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https://github.com/libretro/Lakka-LibreELEC.git
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29 lines
1.1 KiB
Diff
29 lines
1.1 KiB
Diff
From 61b3b546450ae0a70cb4a57fbb0e0fc47b331370 Mon Sep 17 00:00:00 2001
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From: Portisch <hugo.portisch@yahoo.de>
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Date: Sat, 5 Jun 2021 19:41:25 +0200
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Subject: [PATCH] tls: libwidevinecdm.so: since 4.10.2252.0 has TLS with
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64-byte alignment Change the max_align to 64U instead 16 to make it possible
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to use dlopen again. Tests by changing TLS_TCB_ALIGN directly showed up some
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random crashes. Reverence: https://lkml.org/lkml/2020/7/3/754
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Without this patch, a SEGV is encountered when dlopen(libwidevinecdm.so),
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inside dl-init.c call_init()
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---
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elf/dl-tls.c | 5 +++++
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1 file changed, 5 insertions(+)
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--- a/elf/dl-tls.c
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+++ b/elf/dl-tls.c
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@@ -220,6 +220,11 @@ void
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_dl_determine_tlsoffset (void)
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{
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size_t max_align = TCB_ALIGNMENT;
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+ /* libwidevinecdm.so: since 4.10.2252.0 has TLS with 64-byte alignment.
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+ Since TLS is initialized before audit modules are loaded and slotinfo
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+ information is available, this is not taken into account below in
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+ the audit case. */
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+ max_align = MAX (max_align, 64U);
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size_t freetop = 0;
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size_t freebottom = 0;
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