VBoxTpG.cpp@ 56564

Last change on this file since 56564 was 56310, checked in by vboxsync, 10 years ago
*bldprogs: Updated (C) year.
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1	/* $Id: VBoxTpG.cpp 56310 2015-06-09 22:36:56Z vboxsync $ */
2	/** @file
3	* VBox Build Tool - VBox Tracepoint Generator.
4	*/
5
6	/*
7	* Copyright (C) 2012-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#include <VBox/VBoxTpG.h>
23
24	#include <iprt/alloca.h>
25	#include <iprt/assert.h>
26	#include <iprt/ctype.h>
27	#include <iprt/env.h>
28	#include <iprt/err.h>
29	#include <iprt/file.h>
30	#include <iprt/getopt.h>
31	#include <iprt/initterm.h>
32	#include <iprt/list.h>
33	#include <iprt/mem.h>
34	#include <iprt/message.h>
35	#include <iprt/path.h>
36	#include <iprt/process.h>
37	#include <iprt/stream.h>
38	#include <iprt/string.h>
39	#include <iprt/uuid.h>
40
41	#include "scmstream.h"
42
43
44	/*******************************************************************************
45	* Structures and Typedefs *
46	*******************************************************************************/
47
48	typedef struct VTGATTRS
49	{
50	kVTGStability enmCode;
51	kVTGStability enmData;
52	kVTGClass enmDataDep;
53	} VTGATTRS;
54	typedef VTGATTRS *PVTGATTRS;
55
56
57	typedef struct VTGARG
58	{
59	RTLISTNODE ListEntry;
60	/** The argument name. (heap) */
61	char *pszName;
62	/** The type presented to the tracer (in string table). */
63	const char *pszTracerType;
64	/** The argument type used in the probe method in that context. (heap) */
65	char *pszCtxType;
66	/** Argument passing format string. First and only argument is the name.
67	* (const string) */
68	const char *pszArgPassingFmt;
69	/** The type flags. */
70	uint32_t fType;
71	} VTGARG;
72	typedef VTGARG *PVTGARG;
73
74	typedef struct VTGPROBE
75	{
76	RTLISTNODE ListEntry;
77	char *pszMangledName;
78	const char *pszUnmangledName;
79	RTLISTANCHOR ArgHead;
80	uint32_t cArgs;
81	bool fHaveLargeArgs;
82	uint32_t offArgList;
83	uint32_t iProbe;
84	} VTGPROBE;
85	typedef VTGPROBE *PVTGPROBE;
86
87	typedef struct VTGPROVIDER
88	{
89	RTLISTNODE ListEntry;
90	const char *pszName;
91
92	uint16_t iFirstProbe;
93	uint16_t cProbes;
94
95	VTGATTRS AttrSelf;
96	VTGATTRS AttrModules;
97	VTGATTRS AttrFunctions;
98	VTGATTRS AttrName;
99	VTGATTRS AttrArguments;
100
101	RTLISTANCHOR ProbeHead;
102	} VTGPROVIDER;
103	typedef VTGPROVIDER *PVTGPROVIDER;
104
105	/**
106	* A string table string.
107	*/
108	typedef struct VTGSTRING
109	{
110	/** The string space core. */
111	RTSTRSPACECORE Core;
112	/** The string table offset. */
113	uint32_t offStrTab;
114	/** The actual string. */
115	char szString[1];
116	} VTGSTRING;
117	typedef VTGSTRING *PVTGSTRING;
118
119
120	/*******************************************************************************
121	* Global Variables *
122	*******************************************************************************/
123	/** The string space organizing the string table strings. Each node is a VTGSTRING. */
124	static RTSTRSPACE g_StrSpace = NULL;
125	/** Used by the string table enumerator to set VTGSTRING::offStrTab. */
126	static uint32_t g_offStrTab;
127	/** List of providers created by the parser. */
128	static RTLISTANCHOR g_ProviderHead;
129	/** The number of type errors. */
130	static uint32_t g_cTypeErrors = 0;
131
132
133	/** @name Options
134	* @{ */
135	static enum
136	{
137	kVBoxTpGAction_Nothing,
138	kVBoxTpGAction_GenerateHeader,
139	kVBoxTpGAction_GenerateWrapperHeader,
140	kVBoxTpGAction_GenerateObject
141	} g_enmAction = kVBoxTpGAction_Nothing;
142	static uint32_t g_cBits = HC_ARCH_BITS;
143	static uint32_t g_cHostBits = HC_ARCH_BITS;
144	static uint32_t g_fTypeContext = VTG_TYPE_CTX_R0;
145	static const char *g_pszContextDefine = "IN_RING0";
146	static const char *g_pszContextDefine2 = NULL;
147	static bool g_fApplyCpp = false;
148	static uint32_t g_cVerbosity = 0;
149	static const char *g_pszOutput = NULL;
150	static const char *g_pszScript = NULL;
151	static const char *g_pszTempAsm = NULL;
152	#ifdef RT_OS_DARWIN
153	static const char *g_pszAssembler = "yasm";
154	static const char *g_pszAssemblerFmtOpt = "-f";
155	static const char g_szAssemblerFmtVal32[] = "macho32";
156	static const char g_szAssemblerFmtVal64[] = "macho64";
157	static const char g_szAssemblerOsDef[] = "RT_OS_DARWIN";
158	#elif defined(RT_OS_OS2)
159	static const char *pszAssembler = "nasm.exe";
160	static const char *pszAssemblerFmtOpt = "-f";
161	static const char g_szAssemblerFmtVal32[] = "obj";
162	static const char g_szAssemblerFmtVal64[] = "elf64";
163	static const char g_szAssemblerOsDef[] = "RT_OS_OS2";
164	#elif defined(RT_OS_WINDOWS)
165	static const char *g_pszAssembler = "yasm.exe";
166	static const char *g_pszAssemblerFmtOpt = "-f";
167	static const char g_szAssemblerFmtVal32[] = "win32";
168	static const char g_szAssemblerFmtVal64[] = "win64";
169	static const char g_szAssemblerOsDef[] = "RT_OS_WINDOWS";
170	#else
171	static const char *g_pszAssembler = "yasm";
172	static const char *g_pszAssemblerFmtOpt = "-f";
173	static const char g_szAssemblerFmtVal32[] = "elf32";
174	static const char g_szAssemblerFmtVal64[] = "elf64";
175	# ifdef RT_OS_FREEBSD
176	static const char g_szAssemblerOsDef[] = "RT_OS_FREEBSD";
177	# elif defined(RT_OS_NETBSD)
178	static const char g_szAssemblerOsDef[] = "RT_OS_NETBSD";
179	# elif defined(RT_OS_OPENBSD)
180	static const char g_szAssemblerOsDef[] = "RT_OS_OPENBSD";
181	# elif defined(RT_OS_LINUX)
182	static const char g_szAssemblerOsDef[] = "RT_OS_LINUX";
183	# elif defined(RT_OS_SOLARIS)
184	static const char g_szAssemblerOsDef[] = "RT_OS_SOLARIS";
185	# else
186	# error "Port me!"
187	# endif
188	#endif
189	static const char *g_pszAssemblerFmtVal = RT_CONCAT(g_szAssemblerFmtVal, HC_ARCH_BITS);
190	static const char *g_pszAssemblerDefOpt = "-D";
191	static const char *g_pszAssemblerIncOpt = "-I";
192	static char g_szAssemblerIncVal[RTPATH_MAX];
193	static const char *g_pszAssemblerIncVal = __FILE__ "/../../../include/";
194	static const char *g_pszAssemblerOutputOpt = "-o";
195	static unsigned g_cAssemblerOptions = 0;
196	static const char *g_apszAssemblerOptions[32];
197	static const char *g_pszProbeFnName = "SUPR0TracerFireProbe";
198	static bool g_fProbeFnImported = true;
199	static bool g_fPic = false;
200	/** @} */
201
202
203
204
205	/**
206	* Inserts a string into the string table, reusing any matching existing string
207	* if possible.
208	*
209	* @returns Read only string.
210	* @param pch The string to insert (need not be terminated).
211	* @param cch The length of the string.
212	*/
213	static const char strtabInsertN(const char pch, size_t cch)
214	{
215	PVTGSTRING pStr = (PVTGSTRING)RTStrSpaceGetN(&g_StrSpace, pch, cch);
216	if (pStr)
217	return pStr->szString;
218
219	/*
220	* Create a new entry.
221	*/
222	pStr = (PVTGSTRING)RTMemAlloc(RT_OFFSETOF(VTGSTRING, szString[cch + 1]));
223	if (!pStr)
224	return NULL;
225
226	pStr->Core.pszString = pStr->szString;
227	memcpy(pStr->szString, pch, cch);
228	pStr->szString[cch] = '\0';
229	pStr->offStrTab = UINT32_MAX;
230
231	bool fRc = RTStrSpaceInsert(&g_StrSpace, &pStr->Core);
232	Assert(fRc); NOREF(fRc);
233	return pStr->szString;
234	}
235
236
237	/**
238	* Retrieves the string table offset of the given string table string.
239	*
240	* @returns String table offset.
241	* @param pszStrTabString The string table string.
242	*/
243	static uint32_t strtabGetOff(const char *pszStrTabString)
244	{
245	PVTGSTRING pStr = RT_FROM_MEMBER(pszStrTabString, VTGSTRING, szString[0]);
246	Assert(pStr->Core.pszString == pszStrTabString);
247	return pStr->offStrTab;
248	}
249
250
251	/**
252	* Invokes the assembler.
253	*
254	* @returns Exit code.
255	* @param pszOutput The output file.
256	* @param pszTempAsm The source file.
257	*/
258	static RTEXITCODE generateInvokeAssembler(const char pszOutput, const char pszTempAsm)
259	{
260	const char *apszArgs[64];
261	unsigned iArg = 0;
262
263	apszArgs[iArg++] = g_pszAssembler;
264	apszArgs[iArg++] = g_pszAssemblerFmtOpt;
265	apszArgs[iArg++] = g_pszAssemblerFmtVal;
266	apszArgs[iArg++] = g_pszAssemblerDefOpt;
267	if (!strcmp(g_pszAssemblerFmtVal, "macho32") \|\| !strcmp(g_pszAssemblerFmtVal, "macho64"))
268	apszArgs[iArg++] = "ASM_FORMAT_MACHO";
269	else if (!strcmp(g_pszAssemblerFmtVal, "obj") \|\| !strcmp(g_pszAssemblerFmtVal, "omf"))
270	apszArgs[iArg++] = "ASM_FORMAT_OMF";
271	else if ( !strcmp(g_pszAssemblerFmtVal, "win32")
272	\|\| !strcmp(g_pszAssemblerFmtVal, "win64")
273	\|\| !strcmp(g_pszAssemblerFmtVal, "pe32")
274	\|\| !strcmp(g_pszAssemblerFmtVal, "pe64")
275	\|\| !strcmp(g_pszAssemblerFmtVal, "pe") )
276	apszArgs[iArg++] = "ASM_FORMAT_PE";
277	else if ( !strcmp(g_pszAssemblerFmtVal, "elf32")
278	\|\| !strcmp(g_pszAssemblerFmtVal, "elf64")
279	\|\| !strcmp(g_pszAssemblerFmtVal, "elf"))
280	apszArgs[iArg++] = "ASM_FORMAT_ELF";
281	else
282	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Unknown assembler format '%s'", g_pszAssemblerFmtVal);
283	apszArgs[iArg++] = g_pszAssemblerDefOpt;
284	if (g_cBits == 32)
285	apszArgs[iArg++] = "ARCH_BITS=32";
286	else
287	apszArgs[iArg++] = "ARCH_BITS=64";
288	apszArgs[iArg++] = g_pszAssemblerDefOpt;
289	if (g_cHostBits == 32)
290	apszArgs[iArg++] = "HC_ARCH_BITS=32";
291	else
292	apszArgs[iArg++] = "HC_ARCH_BITS=64";
293	apszArgs[iArg++] = g_pszAssemblerDefOpt;
294	if (g_cBits == 32)
295	apszArgs[iArg++] = "RT_ARCH_X86";
296	else
297	apszArgs[iArg++] = "RT_ARCH_AMD64";
298	apszArgs[iArg++] = g_pszAssemblerDefOpt;
299	apszArgs[iArg++] = g_pszContextDefine;
300	if (g_pszContextDefine2)
301	{
302	apszArgs[iArg++] = g_pszAssemblerDefOpt;
303	apszArgs[iArg++] = g_pszContextDefine2;
304	}
305	if (g_szAssemblerOsDef[0])
306	{
307	apszArgs[iArg++] = g_pszAssemblerDefOpt;
308	apszArgs[iArg++] = g_szAssemblerOsDef;
309	}
310	apszArgs[iArg++] = g_pszAssemblerIncOpt;
311	apszArgs[iArg++] = g_pszAssemblerIncVal;
312	apszArgs[iArg++] = g_pszAssemblerOutputOpt;
313	apszArgs[iArg++] = pszOutput;
314	for (unsigned i = 0; i < g_cAssemblerOptions; i++)
315	apszArgs[iArg++] = g_apszAssemblerOptions[i];
316	apszArgs[iArg++] = pszTempAsm;
317	apszArgs[iArg] = NULL;
318	Assert(iArg <= RT_ELEMENTS(apszArgs));
319
320	if (g_cVerbosity > 1)
321	{
322	RTMsgInfo("Starting assmbler '%s' with arguments:\n", g_pszAssembler);
323	for (unsigned i = 0; i < iArg; i++)
324	RTMsgInfo(" #%02u: '%s'\n", i, apszArgs[i]);
325	}
326
327	RTPROCESS hProc;
328	int rc = RTProcCreate(apszArgs[0], apszArgs, RTENV_DEFAULT, RTPROC_FLAGS_SEARCH_PATH, &hProc);
329	if (RT_FAILURE(rc))
330	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to start '%s' (assembler): %Rrc", apszArgs[0], rc);
331
332	RTPROCSTATUS Status;
333	rc = RTProcWait(hProc, RTPROCWAIT_FLAGS_BLOCK, &Status);
334	if (RT_FAILURE(rc))
335	{
336	RTProcTerminate(hProc);
337	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTProcWait failed: %Rrc", rc);
338	}
339	if (Status.enmReason == RTPROCEXITREASON_SIGNAL)
340	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The assembler failed: signal %d", Status.iStatus);
341	if (Status.enmReason != RTPROCEXITREASON_NORMAL)
342	return RTMsgErrorExit(RTEXITCODE_FAILURE, "The assembler failed: abend");
343	if (Status.iStatus != 0)
344	return RTMsgErrorExit((RTEXITCODE)Status.iStatus, "The assembler failed: exit code %d", Status.iStatus);
345
346	return RTEXITCODE_SUCCESS;
347	}
348
349
350	/**
351	* Worker that does the boring bits when generating a file.
352	*
353	* @returns Exit code.
354	* @param pszOutput The name of the output file.
355	* @param pszWhat What kind of file it is.
356	* @param pfnGenerator The callback function that provides the contents
357	* of the file.
358	*/
359	static RTEXITCODE generateFile(const char pszOutput, const char pszWhat,
360	RTEXITCODE (*pfnGenerator)(PSCMSTREAM))
361	{
362	SCMSTREAM Strm;
363	int rc = ScmStreamInitForWriting(&Strm, NULL);
364	if (RT_FAILURE(rc))
365	return RTMsgErrorExit(RTEXITCODE_FAILURE, "ScmStreamInitForWriting returned %Rrc when generating the %s file",
366	rc, pszWhat);
367
368	RTEXITCODE rcExit = pfnGenerator(&Strm);
369	if (RT_FAILURE(ScmStreamGetStatus(&Strm)))
370	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Stream error %Rrc generating the %s file",
371	ScmStreamGetStatus(&Strm), pszWhat);
372	if (rcExit == RTEXITCODE_SUCCESS)
373	{
374	rc = ScmStreamWriteToFile(&Strm, "%s", pszOutput);
375	if (RT_FAILURE(rc))
376	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "ScmStreamWriteToFile returned %Rrc when writing '%s' (%s)",
377	rc, pszOutput, pszWhat);
378	if (rcExit == RTEXITCODE_SUCCESS)
379	{
380	if (g_cVerbosity > 0)
381	RTMsgInfo("Successfully generated '%s'.", pszOutput);
382	if (g_cVerbosity > 1)
383	{
384	RTMsgInfo("================ %s - start ================", pszWhat);
385	ScmStreamRewindForReading(&Strm);
386	const char *pszLine;
387	size_t cchLine;
388	SCMEOL enmEol;
389	while ((pszLine = ScmStreamGetLine(&Strm, &cchLine, &enmEol)) != NULL)
390	RTPrintf("%.*s\n", cchLine, pszLine);
391	RTMsgInfo("================ %s - end ================", pszWhat);
392	}
393	}
394	}
395	ScmStreamDelete(&Strm);
396	return rcExit;
397	}
398
399
400	/**
401	* @callback_method_impl{FNRTSTRSPACECALLBACK, Writes the string table strings.}
402	*/
403	static DECLCALLBACK(int) generateAssemblyStrTabCallback(PRTSTRSPACECORE pStr, void *pvUser)
404	{
405	PVTGSTRING pVtgStr = (PVTGSTRING)pStr;
406	PSCMSTREAM pStrm = (PSCMSTREAM)pvUser;
407
408	pVtgStr->offStrTab = g_offStrTab;
409	g_offStrTab += (uint32_t)pVtgStr->Core.cchString + 1;
410
411	ScmStreamPrintf(pStrm,
412	" db '%s', 0 ; off=%u len=%zu\n",
413	pVtgStr->szString, pVtgStr->offStrTab, pVtgStr->Core.cchString);
414	return VINF_SUCCESS;
415	}
416
417
418	/**
419	* Generate assembly source that can be turned into an object file.
420	*
421	* (This is a generateFile callback.)
422	*
423	* @returns Exit code.
424	* @param pStrm The output stream.
425	*/
426	static RTEXITCODE generateAssembly(PSCMSTREAM pStrm)
427	{
428	PVTGPROVIDER pProvider;
429	PVTGPROBE pProbe;
430	PVTGARG pArg;
431
432
433	if (g_cVerbosity > 0)
434	RTMsgInfo("Generating assembly code...");
435
436	/*
437	* Write the file header.
438	*/
439	ScmStreamPrintf(pStrm,
440	"; $Id: VBoxTpG.cpp 56310 2015-06-09 22:36:56Z vboxsync $ \n"
441	";; @file\n"
442	"; Automatically generated from %s. Do NOT edit!\n"
443	";\n"
444	"\n"
445	"%%include \"iprt/asmdefs.mac\"\n"
446	"\n"
447	"\n"
448	";"
449	"; We put all the data in a dedicated section / segment.\n"
450	";\n"
451	"; In order to find the probe location specifiers, we do the necessary\n"
452	"; trickery here, ASSUMING that this object comes in first in the link\n"
453	"; editing process.\n"
454	";\n"
455	"%%ifdef ASM_FORMAT_OMF\n"
456	" %%macro VTG_GLOBAL 2\n"
457	" global NAME(%%1)\n"
458	" NAME(%%1):\n"
459	" %%endmacro\n"
460	" segment VTG.Obj public CLASS=VTG align=4096 use32\n"
461	"\n"
462	"%%elifdef ASM_FORMAT_MACHO\n"
463	" %%macro VTG_GLOBAL 2\n"
464	" global NAME(%%1)\n"
465	" NAME(%%1):\n"
466	" %%endmacro\n"
467	" %%ifdef IN_RING3\n"
468	" %%define VTG_NEW_MACHO_LINKER\n"
469	" %%elif ARCH_BITS == 64\n"
470	" %%define VTG_NEW_MACHO_LINKER\n"
471	" %%elifdef IN_RING0_AGNOSTIC\n"
472	" %%define VTG_NEW_MACHO_LINKER\n"
473	" %%endif\n"
474	" %%ifdef VTG_NEW_MACHO_LINKER\n"
475	" ; Section order hack!\n"
476	" ; With the ld64-97.17 linker there was a problem with it determining the section\n"
477	" ; order based on symbol references. The references to the start and end of the\n"
478	" ; __VTGPrLc section forced it in front of __VTGObj, we want __VTGObj first.\n"
479	" extern section$start$__VTG$__VTGObj\n"
480	" extern section$end$__VTG$__VTGObj\n"
481	" %%else\n"
482	" ; Creating 32-bit kext of the type MH_OBJECT. No fancy section end/start symbols handy.\n"
483	" [section __VTG __VTGObj align=16]\n"
484	"VTG_GLOBAL g_aVTGObj_LinkerPleaseNoticeMe, data\n"
485	" [section __VTG __VTGPrLc.Begin align=16]\n"
486	" dq 0, 0 ; Paranoia, related to the fudge below.\n"
487	"VTG_GLOBAL g_aVTGPrLc, data\n"
488	" [section __VTG __VTGPrLc align=16]\n"
489	"VTG_GLOBAL g_aVTGPrLc_LinkerPleaseNoticeMe, data\n"
490	" [section __VTG __VTGPrLc.End align=16]\n"
491	"VTG_GLOBAL g_aVTGPrLc_End, data\n"
492	" dq 0, 0 ; Fudge to work around unidentified linker where it would otherwise generate\n"
493	" ; a fix up of the first dword in __VTGPrLc.Begin despite the fact that it were\n"
494	" ; an empty section with nothing whatsoever to fix up.\n"
495	" %%endif\n"
496	" [section __VTG __VTGObj]\n"
497	"\n"
498	"%%elifdef ASM_FORMAT_PE\n"
499	" %%macro VTG_GLOBAL 2\n"
500	" global NAME(%%1)\n"
501	" NAME(%%1):\n"
502	" %%endmacro\n"
503	" [section VTGPrLc.Begin data align=64]\n"
504	/" times 16 db 0xcc\n"/
505	"VTG_GLOBAL g_aVTGPrLc, data\n"
506	" [section VTGPrLc.Data data align=4]\n"
507	" [section VTGPrLc.End data align=4]\n"
508	"VTG_GLOBAL g_aVTGPrLc_End, data\n"
509	/" times 16 db 0xcc\n"/
510	" [section VTGObj data align=32]\n"
511	"\n"
512	"%%elifdef ASM_FORMAT_ELF\n"
513	" %%macro VTG_GLOBAL 2\n"
514	" global NAME(%%1):%%2 hidden\n"
515	" NAME(%%1):\n"
516	" %%endmacro\n"
517	" [section .VTGData progbits alloc noexec write align=4096]\n"
518	" [section .VTGPrLc.Begin progbits alloc noexec write align=32]\n"
519	" dd 0,0,0,0, 0,0,0,0\n"
520	"VTG_GLOBAL g_aVTGPrLc, data\n"
521	" [section .VTGPrLc progbits alloc noexec write align=1]\n"
522	" [section .VTGPrLc.End progbits alloc noexec write align=1]\n"
523	"VTG_GLOBAL g_aVTGPrLc_End, data\n"
524	" dd 0,0,0,0, 0,0,0,0\n"
525	" [section .VTGData]\n"
526	"\n"
527	"%%else\n"
528	" %%error \"ASM_FORMAT_XXX is not defined\"\n"
529	"%%endif\n"
530	"\n"
531	"\n"
532	"VTG_GLOBAL g_VTGObjHeader, data\n"
533	" ;0 1 2 3\n"
534	" ;012345678901234567890123456789012\n"
535	" db 'VTG Object Header v1.5', 0, 0\n"
536	" dd %u\n"
537	" dd NAME(g_acVTGProbeEnabled_End) - NAME(g_VTGObjHeader)\n"
538	" dd NAME(g_achVTGStringTable) - NAME(g_VTGObjHeader)\n"
539	" dd NAME(g_achVTGStringTable_End) - NAME(g_achVTGStringTable)\n"
540	" dd NAME(g_aVTGArgLists) - NAME(g_VTGObjHeader)\n"
541	" dd NAME(g_aVTGArgLists_End) - NAME(g_aVTGArgLists)\n"
542	" dd NAME(g_aVTGProbes) - NAME(g_VTGObjHeader)\n"
543	" dd NAME(g_aVTGProbes_End) - NAME(g_aVTGProbes)\n"
544	" dd NAME(g_aVTGProviders) - NAME(g_VTGObjHeader)\n"
545	" dd NAME(g_aVTGProviders_End) - NAME(g_aVTGProviders)\n"
546	" dd NAME(g_acVTGProbeEnabled) - NAME(g_VTGObjHeader)\n"
547	" dd NAME(g_acVTGProbeEnabled_End) - NAME(g_acVTGProbeEnabled)\n"
548	" dd 0\n"
549	" dd 0\n"
550	"%%ifdef VTG_NEW_MACHO_LINKER\n"
551	" extern section$start$__VTG$__VTGPrLc\n"
552	" RTCCPTR_DEF section$start$__VTG$__VTGPrLc\n"
553	" %%if ARCH_BITS == 32\n"
554	" dd 0\n"
555	" %%endif\n"
556	" extern section$end$__VTG$__VTGPrLc\n"
557	" RTCCPTR_DEF section$end$__VTG$__VTGPrLc\n"
558	" %%if ARCH_BITS == 32\n"
559	" dd 0\n"
560	" %%endif\n"
561	"%%else\n"
562	" RTCCPTR_DEF NAME(g_aVTGPrLc)\n"
563	" %%if ARCH_BITS == 32\n"
564	" dd 0\n"
565	" %%endif\n"
566	" RTCCPTR_DEF NAME(g_aVTGPrLc_End)\n"
567	" %%if ARCH_BITS == 32\n"
568	" dd 0\n"
569	" %%endif\n"
570	"%%endif\n"
571	,
572	g_pszScript, g_cBits);
573	RTUUID Uuid;
574	int rc = RTUuidCreate(&Uuid);
575	if (RT_FAILURE(rc))
576	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTUuidCreate failed: %Rrc", rc);
577	ScmStreamPrintf(pStrm,
578	" dd 0%08xh, 0%08xh, 0%08xh, 0%08xh\n"
579	"%%ifdef VTG_NEW_MACHO_LINKER\n"
580	" RTCCPTR_DEF section$start$__VTG$__VTGObj\n"
581	" %%if ARCH_BITS == 32\n"
582	" dd 0\n"
583	" %%endif\n"
584	"%%else\n"
585	" dd 0, 0\n"
586	"%%endif\n"
587	" dd 0, 0\n"
588	, Uuid.au32[0], Uuid.au32[1], Uuid.au32[2], Uuid.au32[3]);
589
590	/*
591	* Dump the string table before we start using the strings.
592	*/
593	ScmStreamPrintf(pStrm,
594	"\n"
595	";\n"
596	"; The string table.\n"
597	";\n"
598	"VTG_GLOBAL g_achVTGStringTable, data\n");
599	g_offStrTab = 0;
600	RTStrSpaceEnumerate(&g_StrSpace, generateAssemblyStrTabCallback, pStrm);
601	ScmStreamPrintf(pStrm,
602	"VTG_GLOBAL g_achVTGStringTable_End, data\n");
603
604	/*
605	* Write out the argument lists before we use them.
606	*/
607	ScmStreamPrintf(pStrm,
608	"\n"
609	";\n"
610	"; The argument lists.\n"
611	";\n"
612	"ALIGNDATA(16)\n"
613	"VTG_GLOBAL g_aVTGArgLists, data\n");
614	uint32_t off = 0;
615	RTListForEach(&g_ProviderHead, pProvider, VTGPROVIDER, ListEntry)
616	{
617	RTListForEach(&pProvider->ProbeHead, pProbe, VTGPROBE, ListEntry)
618	{
619	if (pProbe->offArgList != UINT32_MAX)
620	continue;
621
622	/* Write it. */
623	pProbe->offArgList = off;
624	ScmStreamPrintf(pStrm,
625	" ; off=%u\n"
626	" db %2u ; Argument count\n"
627	" db %u ; fHaveLargeArgs\n"
628	" db 0, 0 ; Reserved\n"
629	, off, pProbe->cArgs, (int)pProbe->fHaveLargeArgs);
630	off += 4;
631	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
632	{
633	ScmStreamPrintf(pStrm,
634	" dd %8u ; type '%s' (name '%s')\n"
635	" dd 0%08xh ; type flags\n",
636	strtabGetOff(pArg->pszTracerType), pArg->pszTracerType, pArg->pszName,
637	pArg->fType);
638	off += 8;
639	}
640
641	/* Look for matching argument lists (lazy bird walks the whole list). */
642	PVTGPROVIDER pProv2;
643	RTListForEach(&g_ProviderHead, pProv2, VTGPROVIDER, ListEntry)
644	{
645	PVTGPROBE pProbe2;
646	RTListForEach(&pProvider->ProbeHead, pProbe2, VTGPROBE, ListEntry)
647	{
648	if (pProbe2->offArgList != UINT32_MAX)
649	continue;
650	if (pProbe2->cArgs != pProbe->cArgs)
651	continue;
652
653	PVTGARG pArg2;
654	pArg = RTListNodeGetNext(&pProbe->ArgHead, VTGARG, ListEntry);
655	pArg2 = RTListNodeGetNext(&pProbe2->ArgHead, VTGARG, ListEntry);
656	int32_t cArgs = pProbe->cArgs;
657	while ( cArgs-- > 0
658	&& pArg2->pszTracerType == pArg->pszTracerType
659	&& pArg2->fType == pArg->fType)
660	{
661	pArg = RTListNodeGetNext(&pArg->ListEntry, VTGARG, ListEntry);
662	pArg2 = RTListNodeGetNext(&pArg2->ListEntry, VTGARG, ListEntry);
663	}
664	if (cArgs >= 0)
665	continue;
666	pProbe2->offArgList = pProbe->offArgList;
667	}
668	}
669	}
670	}
671	ScmStreamPrintf(pStrm,
672	"VTG_GLOBAL g_aVTGArgLists_End, data\n");
673
674
675	/*
676	* Probe definitions.
677	*/
678	ScmStreamPrintf(pStrm,
679	"\n"
680	";\n"
681	"; Prob definitions.\n"
682	";\n"
683	"ALIGNDATA(16)\n"
684	"VTG_GLOBAL g_aVTGProbes, data\n"
685	"\n");
686	uint32_t iProvider = 0;
687	uint32_t iProbe = 0;
688	RTListForEach(&g_ProviderHead, pProvider, VTGPROVIDER, ListEntry)
689	{
690	pProvider->iFirstProbe = iProbe;
691	RTListForEach(&pProvider->ProbeHead, pProbe, VTGPROBE, ListEntry)
692	{
693	ScmStreamPrintf(pStrm,
694	"VTG_GLOBAL g_VTGProbeData_%s_%s, data ; idx=#%4u\n"
695	" dd %6u ; offName\n"
696	" dd %6u ; offArgList\n"
697	" dw (NAME(g_cVTGProbeEnabled_%s_%s) - NAME(g_acVTGProbeEnabled)) / 4 ; idxEnabled\n"
698	" dw %6u ; idxProvider\n"
699	" dd NAME(g_VTGObjHeader) - NAME(g_VTGProbeData_%s_%s) ; offObjHdr\n"
700	,
701	pProvider->pszName, pProbe->pszMangledName, iProbe,
702	strtabGetOff(pProbe->pszUnmangledName),
703	pProbe->offArgList,
704	pProvider->pszName, pProbe->pszMangledName,
705	iProvider,
706	pProvider->pszName, pProbe->pszMangledName
707	);
708	pProbe->iProbe = iProbe;
709	iProbe++;
710	}
711	pProvider->cProbes = iProbe - pProvider->iFirstProbe;
712	iProvider++;
713	}
714	ScmStreamPrintf(pStrm, "VTG_GLOBAL g_aVTGProbes_End, data\n");
715
716	/*
717	* The provider data.
718	*/
719	ScmStreamPrintf(pStrm,
720	"\n"
721	";\n"
722	"; Provider data.\n"
723	";\n"
724	"ALIGNDATA(16)\n"
725	"VTG_GLOBAL g_aVTGProviders, data\n");
726	iProvider = 0;
727	RTListForEach(&g_ProviderHead, pProvider, VTGPROVIDER, ListEntry)
728	{
729	ScmStreamPrintf(pStrm,
730	" ; idx=#%4u - %s\n"
731	" dd %6u ; name\n"
732	" dw %6u ; index of first probe\n"
733	" dw %6u ; count of probes\n"
734	" db %d, %d, %d ; AttrSelf\n"
735	" db %d, %d, %d ; AttrModules\n"
736	" db %d, %d, %d ; AttrFunctions\n"
737	" db %d, %d, %d ; AttrName\n"
738	" db %d, %d, %d ; AttrArguments\n"
739	" db 0 ; reserved\n"
740	,
741	iProvider, pProvider->pszName,
742	strtabGetOff(pProvider->pszName),
743	pProvider->iFirstProbe,
744	pProvider->cProbes,
745	pProvider->AttrSelf.enmCode, pProvider->AttrSelf.enmData, pProvider->AttrSelf.enmDataDep,
746	pProvider->AttrModules.enmCode, pProvider->AttrModules.enmData, pProvider->AttrModules.enmDataDep,
747	pProvider->AttrFunctions.enmCode, pProvider->AttrFunctions.enmData, pProvider->AttrFunctions.enmDataDep,
748	pProvider->AttrName.enmCode, pProvider->AttrName.enmData, pProvider->AttrName.enmDataDep,
749	pProvider->AttrArguments.enmCode, pProvider->AttrArguments.enmData, pProvider->AttrArguments.enmDataDep);
750	iProvider++;
751	}
752	ScmStreamPrintf(pStrm, "VTG_GLOBAL g_aVTGProviders_End, data\n");
753
754	/*
755	* Declare the probe enable flags.
756	*
757	* These must be placed at the end so they'll end up adjacent to the probe
758	* locations. This is important for reducing the amount of memory we need
759	* to lock down for user mode modules.
760	*/
761	ScmStreamPrintf(pStrm,
762	";\n"
763	"; Probe enabled flags.\n"
764	";\n"
765	"ALIGNDATA(16)\n"
766	"VTG_GLOBAL g_acVTGProbeEnabled, data\n"
767	);
768	uint32_t cProbes = 0;
769	RTListForEach(&g_ProviderHead, pProvider, VTGPROVIDER, ListEntry)
770	{
771	RTListForEach(&pProvider->ProbeHead, pProbe, VTGPROBE, ListEntry)
772	{
773	ScmStreamPrintf(pStrm,
774	"VTG_GLOBAL g_cVTGProbeEnabled_%s_%s, data\n"
775	" dd 0\n",
776	pProvider->pszName, pProbe->pszMangledName);
777	cProbes++;
778	}
779	}
780	ScmStreamPrintf(pStrm, "VTG_GLOBAL g_acVTGProbeEnabled_End, data\n");
781	if (cProbes >= _32K)
782	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Too many probes: %u (max %u)", cProbes, _32K - 1);
783
784
785	/*
786	* Emit code for the stub functions.
787	*/
788	bool const fWin64 = g_cBits == 64 && (!strcmp(g_pszAssemblerFmtVal, "win64") \|\| !strcmp(g_pszAssemblerFmtVal, "pe64"));
789	bool const fElf = !strcmp(g_pszAssemblerFmtVal, "elf32") \|\| !strcmp(g_pszAssemblerFmtVal, "elf64");
790	ScmStreamPrintf(pStrm,
791	"\n"
792	";\n"
793	"; Prob stubs.\n"
794	";\n"
795	"BEGINCODE\n"
796	);
797	if (g_fProbeFnImported)
798	ScmStreamPrintf(pStrm,
799	"EXTERN_IMP2 %s\n"
800	"BEGINCODE ; EXTERN_IMP2 changes section\n",
801	g_pszProbeFnName);
802	else
803	ScmStreamPrintf(pStrm, "extern NAME(%s)\n", g_pszProbeFnName);
804
805	RTListForEach(&g_ProviderHead, pProvider, VTGPROVIDER, ListEntry)
806	{
807	RTListForEach(&pProvider->ProbeHead, pProbe, VTGPROBE, ListEntry)
808	{
809	ScmStreamPrintf(pStrm,
810	"\n"
811	"VTG_GLOBAL VTGProbeStub_%s_%s, function; (VBOXTPGPROBELOC pVTGProbeLoc",
812	pProvider->pszName, pProbe->pszMangledName);
813	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
814	{
815	ScmStreamPrintf(pStrm, ", %s %s", pArg->pszTracerType, pArg->pszName);
816	}
817	ScmStreamPrintf(pStrm,
818	");\n");
819
820	/*
821	* Check if the probe in question is enabled.
822	*/
823	if (g_cBits == 32)
824	ScmStreamPrintf(pStrm,
825	" mov eax, [esp + 4]\n"
826	" test byte [eax+3], 0x80 ; fEnabled == true?\n"
827	" jz .return ; jump on false\n");
828	else if (fWin64)
829	ScmStreamPrintf(pStrm,
830	" test byte [rcx+3], 0x80 ; fEnabled == true?\n"
831	" jz .return ; jump on false\n");
832	else
833	ScmStreamPrintf(pStrm,
834	" test byte [rdi+3], 0x80 ; fEnabled == true?\n"
835	" jz .return ; jump on false\n");
836
837	/*
838	* Jump to the fire-probe function.
839	*/
840	if (g_cBits == 32)
841	ScmStreamPrintf(pStrm, g_fPic && fElf ?
842	" jmp %s wrt ..plt\n"
843	: g_fProbeFnImported ?
844	" mov ecx, IMP2(%s)\n"
845	" jmp ecx\n"
846	:
847	" jmp NAME(%s)\n"
848	, g_pszProbeFnName);
849	else
850	ScmStreamPrintf(pStrm, g_fPic && fElf ?
851	" jmp [rel %s wrt ..got]\n"
852	: g_fProbeFnImported ?
853	" jmp IMP2(%s)\n"
854	:
855	" jmp NAME(%s)\n"
856	, g_pszProbeFnName);
857
858	ScmStreamPrintf(pStrm,
859	".return:\n"
860	" ret ; The probe was disabled, return\n"
861	"\n");
862	}
863	}
864
865	return RTEXITCODE_SUCCESS;
866	}
867
868
869	static RTEXITCODE generateObject(const char pszOutput, const char pszTempAsm)
870	{
871	if (!pszTempAsm)
872	{
873	size_t cch = strlen(pszOutput);
874	char psz = (char )alloca(cch + sizeof(".asm"));
875	memcpy(psz, pszOutput, cch);
876	memcpy(psz + cch, ".asm", sizeof(".asm"));
877	pszTempAsm = psz;
878	}
879
880	RTEXITCODE rcExit = generateFile(pszTempAsm, "assembly", generateAssembly);
881	if (rcExit == RTEXITCODE_SUCCESS)
882	rcExit = generateInvokeAssembler(pszOutput, pszTempAsm);
883	RTFileDelete(pszTempAsm);
884	return rcExit;
885	}
886
887
888	static RTEXITCODE generateProbeDefineName(char pszBuf, size_t cbBuf, const char pszProvider, const char *pszProbe)
889	{
890	size_t cbMax = strlen(pszProvider) + 1 + strlen(pszProbe) + 1;
891	if (cbMax > cbBuf \|\| cbMax > 80)
892	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Probe '%s' in provider '%s' ends up with a too long defined\n", pszProbe, pszProvider);
893
894	while (*pszProvider)
895	pszBuf++ = RT_C_TO_UPPER(pszProvider++);
896
897	*pszBuf++ = '_';
898
899	while (*pszProbe)
900	{
901	if (pszProbe[0] == '_' && pszProbe[1] == '_')
902	pszProbe++;
903	pszBuf++ = RT_C_TO_UPPER(pszProbe++);
904	}
905
906	*pszBuf = '\0';
907	return RTEXITCODE_SUCCESS;
908	}
909
910
911	/**
912	* Called via generateFile to generate the header file.
913	*
914	* @returns Exit code status.
915	* @param pStrm The output stream.
916	*/
917	static RTEXITCODE generateHeader(PSCMSTREAM pStrm)
918	{
919	/*
920	* Calc the double inclusion blocker define and then write the file header.
921	*/
922	char szTmp[4096];
923	const char *pszName = RTPathFilename(g_pszScript);
924	size_t cchName = strlen(pszName);
925	if (cchName >= sizeof(szTmp) - 64)
926	return RTMsgErrorExit(RTEXITCODE_FAILURE, "File name is too long '%s'", pszName);
927	szTmp[0] = '_';
928	szTmp[1] = '_';
929	szTmp[2] = '_';
930	memcpy(&szTmp[3], pszName, cchName);
931	szTmp[3 + cchName + 0] = '_';
932	szTmp[3 + cchName + 1] = '_';
933	szTmp[3 + cchName + 2] = '_';
934	szTmp[3 + cchName + 3] = '\0';
935	char *psz = &szTmp[3];
936	while (*psz)
937	{
938	if (!RT_C_IS_ALNUM(psz) && psz != '_')
939	*psz = '_';
940	psz++;
941	}
942
943	ScmStreamPrintf(pStrm,
944	"/* $Id: VBoxTpG.cpp 56310 2015-06-09 22:36:56Z vboxsync $ */\n"
945	"/** @file\n"
946	" * Automatically generated from %s. Do NOT edit!\n"
947	" */\n"
948	"\n"
949	"#ifndef %s\n"
950	"#define %s\n"
951	"\n"
952	"#include <VBox/VBoxTpG.h>\n"
953	"\n"
954	"#ifndef %s\n"
955	"# error \"Expected '%s' to be defined\"\n"
956	"#endif\n"
957	"\n"
958	"RT_C_DECLS_BEGIN\n"
959	"\n"
960	"#ifdef VBOX_WITH_DTRACE\n"
961	"\n"
962	"# ifdef _MSC_VER\n"
963	"# pragma data_seg(VTG_LOC_SECT)\n"
964	"# pragma data_seg()\n"
965	"# endif\n"
966	"\n"
967	,
968	g_pszScript,
969	szTmp,
970	szTmp,
971	g_pszContextDefine,
972	g_pszContextDefine);
973
974	/*
975	* Declare data, code and macros for each probe.
976	*/
977	PVTGPROVIDER pProv;
978	PVTGPROBE pProbe;
979	PVTGARG pArg;
980	RTListForEach(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry)
981	{
982	RTListForEach(&pProv->ProbeHead, pProbe, VTGPROBE, ListEntry)
983	{
984	PVTGARG const pFirstArg = RTListGetFirst(&pProbe->ArgHead, VTGARG, ListEntry);
985
986	ScmStreamPrintf(pStrm,
987	"extern uint32_t g_cVTGProbeEnabled_%s_%s;\n"
988	"extern VTGDESCPROBE g_VTGProbeData_%s_%s;\n"
989	"DECLASM(void) VTGProbeStub_%s_%s(PVTGPROBELOC",
990	pProv->pszName, pProbe->pszMangledName,
991	pProv->pszName, pProbe->pszMangledName,
992	pProv->pszName, pProbe->pszMangledName);
993	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
994	{
995	ScmStreamPrintf(pStrm, ", %s", pArg->pszCtxType);
996	}
997	generateProbeDefineName(szTmp, sizeof(szTmp), pProv->pszName, pProbe->pszMangledName);
998	ScmStreamPrintf(pStrm,
999	");\n"
1000	"# define %s_ENABLED() \\\n"
1001	" (RT_UNLIKELY(g_cVTGProbeEnabled_%s_%s)) \n"
1002	"# define %s("
1003	, szTmp,
1004	pProv->pszName, pProbe->pszMangledName,
1005	szTmp);
1006	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1007	{
1008	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1009	ScmStreamPrintf(pStrm, "%s", pArg->pszName);
1010	else
1011	ScmStreamPrintf(pStrm, ", %s", pArg->pszName);
1012	}
1013	ScmStreamPrintf(pStrm,
1014	") \\\n"
1015	" do { \\\n"
1016	" if (RT_UNLIKELY(g_cVTGProbeEnabled_%s_%s)) \\\n"
1017	" { \\\n"
1018	" VTG_DECL_VTGPROBELOC(s_VTGProbeLoc) = \\\n"
1019	" { __LINE__, 0, 0, __FUNCTION__, &g_VTGProbeData_%s_%s }; \\\n"
1020	" VTGProbeStub_%s_%s(&s_VTGProbeLoc",
1021	pProv->pszName, pProbe->pszMangledName,
1022	pProv->pszName, pProbe->pszMangledName,
1023	pProv->pszName, pProbe->pszMangledName);
1024	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1025	{
1026	ScmStreamPrintf(pStrm, pArg->pszArgPassingFmt, pArg->pszName);
1027	}
1028	ScmStreamPrintf(pStrm,
1029	"); \\\n"
1030	" } \\\n"
1031	" { \\\n" );
1032	uint32_t iArg = 0;
1033	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1034	{
1035	if ((pArg->fType & (VTG_TYPE_FIXED_SIZED \| VTG_TYPE_AUTO_CONV_PTR)) == VTG_TYPE_FIXED_SIZED)
1036	ScmStreamPrintf(pStrm,
1037	" AssertCompile(sizeof(%s) == %u); \\\n"
1038	" AssertCompile(sizeof(%s) <= %u); \\\n",
1039	pArg->pszTracerType, pArg->fType & VTG_TYPE_SIZE_MASK,
1040	pArg->pszName, pArg->fType & VTG_TYPE_SIZE_MASK);
1041	else if (pArg->fType & (VTG_TYPE_POINTER \| VTG_TYPE_HC_ARCH_SIZED))
1042	ScmStreamPrintf(pStrm,
1043	" AssertCompile(sizeof(%s) <= sizeof(uintptr_t)); \\\n"
1044	" AssertCompile(sizeof(%s) <= sizeof(uintptr_t)); \\\n",
1045	pArg->pszName,
1046	pArg->pszTracerType);
1047	iArg++;
1048	}
1049	ScmStreamPrintf(pStrm,
1050	" } \\\n"
1051	" } while (0)\n"
1052	"\n");
1053	}
1054	}
1055
1056	ScmStreamPrintf(pStrm,
1057	"\n"
1058	"#else\n"
1059	"\n");
1060	RTListForEach(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry)
1061	{
1062	RTListForEach(&pProv->ProbeHead, pProbe, VTGPROBE, ListEntry)
1063	{
1064	generateProbeDefineName(szTmp, sizeof(szTmp), pProv->pszName, pProbe->pszMangledName);
1065	ScmStreamPrintf(pStrm,
1066	"# define %s_ENABLED() (false)\n"
1067	"# define %s("
1068	, szTmp, szTmp);
1069	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1070	{
1071	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1072	ScmStreamPrintf(pStrm, "%s", pArg->pszName);
1073	else
1074	ScmStreamPrintf(pStrm, ", %s", pArg->pszName);
1075	}
1076	ScmStreamPrintf(pStrm,
1077	") do { } while (0)\n");
1078	}
1079	}
1080
1081	ScmStreamWrite(pStrm, RT_STR_TUPLE("\n"
1082	"#endif\n"
1083	"\n"
1084	"RT_C_DECLS_END\n"
1085	"#endif\n"));
1086	return RTEXITCODE_SUCCESS;
1087	}
1088
1089
1090	/**
1091	* Called via generateFile to generate the wrapper header file.
1092	*
1093	* @returns Exit code status.
1094	* @param pStrm The output stream.
1095	*/
1096	static RTEXITCODE generateWrapperHeader(PSCMSTREAM pStrm)
1097	{
1098	/*
1099	* Calc the double inclusion blocker define and then write the file header.
1100	*/
1101	char szTmp[4096];
1102	const char *pszName = RTPathFilename(g_pszScript);
1103	size_t cchName = strlen(pszName);
1104	if (cchName >= sizeof(szTmp) - 64)
1105	return RTMsgErrorExit(RTEXITCODE_FAILURE, "File name is too long '%s'", pszName);
1106	szTmp[0] = '_';
1107	szTmp[1] = '_';
1108	szTmp[2] = '_';
1109	memcpy(&szTmp[3], pszName, cchName);
1110	strcpy(&szTmp[3 + cchName ], "___WRAPPER___");
1111	char *psz = &szTmp[3];
1112	while (*psz)
1113	{
1114	if (!RT_C_IS_ALNUM(psz) && psz != '_')
1115	*psz = '_';
1116	psz++;
1117	}
1118
1119	ScmStreamPrintf(pStrm,
1120	"/* $Id: VBoxTpG.cpp 56310 2015-06-09 22:36:56Z vboxsync $ */\n"
1121	"/** @file\n"
1122	" * Automatically generated from %s. Do NOT edit!\n"
1123	" */\n"
1124	"\n"
1125	"#ifndef %s\n"
1126	"#define %s\n"
1127	"\n"
1128	"#include <VBox/VBoxTpG.h>\n"
1129	"\n"
1130	"#ifndef %s\n"
1131	"# error \"Expected '%s' to be defined\"\n"
1132	"#endif\n"
1133	"\n"
1134	"#ifdef VBOX_WITH_DTRACE\n"
1135	"\n"
1136	,
1137	g_pszScript,
1138	szTmp,
1139	szTmp,
1140	g_pszContextDefine,
1141	g_pszContextDefine);
1142
1143	/*
1144	* Declare macros for each probe.
1145	*/
1146	PVTGPROVIDER pProv;
1147	PVTGPROBE pProbe;
1148	PVTGARG pArg;
1149	RTListForEach(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry)
1150	{
1151	RTListForEach(&pProv->ProbeHead, pProbe, VTGPROBE, ListEntry)
1152	{
1153	PVTGARG const pFirstArg = RTListGetFirst(&pProbe->ArgHead, VTGARG, ListEntry);
1154
1155	generateProbeDefineName(szTmp, sizeof(szTmp), pProv->pszName, pProbe->pszMangledName);
1156	ScmStreamPrintf(pStrm,
1157	"# define %s("
1158	, szTmp);
1159	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1160	{
1161	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1162	ScmStreamPrintf(pStrm, "%s", pArg->pszName);
1163	else
1164	ScmStreamPrintf(pStrm, ", %s", pArg->pszName);
1165	}
1166	ScmStreamPrintf(pStrm,
1167	") \\\n"
1168	" do { \\\n"
1169	" if (RT_UNLIKELY(%s_ENABLED())) \\\n"
1170	" { \\\n"
1171	" %s_ORIGINAL("
1172	, szTmp, szTmp);
1173	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1174	{
1175	const char *pszFmt = pArg->pszArgPassingFmt;
1176	if (pArg->fType & VTG_TYPE_AUTO_CONV_PTR)
1177	{
1178	/* Casting is required. ASSUMES sizeof(RTR0PTR) == sizeof(RTR3PTR) - safe! */
1179	pszFmt += sizeof(", ") - 1;
1180	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1181	ScmStreamPrintf(pStrm, "(%s)%M", pArg->pszTracerType, pszFmt, pArg->pszName);
1182	else
1183	ScmStreamPrintf(pStrm, ", (%s)%M", pArg->pszTracerType, pszFmt, pArg->pszName);
1184	}
1185	else if (pArg->fType & VTG_TYPE_CONST_CHAR_PTR)
1186	{
1187	/* Casting from 'const char ' (probe) to 'char ' (dtrace) is required to shut up warnings. */
1188	pszFmt += sizeof(", ") - 1;
1189	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1190	ScmStreamPrintf(pStrm, "(char *)%M", pszFmt, pArg->pszName);
1191	else
1192	ScmStreamPrintf(pStrm, ", (char *)%M", pszFmt, pArg->pszName);
1193	}
1194	else
1195	{
1196	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1197	ScmStreamPrintf(pStrm, pArg->pszArgPassingFmt + sizeof(", ") - 1, pArg->pszName);
1198	else
1199	ScmStreamPrintf(pStrm, pArg->pszArgPassingFmt, pArg->pszName);
1200	}
1201	}
1202	ScmStreamPrintf(pStrm,
1203	"); \\\n"
1204	" } \\\n"
1205	" } while (0)\n"
1206	"\n");
1207	}
1208	}
1209
1210	ScmStreamPrintf(pStrm,
1211	"\n"
1212	"#else\n"
1213	"\n");
1214	RTListForEach(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry)
1215	{
1216	RTListForEach(&pProv->ProbeHead, pProbe, VTGPROBE, ListEntry)
1217	{
1218	generateProbeDefineName(szTmp, sizeof(szTmp), pProv->pszName, pProbe->pszMangledName);
1219	ScmStreamPrintf(pStrm,
1220	"# define %s("
1221	, szTmp);
1222	RTListForEach(&pProbe->ArgHead, pArg, VTGARG, ListEntry)
1223	{
1224	if (RTListNodeIsFirst(&pProbe->ArgHead, &pArg->ListEntry))
1225	ScmStreamPrintf(pStrm, "%s", pArg->pszName);
1226	else
1227	ScmStreamPrintf(pStrm, ", %s", pArg->pszName);
1228	}
1229	ScmStreamPrintf(pStrm,
1230	") do { } while (0)\n");
1231	}
1232	}
1233
1234	ScmStreamWrite(pStrm, RT_STR_TUPLE("\n"
1235	"#endif\n"
1236	"\n"
1237	"#endif\n"));
1238	return RTEXITCODE_SUCCESS;
1239	}
1240
1241
1242	/**
1243	* Parser error with line and position.
1244	*
1245	* @returns RTEXITCODE_FAILURE.
1246	* @param pStrm The stream.
1247	* @param cb The offset from the current position to the
1248	* point of failure.
1249	* @param pszMsg The message to display.
1250	*/
1251	static RTEXITCODE parseError(PSCMSTREAM pStrm, size_t cb, const char *pszMsg)
1252	{
1253	if (cb)
1254	ScmStreamSeekRelative(pStrm, -(ssize_t)cb);
1255	size_t const off = ScmStreamTell(pStrm);
1256	size_t const iLine = ScmStreamTellLine(pStrm);
1257	ScmStreamSeekByLine(pStrm, iLine);
1258	size_t const offLine = ScmStreamTell(pStrm);
1259
1260	RTPrintf("%s:%d:%zd: error: %s.\n", g_pszScript, iLine + 1, off - offLine + 1, pszMsg);
1261
1262	size_t cchLine;
1263	SCMEOL enmEof;
1264	const char *pszLine = ScmStreamGetLineByNo(pStrm, iLine, &cchLine, &enmEof);
1265	if (pszLine)
1266	RTPrintf(" %.*s\n"
1267	" %*s^\n",
1268	cchLine, pszLine, off - offLine, "");
1269	return RTEXITCODE_FAILURE;
1270	}
1271
1272
1273	/**
1274	* Parser error with line and position.
1275	*
1276	* @returns RTEXITCODE_FAILURE.
1277	* @param pStrm The stream.
1278	* @param cb The offset from the current position to the
1279	* point of failure.
1280	* @param pszMsg The message to display.
1281	*/
1282	static RTEXITCODE parseErrorAbs(PSCMSTREAM pStrm, size_t off, const char *pszMsg)
1283	{
1284	ScmStreamSeekAbsolute(pStrm, off);
1285	return parseError(pStrm, 0, pszMsg);
1286	}
1287
1288	/**
1289	* Handles a C++ one line comment.
1290	*
1291	* @returns Exit code.
1292	* @param pStrm The stream.
1293	*/
1294	static RTEXITCODE parseOneLineComment(PSCMSTREAM pStrm)
1295	{
1296	ScmStreamSeekByLine(pStrm, ScmStreamTellLine(pStrm) + 1);
1297	return RTEXITCODE_SUCCESS;
1298	}
1299
1300	/**
1301	* Handles a multi-line C/C++ comment.
1302	*
1303	* @returns Exit code.
1304	* @param pStrm The stream.
1305	*/
1306	static RTEXITCODE parseMultiLineComment(PSCMSTREAM pStrm)
1307	{
1308	unsigned ch;
1309	while ((ch = ScmStreamGetCh(pStrm)) != ~(unsigned)0)
1310	{
1311	if (ch == '*')
1312	{
1313	do
1314	ch = ScmStreamGetCh(pStrm);
1315	while (ch == '*');
1316	if (ch == '/')
1317	return RTEXITCODE_SUCCESS;
1318	}
1319	}
1320
1321	parseError(pStrm, 1, "Expected end of comment, got end of file");
1322	return RTEXITCODE_FAILURE;
1323	}
1324
1325
1326	/**
1327	* Skips spaces and comments.
1328	*
1329	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE.
1330	* @param pStrm The stream..
1331	*/
1332	static RTEXITCODE parseSkipSpacesAndComments(PSCMSTREAM pStrm)
1333	{
1334	unsigned ch;
1335	while ((ch = ScmStreamPeekCh(pStrm)) != ~(unsigned)0)
1336	{
1337	if (!RT_C_IS_SPACE(ch) && ch != '/')
1338	return RTEXITCODE_SUCCESS;
1339	unsigned ch2 = ScmStreamGetCh(pStrm); AssertBreak(ch == ch2); NOREF(ch2);
1340	if (ch == '/')
1341	{
1342	ch = ScmStreamGetCh(pStrm);
1343	RTEXITCODE rcExit;
1344	if (ch == '*')
1345	rcExit = parseMultiLineComment(pStrm);
1346	else if (ch == '/')
1347	rcExit = parseOneLineComment(pStrm);
1348	else
1349	rcExit = parseError(pStrm, 2, "Unexpected character");
1350	if (rcExit != RTEXITCODE_SUCCESS)
1351	return rcExit;
1352	}
1353	}
1354
1355	return parseError(pStrm, 0, "Unexpected end of file");
1356	}
1357
1358
1359	/**
1360	* Skips spaces and comments, returning the next character.
1361	*
1362	* @returns Next non-space-non-comment character. ~(unsigned)0 on EOF or
1363	* failure.
1364	* @param pStrm The stream.
1365	*/
1366	static unsigned parseGetNextNonSpaceNonCommentCh(PSCMSTREAM pStrm)
1367	{
1368	unsigned ch;
1369	while ((ch = ScmStreamGetCh(pStrm)) != ~(unsigned)0)
1370	{
1371	if (!RT_C_IS_SPACE(ch) && ch != '/')
1372	return ch;
1373	if (ch == '/')
1374	{
1375	ch = ScmStreamGetCh(pStrm);
1376	RTEXITCODE rcExit;
1377	if (ch == '*')
1378	rcExit = parseMultiLineComment(pStrm);
1379	else if (ch == '/')
1380	rcExit = parseOneLineComment(pStrm);
1381	else
1382	rcExit = parseError(pStrm, 2, "Unexpected character");
1383	if (rcExit != RTEXITCODE_SUCCESS)
1384	return ~(unsigned)0;
1385	}
1386	}
1387
1388	parseError(pStrm, 0, "Unexpected end of file");
1389	return ~(unsigned)0;
1390	}
1391
1392
1393	/**
1394	* Get the next non-space-non-comment character on a preprocessor line.
1395	*
1396	* @returns The next character. On error message and ~(unsigned)0.
1397	* @param pStrm The stream.
1398	*/
1399	static unsigned parseGetNextNonSpaceNonCommentChOnPpLine(PSCMSTREAM pStrm)
1400	{
1401	size_t off = ScmStreamTell(pStrm) - 1;
1402	unsigned ch;
1403	while ((ch = ScmStreamGetCh(pStrm)) != ~(unsigned)0)
1404	{
1405	if (RT_C_IS_SPACE(ch))
1406	{
1407	if (ch == '\n' \|\| ch == '\r')
1408	{
1409	parseErrorAbs(pStrm, off, "Invalid preprocessor statement");
1410	break;
1411	}
1412	}
1413	else if (ch == '\\')
1414	{
1415	size_t off2 = ScmStreamTell(pStrm) - 1;
1416	ch = ScmStreamGetCh(pStrm);
1417	if (ch == '\r')
1418	ch = ScmStreamGetCh(pStrm);
1419	if (ch != '\n')
1420	{
1421	parseErrorAbs(pStrm, off2, "Expected new line");
1422	break;
1423	}
1424	}
1425	else
1426	return ch;
1427	}
1428	return ~(unsigned)0;
1429	}
1430
1431
1432
1433	/**
1434	* Skips spaces and comments.
1435	*
1436	* @returns Same as ScmStreamCGetWord
1437	* @param pStrm The stream..
1438	* @param pcchWord Where to return the length.
1439	*/
1440	static const char parseGetNextCWord(PSCMSTREAM pStrm, size_t pcchWord)
1441	{
1442	if (parseSkipSpacesAndComments(pStrm) != RTEXITCODE_SUCCESS)
1443	return NULL;
1444	return ScmStreamCGetWord(pStrm, pcchWord);
1445	}
1446
1447
1448
1449	/**
1450	* Parses interface stability.
1451	*
1452	* @returns Interface stability if parsed correctly, otherwise error message and
1453	* kVTGStability_Invalid.
1454	* @param pStrm The stream.
1455	* @param ch The first character in the stability spec.
1456	*/
1457	static kVTGStability parseStability(PSCMSTREAM pStrm, unsigned ch)
1458	{
1459	switch (ch)
1460	{
1461	case 'E':
1462	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("External")))
1463	return kVTGStability_External;
1464	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Evolving")))
1465	return kVTGStability_Evolving;
1466	break;
1467	case 'I':
1468	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Internal")))
1469	return kVTGStability_Internal;
1470	break;
1471	case 'O':
1472	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Obsolete")))
1473	return kVTGStability_Obsolete;
1474	break;
1475	case 'P':
1476	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Private")))
1477	return kVTGStability_Private;
1478	break;
1479	case 'S':
1480	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Stable")))
1481	return kVTGStability_Stable;
1482	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Standard")))
1483	return kVTGStability_Standard;
1484	break;
1485	case 'U':
1486	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Unstable")))
1487	return kVTGStability_Unstable;
1488	break;
1489	}
1490	parseError(pStrm, 1, "Unknown stability specifier");
1491	return kVTGStability_Invalid;
1492	}
1493
1494
1495	/**
1496	* Parses data depndency class.
1497	*
1498	* @returns Data dependency class if parsed correctly, otherwise error message
1499	* and kVTGClass_Invalid.
1500	* @param pStrm The stream.
1501	* @param ch The first character in the stability spec.
1502	*/
1503	static kVTGClass parseDataDepClass(PSCMSTREAM pStrm, unsigned ch)
1504	{
1505	switch (ch)
1506	{
1507	case 'C':
1508	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Common")))
1509	return kVTGClass_Common;
1510	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Cpu")))
1511	return kVTGClass_Cpu;
1512	break;
1513	case 'G':
1514	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Group")))
1515	return kVTGClass_Group;
1516	break;
1517	case 'I':
1518	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Isa")))
1519	return kVTGClass_Isa;
1520	break;
1521	case 'P':
1522	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Platform")))
1523	return kVTGClass_Platform;
1524	break;
1525	case 'U':
1526	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("Unknown")))
1527	return kVTGClass_Unknown;
1528	break;
1529	}
1530	parseError(pStrm, 1, "Unknown data dependency class specifier");
1531	return kVTGClass_Invalid;
1532	}
1533
1534	/**
1535	* Parses a pragma D attributes statement.
1536	*
1537	* @returns Suitable exit code, errors message already written on failure.
1538	* @param pStrm The stream.
1539	*/
1540	static RTEXITCODE parsePragmaDAttributes(PSCMSTREAM pStrm)
1541	{
1542	/*
1543	* "CodeStability/DataStability/DataDepClass" - no spaces allowed.
1544	*/
1545	unsigned ch = parseGetNextNonSpaceNonCommentChOnPpLine(pStrm);
1546	if (ch == ~(unsigned)0)
1547	return RTEXITCODE_FAILURE;
1548
1549	kVTGStability enmCode = parseStability(pStrm, ch);
1550	if (enmCode == kVTGStability_Invalid)
1551	return RTEXITCODE_FAILURE;
1552	ch = ScmStreamGetCh(pStrm);
1553	if (ch != '/')
1554	return parseError(pStrm, 1, "Expected '/' following the code stability specifier");
1555
1556	kVTGStability enmData = parseStability(pStrm, ScmStreamGetCh(pStrm));
1557	if (enmData == kVTGStability_Invalid)
1558	return RTEXITCODE_FAILURE;
1559	ch = ScmStreamGetCh(pStrm);
1560	if (ch != '/')
1561	return parseError(pStrm, 1, "Expected '/' following the data stability specifier");
1562
1563	kVTGClass enmDataDep = parseDataDepClass(pStrm, ScmStreamGetCh(pStrm));
1564	if (enmDataDep == kVTGClass_Invalid)
1565	return RTEXITCODE_FAILURE;
1566
1567	/*
1568	* Expecting 'provider' followed by the name of an provider defined earlier.
1569	*/
1570	ch = parseGetNextNonSpaceNonCommentChOnPpLine(pStrm);
1571	if (ch == ~(unsigned)0)
1572	return RTEXITCODE_FAILURE;
1573	if (ch != 'p' \|\| !ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("provider")))
1574	return parseError(pStrm, 1, "Expected 'provider'");
1575
1576	size_t cchName;
1577	const char *pszName = parseGetNextCWord(pStrm, &cchName);
1578	if (!pszName)
1579	return parseError(pStrm, 1, "Expected provider name");
1580
1581	PVTGPROVIDER pProv;
1582	RTListForEach(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry)
1583	{
1584	if ( !strncmp(pProv->pszName, pszName, cchName)
1585	&& pProv->pszName[cchName] == '\0')
1586	break;
1587	}
1588	if (RTListNodeIsDummy(&g_ProviderHead, pProv, VTGPROVIDER, ListEntry))
1589	return parseError(pStrm, cchName, "Provider not found");
1590
1591	/*
1592	* Which aspect of the provider?
1593	*/
1594	size_t cchAspect;
1595	const char *pszAspect = parseGetNextCWord(pStrm, &cchAspect);
1596	if (!pszAspect)
1597	return parseError(pStrm, 1, "Expected provider aspect");
1598
1599	PVTGATTRS pAttrs;
1600	if (cchAspect == 8 && !memcmp(pszAspect, "provider", 8))
1601	pAttrs = &pProv->AttrSelf;
1602	else if (cchAspect == 8 && !memcmp(pszAspect, "function", 8))
1603	pAttrs = &pProv->AttrFunctions;
1604	else if (cchAspect == 6 && !memcmp(pszAspect, "module", 6))
1605	pAttrs = &pProv->AttrModules;
1606	else if (cchAspect == 4 && !memcmp(pszAspect, "name", 4))
1607	pAttrs = &pProv->AttrName;
1608	else if (cchAspect == 4 && !memcmp(pszAspect, "args", 4))
1609	pAttrs = &pProv->AttrArguments;
1610	else
1611	return parseError(pStrm, cchAspect, "Unknown aspect");
1612
1613	if (pAttrs->enmCode != kVTGStability_Invalid)
1614	return parseError(pStrm, cchAspect, "You have already specified these attributes");
1615
1616	pAttrs->enmCode = enmCode;
1617	pAttrs->enmData = enmData;
1618	pAttrs->enmDataDep = enmDataDep;
1619	return RTEXITCODE_SUCCESS;
1620	}
1621
1622	/**
1623	* Parses a D pragma statement.
1624	*
1625	* @returns Suitable exit code, errors message already written on failure.
1626	* @param pStrm The stream.
1627	*/
1628	static RTEXITCODE parsePragma(PSCMSTREAM pStrm)
1629	{
1630	RTEXITCODE rcExit;
1631	unsigned ch = parseGetNextNonSpaceNonCommentChOnPpLine(pStrm);
1632	if (ch == ~(unsigned)0)
1633	rcExit = RTEXITCODE_FAILURE;
1634	else if (ch == 'D' && ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("D")))
1635	{
1636	ch = parseGetNextNonSpaceNonCommentChOnPpLine(pStrm);
1637	if (ch == ~(unsigned)0)
1638	rcExit = RTEXITCODE_FAILURE;
1639	else if (ch == 'a' && ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("attributes")))
1640	rcExit = parsePragmaDAttributes(pStrm);
1641	else
1642	rcExit = parseError(pStrm, 1, "Unknown pragma D");
1643	}
1644	else
1645	rcExit = parseError(pStrm, 1, "Unknown pragma");
1646	return rcExit;
1647	}
1648
1649
1650	/**
1651	* Classifies the given type expression.
1652	*
1653	* @return Type flags.
1654	* @param pszType The type expression.
1655	*/
1656	static uint32_t parseTypeExpression(const char *pszType)
1657	{
1658	size_t cchType = strlen(pszType);
1659	#define MY_STRMATCH(a_sz) (cchType == sizeof(a_sz) - 1 && !memcmp(a_sz, pszType, sizeof(a_sz) - 1))
1660
1661	/*
1662	* Try detect pointers.
1663	*/
1664	if (pszType[cchType - 1] == '*')
1665	{
1666	if (MY_STRMATCH("const char *")) return VTG_TYPE_POINTER \| VTG_TYPE_CONST_CHAR_PTR;
1667	return VTG_TYPE_POINTER;
1668	}
1669	if (pszType[cchType - 1] == '&')
1670	{
1671	RTMsgWarning("Please avoid using references like '%s' for probe arguments!", pszType);
1672	return VTG_TYPE_POINTER;
1673	}
1674
1675	/*
1676	* Standard integer types and IPRT variants.
1677	* It's important that we catch all types larger than 32-bit here or we'll
1678	* screw up the probe argument handling.
1679	*/
1680	if (MY_STRMATCH("int")) return VTG_TYPE_FIXED_SIZED \| sizeof(int) \| VTG_TYPE_SIGNED;
1681	if (MY_STRMATCH("uintptr_t")) return VTG_TYPE_HC_ARCH_SIZED \| VTG_TYPE_UNSIGNED;
1682	if (MY_STRMATCH("intptr_t")) return VTG_TYPE_HC_ARCH_SIZED \| VTG_TYPE_SIGNED;
1683
1684	//if (MY_STRMATCH("uint128_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint128_t) \| VTG_TYPE_UNSIGNED;
1685	if (MY_STRMATCH("uint64_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint64_t) \| VTG_TYPE_UNSIGNED;
1686	if (MY_STRMATCH("uint32_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint32_t) \| VTG_TYPE_UNSIGNED;
1687	if (MY_STRMATCH("uint16_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint16_t) \| VTG_TYPE_UNSIGNED;
1688	if (MY_STRMATCH("uint8_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint8_t) \| VTG_TYPE_UNSIGNED;
1689
1690	//if (MY_STRMATCH("int128_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(int128_t) \| VTG_TYPE_SIGNED;
1691	if (MY_STRMATCH("int64_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(int64_t) \| VTG_TYPE_SIGNED;
1692	if (MY_STRMATCH("int32_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(int32_t) \| VTG_TYPE_SIGNED;
1693	if (MY_STRMATCH("int16_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(int16_t) \| VTG_TYPE_SIGNED;
1694	if (MY_STRMATCH("int8_t")) return VTG_TYPE_FIXED_SIZED \| sizeof(int8_t) \| VTG_TYPE_SIGNED;
1695
1696	if (MY_STRMATCH("RTUINT64U")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint64_t) \| VTG_TYPE_UNSIGNED;
1697	if (MY_STRMATCH("RTUINT32U")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint32_t) \| VTG_TYPE_UNSIGNED;
1698	if (MY_STRMATCH("RTUINT16U")) return VTG_TYPE_FIXED_SIZED \| sizeof(uint16_t) \| VTG_TYPE_UNSIGNED;
1699
1700	if (MY_STRMATCH("RTMSINTERVAL")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTMSINTERVAL) \| VTG_TYPE_UNSIGNED;
1701	if (MY_STRMATCH("RTTIMESPEC")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTTIMESPEC) \| VTG_TYPE_SIGNED;
1702	if (MY_STRMATCH("RTPROCESS")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTPROCESS) \| VTG_TYPE_UNSIGNED;
1703	if (MY_STRMATCH("RTHCPHYS")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTHCPHYS) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_PHYS;
1704
1705	if (MY_STRMATCH("RTR3PTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3;
1706	if (MY_STRMATCH("RTR0PTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R0;
1707	if (MY_STRMATCH("RTRCPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_RC;
1708	if (MY_STRMATCH("RTHCPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0;
1709
1710	if (MY_STRMATCH("RTR3UINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_UNSIGNED;
1711	if (MY_STRMATCH("RTR0UINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R0 \| VTG_TYPE_UNSIGNED;
1712	if (MY_STRMATCH("RTRCUINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_RC \| VTG_TYPE_UNSIGNED;
1713	if (MY_STRMATCH("RTHCUINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0 \| VTG_TYPE_UNSIGNED;
1714
1715	if (MY_STRMATCH("RTR3INTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_SIGNED;
1716	if (MY_STRMATCH("RTR0INTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R0 \| VTG_TYPE_SIGNED;
1717	if (MY_STRMATCH("RTRCINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_RC \| VTG_TYPE_SIGNED;
1718	if (MY_STRMATCH("RTHCINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0 \| VTG_TYPE_SIGNED;
1719
1720	if (MY_STRMATCH("RTUINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0 \| VTG_TYPE_CTX_RC \| VTG_TYPE_UNSIGNED;
1721	if (MY_STRMATCH("RTINTPTR")) return VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0 \| VTG_TYPE_CTX_RC \| VTG_TYPE_SIGNED;
1722
1723	if (MY_STRMATCH("RTHCUINTREG")) return VTG_TYPE_HC_ARCH_SIZED \| VTG_TYPE_CTX_R3 \| VTG_TYPE_CTX_R0 \| VTG_TYPE_UNSIGNED;
1724	if (MY_STRMATCH("RTR3UINTREG")) return VTG_TYPE_HC_ARCH_SIZED \| VTG_TYPE_CTX_R3 \| VTG_TYPE_UNSIGNED;
1725	if (MY_STRMATCH("RTR0UINTREG")) return VTG_TYPE_HC_ARCH_SIZED \| VTG_TYPE_CTX_R3 \| VTG_TYPE_UNSIGNED;
1726
1727	if (MY_STRMATCH("RTGCUINTREG")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCUINTREG) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_CTX_GST;
1728	if (MY_STRMATCH("RTGCPTR")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPTR) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_CTX_GST;
1729	if (MY_STRMATCH("RTGCINTPTR")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCUINTPTR) \| VTG_TYPE_SIGNED \| VTG_TYPE_CTX_GST;
1730	if (MY_STRMATCH("RTGCPTR32")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPTR32) \| VTG_TYPE_SIGNED \| VTG_TYPE_CTX_GST;
1731	if (MY_STRMATCH("RTGCPTR64")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPTR64) \| VTG_TYPE_SIGNED \| VTG_TYPE_CTX_GST;
1732	if (MY_STRMATCH("RTGCPHYS")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPHYS) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_PHYS \| VTG_TYPE_CTX_GST;
1733	if (MY_STRMATCH("RTGCPHYS32")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPHYS32) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_PHYS \| VTG_TYPE_CTX_GST;
1734	if (MY_STRMATCH("RTGCPHYS64")) return VTG_TYPE_FIXED_SIZED \| sizeof(RTGCPHYS64) \| VTG_TYPE_UNSIGNED \| VTG_TYPE_PHYS \| VTG_TYPE_CTX_GST;
1735
1736	/*
1737	* The special VBox types.
1738	*/
1739	if (MY_STRMATCH("PVM")) return VTG_TYPE_POINTER;
1740	if (MY_STRMATCH("PVMCPU")) return VTG_TYPE_POINTER;
1741	if (MY_STRMATCH("PCPUMCTX")) return VTG_TYPE_POINTER;
1742
1743	/*
1744	* Preaching time.
1745	*/
1746	if ( MY_STRMATCH("unsigned long")
1747	\|\| MY_STRMATCH("unsigned long long")
1748	\|\| MY_STRMATCH("signed long")
1749	\|\| MY_STRMATCH("signed long long")
1750	\|\| MY_STRMATCH("long")
1751	\|\| MY_STRMATCH("long long")
1752	\|\| MY_STRMATCH("char")
1753	\|\| MY_STRMATCH("signed char")
1754	\|\| MY_STRMATCH("unsigned char")
1755	\|\| MY_STRMATCH("double")
1756	\|\| MY_STRMATCH("long double")
1757	\|\| MY_STRMATCH("float")
1758	)
1759	{
1760	RTMsgError("Please do NOT use the type '%s' for probe arguments!", pszType);
1761	g_cTypeErrors++;
1762	return 0;
1763	}
1764
1765	if ( MY_STRMATCH("unsigned")
1766	\|\| MY_STRMATCH("signed")
1767	\|\| MY_STRMATCH("signed int")
1768	\|\| MY_STRMATCH("unsigned int")
1769	\|\| MY_STRMATCH("short")
1770	\|\| MY_STRMATCH("signed short")
1771	\|\| MY_STRMATCH("unsigned short")
1772	)
1773	RTMsgWarning("Please avoid using the type '%s' for probe arguments!", pszType);
1774	if (MY_STRMATCH("unsigned")) return VTG_TYPE_FIXED_SIZED \| sizeof(int) \| VTG_TYPE_UNSIGNED;
1775	if (MY_STRMATCH("unsigned int")) return VTG_TYPE_FIXED_SIZED \| sizeof(int) \| VTG_TYPE_UNSIGNED;
1776	if (MY_STRMATCH("signed")) return VTG_TYPE_FIXED_SIZED \| sizeof(int) \| VTG_TYPE_SIGNED;
1777	if (MY_STRMATCH("signed int")) return VTG_TYPE_FIXED_SIZED \| sizeof(int) \| VTG_TYPE_SIGNED;
1778	if (MY_STRMATCH("short")) return VTG_TYPE_FIXED_SIZED \| sizeof(short) \| VTG_TYPE_SIGNED;
1779	if (MY_STRMATCH("signed short")) return VTG_TYPE_FIXED_SIZED \| sizeof(short) \| VTG_TYPE_SIGNED;
1780	if (MY_STRMATCH("unsigned short")) return VTG_TYPE_FIXED_SIZED \| sizeof(short) \| VTG_TYPE_UNSIGNED;
1781
1782	/*
1783	* What we haven't caught by now is either unknown to us or wrong.
1784	*/
1785	if (pszType[0] == 'P')
1786	{
1787	RTMsgError("Type '%s' looks like a pointer typedef, please do NOT use those "
1788	"but rather the non-pointer typedef or struct with '*'",
1789	pszType);
1790	g_cTypeErrors++;
1791	return VTG_TYPE_POINTER;
1792	}
1793
1794	RTMsgError("Don't know '%s' - please change or fix VBoxTpG", pszType);
1795	g_cTypeErrors++;
1796
1797	#undef MY_STRCMP
1798	return 0;
1799	}
1800
1801
1802	/**
1803	* Initializes the members of an argument.
1804	*
1805	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE+msg.
1806	* @param pProbe The probe.
1807	* @param pArg The argument.
1808	* @param pStrm The input stream (for errors).
1809	* @param pchType The type.
1810	* @param cchType The type length.
1811	* @param pchName The name.
1812	* @param cchName The name length.
1813	*/
1814	static RTEXITCODE parseInitArgument(PVTGPROBE pProbe, PVTGARG pArg, PSCMSTREAM pStrm,
1815	char pchType, size_t cchType, char pchName, size_t cchName)
1816	{
1817	Assert(!pArg->pszName); Assert(!pArg->pszTracerType); Assert(!pArg->pszCtxType); Assert(!pArg->fType);
1818
1819	pArg->pszArgPassingFmt = ", %s";
1820	pArg->pszName = RTStrDupN(pchName, cchName);
1821	pArg->pszTracerType = strtabInsertN(pchType, cchType);
1822	if (!pArg->pszTracerType \|\| !pArg->pszName)
1823	return parseError(pStrm, 1, "Out of memory");
1824	pArg->fType = parseTypeExpression(pArg->pszTracerType);
1825
1826	if ( (pArg->fType & VTG_TYPE_POINTER)
1827	&& !(g_fTypeContext & VTG_TYPE_CTX_R0) )
1828	{
1829	pArg->fType &= ~VTG_TYPE_POINTER;
1830	if ( !strcmp(pArg->pszTracerType, "struct VM *") \|\| !strcmp(pArg->pszTracerType, "PVM")
1831	\|\| !strcmp(pArg->pszTracerType, "struct VMCPU *") \|\| !strcmp(pArg->pszTracerType, "PVMCPU")
1832	\|\| !strcmp(pArg->pszTracerType, "struct CPUMCTX *") \|\| !strcmp(pArg->pszTracerType, "PCPUMCTX")
1833	)
1834	{
1835	pArg->fType \|= VTG_TYPE_CTX_POINTER \| VTG_TYPE_CTX_R0
1836	\| VTG_TYPE_FIXED_SIZED \| (g_cHostBits / 8)
1837	\| VTG_TYPE_AUTO_CONV_PTR;
1838	pArg->pszCtxType = RTStrDup("RTR0PTR");
1839
1840	if (!strcmp(pArg->pszTracerType, "struct VM *") \|\| !strcmp(pArg->pszTracerType, "PVM"))
1841	pArg->pszArgPassingFmt = ", VTG_VM_TO_R0(%s)";
1842	else if (!strcmp(pArg->pszTracerType, "struct VMCPU *") \|\| !strcmp(pArg->pszTracerType, "PVMCPU"))
1843	pArg->pszArgPassingFmt = ", VTG_VMCPU_TO_R0(%s)";
1844	else
1845	{
1846	PVTGARG pFirstArg = RTListGetFirst(&pProbe->ArgHead, VTGARG, ListEntry);
1847	if ( !pFirstArg
1848	\|\| pFirstArg == pArg
1849	\|\| strcmp(pFirstArg->pszName, "a_pVCpu")
1850	\|\| ( strcmp(pFirstArg->pszTracerType, "struct VMCPU *")
1851	&& strcmp(pFirstArg->pszTracerType, "PVMCPU *")) )
1852	return parseError(pStrm, 1, "The automatic ring-0 pointer conversion requires 'a_pVCpu' with type 'struct VMCPU *' as the first argument");
1853
1854	if (!strcmp(pArg->pszTracerType, "struct CPUMCTX *")\|\| !strcmp(pArg->pszTracerType, "PCPUMCTX"))
1855	pArg->pszArgPassingFmt = ", VTG_CPUMCTX_TO_R0(a_pVCpu, %s)";
1856	else
1857	pArg->pszArgPassingFmt = ", VBoxTpG-Is-Buggy!!";
1858	}
1859	}
1860	else
1861	{
1862	pArg->fType \|= VTG_TYPE_CTX_POINTER \| g_fTypeContext \| VTG_TYPE_FIXED_SIZED \| (g_cBits / 8);
1863	pArg->pszCtxType = RTStrDupN(pchType, cchType);
1864	}
1865	}
1866	else
1867	pArg->pszCtxType = RTStrDupN(pchType, cchType);
1868	if (!pArg->pszCtxType)
1869	return parseError(pStrm, 1, "Out of memory");
1870
1871	return RTEXITCODE_SUCCESS;
1872	}
1873
1874
1875	/**
1876	* Unmangles the probe name.
1877	*
1878	* This involves translating double underscore to dash.
1879	*
1880	* @returns Pointer to the unmangled name in the string table.
1881	* @param pszMangled The mangled name.
1882	*/
1883	static const char parseUnmangleProbeName(const char pszMangled)
1884	{
1885	size_t cchMangled = strlen(pszMangled);
1886	char pszTmp = (char )alloca(cchMangled + 2);
1887	const char *pszSrc = pszMangled;
1888	char *pszDst = pszTmp;
1889
1890	while (*pszSrc)
1891	{
1892	if (pszSrc[0] == '_' && pszSrc[1] == '_' && pszSrc[2] != '_')
1893	{
1894	*pszDst++ = '-';
1895	pszSrc += 2;
1896	}
1897	else
1898	pszDst++ = pszSrc++;
1899	}
1900	*pszDst = '\0';
1901
1902	return strtabInsertN(pszTmp, pszDst - pszTmp);
1903	}
1904
1905
1906	/**
1907	* Parses a D probe statement.
1908	*
1909	* @returns Suitable exit code, errors message already written on failure.
1910	* @param pStrm The stream.
1911	* @param pProv The provider being parsed.
1912	*/
1913	static RTEXITCODE parseProbe(PSCMSTREAM pStrm, PVTGPROVIDER pProv)
1914	{
1915	/*
1916	* Next up is a name followed by an opening parenthesis.
1917	*/
1918	size_t cchProbe;
1919	const char *pszProbe = parseGetNextCWord(pStrm, &cchProbe);
1920	if (!pszProbe)
1921	return parseError(pStrm, 1, "Expected a probe name starting with an alphabetical character");
1922	unsigned ch = parseGetNextNonSpaceNonCommentCh(pStrm);
1923	if (ch != '(')
1924	return parseError(pStrm, 1, "Expected '(' after the probe name");
1925
1926	/*
1927	* Create a probe instance.
1928	*/
1929	PVTGPROBE pProbe = (PVTGPROBE)RTMemAllocZ(sizeof(*pProbe));
1930	if (!pProbe)
1931	return parseError(pStrm, 0, "Out of memory");
1932	RTListInit(&pProbe->ArgHead);
1933	RTListAppend(&pProv->ProbeHead, &pProbe->ListEntry);
1934	pProbe->offArgList = UINT32_MAX;
1935	pProbe->pszMangledName = RTStrDupN(pszProbe, cchProbe);
1936	if (!pProbe->pszMangledName)
1937	return parseError(pStrm, 0, "Out of memory");
1938	pProbe->pszUnmangledName = parseUnmangleProbeName(pProbe->pszMangledName);
1939	if (!pProbe->pszUnmangledName)
1940	return parseError(pStrm, 0, "Out of memory");
1941
1942	/*
1943	* Parse loop for the argument.
1944	*/
1945	PVTGARG pArg = NULL;
1946	size_t cchName = 0;
1947	size_t cchArg = 0;
1948	char szArg[4096];
1949	for (;;)
1950	{
1951	ch = parseGetNextNonSpaceNonCommentCh(pStrm);
1952	switch (ch)
1953	{
1954	case ')':
1955	case ',':
1956	{
1957	/* commit the argument */
1958	if (pArg)
1959	{
1960	if (!cchName)
1961	return parseError(pStrm, 1, "Argument has no name");
1962	if (cchArg - cchName - 1 >= 128)
1963	return parseError(pStrm, 1, "Argument type too long");
1964	RTEXITCODE rcExit = parseInitArgument(pProbe, pArg, pStrm,
1965	szArg, cchArg - cchName - 1,
1966	&szArg[cchArg - cchName], cchName);
1967	if (rcExit != RTEXITCODE_SUCCESS)
1968	return rcExit;
1969	if (VTG_TYPE_IS_LARGE(pArg->fType))
1970	pProbe->fHaveLargeArgs = true;
1971	pArg = NULL;
1972	cchName = cchArg = 0;
1973	}
1974	if (ch == ')')
1975	{
1976	size_t off = ScmStreamTell(pStrm);
1977	ch = parseGetNextNonSpaceNonCommentCh(pStrm);
1978	if (ch != ';')
1979	return parseErrorAbs(pStrm, off, "Expected ';'");
1980	return RTEXITCODE_SUCCESS;
1981	}
1982	break;
1983	}
1984
1985	default:
1986	{
1987	size_t cchWord;
1988	const char *pszWord = ScmStreamCGetWordM1(pStrm, &cchWord);
1989	if (!pszWord)
1990	return parseError(pStrm, 0, "Expected argument");
1991	if (!pArg)
1992	{
1993	pArg = (PVTGARG)RTMemAllocZ(sizeof(*pArg));
1994	if (!pArg)
1995	return parseError(pStrm, 1, "Out of memory");
1996	RTListAppend(&pProbe->ArgHead, &pArg->ListEntry);
1997	pProbe->cArgs++;
1998
1999	if (cchWord + 1 > sizeof(szArg))
2000	return parseError(pStrm, 1, "Too long parameter declaration");
2001	memcpy(szArg, pszWord, cchWord);
2002	szArg[cchWord] = '\0';
2003	cchArg = cchWord;
2004	cchName = 0;
2005	}
2006	else
2007	{
2008	if (cchArg + 1 + cchWord + 1 > sizeof(szArg))
2009	return parseError(pStrm, 1, "Too long parameter declaration");
2010
2011	szArg[cchArg++] = ' ';
2012	memcpy(&szArg[cchArg], pszWord, cchWord);
2013	cchArg += cchWord;
2014	szArg[cchArg] = '\0';
2015	cchName = cchWord;
2016	}
2017	break;
2018	}
2019
2020	case '*':
2021	{
2022	if (!pArg)
2023	return parseError(pStrm, 1, "A parameter type does not start with an asterix");
2024	if (cchArg + sizeof(" *") >= sizeof(szArg))
2025	return parseError(pStrm, 1, "Too long parameter declaration");
2026	szArg[cchArg++] = ' ';
2027	szArg[cchArg++] = '*';
2028	szArg[cchArg ] = '\0';
2029	cchName = 0;
2030	break;
2031	}
2032
2033	case ~(unsigned)0:
2034	return parseError(pStrm, 0, "Missing closing ')' on probe");
2035	}
2036	}
2037	}
2038
2039	/**
2040	* Parses a D provider statement.
2041	*
2042	* @returns Suitable exit code, errors message already written on failure.
2043	* @param pStrm The stream.
2044	*/
2045	static RTEXITCODE parseProvider(PSCMSTREAM pStrm)
2046	{
2047	/*
2048	* Next up is a name followed by a curly bracket. Ignore comments.
2049	*/
2050	RTEXITCODE rcExit = parseSkipSpacesAndComments(pStrm);
2051	if (rcExit != RTEXITCODE_SUCCESS)
2052	return parseError(pStrm, 1, "Expected a provider name starting with an alphabetical character");
2053	size_t cchName;
2054	const char *pszName = ScmStreamCGetWord(pStrm, &cchName);
2055	if (!pszName)
2056	return parseError(pStrm, 0, "Bad provider name");
2057	if (RT_C_IS_DIGIT(pszName[cchName - 1]))
2058	return parseError(pStrm, 1, "A provider name cannot end with digit");
2059
2060	unsigned ch = parseGetNextNonSpaceNonCommentCh(pStrm);
2061	if (ch != '{')
2062	return parseError(pStrm, 1, "Expected '{' after the provider name");
2063
2064	/*
2065	* Create a provider instance.
2066	*/
2067	PVTGPROVIDER pProv = (PVTGPROVIDER)RTMemAllocZ(sizeof(*pProv));
2068	if (!pProv)
2069	return parseError(pStrm, 0, "Out of memory");
2070	RTListInit(&pProv->ProbeHead);
2071	RTListAppend(&g_ProviderHead, &pProv->ListEntry);
2072	pProv->pszName = strtabInsertN(pszName, cchName);
2073	if (!pProv->pszName)
2074	return parseError(pStrm, 0, "Out of memory");
2075
2076	/*
2077	* Parse loop.
2078	*/
2079	for (;;)
2080	{
2081	ch = parseGetNextNonSpaceNonCommentCh(pStrm);
2082	switch (ch)
2083	{
2084	case 'p':
2085	if (ScmStreamCMatchingWordM1(pStrm, RT_STR_TUPLE("probe")))
2086	rcExit = parseProbe(pStrm, pProv);
2087	else
2088	rcExit = parseError(pStrm, 1, "Unexpected character");
2089	break;
2090
2091	case '}':
2092	{
2093	size_t off = ScmStreamTell(pStrm);
2094	ch = parseGetNextNonSpaceNonCommentCh(pStrm);
2095	if (ch == ';')
2096	return RTEXITCODE_SUCCESS;
2097	rcExit = parseErrorAbs(pStrm, off, "Expected ';'");
2098	break;
2099	}
2100
2101	case ~(unsigned)0:
2102	rcExit = parseError(pStrm, 0, "Missing closing '}' on provider");
2103	break;
2104
2105	default:
2106	rcExit = parseError(pStrm, 1, "Unexpected character");
2107	break;
2108	}
2109	if (rcExit != RTEXITCODE_SUCCESS)
2110	return rcExit;
2111	}
2112	}
2113
2114
2115	static RTEXITCODE parseScript(const char *pszScript)
2116	{
2117	SCMSTREAM Strm;
2118	int rc = ScmStreamInitForReading(&Strm, pszScript);
2119	if (RT_FAILURE(rc))
2120	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to open & read '%s' into memory: %Rrc", pszScript, rc);
2121	if (g_cVerbosity > 0)
2122	RTMsgInfo("Parsing '%s'...", pszScript);
2123
2124	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
2125	unsigned ch;
2126	while ((ch = ScmStreamGetCh(&Strm)) != ~(unsigned)0)
2127	{
2128	if (RT_C_IS_SPACE(ch))
2129	continue;
2130	switch (ch)
2131	{
2132	case '/':
2133	ch = ScmStreamGetCh(&Strm);
2134	if (ch == '*')
2135	rcExit = parseMultiLineComment(&Strm);
2136	else if (ch == '/')
2137	rcExit = parseOneLineComment(&Strm);
2138	else
2139	rcExit = parseError(&Strm, 2, "Unexpected character");
2140	break;
2141
2142	case 'p':
2143	if (ScmStreamCMatchingWordM1(&Strm, RT_STR_TUPLE("provider")))
2144	rcExit = parseProvider(&Strm);
2145	else
2146	rcExit = parseError(&Strm, 1, "Unexpected character");
2147	break;
2148
2149	case '#':
2150	{
2151	ch = parseGetNextNonSpaceNonCommentChOnPpLine(&Strm);
2152	if (ch == ~(unsigned)0)
2153	rcExit = RTEXITCODE_FAILURE;
2154	else if (ch == 'p' && ScmStreamCMatchingWordM1(&Strm, RT_STR_TUPLE("pragma")))
2155	rcExit = parsePragma(&Strm);
2156	else
2157	rcExit = parseError(&Strm, 1, "Unsupported preprocessor directive");
2158	break;
2159	}
2160
2161	default:
2162	rcExit = parseError(&Strm, 1, "Unexpected character");
2163	break;
2164	}
2165	if (rcExit != RTEXITCODE_SUCCESS)
2166	return rcExit;
2167	}
2168
2169	ScmStreamDelete(&Strm);
2170	if (g_cVerbosity > 0 && rcExit == RTEXITCODE_SUCCESS)
2171	RTMsgInfo("Successfully parsed '%s'.", pszScript);
2172	return rcExit;
2173	}
2174
2175
2176	/**
2177	* Parses the arguments.
2178	*/
2179	static RTEXITCODE parseArguments(int argc, char **argv)
2180	{
2181	/*
2182	* Set / Adjust defaults.
2183	*/
2184	int rc = RTPathAbs(g_pszAssemblerIncVal, g_szAssemblerIncVal, sizeof(g_szAssemblerIncVal) - 1);
2185	if (RT_FAILURE(rc))
2186	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTPathAbs failed: %Rrc", rc);
2187	strcat(g_szAssemblerIncVal, "/");
2188	g_pszAssemblerIncVal = g_szAssemblerIncVal;
2189
2190	/*
2191	* Option config.
2192	*/
2193	enum
2194	{
2195	kVBoxTpGOpt_32Bit = 1000,
2196	kVBoxTpGOpt_64Bit,
2197	kVBoxTpGOpt_GenerateWrapperHeader,
2198	kVBoxTpGOpt_Assembler,
2199	kVBoxTpGOpt_AssemblerFmtOpt,
2200	kVBoxTpGOpt_AssemblerFmtVal,
2201	kVBoxTpGOpt_AssemblerOutputOpt,
2202	kVBoxTpGOpt_AssemblerOption,
2203	kVBoxTpGOpt_Pic,
2204	kVBoxTpGOpt_ProbeFnName,
2205	kVBoxTpGOpt_ProbeFnImported,
2206	kVBoxTpGOpt_ProbeFnNotImported,
2207	kVBoxTpGOpt_Host32Bit,
2208	kVBoxTpGOpt_Host64Bit,
2209	kVBoxTpGOpt_RawModeContext,
2210	kVBoxTpGOpt_Ring0Context,
2211	kVBoxTpGOpt_Ring0ContextAgnostic,
2212	kVBoxTpGOpt_Ring3Context,
2213	kVBoxTpGOpt_End
2214	};
2215
2216	static RTGETOPTDEF const s_aOpts[] =
2217	{
2218	/* dtrace w/ long options */
2219	{ "-32", kVBoxTpGOpt_32Bit, RTGETOPT_REQ_NOTHING },
2220	{ "-64", kVBoxTpGOpt_64Bit, RTGETOPT_REQ_NOTHING },
2221	{ "--apply-cpp", 'C', RTGETOPT_REQ_NOTHING },
2222	{ "--generate-obj", 'G', RTGETOPT_REQ_NOTHING },
2223	{ "--generate-header", 'h', RTGETOPT_REQ_NOTHING },
2224	{ "--output", 'o', RTGETOPT_REQ_STRING },
2225	{ "--script", 's', RTGETOPT_REQ_STRING },
2226	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
2227	/* our stuff */
2228	{ "--generate-wrapper-header", kVBoxTpGOpt_GenerateWrapperHeader, RTGETOPT_REQ_NOTHING },
2229	{ "--assembler", kVBoxTpGOpt_Assembler, RTGETOPT_REQ_STRING },
2230	{ "--assembler-fmt-opt", kVBoxTpGOpt_AssemblerFmtOpt, RTGETOPT_REQ_STRING },
2231	{ "--assembler-fmt-val", kVBoxTpGOpt_AssemblerFmtVal, RTGETOPT_REQ_STRING },
2232	{ "--assembler-output-opt", kVBoxTpGOpt_AssemblerOutputOpt, RTGETOPT_REQ_STRING },
2233	{ "--assembler-option", kVBoxTpGOpt_AssemblerOption, RTGETOPT_REQ_STRING },
2234	{ "--pic", kVBoxTpGOpt_Pic, RTGETOPT_REQ_NOTHING },
2235	{ "--probe-fn-name", kVBoxTpGOpt_ProbeFnName, RTGETOPT_REQ_STRING },
2236	{ "--probe-fn-imported", kVBoxTpGOpt_ProbeFnImported, RTGETOPT_REQ_NOTHING },
2237	{ "--probe-fn-not-imported", kVBoxTpGOpt_ProbeFnNotImported, RTGETOPT_REQ_NOTHING },
2238	{ "--host-32-bit", kVBoxTpGOpt_Host32Bit, RTGETOPT_REQ_NOTHING },
2239	{ "--host-64-bit", kVBoxTpGOpt_Host64Bit, RTGETOPT_REQ_NOTHING },
2240	{ "--raw-mode-context", kVBoxTpGOpt_RawModeContext, RTGETOPT_REQ_NOTHING },
2241	{ "--ring-0-context", kVBoxTpGOpt_Ring0Context, RTGETOPT_REQ_NOTHING },
2242	{ "--ring-0-context-agnostic", kVBoxTpGOpt_Ring0ContextAgnostic, RTGETOPT_REQ_NOTHING },
2243	{ "--ring-3-context", kVBoxTpGOpt_Ring3Context, RTGETOPT_REQ_NOTHING },
2244	/** @todo We're missing a bunch of assembler options! */
2245	};
2246
2247	RTGETOPTUNION ValueUnion;
2248	RTGETOPTSTATE GetOptState;
2249	rc = RTGetOptInit(&GetOptState, argc, argv, &s_aOpts[0], RT_ELEMENTS(s_aOpts), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST);
2250	AssertReleaseRCReturn(rc, RTEXITCODE_FAILURE);
2251
2252	/*
2253	* Process the options.
2254	*/
2255	while ((rc = RTGetOpt(&GetOptState, &ValueUnion)) != 0)
2256	{
2257	switch (rc)
2258	{
2259	/*
2260	* DTrace compatible options.
2261	*/
2262	case kVBoxTpGOpt_32Bit:
2263	g_cHostBits = g_cBits = 32;
2264	g_pszAssemblerFmtVal = g_szAssemblerFmtVal32;
2265	break;
2266
2267	case kVBoxTpGOpt_64Bit:
2268	g_cHostBits = g_cBits = 64;
2269	g_pszAssemblerFmtVal = g_szAssemblerFmtVal64;
2270	break;
2271
2272	case 'C':
2273	g_fApplyCpp = true;
2274	RTMsgWarning("Ignoring the -C option - no preprocessing of the D script will be performed");
2275	break;
2276
2277	case 'G':
2278	if ( g_enmAction != kVBoxTpGAction_Nothing
2279	&& g_enmAction != kVBoxTpGAction_GenerateObject)
2280	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "-G does not mix with -h or --generate-wrapper-header");
2281	g_enmAction = kVBoxTpGAction_GenerateObject;
2282	break;
2283
2284	case 'h':
2285	if (!strcmp(GetOptState.pDef->pszLong, "--generate-header"))
2286	{
2287	if ( g_enmAction != kVBoxTpGAction_Nothing
2288	&& g_enmAction != kVBoxTpGAction_GenerateHeader)
2289	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "-h does not mix with -G or --generate-wrapper-header");
2290	g_enmAction = kVBoxTpGAction_GenerateHeader;
2291	}
2292	else
2293	{
2294	/* --help or similar */
2295	RTPrintf("VirtualBox Tracepoint Generator\n"
2296	"\n"
2297	"Usage: %s [options]\n"
2298	"\n"
2299	"Options:\n", RTProcShortName());
2300	for (size_t i = 0; i < RT_ELEMENTS(s_aOpts); i++)
2301	if ((unsigned)s_aOpts[i].iShort < 128)
2302	RTPrintf(" -%c,%s\n", s_aOpts[i].iShort, s_aOpts[i].pszLong);
2303	else
2304	RTPrintf(" %s\n", s_aOpts[i].pszLong);
2305	return RTEXITCODE_SUCCESS;
2306	}
2307	break;
2308
2309	case 'o':
2310	if (g_pszOutput)
2311	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Output file is already set to '%s'", g_pszOutput);
2312	g_pszOutput = ValueUnion.psz;
2313	break;
2314
2315	case 's':
2316	if (g_pszScript)
2317	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Script file is already set to '%s'", g_pszScript);
2318	g_pszScript = ValueUnion.psz;
2319	break;
2320
2321	case 'v':
2322	g_cVerbosity++;
2323	break;
2324
2325	case 'V':
2326	{
2327	/* The following is assuming that svn does it's job here. */
2328	static const char s_szRev[] = "$Revision: 56310 $";
2329	const char *psz = RTStrStripL(strchr(s_szRev, ' '));
2330	RTPrintf("r%.*s\n", strchr(psz, ' ') - psz, psz);
2331	return RTEXITCODE_SUCCESS;
2332	}
2333
2334	case VINF_GETOPT_NOT_OPTION:
2335	if (g_enmAction == kVBoxTpGAction_GenerateObject)
2336	break; /* object files, ignore them. */
2337	return RTGetOptPrintError(rc, &ValueUnion);
2338
2339
2340	/*
2341	* Our options.
2342	*/
2343	case kVBoxTpGOpt_GenerateWrapperHeader:
2344	if ( g_enmAction != kVBoxTpGAction_Nothing
2345	&& g_enmAction != kVBoxTpGAction_GenerateWrapperHeader)
2346	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "--generate-wrapper-header does not mix with -h or -G");
2347	g_enmAction = kVBoxTpGAction_GenerateWrapperHeader;
2348	break;
2349
2350	case kVBoxTpGOpt_Assembler:
2351	g_pszAssembler = ValueUnion.psz;
2352	break;
2353
2354	case kVBoxTpGOpt_AssemblerFmtOpt:
2355	g_pszAssemblerFmtOpt = ValueUnion.psz;
2356	break;
2357
2358	case kVBoxTpGOpt_AssemblerFmtVal:
2359	g_pszAssemblerFmtVal = ValueUnion.psz;
2360	break;
2361
2362	case kVBoxTpGOpt_AssemblerOutputOpt:
2363	g_pszAssemblerOutputOpt = ValueUnion.psz;
2364	break;
2365
2366	case kVBoxTpGOpt_AssemblerOption:
2367	if (g_cAssemblerOptions >= RT_ELEMENTS(g_apszAssemblerOptions))
2368	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "Too many assembly options (max %u)", RT_ELEMENTS(g_apszAssemblerOptions));
2369	g_apszAssemblerOptions[g_cAssemblerOptions] = ValueUnion.psz;
2370	g_cAssemblerOptions++;
2371	break;
2372
2373	case kVBoxTpGOpt_Pic:
2374	g_fPic = true;
2375	break;
2376
2377	case kVBoxTpGOpt_ProbeFnName:
2378	g_pszProbeFnName = ValueUnion.psz;
2379	break;
2380
2381	case kVBoxTpGOpt_ProbeFnImported:
2382	g_fProbeFnImported = true;
2383	break;
2384
2385	case kVBoxTpGOpt_ProbeFnNotImported:
2386	g_fProbeFnImported = false;
2387	break;
2388
2389	case kVBoxTpGOpt_Host32Bit:
2390	g_cHostBits = 32;
2391	break;
2392
2393	case kVBoxTpGOpt_Host64Bit:
2394	g_cHostBits = 64;
2395	break;
2396
2397	case kVBoxTpGOpt_RawModeContext:
2398	g_fTypeContext = VTG_TYPE_CTX_RC;
2399	g_pszContextDefine = "IN_RC";
2400	g_pszContextDefine2 = NULL;
2401	break;
2402
2403	case kVBoxTpGOpt_Ring0Context:
2404	g_fTypeContext = VTG_TYPE_CTX_R0;
2405	g_pszContextDefine = "IN_RING0";
2406	g_pszContextDefine2 = NULL;
2407	break;
2408
2409	case kVBoxTpGOpt_Ring0ContextAgnostic:
2410	g_fTypeContext = VTG_TYPE_CTX_R0;
2411	g_pszContextDefine = "IN_RING0_AGNOSTIC";
2412	g_pszContextDefine2 = "IN_RING0";
2413	break;
2414
2415	case kVBoxTpGOpt_Ring3Context:
2416	g_fTypeContext = VTG_TYPE_CTX_R3;
2417	g_pszContextDefine = "IN_RING3";
2418	g_pszContextDefine2 = NULL;
2419	break;
2420
2421
2422	/*
2423	* Errors and bugs.
2424	*/
2425	default:
2426	return RTGetOptPrintError(rc, &ValueUnion);
2427	}
2428	}
2429
2430	/*
2431	* Check that we've got all we need.
2432	*/
2433	if (g_enmAction == kVBoxTpGAction_Nothing)
2434	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "No action specified (-h, -G or --generate-wrapper-header)");
2435	if (!g_pszScript)
2436	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "No script file specified (-s)");
2437	if (!g_pszOutput)
2438	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "No output file specified (-o)");
2439
2440	return RTEXITCODE_SUCCESS;
2441	}
2442
2443
2444	int main(int argc, char **argv)
2445	{
2446	int rc = RTR3InitExe(argc, &argv, 0);
2447	if (RT_FAILURE(rc))
2448	return 1;
2449
2450	RTEXITCODE rcExit = parseArguments(argc, argv);
2451	if (rcExit == RTEXITCODE_SUCCESS)
2452	{
2453	/*
2454	* Parse the script.
2455	*/
2456	RTListInit(&g_ProviderHead);
2457	rcExit = parseScript(g_pszScript);
2458	if (rcExit == RTEXITCODE_SUCCESS)
2459	{
2460	/*
2461	* Take action.
2462	*/
2463	if (g_enmAction == kVBoxTpGAction_GenerateHeader)
2464	rcExit = generateFile(g_pszOutput, "header", generateHeader);
2465	else if (g_enmAction == kVBoxTpGAction_GenerateWrapperHeader)
2466	rcExit = generateFile(g_pszOutput, "wrapper header", generateWrapperHeader);
2467	else
2468	rcExit = generateObject(g_pszOutput, g_pszTempAsm);
2469	}
2470	}
2471
2472	if (rcExit == RTEXITCODE_SUCCESS && g_cTypeErrors > 0)
2473	rcExit = RTEXITCODE_FAILURE;
2474	return rcExit;
2475	}
2476

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source: vbox/trunk/src/bldprogs/VBoxTpG.cpp@ 56564

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