From 16734feab4204d6930c1ede62e527920607daace Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Wed, 16 Sep 2020 16:27:06 -0600
Subject: [PATCH 04/45] Re-enable support for big-endian machines

First, disable the big-endian check and fail.  Then, make sure the
namespace gets initialized properly (NB: needed even if we are only
compiling/disassembling data tables).

Signed-off-by: Al Stone <ahs3@redhat.com>
---
 source/compiler/aslmain.c             | 12 ------------
 source/components/namespace/nsutils.c |  7 +++++--
 2 files changed, 5 insertions(+), 14 deletions(-)

Index: acpica-unix2-20210604/source/compiler/aslmain.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/aslmain.c
+++ acpica-unix2-20210604/source/compiler/aslmain.c
@@ -101,18 +101,6 @@ main (
 
     signal (SIGINT, AslSignalHandler);
 
-    /*
-     * Big-endian machines are not currently supported. ACPI tables must
-     * be little-endian, and support for big-endian machines needs to
-     * be implemented.
-     */
-    if (UtIsBigEndianMachine ())
-    {
-        fprintf (stderr,
-            "iASL is not currently supported on big-endian machines.\n");
-        return (-1);
-    }
-
     AcpiOsInitialize ();
     ACPI_DEBUG_INITIALIZE (); /* For debug version only */
 
Index: acpica-unix2-20210604/source/components/namespace/nsutils.c
===================================================================
--- acpica-unix2-20210604.orig/source/components/namespace/nsutils.c
+++ acpica-unix2-20210604/source/components/namespace/nsutils.c
@@ -272,6 +272,7 @@ AcpiNsBuildInternalName (
     const char              *ExternalName = Info->NextExternalChar;
     char                    *Result = NULL;
     UINT32                  i;
+    char                    TmpSeg[ACPI_NAMESEG_SIZE+1];
 
 
     ACPI_FUNCTION_TRACE (NsBuildInternalName);
@@ -335,6 +336,7 @@ AcpiNsBuildInternalName (
 
     for (; NumSegments; NumSegments--)
     {
+        memset (TmpSeg, 0, ACPI_NAMESEG_SIZE+1);
         for (i = 0; i < ACPI_NAMESEG_SIZE; i++)
         {
             if (ACPI_IS_PATH_SEPARATOR (*ExternalName) ||
@@ -342,16 +344,17 @@ AcpiNsBuildInternalName (
             {
                 /* Pad the segment with underscore(s) if segment is short */
 
-                Result[i] = '_';
+                TmpSeg[i] = '_';
             }
             else
             {
                 /* Convert the character to uppercase and save it */
 
-                Result[i] = (char) toupper ((int) *ExternalName);
+                TmpSeg[i] = (char) toupper ((int) *ExternalName);
                 ExternalName++;
             }
         }
+    AcpiUtWriteUint (Result, ACPI_NAMESEG_SIZE, TmpSeg, ACPI_NAMESEG_SIZE);
 
         /* Now we must have a path separator, or the pathname is bad */