1 /******************************************************************************
2  *
3  * Module Name: aslmain - compiler main and utilities
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2016, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
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
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #define _DECLARE_GLOBALS
45 
46 #include "aslcompiler.h"
47 #include "acapps.h"
48 #include "acdisasm.h"
49 #include <signal.h>
50 
51 #define _COMPONENT          ACPI_COMPILER
52         ACPI_MODULE_NAME    ("aslmain")
53 
54 /*
55  * Main routine for the iASL compiler.
56  *
57  * Portability note: The compiler depends upon the host for command-line
58  * wildcard support - it is not implemented locally. For example:
59  *
60  * Linux/Unix systems: Shell expands wildcards automatically.
61  *
62  * Windows: The setargv.obj module must be linked in to automatically
63  * expand wildcards.
64  */
65 
66 /* Local prototypes */
67 
68 static void ACPI_SYSTEM_XFACE
69 AslSignalHandler (
70     int                     Sig);
71 
72 static void
73 AslInitialize (
74     void);
75 
76 UINT8
77 AcpiIsBigEndianMachine (
78     void);
79 
80 
81 /*******************************************************************************
82  *
83  * FUNCTION:    AcpiIsBigEndianMachine
84  *
85  * PARAMETERS:  None
86  *
87  * RETURN:      TRUE if machine is big endian
88  *              FALSE if machine is little endian
89  *
90  * DESCRIPTION: Detect whether machine is little endian or big endian.
91  *
92  ******************************************************************************/
93 
94 UINT8
95 AcpiIsBigEndianMachine (
96     void)
97 {
98     union {
99         UINT32              Integer;
100         UINT8               Bytes[4];
101     } Overlay = {0xFF000000};
102 
103     return (Overlay.Bytes[0]); /* Returns 0xFF (TRUE) for big endian */
104 }
105 
106 
107 /*******************************************************************************
108  *
109  * FUNCTION:    Usage
110  *
111  * PARAMETERS:  None
112  *
113  * RETURN:      None
114  *
115  * DESCRIPTION: Display option help message.
116  *              Optional items in square brackets.
117  *
118  ******************************************************************************/
119 
120 void
121 Usage (
122     void)
123 {
124     printf ("%s\n\n", ASL_COMPLIANCE);
125     ACPI_USAGE_HEADER ("iasl [Options] [Files]");
126 
127     printf ("\nGeneral:\n");
128     ACPI_OPTION ("-@ <file>",       "Specify command file");
129     ACPI_OPTION ("-I <dir>",        "Specify additional include directory");
130     ACPI_OPTION ("-T <sig list>|ALL",   "Create ACPI table template/example files");
131     ACPI_OPTION ("-T <count>",      "Emit DSDT and <count> SSDTs to same file");
132     ACPI_OPTION ("-p <prefix>",     "Specify path/filename prefix for all output files");
133     ACPI_OPTION ("-v",              "Display compiler version");
134     ACPI_OPTION ("-vo",             "Enable optimization comments");
135     ACPI_OPTION ("-vs",             "Disable signon");
136 
137     printf ("\nHelp:\n");
138     ACPI_OPTION ("-h",              "This message");
139     ACPI_OPTION ("-hc",             "Display operators allowed in constant expressions");
140     ACPI_OPTION ("-hf",             "Display help for output filename generation");
141     ACPI_OPTION ("-hr",             "Display ACPI reserved method names");
142     ACPI_OPTION ("-ht",             "Display currently supported ACPI table names");
143 
144     printf ("\nPreprocessor:\n");
145     ACPI_OPTION ("-D <symbol>",     "Define symbol for preprocessor use");
146     ACPI_OPTION ("-li",             "Create preprocessed output file (*.i)");
147     ACPI_OPTION ("-P",              "Preprocess only and create preprocessor output file (*.i)");
148     ACPI_OPTION ("-Pn",             "Disable preprocessor");
149 
150     printf ("\nErrors, Warnings, and Remarks:\n");
151     ACPI_OPTION ("-va",             "Disable all errors/warnings/remarks");
152     ACPI_OPTION ("-ve",             "Report only errors (ignore warnings and remarks)");
153     ACPI_OPTION ("-vi",             "Less verbose errors and warnings for use with IDEs");
154     ACPI_OPTION ("-vr",             "Disable remarks");
155     ACPI_OPTION ("-vw <messageid>", "Disable specific warning or remark");
156     ACPI_OPTION ("-w1 -w2 -w3",     "Set warning reporting level");
157     ACPI_OPTION ("-we",             "Report warnings as errors");
158 
159     printf ("\nAML Code Generation (*.aml):\n");
160     ACPI_OPTION ("-oa",             "Disable all optimizations (compatibility mode)");
161     ACPI_OPTION ("-of",             "Disable constant folding");
162     ACPI_OPTION ("-oi",             "Disable integer optimization to Zero/One/Ones");
163     ACPI_OPTION ("-on",             "Disable named reference string optimization");
164     ACPI_OPTION ("-ot",             "Disable typechecking");
165     ACPI_OPTION ("-cr",             "Disable Resource Descriptor error checking");
166     ACPI_OPTION ("-in",             "Ignore NoOp operators");
167     ACPI_OPTION ("-r <revision>",   "Override table header Revision (1-255)");
168 
169     printf ("\nOptional Source Code Output Files:\n");
170     ACPI_OPTION ("-sc -sa",         "Create source file in C or assembler (*.c or *.asm)");
171     ACPI_OPTION ("-ic -ia",         "Create include file in C or assembler (*.h or *.inc)");
172     ACPI_OPTION ("-tc -ta -ts",     "Create hex AML table in C, assembler, or ASL (*.hex)");
173     ACPI_OPTION ("-so",             "Create offset table in C (*.offset.h)");
174 
175     printf ("\nOptional Listing Files:\n");
176     ACPI_OPTION ("-l",              "Create mixed listing file (ASL source and AML) (*.lst)");
177     ACPI_OPTION ("-lm",             "Create hardware summary map file (*.map)");
178     ACPI_OPTION ("-ln",             "Create namespace file (*.nsp)");
179     ACPI_OPTION ("-ls",             "Create combined source file (expanded includes) (*.src)");
180 
181     printf ("\nData Table Compiler:\n");
182     ACPI_OPTION ("-G",              "Compile custom table that contains generic operators");
183     ACPI_OPTION ("-vt",             "Create verbose template files (full disassembly)");
184 
185     printf ("\nAML Disassembler:\n");
186     ACPI_OPTION ("-d  <f1 f2 ...>", "Disassemble or decode binary ACPI tables to file (*.dsl)");
187     ACPI_OPTION ("",                "  (Optional, file type is automatically detected)");
188     ACPI_OPTION ("-da <f1 f2 ...>", "Disassemble multiple tables from single namespace");
189     ACPI_OPTION ("-db",             "Do not translate Buffers to Resource Templates");
190     ACPI_OPTION ("-dc <f1 f2 ...>", "Disassemble AML and immediately compile it");
191     ACPI_OPTION ("",                "  (Obtain DSDT from current system if no input file)");
192     ACPI_OPTION ("-df",             "Force disassembler to assume table contains valid AML");
193     ACPI_OPTION ("-dl",             "Emit legacy ASL code only (no C-style operators)");
194     ACPI_OPTION ("-e  <f1 f2 ...>", "Include ACPI table(s) for external symbol resolution");
195     ACPI_OPTION ("-fe <file>",      "Specify external symbol declaration file");
196     ACPI_OPTION ("-in",             "Ignore NoOp opcodes");
197     ACPI_OPTION ("-l",              "Disassemble to mixed ASL and AML code");
198     ACPI_OPTION ("-vt",             "Dump binary table data in hex format within output file");
199 
200     printf ("\nDebug Options:\n");
201     ACPI_OPTION ("-bf",             "Create debug file (full output) (*.txt)");
202     ACPI_OPTION ("-bs",             "Create debug file (parse tree only) (*.txt)");
203     ACPI_OPTION ("-bp <depth>",     "Prune ASL parse tree");
204     ACPI_OPTION ("-bt <type>",      "Object type to be pruned from the parse tree");
205     ACPI_OPTION ("-f",              "Ignore errors, force creation of AML output file(s)");
206     ACPI_OPTION ("-m <size>",       "Set internal line buffer size (in Kbytes)");
207     ACPI_OPTION ("-n",              "Parse only, no output generation");
208     ACPI_OPTION ("-oc",             "Display compile times and statistics");
209     ACPI_OPTION ("-x <level>",      "Set debug level for trace output");
210     ACPI_OPTION ("-z",              "Do not insert new compiler ID for DataTables");
211 }
212 
213 
214 /*******************************************************************************
215  *
216  * FUNCTION:    FilenameHelp
217  *
218  * PARAMETERS:  None
219  *
220  * RETURN:      None
221  *
222  * DESCRIPTION: Display help message for output filename generation
223  *
224  ******************************************************************************/
225 
226 void
227 AslFilenameHelp (
228     void)
229 {
230 
231     printf ("\nAML output filename generation:\n");
232     printf ("  Output filenames are generated by appending an extension to a common\n");
233     printf ("  filename prefix. The filename prefix is obtained via one of the\n");
234     printf ("  following methods (in priority order):\n");
235     printf ("    1) The -p option specifies the prefix\n");
236     printf ("    2) The prefix of the AMLFileName in the ASL Definition Block\n");
237     printf ("    3) The prefix of the input filename\n");
238     printf ("\n");
239 }
240 
241 
242 /******************************************************************************
243  *
244  * FUNCTION:    AslSignalHandler
245  *
246  * PARAMETERS:  Sig                 - Signal that invoked this handler
247  *
248  * RETURN:      None
249  *
250  * DESCRIPTION: Control-C handler. Delete any intermediate files and any
251  *              output files that may be left in an indeterminate state.
252  *
253  *****************************************************************************/
254 
255 static void ACPI_SYSTEM_XFACE
256 AslSignalHandler (
257     int                     Sig)
258 {
259     UINT32                  i;
260 
261 
262     signal (Sig, SIG_IGN);
263     printf ("Aborting\n\n");
264 
265     /* Close all open files */
266 
267     Gbl_Files[ASL_FILE_PREPROCESSOR].Handle = NULL; /* the .pre file is same as source file */
268 
269     for (i = ASL_FILE_INPUT; i < ASL_MAX_FILE_TYPE; i++)
270     {
271         FlCloseFile (i);
272     }
273 
274     /* Delete any output files */
275 
276     for (i = ASL_FILE_AML_OUTPUT; i < ASL_MAX_FILE_TYPE; i++)
277     {
278         FlDeleteFile (i);
279     }
280 
281     exit (0);
282 }
283 
284 
285 /*******************************************************************************
286  *
287  * FUNCTION:    AslInitialize
288  *
289  * PARAMETERS:  None
290  *
291  * RETURN:      None
292  *
293  * DESCRIPTION: Initialize compiler globals
294  *
295  ******************************************************************************/
296 
297 static void
298 AslInitialize (
299     void)
300 {
301     UINT32                  i;
302 
303 
304     AcpiGbl_DmOpt_Verbose = FALSE;
305 
306     for (i = 0; i < ASL_NUM_FILES; i++)
307     {
308         Gbl_Files[i].Handle = NULL;
309         Gbl_Files[i].Filename = NULL;
310     }
311 
312     Gbl_Files[ASL_FILE_STDOUT].Handle   = stdout;
313     Gbl_Files[ASL_FILE_STDOUT].Filename = "STDOUT";
314 
315     Gbl_Files[ASL_FILE_STDERR].Handle   = stderr;
316     Gbl_Files[ASL_FILE_STDERR].Filename = "STDERR";
317 }
318 
319 
320 /*******************************************************************************
321  *
322  * FUNCTION:    main
323  *
324  * PARAMETERS:  Standard argc/argv
325  *
326  * RETURN:      Program termination code
327  *
328  * DESCRIPTION: C main routine for the Asl Compiler. Handle command line
329  *              options and begin the compile for each file on the command line
330  *
331  ******************************************************************************/
332 
333 int ACPI_SYSTEM_XFACE
334 main (
335     int                     argc,
336     char                    **argv)
337 {
338     ACPI_STATUS             Status;
339     int                     Index1;
340     int                     Index2;
341     int                     ReturnStatus = 0;
342 
343 
344     /*
345      * Big-endian machines are not currently supported. ACPI tables must
346      * be little-endian, and support for big-endian machines needs to
347      * be implemented.
348      */
349     if (AcpiIsBigEndianMachine ())
350     {
351         fprintf (stderr,
352             "iASL is not currently supported on big-endian machines.\n");
353         return (-1);
354     }
355 
356     AcpiOsInitialize ();
357     ACPI_DEBUG_INITIALIZE (); /* For debug version only */
358 
359     /* Initialize preprocessor and compiler before command line processing */
360 
361     signal (SIGINT, AslSignalHandler);
362     AcpiGbl_ExternalFileList = NULL;
363     AcpiDbgLevel = 0;
364     PrInitializePreprocessor ();
365     AslInitialize ();
366 
367     Index1 = Index2 = AslCommandLine (argc, argv);
368 
369     /* Allocate the line buffer(s), must be after command line */
370 
371     Gbl_LineBufferSize /= 2;
372     UtExpandLineBuffers ();
373 
374     /* Perform global actions first/only */
375 
376     if (Gbl_DisassembleAll)
377     {
378         while (argv[Index1])
379         {
380             Status = AcpiDmAddToExternalFileList (argv[Index1]);
381             if (ACPI_FAILURE (Status))
382             {
383                 return (-1);
384             }
385 
386             Index1++;
387         }
388     }
389 
390     /* Process each pathname/filename in the list, with possible wildcards */
391 
392     while (argv[Index2])
393     {
394         /*
395          * If -p not specified, we will use the input filename as the
396          * output filename prefix
397          */
398         if (Gbl_UseDefaultAmlFilename)
399         {
400             Gbl_OutputFilenamePrefix = argv[Index2];
401             UtConvertBackslashes (Gbl_OutputFilenamePrefix);
402         }
403 
404         Status = AslDoOneFile (argv[Index2]);
405         if (ACPI_FAILURE (Status))
406         {
407             ReturnStatus = -1;
408             goto CleanupAndExit;
409         }
410 
411         Index2++;
412     }
413 
414 
415 CleanupAndExit:
416 
417     UtFreeLineBuffers ();
418     AslParserCleanup ();
419 
420     if (AcpiGbl_ExternalFileList)
421     {
422         AcpiDmClearExternalFileList();
423     }
424 
425     return (ReturnStatus);
426 }
427