commit e4d985a3c1c873f77d20fa0cd421458cc2824996
Author: Andreas Krebbel <krebbel@linux.ibm.com>
Date:   Thu Nov 19 20:32:24 2020 +0100

    IBM Z: Fix endianess problem in pid_memory_read
    
    The cached reads lack the big endian adjustments done in the fallback
    path.
    
    Signed-off-by: Andreas Krebbel <krebbel@linux.ibm.com>

diff --git a/libdwfl/linux-pid-attach.c b/libdwfl/linux-pid-attach.c
index 3a6af997..b23139d9 100644
--- a/libdwfl/linux-pid-attach.c
+++ b/libdwfl/linux-pid-attach.c
@@ -193,14 +193,22 @@ pid_memory_read (Dwfl *dwfl, Dwarf_Addr addr, Dwarf_Word *result, void *arg)
 {
   struct __libdwfl_pid_arg *pid_arg = arg;
   pid_t tid = pid_arg->tid_attached;
+  Dwfl_Process *process = dwfl->process;
   assert (tid > 0);
 
 #ifdef HAVE_PROCESS_VM_READV
   if (read_cached_memory (pid_arg, addr, result))
+    {
+#if SIZEOF_LONG == 8
+# if BYTE_ORDER == BIG_ENDIAN
+      if (ebl_get_elfclass (process->ebl) == ELFCLASS32)
+	*result >>= 32;
+# endif
+#endif
     return true;
+    }
 #endif
 
-  Dwfl_Process *process = dwfl->process;
   if (ebl_get_elfclass (process->ebl) == ELFCLASS64)
     {
 #if SIZEOF_LONG == 8