/****************************************************************************** * * Module Name: aslprintf - ASL Printf/Fprintf macro support * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #include "aslcompiler.h" #include "aslcompiler.y.h" #include "amlcode.h" #define _COMPONENT ACPI_COMPILER ACPI_MODULE_NAME ("aslprintf") /* Local prototypes */ static void OpcCreateConcatenateNode ( ACPI_PARSE_OBJECT *Op, ACPI_PARSE_OBJECT *Node); static void OpcParsePrintf ( ACPI_PARSE_OBJECT *Op, ACPI_PARSE_OBJECT *DestOp); /******************************************************************************* * * FUNCTION: OpcDoPrintf * * PARAMETERS: Op - printf parse node * * RETURN: None * * DESCRIPTION: Convert printf macro to a Store(..., Debug) AML operation. * ******************************************************************************/ void OpcDoPrintf ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *DestOp; /* Store destination is the Debug op */ DestOp = TrAllocateOp (PARSEOP_DEBUG); DestOp->Asl.AmlOpcode = AML_DEBUG_OP; DestOp->Asl.Parent = Op; DestOp->Asl.LogicalLineNumber = Op->Asl.LogicalLineNumber; OpcParsePrintf (Op, DestOp); } /******************************************************************************* * * FUNCTION: OpcDoFprintf * * PARAMETERS: Op - fprintf parse node * * RETURN: None * * DESCRIPTION: Convert fprintf macro to a Store AML operation. * ******************************************************************************/ void OpcDoFprintf ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *DestOp; /* Store destination is the first argument of fprintf */ DestOp = Op->Asl.Child; Op->Asl.Child = DestOp->Asl.Next; DestOp->Asl.Next = NULL; OpcParsePrintf (Op, DestOp); } /******************************************************************************* * * FUNCTION: OpcParsePrintf * * PARAMETERS: Op - Printf parse node * DestOp - Destination of Store operation * * RETURN: None * * DESCRIPTION: Convert printf macro to a Store AML operation. The printf * macro parse tree is laid out as follows: * * Op - printf parse op * Op->Child - Format string * Op->Next - Format string arguments * ******************************************************************************/ static void OpcParsePrintf ( ACPI_PARSE_OBJECT *Op, ACPI_PARSE_OBJECT *DestOp) { char *Format; char *StartPosition = NULL; ACPI_PARSE_OBJECT *ArgNode; ACPI_PARSE_OBJECT *NextNode; UINT32 StringLength = 0; char *NewString; BOOLEAN StringToProcess = FALSE; ACPI_PARSE_OBJECT *NewOp; /* Get format string */ Format = ACPI_CAST_PTR (char, Op->Asl.Child->Asl.Value.String); ArgNode = Op->Asl.Child->Asl.Next; /* * Detach argument list so that we can use a NULL check to distinguish * the first concatenation operation we need to make */ Op->Asl.Child = NULL; for (; *Format; ++Format) { if (*Format != '%') { if (!StringToProcess) { /* Mark the beginning of a string */ StartPosition = Format; StringToProcess = TRUE; } ++StringLength; continue; } /* Save string, if any, to new string object and concat it */ if (StringToProcess) { NewString = UtLocalCacheCalloc (StringLength + 1); strncpy (NewString, StartPosition, StringLength); NewOp = TrAllocateOp (PARSEOP_STRING_LITERAL); NewOp->Asl.Value.String = NewString; NewOp->Asl.AmlOpcode = AML_STRING_OP; NewOp->Asl.AcpiBtype = ACPI_BTYPE_STRING; NewOp->Asl.LogicalLineNumber = Op->Asl.LogicalLineNumber; OpcCreateConcatenateNode(Op, NewOp); StringLength = 0; StringToProcess = FALSE; } ++Format; /* * We have a format parameter and will need an argument to go * with it */ if (!ArgNode || ArgNode->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) { AslError(ASL_ERROR, ASL_MSG_ARG_COUNT_LO, Op, NULL); return; } /* * We do not support sub-specifiers of printf (flags, width, * precision, length). For specifiers we only support %x/%X for * hex or %s for strings. Also, %o for generic "acpi object". */ switch (*Format) { case 's': if (ArgNode->Asl.ParseOpcode != PARSEOP_STRING_LITERAL) { AslError(ASL_ERROR, ASL_MSG_INVALID_TYPE, ArgNode, "String required"); return; } NextNode = ArgNode->Asl.Next; ArgNode->Asl.Next = NULL; OpcCreateConcatenateNode(Op, ArgNode); ArgNode = NextNode; continue; case 'X': case 'x': case 'o': NextNode = ArgNode->Asl.Next; ArgNode->Asl.Next = NULL; /* * Append an empty string if the first argument is * not a string. This will implicitly convert the 2nd * concat source to a string per the ACPI specification. */ if (!Op->Asl.Child) { NewOp = TrAllocateOp (PARSEOP_STRING_LITERAL); NewOp->Asl.Value.String = ""; NewOp->Asl.AmlOpcode = AML_STRING_OP; NewOp->Asl.AcpiBtype = ACPI_BTYPE_STRING; NewOp->Asl.LogicalLineNumber = Op->Asl.LogicalLineNumber; OpcCreateConcatenateNode(Op, NewOp); } OpcCreateConcatenateNode(Op, ArgNode); ArgNode = NextNode; break; default: AslError(ASL_ERROR, ASL_MSG_INVALID_OPERAND, Op, "Unrecognized format specifier"); continue; } } /* Process any remaining string */ if (StringToProcess) { NewString = UtLocalCacheCalloc (StringLength + 1); strncpy (NewString, StartPosition, StringLength); NewOp = TrAllocateOp (PARSEOP_STRING_LITERAL); NewOp->Asl.Value.String = NewString; NewOp->Asl.AcpiBtype = ACPI_BTYPE_STRING; NewOp->Asl.AmlOpcode = AML_STRING_OP; NewOp->Asl.LogicalLineNumber = Op->Asl.LogicalLineNumber; OpcCreateConcatenateNode(Op, NewOp); } /* * If we get here and there's no child node then Format * was an empty string. Just make a no op. */ if (!Op->Asl.Child) { Op->Asl.ParseOpcode = PARSEOP_NOOP; AslError(ASL_WARNING, ASL_MSG_NULL_STRING, Op, "Converted to NOOP"); return; } /* Check for erroneous extra arguments */ if (ArgNode && ArgNode->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) { AslError(ASL_WARNING, ASL_MSG_ARG_COUNT_HI, ArgNode, "Extra arguments ignored"); } /* Change Op to a Store */ Op->Asl.ParseOpcode = PARSEOP_STORE; Op->Common.AmlOpcode = AML_STORE_OP; Op->Asl.CompileFlags = 0; /* Disable further optimization */ Op->Asl.CompileFlags &= ~OP_COMPILE_TIME_CONST; UtSetParseOpName (Op); /* Set Store destination */ Op->Asl.Child->Asl.Next = DestOp; } /******************************************************************************* * * FUNCTION: OpcCreateConcatenateNode * * PARAMETERS: Op - Parse node * Node - Parse node to be concatenated * * RETURN: None * * DESCRIPTION: Make Node the child of Op. If child node already exists, then * concat child with Node and makes concat node the child of Op. * ******************************************************************************/ static void OpcCreateConcatenateNode ( ACPI_PARSE_OBJECT *Op, ACPI_PARSE_OBJECT *Node) { ACPI_PARSE_OBJECT *NewConcatOp; if (!Op->Asl.Child) { Op->Asl.Child = Node; Node->Asl.Parent = Op; return; } NewConcatOp = TrAllocateOp (PARSEOP_CONCATENATE); NewConcatOp->Asl.AmlOpcode = AML_CONCATENATE_OP; NewConcatOp->Asl.AcpiBtype = 0x7; NewConcatOp->Asl.LogicalLineNumber = Op->Asl.LogicalLineNumber; /* First arg is child of Op*/ NewConcatOp->Asl.Child = Op->Asl.Child; Op->Asl.Child->Asl.Parent = NewConcatOp; /* Second arg is Node */ NewConcatOp->Asl.Child->Asl.Next = Node; Node->Asl.Parent = NewConcatOp; /* Third arg is Zero (not used) */ NewConcatOp->Asl.Child->Asl.Next->Asl.Next = TrAllocateOp (PARSEOP_ZERO); NewConcatOp->Asl.Child->Asl.Next->Asl.Next->Asl.Parent = NewConcatOp; Op->Asl.Child = NewConcatOp; NewConcatOp->Asl.Parent = Op; }