0001-Fix-libc6-alignment-error-in-lib-ld-linux.so.3-on-ar.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Bidar?= <bjorn.bidar@jolla.com>
Date: Tue, 31 Aug 2021 00:17:48 +0300
Subject: [PATCH] Fix libc6: alignment error in /lib/ld-linux.so.3 on armel

Source of the patch is:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=548842
https://sourceware.org/legacy-ml/crossgcc/2009-11/msg00008.html
---
 sysdeps/arm/dl-machine.h | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h
index 7a2f9d9b782e321dc26f117ea9719eb2191a1ccf..87f1bccb5615f54803f028316c5390874ec1ceb3 100644
--- a/sysdeps/arm/dl-machine.h
+++ b/sysdeps/arm/dl-machine.h
@@ -626,13 +626,22 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 }
 # endif
 
+union arm_unaligned_data {
+  Elf32_Addr l_addr;
+} __attribute__ ((packed));
+
 auto inline void
 __attribute__ ((always_inline))
 elf_machine_rel_relative (Elf32_Addr l_addr, const Elf32_Rel *reloc,
 			  void *const reloc_addr_arg)
 {
-  Elf32_Addr *const reloc_addr = reloc_addr_arg;
-  *reloc_addr += l_addr;
+  if (((long)reloc_addr_arg) & 0x3) {
+    union arm_unaligned_data *const lpdata = reloc_addr_arg;
+    lpdata->l_addr += l_addr;
+  } else {
+    Elf32_Addr *const reloc_addr = reloc_addr_arg;
+    *reloc_addr += l_addr;
+  }
 }
 
 # ifndef RTLD_BOOTSTRAP