[openwrt/openwrt] mbedtls: import patch to fix illegal instruction on mpc85xx

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/de6c3cca4d2b523937403ae2959597a1e48c7351

commit de6c3cca4d2b523937403ae2959597a1e48c7351
Author: Nick Hainke <vincent at systemli.org>
AuthorDate: Tue Nov 8 12:25:06 2022 +0100

    mbedtls: import patch to fix illegal instruction on mpc85xx
    
    Import patch as workaround for gcc-11.2.0.
    
    Signed-off-by: Nick Hainke <vincent at systemli.org>
---
 ...bn_mul.h-workaround-for-gcc-11.2.0-issues.patch | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/package/libs/mbedtls/patches/101-bn_mul.h-workaround-for-gcc-11.2.0-issues.patch b/package/libs/mbedtls/patches/101-bn_mul.h-workaround-for-gcc-11.2.0-issues.patch
new file mode 100644
index 0000000000..bb2ef9ec43
--- /dev/null
+++ b/package/libs/mbedtls/patches/101-bn_mul.h-workaround-for-gcc-11.2.0-issues.patch
@@ -0,0 +1,30 @@
+From 0b2528145eb5e9207e45e7fc150d574afc1ff628 Mon Sep 17 00:00:00 2001
+From: Nick Hainke <vincent at systemli.org>
+Date: Thu, 24 Nov 2022 15:23:26 +0100
+Subject: [PATCH] bn_mul.h: workaround for gcc-11.2.0 issues
+
+Currently curl fails on mpc85xx with:
+  curl[7227]: illegal instruction (4) at b7c94288 nip b7c94288 lr b7c6b528 code 1 in libmbedcrypto.so.2.28.1[b7c3e000+7e000]
+  curl[7227]: code: 3d7e0000 809e8004 91490000 816b814c 7d6903a6 4e800421 80010024 83c10018
+  curl[7227]: code: 38210020 7c0803a6 4e800020 9421fff0 <7d4d42e6> 7c6c42e6 7d2d42e6 7c0a4840
+
+This is due to a bug in gcc-11.2.0. It is fixed with gcc-11.3.0.
+is planed. Instead, remove the code for mpc85xx that is the cause of the
+issue.
+
+Signed-off-by: Nick Hainke <vincent at systemli.org>
+---
+ include/mbedtls/bn_mul.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/include/mbedtls/bn_mul.h
++++ b/include/mbedtls/bn_mul.h
+@@ -406,7 +406,7 @@
+ 
+ #endif /* __MACH__ && __APPLE__ */
+ 
+-#elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32  */
++#elif (defined(__powerpc__) || defined(__ppc__)) && GCC_VERSION != 110200 /* end PPC64/begin PPC32  */
+ 
+ #if defined(__MACH__) && defined(__APPLE__)
+