diff options
Diffstat (limited to 'sys/contrib/dev/acpica/compiler/aslanalyze.c')
-rw-r--r-- | sys/contrib/dev/acpica/compiler/aslanalyze.c | 289 |
1 files changed, 25 insertions, 264 deletions
diff --git a/sys/contrib/dev/acpica/compiler/aslanalyze.c b/sys/contrib/dev/acpica/compiler/aslanalyze.c index 46a6db0..608f6e5 100644 --- a/sys/contrib/dev/acpica/compiler/aslanalyze.c +++ b/sys/contrib/dev/acpica/compiler/aslanalyze.c @@ -143,16 +143,6 @@ AnGetBtype ( ACPI_PARSE_OBJECT *Op); static UINT32 -AnCheckForReservedName ( - ACPI_PARSE_OBJECT *Op, - char *Name); - -static void -AnCheckForReservedMethod ( - ACPI_PARSE_OBJECT *Op, - ASL_METHOD_INFO *MethodInfo); - -static UINT32 AnMapObjTypeToBtype ( ACPI_PARSE_OBJECT *Op); @@ -598,219 +588,6 @@ AnGetBtype ( /******************************************************************************* * - * FUNCTION: AnCheckForReservedName - * - * PARAMETERS: Op - A parse node - * Name - NameSeg to check - * - * RETURN: None - * - * DESCRIPTION: Check a NameSeg against the reserved list. - * - ******************************************************************************/ - -static UINT32 -AnCheckForReservedName ( - ACPI_PARSE_OBJECT *Op, - char *Name) -{ - UINT32 i; - - - if (Name[0] == 0) - { - AcpiOsPrintf ("Found a null name, external = %s\n", - Op->Asl.ExternalName); - } - - /* All reserved names are prefixed with a single underscore */ - - if (Name[0] != '_') - { - return (ACPI_NOT_RESERVED_NAME); - } - - /* Check for a standard reserved method name */ - - for (i = 0; ReservedMethods[i].Name; i++) - { - if (ACPI_COMPARE_NAME (Name, ReservedMethods[i].Name)) - { - if (ReservedMethods[i].Flags & ASL_RSVD_SCOPE) - { - AslError (ASL_ERROR, ASL_MSG_RESERVED_WORD, Op, - Op->Asl.ExternalName); - return (ACPI_PREDEFINED_NAME); - } - else if (ReservedMethods[i].Flags & ASL_RSVD_RESOURCE_NAME) - { - AslError (ASL_ERROR, ASL_MSG_RESERVED_WORD, Op, - Op->Asl.ExternalName); - return (ACPI_PREDEFINED_NAME); - } - - /* Return index into reserved array */ - - return i; - } - } - - /* - * Now check for the "special" reserved names -- - * GPE: _Lxx - * GPE: _Exx - * EC: _Qxx - */ - if ((Name[1] == 'L') || - (Name[1] == 'E') || - (Name[1] == 'Q')) - { - /* The next two characters must be hex digits */ - - if ((isxdigit ((int) Name[2])) && - (isxdigit ((int) Name[3]))) - { - return (ACPI_EVENT_RESERVED_NAME); - } - } - - - /* Check for the names reserved for the compiler itself: _T_x */ - - else if ((Op->Asl.ExternalName[1] == 'T') && - (Op->Asl.ExternalName[2] == '_')) - { - /* Ignore if actually emitted by the compiler */ - - if (Op->Asl.CompileFlags & NODE_COMPILER_EMITTED) - { - return (ACPI_NOT_RESERVED_NAME); - } - - /* - * Was not actually emitted by the compiler. This is a special case, - * however. If the ASL code being compiled was the result of a - * dissasembly, it may possibly contain valid compiler-emitted names - * of the form "_T_x". We don't want to issue an error or even a - * warning and force the user to manually change the names. So, we - * will issue a remark instead. - */ - AslError (ASL_REMARK, ASL_MSG_COMPILER_RESERVED, Op, Op->Asl.ExternalName); - return (ACPI_COMPILER_RESERVED_NAME); - } - - /* - * The name didn't match any of the known reserved names. Flag it as a - * warning, since the entire namespace starting with an underscore is - * reserved by the ACPI spec. - */ - AslError (ASL_WARNING, ASL_MSG_UNKNOWN_RESERVED_NAME, Op, - Op->Asl.ExternalName); - - return (ACPI_NOT_RESERVED_NAME); -} - - -/******************************************************************************* - * - * FUNCTION: AnCheckForReservedMethod - * - * PARAMETERS: Op - A parse node of type "METHOD". - * MethodInfo - Saved info about this method - * - * RETURN: None - * - * DESCRIPTION: If method is a reserved name, check that the number of arguments - * and the return type (returns a value or not) is correct. - * - ******************************************************************************/ - -static void -AnCheckForReservedMethod ( - ACPI_PARSE_OBJECT *Op, - ASL_METHOD_INFO *MethodInfo) -{ - UINT32 Index; - UINT32 RequiredArgsCurrent; - UINT32 RequiredArgsOld; - - - /* Check for a match against the reserved name list */ - - Index = AnCheckForReservedName (Op, Op->Asl.NameSeg); - - switch (Index) - { - case ACPI_NOT_RESERVED_NAME: - case ACPI_PREDEFINED_NAME: - case ACPI_COMPILER_RESERVED_NAME: - - /* Just return, nothing to do */ - break; - - - case ACPI_EVENT_RESERVED_NAME: - - Gbl_ReservedMethods++; - - /* NumArguments must be zero for all _Lxx, _Exx, and _Qxx methods */ - - if (MethodInfo->NumArguments != 0) - { - sprintf (MsgBuffer, "%s requires %d", - Op->Asl.ExternalName, 0); - - AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op, MsgBuffer); - } - break; - - - default: - - Gbl_ReservedMethods++; - - /* - * Matched a reserved method name - * - * Validate the ASL-defined argument count. Allow two different legal - * arg counts. - */ - RequiredArgsCurrent = ReservedMethods[Index].NumArguments & 0x0F; - RequiredArgsOld = ReservedMethods[Index].NumArguments >> 4; - - if ((MethodInfo->NumArguments != RequiredArgsCurrent) && - (MethodInfo->NumArguments != RequiredArgsOld)) - { - sprintf (MsgBuffer, "%s requires %d", - ReservedMethods[Index].Name, - RequiredArgsCurrent); - - if (MethodInfo->NumArguments > RequiredArgsCurrent) - { - AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op, - MsgBuffer); - } - else - { - AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_LO, Op, - MsgBuffer); - } - } - - if (MethodInfo->NumReturnNoValue && - ReservedMethods[Index].Flags & ASL_RSVD_RETURN_VALUE) - { - sprintf (MsgBuffer, "%s", ReservedMethods[Index].Name); - - AslError (ASL_WARNING, ASL_MSG_RESERVED_RETURN_VALUE, Op, MsgBuffer); - } - break; - } -} - - -/******************************************************************************* - * * FUNCTION: AnMapObjTypeToBtype * * PARAMETERS: Op - A parse node @@ -1187,7 +964,7 @@ AnMethodAnalysisWalkBegin ( * The first operand is a name to be created in the namespace. * Check against the reserved list. */ - i = AnCheckForReservedName (Op, Op->Asl.NameSeg); + i = ApCheckForPredefinedName (Op, Op->Asl.NameSeg); if (i < ACPI_VALID_RESERVED_NAME_MAX) { AslError (ASL_ERROR, ASL_MSG_RESERVED_USE, Op, Op->Asl.ExternalName); @@ -1197,51 +974,29 @@ AnMethodAnalysisWalkBegin ( case PARSEOP_NAME: - i = AnCheckForReservedName (Op, Op->Asl.NameSeg); - if (i < ACPI_VALID_RESERVED_NAME_MAX) + /* Typecheck any predefined names statically defined with Name() */ + + ApCheckForPredefinedObject (Op, Op->Asl.NameSeg); + + /* Special typechecking for _HID */ + + if (!ACPI_STRCMP (METHOD_NAME__HID, Op->Asl.NameSeg)) { - if (ReservedMethods[i].NumArguments > 0) + Next = Op->Asl.Child->Asl.Next; + if (Next->Asl.ParseOpcode == PARSEOP_STRING_LITERAL) { /* - * This reserved name must be a control method because - * it must have arguments + * _HID is a string, all characters must be alphanumeric. + * One of the things we want to catch here is the use of + * a leading asterisk in the string. */ - AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op, - "with arguments"); - } - - /* Typechecking for _HID */ - - else if (!ACPI_STRCMP (METHOD_NAME__HID, ReservedMethods[i].Name)) - { - /* Examine the second operand to typecheck it */ - - Next = Op->Asl.Child->Asl.Next; - - if ((Next->Asl.ParseOpcode != PARSEOP_INTEGER) && - (Next->Asl.ParseOpcode != PARSEOP_STRING_LITERAL)) + for (i = 0; Next->Asl.Value.String[i]; i++) { - /* _HID must be a string or an integer */ - - AslError (ASL_ERROR, ASL_MSG_RESERVED_OPERAND_TYPE, Next, - "String or Integer"); - } - - if (Next->Asl.ParseOpcode == PARSEOP_STRING_LITERAL) - { - /* - * _HID is a string, all characters must be alphanumeric. - * One of the things we want to catch here is the use of - * a leading asterisk in the string. - */ - for (i = 0; Next->Asl.Value.String[i]; i++) + if (!isalnum ((int) Next->Asl.Value.String[i])) { - if (!isalnum ((int) Next->Asl.Value.String[i])) - { - AslError (ASL_ERROR, ASL_MSG_ALPHANUMERIC_STRING, - Next, Next->Asl.Value.String); - break; - } + AslError (ASL_ERROR, ASL_MSG_ALPHANUMERIC_STRING, + Next, Next->Asl.Value.String); + break; } } } @@ -1394,7 +1149,7 @@ AnMethodAnalysisWalkEnd ( * Check predefined method names for correct return behavior * and correct number of arguments */ - AnCheckForReservedMethod (Op, MethodInfo); + ApCheckForPredefinedMethod (Op, MethodInfo); ACPI_FREE (MethodInfo); break; @@ -1402,6 +1157,12 @@ AnMethodAnalysisWalkEnd ( case PARSEOP_RETURN: /* + * If the parent is a predefined method name, attempt to typecheck + * the return value. Only static types can be validated. + */ + ApCheckPredefinedReturnValue (Op, MethodInfo); + + /* * The parent block does not "exit" and continue execution -- the * method is terminated here with the Return() statement. */ |