit depending on whether the
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kernel uses 3 or 4 level page tables rather than 16-bit for 32-bit processes),
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high entropy stack canaries (56/64-bit instead of 24/32-bit depending on
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whether a zero byte is used) and also features like pointer authentication and
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memory tagging when those are made available in the future.
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The reason why upstream started preferring 32-bit processes is to save memory,
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particularly since saving memory makes it feasible to use finer-grained
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sandboxing.
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Original License: MIT - https://spdx.org/licenses/MIT.html
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License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
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---
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android_webview/nonembedded/java/AndroidManifest.xml | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/android_webview/nonembedded/java/AndroidManifest.xml b/android_webview/nonembedded/java/AndroidManifest.xml
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--- a/android_webview/nonembedded/java/AndroidManifest.xml
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+++ b/android_webview/nonembedded/java/AndroidManifest.xml
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@@ -43,11 +43,9 @@ by a child template that "extends" this file.
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android:name="{{ application_name|default('org.chromium.android_webview.nonembedded.WebViewApkApplication') }}"
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android:multiArch="true"
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{% if force_32_bit is defined and force_32_bit == 'true' %}
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- android:use32bitAbi="true"
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{% endif %}
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{# TODO(crbug.com/1411557): Remove #}
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{% if force_32_bit is not defined %}
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- {{ use32bitAbi|default('android:use32bitAbi="true"') }}
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{% endif %}
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android:extractNativeLibs="false">
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{# This part is shared between stand-alone WebView and Monochrome #}
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--
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2.25.1
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