debian-unaligned.patch

   1 Patch carried over from the prior iasl package and updated.  This allows
   2
   3 From: Al Stone <ahs3@redhat.com>
   4
   5 for builds on systems requiring aligned memory access. Please see
   6 http://lists.acpica.org/pipermail/devel/2010-July/000159.html.  Resolves
   7 BZ#865013 and BZ#856856.
   8 --
   9
  10 Add more platforms to the list of the ones requiring aligned memory access.
  11 Also fix callsites where wrong assumptions where made in terms of aligment.
  12
  13 Signed-off-by: Mattia Dongili <malattia@linux.it>
  14 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
  15 ---
  16  source/compiler/asltree.c             |   15 ++++++++++-----
  17  source/components/executer/exoparg2.c |   12 +++++++++---
  18  source/include/actypes.h              |   26 +++++++++++++-------------
  19  3 files changed, 32 insertions(+), 21 deletions(-)
  20
  21 Index: acpica-unix2-20170224/source/compiler/asltree.c
  22 ===================================================================
  23 --- acpica-unix2-20170224.orig/source/compiler/asltree.c
  24 +++ acpica-unix2-20170224/source/compiler/asltree.c
  25 @@ -998,28 +998,31 @@ TrCreateValuedLeafNode (
  26          "Op %s  Value %8.8X%8.8X  ",
  27          Op->Asl.LineNumber, Op->Asl.Column, Op, UtGetOpName(ParseOpcode),
  28          ACPI_FORMAT_UINT64 (Value));
  29 -    Op->Asl.Value.Integer = Value;
  30
  31      switch (ParseOpcode)
  32      {
  33      case PARSEOP_STRING_LITERAL:
  34
  35 -        DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Value);
  36 +        Op->Asl.Value.String = (ACPI_STRING) (ACPI_SIZE) Value;
  37 +        DbgPrint (ASL_PARSE_OUTPUT, "STRING->%s", Op->Asl.Value.String);
  38          break;
  39
  40      case PARSEOP_NAMESEG:
  41
  42 -        DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Value);
  43 +        Op->Asl.Value.String = (ACPI_STRING) (ACPI_SIZE) Value;
  44 +        DbgPrint (ASL_PARSE_OUTPUT, "NAMESEG->%s", Op->Asl.Value.String);
  45          break;
  46
  47      case PARSEOP_NAMESTRING:
  48
  49 -        DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Value);
  50 +        Op->Asl.Value.String = (ACPI_STRING) (ACPI_SIZE) Value;
  51 +        DbgPrint (ASL_PARSE_OUTPUT, "NAMESTRING->%s", Op->Asl.Value.String);
  52          break;
  53
  54      case PARSEOP_EISAID:
  55
  56 -        DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Value);
  57 +        Op->Asl.Value.String = (ACPI_STRING) (ACPI_SIZE) Value;
  58 +        DbgPrint (ASL_PARSE_OUTPUT, "EISAID->%s", Op->Asl.Value.String);
  59          break;
  60
  61      case PARSEOP_METHOD:
  62 @@ -1029,12 +1032,14 @@ TrCreateValuedLeafNode (
  63
  64      case PARSEOP_INTEGER:
  65
  66 +        Op->Asl.Value.Integer = Value;
  67          DbgPrint (ASL_PARSE_OUTPUT, "INTEGER->%8.8X%8.8X",
  68              ACPI_FORMAT_UINT64 (Value));
  69          break;
  70
  71      default:
  72
  73 +        Op->Asl.Value.Integer = Value;
  74          break;
  75      }
  76
  77 Index: acpica-unix2-20170224/source/components/executer/exoparg2.c
  78 ===================================================================
  79 --- acpica-unix2-20170224.orig/source/components/executer/exoparg2.c
  80 +++ acpica-unix2-20170224/source/components/executer/exoparg2.c
  81 @@ -172,6 +172,8 @@ AcpiExOpcode_2A_2T_1R (
  82      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
  83      ACPI_OPERAND_OBJECT     *ReturnDesc1 = NULL;
  84      ACPI_OPERAND_OBJECT     *ReturnDesc2 = NULL;
  85 +    UINT64                  ReturnValue1 = 0;
  86 +    UINT64                  ReturnValue2 = 0;
  87      ACPI_STATUS             Status;
  88
  89
  90 @@ -206,8 +208,10 @@ AcpiExOpcode_2A_2T_1R (
  91          Status = AcpiUtDivide (
  92              Operand[0]->Integer.Value,
  93              Operand[1]->Integer.Value,
  94 -            &ReturnDesc1->Integer.Value,
  95 -            &ReturnDesc2->Integer.Value);
  96 +            &ReturnValue1, &ReturnValue2);
  97 +        ReturnDesc1->Integer.Value = ReturnValue1;
  98 +        ReturnDesc2->Integer.Value = ReturnValue2;
  99 +
 100          if (ACPI_FAILURE (Status))
 101          {
 102              goto Cleanup;
 103 @@ -282,6 +286,7 @@ AcpiExOpcode_2A_1T_1R (
 104      ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
 105      ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
 106      UINT64                  Index;
 107 +    UINT64                  ReturnValue = 0;
 108      ACPI_STATUS             Status = AE_OK;
 109      ACPI_SIZE               Length = 0;
 110
 111 @@ -327,7 +332,8 @@ AcpiExOpcode_2A_1T_1R (
 112              Operand[0]->Integer.Value,
 113              Operand[1]->Integer.Value,
 114              NULL,
 115 -            &ReturnDesc->Integer.Value);
 116 +            &ReturnValue);
 117 +        ReturnDesc->Integer.Value = ReturnValue;
 118          break;
 119
 120      case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */
 121 Index: acpica-unix2-20170224/source/include/actypes.h
 122 ===================================================================
 123 --- acpica-unix2-20170224.orig/source/include/actypes.h
 124 +++ acpica-unix2-20170224/source/include/actypes.h
 125 @@ -143,6 +143,19 @@ typedef COMPILER_DEPENDENT_INT64
 126   */
 127  #define ACPI_THREAD_ID                  UINT64
 128
 129 +/*
 130 + * In the case of the Itanium Processor Family (IPF), the hardware does not
 131 + * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED flag
 132 + * to indicate that special precautions must be taken to avoid alignment faults.
 133 + * (IA64 or ia64 is currently used by existing compilers to indicate IPF.)
 134 + *
 135 + * Note: EM64T and other X86-64 processors support misaligned transfers,
 136 + * so there is no need to define this flag.
 137 + */
 138 +#if defined (__IA64__) || defined (__ia64__) || defined(__alpha__) || defined(__sparc__) || defined(__hppa__) || defined(__arm__)
 139 +#define ACPI_MISALIGNMENT_NOT_SUPPORTED
 140 +#endif
 141 +
 142
 143  /*******************************************************************************
 144   *
 145 @@ -169,19 +182,6 @@ typedef UINT64
 146  #define ACPI_SIZE_MAX                   ACPI_UINT64_MAX
 147  #define ACPI_USE_NATIVE_DIVIDE          /* Has native 64-bit integer support */
 148
 149 -/*
 150 - * In the case of the Itanium Processor Family (IPF), the hardware does not
 151 - * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED flag
 152 - * to indicate that special precautions must be taken to avoid alignment faults.
 153 - * (IA64 or ia64 is currently used by existing compilers to indicate IPF.)
 154 - *
 155 - * Note: EM64T and other X86-64 processors support misaligned transfers,
 156 - * so there is no need to define this flag.
 157 - */
 158 -#if defined (__IA64__) || defined (__ia64__)
 159 -#define ACPI_MISALIGNMENT_NOT_SUPPORTED
 160 -#endif
 161 -
 162
 163  /*******************************************************************************
 164   *