acpica-tools/unaligned.patch

Patch carried over from the prior iasl package and updated.  This allows
for builds on systems requiring aligned memory access. Please see
http://lists.acpica.org/pipermail/devel/2010-July/000159.html.  Resolves
BZ#865013 and BZ#856856.
--

Add more platforms to the list of the ones requiring aligned memory access.
Also fix callsites where wrong assumptions where made in terms of aligment.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 source/components/executer/exoparg2.c |   12 +++++++++---
 source/include/actypes.h              |   26 +++++++++++++-------------
 3 files changed, 32 insertions(+), 21 deletions(-)

Index: acpica-unix2-20200925/source/components/executer/exoparg2.c
===================================================================
--- acpica-unix2-20200925.orig/source/components/executer/exoparg2.c
+++ acpica-unix2-20200925/source/components/executer/exoparg2.c
@@ -172,6 +172,8 @@ AcpiExOpcode_2A_2T_1R (
     ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
     ACPI_OPERAND_OBJECT     *ReturnDesc1 = NULL;
     ACPI_OPERAND_OBJECT     *ReturnDesc2 = NULL;
+    UINT64                  ReturnValue1 = 0;
+    UINT64                  ReturnValue2 = 0;
     ACPI_STATUS             Status;
 
 
@@ -206,8 +208,10 @@ AcpiExOpcode_2A_2T_1R (
         Status = AcpiUtDivide (
             Operand[0]->Integer.Value,
             Operand[1]->Integer.Value,
-            &ReturnDesc1->Integer.Value,
-            &ReturnDesc2->Integer.Value);
+            &ReturnValue1, &ReturnValue2);
+        ReturnDesc1->Integer.Value = ReturnValue1;
+        ReturnDesc2->Integer.Value = ReturnValue2;
+
         if (ACPI_FAILURE (Status))
         {
             goto Cleanup;
@@ -282,6 +286,7 @@ AcpiExOpcode_2A_1T_1R (
     ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
     ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
     UINT64                  Index;
+    UINT64                  ReturnValue = 0;
     ACPI_STATUS             Status = AE_OK;
     ACPI_SIZE               Length = 0;
 
@@ -327,7 +332,8 @@ AcpiExOpcode_2A_1T_1R (
             Operand[0]->Integer.Value,
             Operand[1]->Integer.Value,
             NULL,
-            &ReturnDesc->Integer.Value);
+            &ReturnValue);
+        ReturnDesc->Integer.Value = ReturnValue;
         break;
 
     case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */
Index: acpica-unix2-20200925/source/include/actypes.h
===================================================================
--- acpica-unix2-20200925.orig/source/include/actypes.h
+++ acpica-unix2-20200925/source/include/actypes.h
@@ -143,6 +143,19 @@ typedef COMPILER_DEPENDENT_INT64
  */
 #define ACPI_THREAD_ID                  UINT64
 
+/*
+ * In the case of the Itanium Processor Family (IPF), the hardware does not
+ * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED flag
+ * to indicate that special precautions must be taken to avoid alignment faults.
+ * (IA64 or ia64 is currently used by existing compilers to indicate IPF.)
+ *
+ * Note: EM64T and other X86-64 processors support misaligned transfers,
+ * so there is no need to define this flag.
+ */
+#if defined (__IA64__) || defined (__ia64__) || defined(__alpha__) || defined(__sparc__) || defined(__hppa__) || defined(__arm__)
+#define ACPI_MISALIGNMENT_NOT_SUPPORTED
+#endif
+
 
 /*******************************************************************************
  *
@@ -170,20 +183,6 @@ typedef UINT64
 #define ACPI_USE_NATIVE_DIVIDE          /* Has native 64-bit integer support */
 #define ACPI_USE_NATIVE_MATH64          /* Has native 64-bit integer support */
 
-/*
- * In the case of the Itanium Processor Family (IPF), the hardware does not
- * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED
- * flag to indicate that special precautions must be taken to avoid alignment
- * faults. (IA64 or ia64 is currently used by existing compilers to indicate
- * IPF.)
- *
- * Note: EM64T and other X86-64 processors support misaligned transfers,
- * so there is no need to define this flag.
- */
-#if defined (__IA64__) || defined (__ia64__)
-#define ACPI_MISALIGNMENT_NOT_SUPPORTED
-#endif
-
 
 /*******************************************************************************
  *