1 /******************************************************************************
3 * Module Name: aslfileio - File I/O support
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2015, Intel Corp.
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12 * modification, are permitted provided that the following conditions
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20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
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44 #include "aslcompiler.h"
47 #define _COMPONENT ACPI_COMPILER
48 ACPI_MODULE_NAME ("aslfileio")
51 /*******************************************************************************
53 * FUNCTION: FlFileError
55 * PARAMETERS: FileId - Index into file info array
56 * ErrorId - Index into error message array
60 * DESCRIPTION: Decode errno to an error message and add the entire error
63 ******************************************************************************/
71 sprintf (MsgBuffer, "\"%s\" (%s) - %s", Gbl_Files[FileId].Filename,
72 Gbl_Files[FileId].Description, strerror (errno));
73 AslCommonError (ASL_ERROR, ErrorId, 0, 0, 0, 0, NULL, MsgBuffer);
77 /*******************************************************************************
79 * FUNCTION: FlOpenFile
81 * PARAMETERS: FileId - Index into file info array
82 * Filename - file pathname to open
83 * Mode - Open mode for fopen
87 * DESCRIPTION: Open a file.
88 * NOTE: Aborts compiler on any error.
90 ******************************************************************************/
101 Gbl_Files[FileId].Filename = Filename;
102 Gbl_Files[FileId].Handle = NULL;
104 File = fopen (Filename, Mode);
107 FlFileError (FileId, ASL_MSG_OPEN);
111 Gbl_Files[FileId].Handle = File;
115 /*******************************************************************************
117 * FUNCTION: FlGetFileSize
119 * PARAMETERS: FileId - Index into file info array
123 * DESCRIPTION: Get current file size. Uses common seek-to-EOF function.
124 * File must be open. Aborts compiler on error.
126 ******************************************************************************/
135 FileSize = CmGetFileSize (Gbl_Files[FileId].Handle);
136 if (FileSize == ACPI_UINT32_MAX)
145 /*******************************************************************************
147 * FUNCTION: FlReadFile
149 * PARAMETERS: FileId - Index into file info array
150 * Buffer - Where to place the data
151 * Length - Amount to read
153 * RETURN: Status. AE_ERROR indicates EOF.
155 * DESCRIPTION: Read data from an open file.
156 * NOTE: Aborts compiler on any error.
158 ******************************************************************************/
169 /* Read and check for error */
171 Actual = fread (Buffer, 1, Length, Gbl_Files[FileId].Handle);
174 if (feof (Gbl_Files[FileId].Handle))
176 /* End-of-file, just return error */
181 FlFileError (FileId, ASL_MSG_READ);
189 /*******************************************************************************
191 * FUNCTION: FlWriteFile
193 * PARAMETERS: FileId - Index into file info array
194 * Buffer - Data to write
195 * Length - Amount of data to write
199 * DESCRIPTION: Write data to an open file.
200 * NOTE: Aborts compiler on any error.
202 ******************************************************************************/
213 /* Write and check for error */
215 Actual = fwrite ((char *) Buffer, 1, Length, Gbl_Files[FileId].Handle);
216 if (Actual != Length)
218 FlFileError (FileId, ASL_MSG_WRITE);
222 if ((FileId == ASL_FILE_PREPROCESSOR) && Gbl_PreprocessorOutputFlag)
224 /* Duplicate the output to the user preprocessor (.i) file */
226 Actual = fwrite ((char *) Buffer, 1, Length,
227 Gbl_Files[ASL_FILE_PREPROCESSOR_USER].Handle);
228 if (Actual != Length)
230 FlFileError (FileId, ASL_MSG_WRITE);
237 /*******************************************************************************
239 * FUNCTION: FlPrintFile
241 * PARAMETERS: FileId - Index into file info array
242 * Format - Printf format string
243 * ... - Printf arguments
247 * DESCRIPTION: Formatted write to an open file.
248 * NOTE: Aborts compiler on any error.
250 ******************************************************************************/
262 va_start (Args, Format);
263 Actual = vfprintf (Gbl_Files[FileId].Handle, Format, Args);
268 FlFileError (FileId, ASL_MSG_WRITE);
272 if ((FileId == ASL_FILE_PREPROCESSOR) && Gbl_PreprocessorOutputFlag)
275 * Duplicate the output to the user preprocessor (.i) file,
276 * except: no #line directives.
278 if (!strncmp (Format, "#line", 5))
283 va_start (Args, Format);
284 Actual = vfprintf (Gbl_Files[ASL_FILE_PREPROCESSOR_USER].Handle,
290 FlFileError (FileId, ASL_MSG_WRITE);
298 /*******************************************************************************
300 * FUNCTION: FlSeekFile
302 * PARAMETERS: FileId - Index into file info array
303 * Offset - Absolute byte offset in file
307 * DESCRIPTION: Seek to absolute offset.
308 * NOTE: Aborts compiler on any error.
310 ******************************************************************************/
320 Error = fseek (Gbl_Files[FileId].Handle, Offset, SEEK_SET);
323 FlFileError (FileId, ASL_MSG_SEEK);
329 /*******************************************************************************
331 * FUNCTION: FlCloseFile
333 * PARAMETERS: FileId - Index into file info array
337 * DESCRIPTION: Close an open file. Aborts compiler on error
339 ******************************************************************************/
348 if (!Gbl_Files[FileId].Handle)
353 Error = fclose (Gbl_Files[FileId].Handle);
356 FlFileError (FileId, ASL_MSG_CLOSE);
360 /* Do not clear/free the filename string */
362 Gbl_Files[FileId].Handle = NULL;
367 /*******************************************************************************
369 * FUNCTION: FlDeleteFile
371 * PARAMETERS: FileId - Index into file info array
375 * DESCRIPTION: Delete a file.
377 ******************************************************************************/
383 ASL_FILE_INFO *Info = &Gbl_Files[FileId];
391 if (remove (Info->Filename))
393 printf ("%s (%s file) ",
394 Info->Filename, Info->Description);
395 perror ("Could not delete");
398 Info->Filename = NULL;