DBGCOps.cpp@ 45221

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1	/* $Id: DBGCOps.cpp 44528 2013-02-04 14:27:54Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Operators.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 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	#define LOG_GROUP LOG_GROUP_DBGC
23	#include <VBox/dbg.h>
24	#include <VBox/vmm/dbgf.h>
25	#include <VBox/param.h>
26	#include <VBox/err.h>
27	#include <VBox/log.h>
28
29	#include <iprt/assert.h>
30	#include <iprt/mem.h>
31	#include <iprt/string.h>
32
33	#include "DBGCInternal.h"
34
35
36	/*******************************************************************************
37	* Internal Functions *
38	*******************************************************************************/
39	static DECLCALLBACK(int) dbgcOpMinus(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
40	static DECLCALLBACK(int) dbgcOpPluss(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
41	static DECLCALLBACK(int) dbgcOpBooleanNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
42	static DECLCALLBACK(int) dbgcOpBitwiseNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
43	static DECLCALLBACK(int) dbgcOpVar(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
44
45	static DECLCALLBACK(int) dbgcOpAddrFar(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
46	static DECLCALLBACK(int) dbgcOpMult(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
47	static DECLCALLBACK(int) dbgcOpDiv(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
48	static DECLCALLBACK(int) dbgcOpMod(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
49	static DECLCALLBACK(int) dbgcOpAdd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
50	static DECLCALLBACK(int) dbgcOpSub(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
51	static DECLCALLBACK(int) dbgcOpBitwiseShiftLeft(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
52	static DECLCALLBACK(int) dbgcOpBitwiseShiftRight(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
53	static DECLCALLBACK(int) dbgcOpBitwiseAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
54	static DECLCALLBACK(int) dbgcOpBitwiseXor(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
55	static DECLCALLBACK(int) dbgcOpBitwiseOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
56	static DECLCALLBACK(int) dbgcOpBooleanAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
57	static DECLCALLBACK(int) dbgcOpBooleanOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
58	static DECLCALLBACK(int) dbgcOpRangeLength(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
59	static DECLCALLBACK(int) dbgcOpRangeLengthBytes(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
60	static DECLCALLBACK(int) dbgcOpRangeTo(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
61
62
63	/*******************************************************************************
64	* Defined Constants And Macros *
65	*******************************************************************************/
66	/**
67	* Generic implementation of a binary operator.
68	*
69	* @returns VINF_SUCCESS on success.
70	* @returns VBox evaluation / parsing error code on failure.
71	* The caller does the bitching.
72	* @param pDbgc Debugger console instance data.
73	* @param pArg1 The first argument.
74	* @param pArg2 The 2nd argument.
75	* @param pResult Where to store the result.
76	* @param Operator The C operator.
77	* @param fIsDiv Set if it's division and we need to check for zero on the
78	* right hand side.
79	*/
80	#define DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, Operator, fIsDiv) \
81	do \
82	{ \
83	if ((pArg1)->enmType == DBGCVAR_TYPE_STRING) \
84	return VERR_DBGC_PARSE_INVALID_OPERATION; \
85	\
86	/* Get the 64-bit right side value. */ \
87	uint64_t u64Right; \
88	int rc = dbgcOpHelperGetNumber((pDbgc), (pArg2), &u64Right); \
89	if ((fIsDiv) && RT_SUCCESS(rc) && !u64Right) /* div/0 kludge */ \
90	DBGCVAR_INIT_NUMBER((pResult), UINT64_MAX); \
91	else if (RT_SUCCESS(rc)) \
92	{ \
93	/* Apply it to the left hand side. */ \
94	if ((pArg1)->enmType == DBGCVAR_TYPE_SYMBOL) \
95	{ \
96	rc = dbgcSymbolGet((pDbgc), (pArg1)->u.pszString, DBGCVAR_TYPE_ANY, (pResult)); \
97	if (RT_FAILURE(rc)) \
98	return rc; \
99	} \
100	else \
101	(pResult) = (pArg1); \
102	switch ((pResult)->enmType) \
103	{ \
104	case DBGCVAR_TYPE_GC_FLAT: \
105	(pResult)->u.GCFlat = (pResult)->u.GCFlat Operator u64Right; \
106	break; \
107	case DBGCVAR_TYPE_GC_FAR: \
108	(pResult)->u.GCFar.off = (pResult)->u.GCFar.off Operator u64Right; \
109	break; \
110	case DBGCVAR_TYPE_GC_PHYS: \
111	(pResult)->u.GCPhys = (pResult)->u.GCPhys Operator u64Right; \
112	break; \
113	case DBGCVAR_TYPE_HC_FLAT: \
114	(pResult)->u.pvHCFlat = (void *)((uintptr_t)(pResult)->u.pvHCFlat Operator u64Right); \
115	break; \
116	case DBGCVAR_TYPE_HC_PHYS: \
117	(pResult)->u.HCPhys = (pResult)->u.HCPhys Operator u64Right; \
118	break; \
119	case DBGCVAR_TYPE_NUMBER: \
120	(pResult)->u.u64Number = (pResult)->u.u64Number Operator u64Right; \
121	break; \
122	default: \
123	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE; \
124	} \
125	} \
126	return rc; \
127	} while (0)
128
129
130	/**
131	* Switch the factors/whatever so we preserve pointers.
132	* Far pointers are considered more important that physical and flat pointers.
133	*
134	* @param pArg1 The left side argument. Input & output.
135	* @param pArg2 The right side argument. Input & output.
136	*/
137	#define DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2) \
138	do \
139	{ \
140	if ( DBGCVAR_ISPOINTER((pArg2)->enmType) \
141	&& ( !DBGCVAR_ISPOINTER((pArg1)->enmType) \
142	\|\| ( DBGCVAR_IS_FAR_PTR((pArg2)->enmType) \
143	&& !DBGCVAR_IS_FAR_PTR((pArg1)->enmType)))) \
144	{ \
145	PCDBGCVAR pTmp = (pArg1); \
146	(pArg2) = (pArg1); \
147	(pArg1) = pTmp; \
148	} \
149	} while (0)
150
151
152	/*******************************************************************************
153	* Global Variables *
154	*******************************************************************************/
155	/** Operators. */
156	const DBGCOP g_aDbgcOps[] =
157	{
158	/* szName is initialized as a 4 char array because of M$C elsewise optimizing it away in /Ox mode (the 'const char' vs 'char' problem). */
159	/* szName, cchName, fBinary, iPrecedence, pfnHandlerUnary, pfnHandlerBitwise */
160	{ {'-'}, 1, false, 1, dbgcOpMinus, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Unary minus." },
161	{ {'+'}, 1, false, 1, dbgcOpPluss, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Unary plus." },
162	{ {'!'}, 1, false, 1, dbgcOpBooleanNot, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Boolean not." },
163	{ {'~'}, 1, false, 1, dbgcOpBitwiseNot, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise complement." },
164	{ {':'}, 1, true, 2, NULL, dbgcOpAddrFar, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Far pointer." },
165	{ {'%'}, 1, false, 3, dbgcOpAddrFlat, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Flat address." },
166	{ {'%','%'}, 2, false, 3, dbgcOpAddrPhys, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Physical address." },
167	{ {'#'}, 1, false, 3, dbgcOpAddrHost, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Flat host address." },
168	{ {'#','%','%'}, 3, false, 3, dbgcOpAddrHostPhys, NULL, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Physical host address." },
169	{ {'$'}, 1, false, 3, dbgcOpVar, NULL, DBGCVAR_CAT_SYMBOL, DBGCVAR_CAT_ANY, "Reference a variable." },
170	{ {'@'}, 1, false, 3, dbgcOpRegister, NULL, DBGCVAR_CAT_SYMBOL, DBGCVAR_CAT_ANY, "Reference a register." },
171	{ {'*'}, 1, true, 10, NULL, dbgcOpMult, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Multiplication." },
172	{ {'/'}, 1, true, 11, NULL, dbgcOpDiv, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Division." },
173	{ {'m','o','d'}, 3, true, 12, NULL, dbgcOpMod, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Modulus." },
174	{ {'+'}, 1, true, 13, NULL, dbgcOpAdd, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Addition." },
175	{ {'-'}, 1, true, 14, NULL, dbgcOpSub, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Subtraction." },
176	{ {'<','<'}, 2, true, 15, NULL, dbgcOpBitwiseShiftLeft, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise left shift." },
177	{ {'>','>'}, 2, true, 16, NULL, dbgcOpBitwiseShiftRight, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise right shift." },
178	{ {'&'}, 1, true, 17, NULL, dbgcOpBitwiseAnd, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise and." },
179	{ {'^'}, 1, true, 18, NULL, dbgcOpBitwiseXor, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise exclusiv or." },
180	{ {'\|'}, 1, true, 19, NULL, dbgcOpBitwiseOr, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Bitwise inclusive or." },
181	{ {'&','&'}, 2, true, 20, NULL, dbgcOpBooleanAnd, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Boolean and." },
182	{ {'\|','\|'}, 2, true, 21, NULL, dbgcOpBooleanOr, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Boolean or." },
183	{ {'L'}, 1, true, 22, NULL, dbgcOpRangeLength, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Range elements." },
184	{ {'L','B'}, 2, true, 23, NULL, dbgcOpRangeLengthBytes, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Range bytes." },
185	{ {'T'}, 1, true, 24, NULL, dbgcOpRangeTo, DBGCVAR_CAT_ANY, DBGCVAR_CAT_ANY, "Range to." }
186	};
187
188	/** Number of operators in the operator array. */
189	const uint32_t g_cDbgcOps = RT_ELEMENTS(g_aDbgcOps);
190
191
192	/**
193	* Converts an argument to a number value.
194	*
195	* @returns VBox status code.
196	* @param pDbgc The DBGC instance.
197	* @param pArg The argument to convert.
198	* @param pu64Ret Where to return the value.
199	*/
200	static int dbgcOpHelperGetNumber(PDBGC pDbgc, PCDBGCVAR pArg, uint64_t *pu64Ret)
201	{
202	DBGCVAR Var = *pArg;
203	switch (Var.enmType)
204	{
205	case DBGCVAR_TYPE_GC_FLAT:
206	*pu64Ret = Var.u.GCFlat;
207	break;
208	case DBGCVAR_TYPE_GC_FAR:
209	*pu64Ret = Var.u.GCFar.off;
210	break;
211	case DBGCVAR_TYPE_GC_PHYS:
212	*pu64Ret = Var.u.GCPhys;
213	break;
214	case DBGCVAR_TYPE_HC_FLAT:
215	*pu64Ret = (uintptr_t)Var.u.pvHCFlat;
216	break;
217	case DBGCVAR_TYPE_HC_PHYS:
218	*pu64Ret = Var.u.HCPhys;
219	break;
220	case DBGCVAR_TYPE_NUMBER:
221	*pu64Ret = Var.u.u64Number;
222	break;
223	case DBGCVAR_TYPE_SYMBOL:
224	{
225	int rc = dbgcSymbolGet(pDbgc, Var.u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
226	if (RT_FAILURE(rc))
227	return rc;
228	/* fall thru */
229	}
230	case DBGCVAR_TYPE_STRING:
231	default:
232	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
233	}
234	return VINF_SUCCESS;
235	}
236
237
238	/**
239	* Minus (unary).
240	*
241	* @returns VINF_SUCCESS on success.
242	* @returns VBox evaluation / parsing error code on failure.
243	* The caller does the bitching.
244	* @param pDbgc Debugger console instance data.
245	* @param pArg The argument.
246	* @param pResult Where to store the result.
247	*/
248	static DECLCALLBACK(int) dbgcOpMinus(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
249	{
250	LogFlow(("dbgcOpMinus\n"));
251	pResult = pArg;
252	switch (pArg->enmType)
253	{
254	case DBGCVAR_TYPE_GC_FLAT:
255	pResult->u.GCFlat = -(RTGCINTPTR)pResult->u.GCFlat;
256	break;
257	case DBGCVAR_TYPE_GC_FAR:
258	pResult->u.GCFar.off = -(int32_t)pResult->u.GCFar.off;
259	break;
260	case DBGCVAR_TYPE_GC_PHYS:
261	pResult->u.GCPhys = (RTGCPHYS) -(int64_t)pResult->u.GCPhys;
262	break;
263	case DBGCVAR_TYPE_HC_FLAT:
264	pResult->u.pvHCFlat = (void *) -(intptr_t)pResult->u.pvHCFlat;
265	break;
266	case DBGCVAR_TYPE_HC_PHYS:
267	pResult->u.HCPhys = (RTHCPHYS) -(int64_t)pResult->u.HCPhys;
268	break;
269	case DBGCVAR_TYPE_NUMBER:
270	pResult->u.u64Number = -(int64_t)pResult->u.u64Number;
271	break;
272
273	case DBGCVAR_TYPE_STRING:
274	case DBGCVAR_TYPE_SYMBOL:
275	default:
276	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
277	}
278	NOREF(pDbgc);
279	return VINF_SUCCESS;
280	}
281
282
283	/**
284	* Plus (unary).
285	*
286	* @returns VINF_SUCCESS on success.
287	* @returns VBox evaluation / parsing error code on failure.
288	* The caller does the bitching.
289	* @param pDbgc Debugger console instance data.
290	* @param pArg The argument.
291	* @param pResult Where to store the result.
292	*/
293	static DECLCALLBACK(int) dbgcOpPluss(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
294	{
295	LogFlow(("dbgcOpPluss\n"));
296	pResult = pArg;
297	switch (pArg->enmType)
298	{
299	case DBGCVAR_TYPE_GC_FLAT:
300	case DBGCVAR_TYPE_GC_FAR:
301	case DBGCVAR_TYPE_GC_PHYS:
302	case DBGCVAR_TYPE_HC_FLAT:
303	case DBGCVAR_TYPE_HC_PHYS:
304	case DBGCVAR_TYPE_NUMBER:
305	break;
306
307	case DBGCVAR_TYPE_STRING:
308	case DBGCVAR_TYPE_SYMBOL:
309	default:
310	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
311	}
312	NOREF(pDbgc);
313	return VINF_SUCCESS;
314	}
315
316
317	/**
318	* Boolean not (unary).
319	*
320	* @returns VINF_SUCCESS on success.
321	* @returns VBox evaluation / parsing error code on failure.
322	* The caller does the bitching.
323	* @param pDbgc Debugger console instance data.
324	* @param pArg The argument.
325	* @param pResult Where to store the result.
326	*/
327	static DECLCALLBACK(int) dbgcOpBooleanNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
328	{
329	LogFlow(("dbgcOpBooleanNot\n"));
330	pResult = pArg;
331	switch (pArg->enmType)
332	{
333	case DBGCVAR_TYPE_GC_FLAT:
334	pResult->u.u64Number = !pResult->u.GCFlat;
335	break;
336	case DBGCVAR_TYPE_GC_FAR:
337	pResult->u.u64Number = !pResult->u.GCFar.off && pResult->u.GCFar.sel <= 3;
338	break;
339	case DBGCVAR_TYPE_GC_PHYS:
340	pResult->u.u64Number = !pResult->u.GCPhys;
341	break;
342	case DBGCVAR_TYPE_HC_FLAT:
343	pResult->u.u64Number = !pResult->u.pvHCFlat;
344	break;
345	case DBGCVAR_TYPE_HC_PHYS:
346	pResult->u.u64Number = !pResult->u.HCPhys;
347	break;
348	case DBGCVAR_TYPE_NUMBER:
349	pResult->u.u64Number = !pResult->u.u64Number;
350	break;
351	case DBGCVAR_TYPE_STRING:
352	case DBGCVAR_TYPE_SYMBOL:
353	pResult->u.u64Number = !pResult->u64Range;
354	break;
355
356	case DBGCVAR_TYPE_UNKNOWN:
357	default:
358	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
359	}
360	pResult->enmType = DBGCVAR_TYPE_NUMBER;
361	NOREF(pDbgc);
362	return VINF_SUCCESS;
363	}
364
365
366	/**
367	* Bitwise not (unary).
368	*
369	* @returns VINF_SUCCESS on success.
370	* @returns VBox evaluation / parsing error code on failure.
371	* The caller does the bitching.
372	* @param pDbgc Debugger console instance data.
373	* @param pArg The argument.
374	* @param pResult Where to store the result.
375	*/
376	static DECLCALLBACK(int) dbgcOpBitwiseNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
377	{
378	LogFlow(("dbgcOpBitwiseNot\n"));
379	pResult = pArg;
380	switch (pArg->enmType)
381	{
382	case DBGCVAR_TYPE_GC_FLAT:
383	pResult->u.GCFlat = ~pResult->u.GCFlat;
384	break;
385	case DBGCVAR_TYPE_GC_FAR:
386	pResult->u.GCFar.off = ~pResult->u.GCFar.off;
387	break;
388	case DBGCVAR_TYPE_GC_PHYS:
389	pResult->u.GCPhys = ~pResult->u.GCPhys;
390	break;
391	case DBGCVAR_TYPE_HC_FLAT:
392	pResult->u.pvHCFlat = (void *)~(uintptr_t)pResult->u.pvHCFlat;
393	break;
394	case DBGCVAR_TYPE_HC_PHYS:
395	pResult->u.HCPhys = ~pResult->u.HCPhys;
396	break;
397	case DBGCVAR_TYPE_NUMBER:
398	pResult->u.u64Number = ~pResult->u.u64Number;
399	break;
400
401	case DBGCVAR_TYPE_STRING:
402	case DBGCVAR_TYPE_SYMBOL:
403	default:
404	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
405	}
406	NOREF(pDbgc);
407	return VINF_SUCCESS;
408	}
409
410
411	/**
412	* Reference variable (unary).
413	*
414	* @returns VINF_SUCCESS on success.
415	* @returns VBox evaluation / parsing error code on failure.
416	* The caller does the bitching.
417	* @param pDbgc Debugger console instance data.
418	* @param pArg The argument.
419	* @param pResult Where to store the result.
420	*/
421	static DECLCALLBACK(int) dbgcOpVar(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
422	{
423	LogFlow(("dbgcOpVar: %s\n", pArg->u.pszString));
424	AssertReturn(pArg->enmType == DBGCVAR_TYPE_SYMBOL, VERR_DBGC_PARSE_BUG);
425
426	/*
427	* Lookup the variable.
428	*/
429	const char *pszVar = pArg->u.pszString;
430	for (unsigned iVar = 0; iVar < pDbgc->cVars; iVar++)
431	{
432	if (!strcmp(pszVar, pDbgc->papVars[iVar]->szName))
433	{
434	*pResult = pDbgc->papVars[iVar]->Var;
435	return VINF_SUCCESS;
436	}
437	}
438
439	return VERR_DBGC_PARSE_VARIABLE_NOT_FOUND;
440	}
441
442
443	/**
444	* Reference register (unary).
445	*
446	* @returns VINF_SUCCESS on success.
447	* @returns VBox evaluation / parsing error code on failure.
448	* The caller does the bitching.
449	* @param pDbgc Debugger console instance data.
450	* @param pArg The argument.
451	* @param pResult Where to store the result.
452	*/
453	DECLCALLBACK(int) dbgcOpRegister(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
454	{
455	LogFlow(("dbgcOpRegister: %s\n", pArg->u.pszString));
456	AssertReturn(pArg->enmType == DBGCVAR_TYPE_SYMBOL, VERR_DBGC_PARSE_BUG);
457
458	/*
459	* If the desired result is a symbol, pass the argument along unmodified.
460	* This is a great help for "r @eax" and such, since it will be translated to "r eax".
461	*/
462	if (enmCat == DBGCVAR_CAT_SYMBOL)
463	{
464	int rc = DBGFR3RegNmValidate(pDbgc->pUVM, pDbgc->idCpu, pArg->u.pszString);
465	if (RT_SUCCESS(rc))
466	DBGCVAR_INIT_STRING(pResult, pArg->u.pszString);
467	return rc;
468	}
469
470	/*
471	* Get the register.
472	*/
473	DBGFREGVALTYPE enmType;
474	DBGFREGVAL Value;
475	int rc = DBGFR3RegNmQuery(pDbgc->pUVM, pDbgc->idCpu, pArg->u.pszString, &Value, &enmType);
476	if (RT_SUCCESS(rc))
477	{
478	switch (enmType)
479	{
480	case DBGFREGVALTYPE_U8:
481	DBGCVAR_INIT_NUMBER(pResult, Value.u8);
482	return VINF_SUCCESS;
483
484	case DBGFREGVALTYPE_U16:
485	DBGCVAR_INIT_NUMBER(pResult, Value.u16);
486	return VINF_SUCCESS;
487
488	case DBGFREGVALTYPE_U32:
489	DBGCVAR_INIT_NUMBER(pResult, Value.u32);
490	return VINF_SUCCESS;
491
492	case DBGFREGVALTYPE_U64:
493	DBGCVAR_INIT_NUMBER(pResult, Value.u64);
494	return VINF_SUCCESS;
495
496	case DBGFREGVALTYPE_U128:
497	DBGCVAR_INIT_NUMBER(pResult, Value.u128.s.Lo);
498	return VINF_SUCCESS;
499
500	case DBGFREGVALTYPE_R80:
501	#ifdef RT_COMPILER_WITH_80BIT_LONG_DOUBLE
502	DBGCVAR_INIT_NUMBER(pResult, (uint64_t)Value.r80Ex.lrd);
503	#else
504	DBGCVAR_INIT_NUMBER(pResult, (uint64_t)Value.r80Ex.sj64.u63Fraction);
505	#endif
506	return VINF_SUCCESS;
507
508	case DBGFREGVALTYPE_DTR:
509	DBGCVAR_INIT_NUMBER(pResult, Value.dtr.u64Base);
510	return VINF_SUCCESS;
511
512	case DBGFREGVALTYPE_INVALID:
513	case DBGFREGVALTYPE_END:
514	case DBGFREGVALTYPE_32BIT_HACK:
515	break;
516	}
517	rc = VERR_INTERNAL_ERROR_5;
518	}
519	return rc;
520	}
521
522
523	/**
524	* Flat address (unary).
525	*
526	* @returns VINF_SUCCESS on success.
527	* @returns VBox evaluation / parsing error code on failure.
528	* The caller does the bitching.
529	* @param pDbgc Debugger console instance data.
530	* @param pArg The argument.
531	* @param pResult Where to store the result.
532	*/
533	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
534	{
535	LogFlow(("dbgcOpAddrFlat\n"));
536	DBGCVARTYPE enmType = DBGCVAR_ISHCPOINTER(pArg->enmType) ? DBGCVAR_TYPE_HC_FLAT : DBGCVAR_TYPE_GC_FLAT;
537	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, enmType, true /fConvSyms/, pResult);
538	}
539
540
541	/**
542	* Physical address (unary).
543	*
544	* @returns VINF_SUCCESS on success.
545	* @returns VBox evaluation / parsing error code on failure.
546	* The caller does the bitching.
547	* @param pDbgc Debugger console instance data.
548	* @param pArg The argument.
549	* @param pResult Where to store the result.
550	*/
551	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
552	{
553	LogFlow(("dbgcOpAddrPhys\n"));
554	DBGCVARTYPE enmType = DBGCVAR_ISHCPOINTER(pArg->enmType) ? DBGCVAR_TYPE_HC_PHYS : DBGCVAR_TYPE_GC_PHYS;
555	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, enmType, true /fConvSyms/, pResult);
556	}
557
558
559	/**
560	* Physical host address (unary).
561	*
562	* @returns VINF_SUCCESS on success.
563	* @returns VBox evaluation / parsing error code on failure.
564	* The caller does the bitching.
565	* @param pDbgc Debugger console instance data.
566	* @param pArg The argument.
567	* @param pResult Where to store the result.
568	*/
569	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
570	{
571	LogFlow(("dbgcOpAddrPhys\n"));
572	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, DBGCVAR_TYPE_HC_PHYS, true /fConvSyms/, pResult);
573	}
574
575
576	/**
577	* Host address (unary).
578	*
579	* @returns VINF_SUCCESS on success.
580	* @returns VBox evaluation / parsing error code on failure.
581	* The caller does the bitching.
582	* @param pDbgc Debugger console instance data.
583	* @param pArg The argument.
584	* @param pResult Where to store the result.
585	*/
586	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
587	{
588	LogFlow(("dbgcOpAddrHost\n"));
589	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, DBGCVAR_TYPE_HC_FLAT, true /fConvSyms/, pResult);
590	}
591
592
593	/**
594	* Bitwise not (unary).
595	*
596	* @returns VINF_SUCCESS on success.
597	* @returns VBox evaluation / parsing error code on failure.
598	* The caller does the bitching.
599	* @param pDbgc Debugger console instance data.
600	* @param pArg The argument.
601	* @param pResult Where to store the result.
602	*/
603	static DECLCALLBACK(int) dbgcOpAddrFar(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
604	{
605	LogFlow(("dbgcOpAddrFar\n"));
606	int rc;
607
608	switch (pArg1->enmType)
609	{
610	case DBGCVAR_TYPE_SYMBOL:
611	rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_NUMBER, pResult);
612	if (RT_FAILURE(rc))
613	return rc;
614	break;
615	case DBGCVAR_TYPE_NUMBER:
616	pResult = pArg1;
617	break;
618	default:
619	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
620	}
621	pResult->u.GCFar.sel = (RTSEL)pResult->u.u64Number;
622
623	/* common code for the two types we support. */
624	switch (pArg2->enmType)
625	{
626	case DBGCVAR_TYPE_GC_FLAT:
627	pResult->u.GCFar.off = pArg2->u.GCFlat;
628	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
629	break;
630
631	case DBGCVAR_TYPE_HC_FLAT:
632	pResult->u.pvHCFlat = (void *)(uintptr_t)pArg2->u.GCFlat;
633	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
634	break;
635
636	case DBGCVAR_TYPE_NUMBER:
637	pResult->u.GCFar.off = (RTGCPTR)pArg2->u.u64Number;
638	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
639	break;
640
641	case DBGCVAR_TYPE_SYMBOL:
642	{
643	DBGCVAR Var;
644	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
645	if (RT_FAILURE(rc))
646	return rc;
647	pResult->u.GCFar.off = (RTGCPTR)Var.u.u64Number;
648	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
649	break;
650	}
651
652	default:
653	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
654	}
655	return VINF_SUCCESS;
656
657	}
658
659
660	/**
661	* Multiplication operator (binary).
662	*
663	* @returns VINF_SUCCESS on success.
664	* @returns VBox evaluation / parsing error code on failure.
665	* The caller does the bitching.
666	* @param pDbgc Debugger console instance data.
667	* @param pArg1 The first argument.
668	* @param pArg2 The 2nd argument.
669	* @param pResult Where to store the result.
670	*/
671	static DECLCALLBACK(int) dbgcOpMult(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
672	{
673	LogFlow(("dbgcOpMult\n"));
674	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
675	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, *, false);
676	}
677
678
679	/**
680	* Division operator (binary).
681	*
682	* @returns VINF_SUCCESS on success.
683	* @returns VBox evaluation / parsing error code on failure.
684	* The caller does the bitching.
685	* @param pDbgc Debugger console instance data.
686	* @param pArg1 The first argument.
687	* @param pArg2 The 2nd argument.
688	* @param pResult Where to store the result.
689	*/
690	static DECLCALLBACK(int) dbgcOpDiv(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
691	{
692	LogFlow(("dbgcOpDiv\n"));
693	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, /, true);
694	}
695
696
697	/**
698	* Modulus operator (binary).
699	*
700	* @returns VINF_SUCCESS on success.
701	* @returns VBox evaluation / parsing error code on failure.
702	* The caller does the bitching.
703	* @param pDbgc Debugger console instance data.
704	* @param pArg1 The first argument.
705	* @param pArg2 The 2nd argument.
706	* @param pResult Where to store the result.
707	*/
708	static DECLCALLBACK(int) dbgcOpMod(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
709	{
710	LogFlow(("dbgcOpMod\n"));
711	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, %, false);
712	}
713
714
715	/**
716	* Addition operator (binary).
717	*
718	* @returns VINF_SUCCESS on success.
719	* @returns VBox evaluation / parsing error code on failure.
720	* The caller does the bitching.
721	* @param pDbgc Debugger console instance data.
722	* @param pArg1 The first argument.
723	* @param pArg2 The 2nd argument.
724	* @param pResult Where to store the result.
725	*/
726	static DECLCALLBACK(int) dbgcOpAdd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
727	{
728	LogFlow(("dbgcOpAdd\n"));
729
730	/*
731	* An addition operation will return (when possible) the left side type in the
732	* expression. We make an omission for numbers, where we'll take the right side
733	* type instead. An expression where only the left hand side is a symbol we'll
734	* use the right hand type to try resolve it.
735	*/
736	if ( pArg1->enmType == DBGCVAR_TYPE_STRING
737	\|\| pArg2->enmType == DBGCVAR_TYPE_STRING)
738	return VERR_DBGC_PARSE_INVALID_OPERATION; /** @todo string contactenation later. */
739
740	if ( (pArg1->enmType == DBGCVAR_TYPE_NUMBER && pArg2->enmType != DBGCVAR_TYPE_SYMBOL)
741	\|\| (pArg1->enmType == DBGCVAR_TYPE_SYMBOL && pArg2->enmType != DBGCVAR_TYPE_SYMBOL))
742	{
743	PCDBGCVAR pTmp = pArg2;
744	pArg2 = pArg1;
745	pArg1 = pTmp;
746	}
747
748	DBGCVAR Sym1, Sym2;
749	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
750	{
751	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, &Sym1);
752	if (RT_FAILURE(rc))
753	return rc;
754	pArg1 = &Sym1;
755
756	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_ANY, &Sym2);
757	if (RT_FAILURE(rc))
758	return rc;
759	pArg2 = &Sym2;
760	}
761
762	int rc;
763	DBGCVAR Var;
764	DBGCVAR Var2;
765	switch (pArg1->enmType)
766	{
767	/*
768	* GC Flat
769	*/
770	case DBGCVAR_TYPE_GC_FLAT:
771	switch (pArg2->enmType)
772	{
773	case DBGCVAR_TYPE_HC_FLAT:
774	case DBGCVAR_TYPE_HC_PHYS:
775	return VERR_DBGC_PARSE_INVALID_OPERATION;
776	default:
777	pResult = pArg1;
778	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
779	if (RT_FAILURE(rc))
780	return rc;
781	pResult->u.GCFlat += pArg2->u.GCFlat;
782	break;
783	}
784	break;
785
786	/*
787	* GC Far
788	*/
789	case DBGCVAR_TYPE_GC_FAR:
790	switch (pArg2->enmType)
791	{
792	case DBGCVAR_TYPE_HC_FLAT:
793	case DBGCVAR_TYPE_HC_PHYS:
794	return VERR_DBGC_PARSE_INVALID_OPERATION;
795	case DBGCVAR_TYPE_NUMBER:
796	pResult = pArg1;
797	pResult->u.GCFar.off += (RTGCPTR)pArg2->u.u64Number;
798	break;
799	default:
800	rc = dbgcOpAddrFlat(pDbgc, pArg1, DBGCVAR_CAT_ANY, pResult);
801	if (RT_FAILURE(rc))
802	return rc;
803	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
804	if (RT_FAILURE(rc))
805	return rc;
806	pResult->u.GCFlat += pArg2->u.GCFlat;
807	break;
808	}
809	break;
810
811	/*
812	* GC Phys
813	*/
814	case DBGCVAR_TYPE_GC_PHYS:
815	switch (pArg2->enmType)
816	{
817	case DBGCVAR_TYPE_HC_FLAT:
818	case DBGCVAR_TYPE_HC_PHYS:
819	return VERR_DBGC_PARSE_INVALID_OPERATION;
820	default:
821	pResult = pArg1;
822	rc = dbgcOpAddrPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
823	if (RT_FAILURE(rc))
824	return rc;
825	if (Var.enmType != DBGCVAR_TYPE_GC_PHYS)
826	return VERR_DBGC_PARSE_INVALID_OPERATION;
827	pResult->u.GCPhys += Var.u.GCPhys;
828	break;
829	}
830	break;
831
832	/*
833	* HC Flat
834	*/
835	case DBGCVAR_TYPE_HC_FLAT:
836	pResult = pArg1;
837	rc = dbgcOpAddrHost(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var2);
838	if (RT_FAILURE(rc))
839	return rc;
840	rc = dbgcOpAddrFlat(pDbgc, &Var2, DBGCVAR_CAT_ANY, &Var);
841	if (RT_FAILURE(rc))
842	return rc;
843	pResult->u.pvHCFlat = (char *)pResult->u.pvHCFlat + (uintptr_t)Var.u.pvHCFlat;
844	break;
845
846	/*
847	* HC Phys
848	*/
849	case DBGCVAR_TYPE_HC_PHYS:
850	pResult = pArg1;
851	rc = dbgcOpAddrHostPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
852	if (RT_FAILURE(rc))
853	return rc;
854	pResult->u.HCPhys += Var.u.HCPhys;
855	break;
856
857	/*
858	* Numbers (see start of function)
859	*/
860	case DBGCVAR_TYPE_NUMBER:
861	pResult = pArg1;
862	switch (pArg2->enmType)
863	{
864	case DBGCVAR_TYPE_SYMBOL:
865	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
866	if (RT_FAILURE(rc))
867	return rc;
868	case DBGCVAR_TYPE_NUMBER:
869	pResult->u.u64Number += pArg2->u.u64Number;
870	break;
871	default:
872	return VERR_DBGC_PARSE_INVALID_OPERATION;
873	}
874	break;
875
876	default:
877	return VERR_DBGC_PARSE_INVALID_OPERATION;
878
879	}
880	return VINF_SUCCESS;
881	}
882
883
884	/**
885	* Subtraction operator (binary).
886	*
887	* @returns VINF_SUCCESS on success.
888	* @returns VBox evaluation / parsing error code on failure.
889	* The caller does the bitching.
890	* @param pDbgc Debugger console instance data.
891	* @param pArg1 The first argument.
892	* @param pArg2 The 2nd argument.
893	* @param pResult Where to store the result.
894	*/
895	static DECLCALLBACK(int) dbgcOpSub(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
896	{
897	LogFlow(("dbgcOpSub\n"));
898
899	/*
900	* An subtraction operation will return the left side type in the expression.
901	* However, if the left hand side is a number and the right hand a pointer of
902	* some kind we'll convert the left hand side to the same type as the right hand.
903	* Any symbols will be resolved, strings will be rejected.
904	*/
905	DBGCVAR Sym1, Sym2;
906	if ( pArg2->enmType == DBGCVAR_TYPE_SYMBOL
907	&& ( pArg1->enmType == DBGCVAR_TYPE_NUMBER
908	\|\| pArg1->enmType == DBGCVAR_TYPE_SYMBOL))
909	{
910	int rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_ANY, &Sym2);
911	if (RT_FAILURE(rc))
912	return rc;
913	pArg2 = &Sym2;
914	}
915
916	if ( pArg1->enmType == DBGCVAR_TYPE_STRING
917	\|\| pArg2->enmType == DBGCVAR_TYPE_STRING)
918	return VERR_DBGC_PARSE_INVALID_OPERATION;
919
920	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
921	{
922	DBGCVARTYPE enmType;
923	switch (pArg2->enmType)
924	{
925	case DBGCVAR_TYPE_NUMBER:
926	enmType = DBGCVAR_TYPE_ANY;
927	break;
928	case DBGCVAR_TYPE_GC_FLAT:
929	case DBGCVAR_TYPE_GC_PHYS:
930	case DBGCVAR_TYPE_HC_FLAT:
931	case DBGCVAR_TYPE_HC_PHYS:
932	enmType = pArg2->enmType;
933	break;
934	case DBGCVAR_TYPE_GC_FAR:
935	enmType = DBGCVAR_TYPE_GC_FLAT;
936	break;
937	default: AssertFailedReturn(VERR_DBGC_IPE);
938	}
939	if (enmType != DBGCVAR_TYPE_STRING)
940	{
941	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, &Sym1);
942	if (RT_FAILURE(rc))
943	return rc;
944	pArg1 = &Sym1;
945	}
946	}
947	else if (pArg1->enmType == DBGCVAR_TYPE_NUMBER)
948	{
949	PFNDBGCOPUNARY pOp = NULL;
950	switch (pArg2->enmType)
951	{
952	case DBGCVAR_TYPE_GC_FAR:
953	case DBGCVAR_TYPE_GC_FLAT:
954	pOp = dbgcOpAddrFlat;
955	break;
956	case DBGCVAR_TYPE_GC_PHYS:
957	pOp = dbgcOpAddrPhys;
958	break;
959	case DBGCVAR_TYPE_HC_FLAT:
960	pOp = dbgcOpAddrHost;
961	break;
962	case DBGCVAR_TYPE_HC_PHYS:
963	pOp = dbgcOpAddrHostPhys;
964	break;
965	case DBGCVAR_TYPE_NUMBER:
966	break;
967	default: AssertFailedReturn(VERR_DBGC_IPE);
968	}
969	if (pOp)
970	{
971	int rc = pOp(pDbgc, pArg1, DBGCVAR_CAT_ANY, &Sym1);
972	if (RT_FAILURE(rc))
973	return rc;
974	pArg1 = &Sym1;
975	}
976	}
977
978	/*
979	* Normal processing.
980	*/
981	int rc;
982	DBGCVAR Var;
983	DBGCVAR Var2;
984	switch (pArg1->enmType)
985	{
986	/*
987	* GC Flat
988	*/
989	case DBGCVAR_TYPE_GC_FLAT:
990	switch (pArg2->enmType)
991	{
992	case DBGCVAR_TYPE_HC_FLAT:
993	case DBGCVAR_TYPE_HC_PHYS:
994	return VERR_DBGC_PARSE_INVALID_OPERATION;
995	default:
996	pResult = pArg1;
997	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
998	if (RT_FAILURE(rc))
999	return rc;
1000	pResult->u.GCFlat -= pArg2->u.GCFlat;
1001	break;
1002	}
1003	break;
1004
1005	/*
1006	* GC Far
1007	*/
1008	case DBGCVAR_TYPE_GC_FAR:
1009	switch (pArg2->enmType)
1010	{
1011	case DBGCVAR_TYPE_HC_FLAT:
1012	case DBGCVAR_TYPE_HC_PHYS:
1013	return VERR_DBGC_PARSE_INVALID_OPERATION;
1014	case DBGCVAR_TYPE_NUMBER:
1015	pResult = pArg1;
1016	pResult->u.GCFar.off -= (RTGCPTR)pArg2->u.u64Number;
1017	break;
1018	default:
1019	rc = dbgcOpAddrFlat(pDbgc, pArg1, DBGCVAR_CAT_ANY, pResult);
1020	if (RT_FAILURE(rc))
1021	return rc;
1022	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
1023	if (RT_FAILURE(rc))
1024	return rc;
1025	pResult->u.GCFlat -= pArg2->u.GCFlat;
1026	break;
1027	}
1028	break;
1029
1030	/*
1031	* GC Phys
1032	*/
1033	case DBGCVAR_TYPE_GC_PHYS:
1034	switch (pArg2->enmType)
1035	{
1036	case DBGCVAR_TYPE_HC_FLAT:
1037	case DBGCVAR_TYPE_HC_PHYS:
1038	return VERR_DBGC_PARSE_INVALID_OPERATION;
1039	default:
1040	pResult = pArg1;
1041	rc = dbgcOpAddrPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
1042	if (RT_FAILURE(rc))
1043	return rc;
1044	if (Var.enmType != DBGCVAR_TYPE_GC_PHYS)
1045	return VERR_DBGC_PARSE_INVALID_OPERATION;
1046	pResult->u.GCPhys -= Var.u.GCPhys;
1047	break;
1048	}
1049	break;
1050
1051	/*
1052	* HC Flat
1053	*/
1054	case DBGCVAR_TYPE_HC_FLAT:
1055	pResult = pArg1;
1056	rc = dbgcOpAddrHost(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var2);
1057	if (RT_FAILURE(rc))
1058	return rc;
1059	rc = dbgcOpAddrFlat(pDbgc, &Var2, DBGCVAR_CAT_ANY, &Var);
1060	if (RT_FAILURE(rc))
1061	return rc;
1062	pResult->u.pvHCFlat = (char *)pResult->u.pvHCFlat - (uintptr_t)Var.u.pvHCFlat;
1063	break;
1064
1065	/*
1066	* HC Phys
1067	*/
1068	case DBGCVAR_TYPE_HC_PHYS:
1069	pResult = pArg1;
1070	rc = dbgcOpAddrHostPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
1071	if (RT_FAILURE(rc))
1072	return rc;
1073	pResult->u.HCPhys -= Var.u.HCPhys;
1074	break;
1075
1076	/*
1077	* Numbers (see start of function)
1078	*/
1079	case DBGCVAR_TYPE_NUMBER:
1080	pResult = pArg1;
1081	switch (pArg2->enmType)
1082	{
1083	case DBGCVAR_TYPE_SYMBOL:
1084	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
1085	if (RT_FAILURE(rc))
1086	return rc;
1087	case DBGCVAR_TYPE_NUMBER:
1088	pResult->u.u64Number -= pArg2->u.u64Number;
1089	break;
1090	default:
1091	return VERR_DBGC_PARSE_INVALID_OPERATION;
1092	}
1093	break;
1094
1095	default:
1096	return VERR_DBGC_PARSE_INVALID_OPERATION;
1097
1098	}
1099	return VINF_SUCCESS;
1100	}
1101
1102
1103	/**
1104	* Bitwise shift left operator (binary).
1105	*
1106	* @returns VINF_SUCCESS on success.
1107	* @returns VBox evaluation / parsing error code on failure.
1108	* The caller does the bitching.
1109	* @param pDbgc Debugger console instance data.
1110	* @param pArg1 The first argument.
1111	* @param pArg2 The 2nd argument.
1112	* @param pResult Where to store the result.
1113	*/
1114	static DECLCALLBACK(int) dbgcOpBitwiseShiftLeft(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1115	{
1116	LogFlow(("dbgcOpBitwiseShiftLeft\n"));
1117	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, <<, false);
1118	}
1119
1120
1121	/**
1122	* Bitwise shift right operator (binary).
1123	*
1124	* @returns VINF_SUCCESS on success.
1125	* @returns VBox evaluation / parsing error code on failure.
1126	* The caller does the bitching.
1127	* @param pDbgc Debugger console instance data.
1128	* @param pArg1 The first argument.
1129	* @param pArg2 The 2nd argument.
1130	* @param pResult Where to store the result.
1131	*/
1132	static DECLCALLBACK(int) dbgcOpBitwiseShiftRight(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1133	{
1134	LogFlow(("dbgcOpBitwiseShiftRight\n"));
1135	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, >>, false);
1136	}
1137
1138
1139	/**
1140	* Bitwise and operator (binary).
1141	*
1142	* @returns VINF_SUCCESS on success.
1143	* @returns VBox evaluation / parsing error code on failure.
1144	* The caller does the bitching.
1145	* @param pDbgc Debugger console instance data.
1146	* @param pArg1 The first argument.
1147	* @param pArg2 The 2nd argument.
1148	* @param pResult Where to store the result.
1149	*/
1150	static DECLCALLBACK(int) dbgcOpBitwiseAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1151	{
1152	LogFlow(("dbgcOpBitwiseAnd\n"));
1153	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1154	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, &, false);
1155	}
1156
1157
1158	/**
1159	* Bitwise exclusive or operator (binary).
1160	*
1161	* @returns VINF_SUCCESS on success.
1162	* @returns VBox evaluation / parsing error code on failure.
1163	* The caller does the bitching.
1164	* @param pDbgc Debugger console instance data.
1165	* @param pArg1 The first argument.
1166	* @param pArg2 The 2nd argument.
1167	* @param pResult Where to store the result.
1168	*/
1169	static DECLCALLBACK(int) dbgcOpBitwiseXor(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1170	{
1171	LogFlow(("dbgcOpBitwiseXor\n"));
1172	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1173	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, ^, false);
1174	}
1175
1176
1177	/**
1178	* Bitwise inclusive or operator (binary).
1179	*
1180	* @returns VINF_SUCCESS on success.
1181	* @returns VBox evaluation / parsing error code on failure.
1182	* The caller does the bitching.
1183	* @param pDbgc Debugger console instance data.
1184	* @param pArg1 The first argument.
1185	* @param pArg2 The 2nd argument.
1186	* @param pResult Where to store the result.
1187	*/
1188	static DECLCALLBACK(int) dbgcOpBitwiseOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1189	{
1190	LogFlow(("dbgcOpBitwiseOr\n"));
1191	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1192	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, \|, false);
1193	}
1194
1195
1196	/**
1197	* Boolean and operator (binary).
1198	*
1199	* @returns VINF_SUCCESS on success.
1200	* @returns VBox evaluation / parsing error code on failure.
1201	* The caller does the bitching.
1202	* @param pDbgc Debugger console instance data.
1203	* @param pArg1 The first argument.
1204	* @param pArg2 The 2nd argument.
1205	* @param pResult Where to store the result.
1206	*/
1207	static DECLCALLBACK(int) dbgcOpBooleanAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1208	{
1209	LogFlow(("dbgcOpBooleanAnd\n"));
1210	/** @todo force numeric return value? */
1211	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, &&, false);
1212	}
1213
1214
1215	/**
1216	* Boolean or operator (binary).
1217	*
1218	* @returns VINF_SUCCESS on success.
1219	* @returns VBox evaluation / parsing error code on failure.
1220	* The caller does the bitching.
1221	* @param pDbgc Debugger console instance data.
1222	* @param pArg1 The first argument.
1223	* @param pArg2 The 2nd argument.
1224	* @param pResult Where to store the result.
1225	*/
1226	static DECLCALLBACK(int) dbgcOpBooleanOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1227	{
1228	LogFlow(("dbgcOpBooleanOr\n"));
1229	/** @todo force numeric return value? */
1230	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, \|\|, false);
1231	}
1232
1233
1234	/**
1235	* Range to operator (binary).
1236	*
1237	* @returns VINF_SUCCESS on success.
1238	* @returns VBox evaluation / parsing error code on failure.
1239	* The caller does the bitching.
1240	* @param pDbgc Debugger console instance data.
1241	* @param pArg1 The first argument.
1242	* @param pArg2 The 2nd argument.
1243	* @param pResult Where to store the result.
1244	*/
1245	static DECLCALLBACK(int) dbgcOpRangeLength(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1246	{
1247	LogFlow(("dbgcOpRangeLength\n"));
1248
1249	if (pArg1->enmType == DBGCVAR_TYPE_STRING)
1250	return VERR_DBGC_PARSE_INVALID_OPERATION;
1251
1252	/*
1253	* Make result. Symbols needs to be resolved.
1254	*/
1255	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
1256	{
1257	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, pResult);
1258	if (RT_FAILURE(rc))
1259	return rc;
1260	}
1261	else
1262	pResult = pArg1;
1263
1264	/*
1265	* Convert 2nd argument to element count.
1266	*/
1267	pResult->enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1268	switch (pArg2->enmType)
1269	{
1270	case DBGCVAR_TYPE_NUMBER:
1271	pResult->u64Range = pArg2->u.u64Number;
1272	break;
1273
1274	case DBGCVAR_TYPE_SYMBOL:
1275	{
1276	int rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, pResult);
1277	if (RT_FAILURE(rc))
1278	return rc;
1279	pResult->u64Range = pArg2->u.u64Number;
1280	break;
1281	}
1282
1283	case DBGCVAR_TYPE_STRING:
1284	default:
1285	return VERR_DBGC_PARSE_INVALID_OPERATION;
1286	}
1287
1288	return VINF_SUCCESS;
1289	}
1290
1291
1292	/**
1293	* Range to operator (binary).
1294	*
1295	* @returns VINF_SUCCESS on success.
1296	* @returns VBox evaluation / parsing error code on failure.
1297	* The caller does the bitching.
1298	* @param pDbgc Debugger console instance data.
1299	* @param pArg1 The first argument.
1300	* @param pArg2 The 2nd argument.
1301	* @param pResult Where to store the result.
1302	*/
1303	static DECLCALLBACK(int) dbgcOpRangeLengthBytes(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1304	{
1305	LogFlow(("dbgcOpRangeLengthBytes\n"));
1306	int rc = dbgcOpRangeLength(pDbgc, pArg1, pArg2, pResult);
1307	if (RT_SUCCESS(rc))
1308	pResult->enmRangeType = DBGCVAR_RANGE_BYTES;
1309	return rc;
1310	}
1311
1312
1313	/**
1314	* Range to operator (binary).
1315	*
1316	* @returns VINF_SUCCESS on success.
1317	* @returns VBox evaluation / parsing error code on failure.
1318	* The caller does the bitching.
1319	* @param pDbgc Debugger console instance data.
1320	* @param pArg1 The first argument.
1321	* @param pArg2 The 2nd argument.
1322	* @param pResult Where to store the result.
1323	*/
1324	static DECLCALLBACK(int) dbgcOpRangeTo(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1325	{
1326	LogFlow(("dbgcOpRangeTo\n"));
1327
1328	/*
1329	* Calc number of bytes between the two args.
1330	*/
1331	DBGCVAR Diff;
1332	int rc = dbgcOpSub(pDbgc, pArg2, pArg1, &Diff);
1333	if (RT_FAILURE(rc))
1334	return rc;
1335
1336	/*
1337	* Use the diff as the range of Arg1.
1338	*/
1339	pResult = pArg1;
1340	pResult->enmRangeType = DBGCVAR_RANGE_BYTES;
1341	switch (Diff.enmType)
1342	{
1343	case DBGCVAR_TYPE_GC_FLAT:
1344	pResult->u64Range = (RTGCUINTPTR)Diff.u.GCFlat;
1345	break;
1346	case DBGCVAR_TYPE_GC_PHYS:
1347	pResult->u64Range = Diff.u.GCPhys;
1348	break;
1349	case DBGCVAR_TYPE_HC_FLAT:
1350	pResult->u64Range = (uintptr_t)Diff.u.pvHCFlat;
1351	break;
1352	case DBGCVAR_TYPE_HC_PHYS:
1353	pResult->u64Range = Diff.u.HCPhys;
1354	break;
1355	case DBGCVAR_TYPE_NUMBER:
1356	pResult->u64Range = Diff.u.u64Number;
1357	break;
1358
1359	case DBGCVAR_TYPE_GC_FAR:
1360	case DBGCVAR_TYPE_STRING:
1361	case DBGCVAR_TYPE_SYMBOL:
1362	default:
1363	AssertMsgFailed(("Impossible!\n"));
1364	return VERR_DBGC_PARSE_INVALID_OPERATION;
1365	}
1366
1367	return VINF_SUCCESS;
1368	}
1369
1370
1371	/**
1372	* Searches for an operator descriptor which matches the start of
1373	* the expression given us.
1374	*
1375	* @returns Pointer to the operator on success.
1376	* @param pDbgc The debug console instance.
1377	* @param pszExpr Pointer to the expression string which might start with an operator.
1378	* @param fPreferBinary Whether to favour binary or unary operators.
1379	* Caller must assert that it's the desired type! Both types will still
1380	* be returned, this is only for resolving duplicates.
1381	* @param chPrev The previous char. Some operators requires a blank in front of it.
1382	*/
1383	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev)
1384	{
1385	PCDBGCOP pOp = NULL;
1386	for (unsigned iOp = 0; iOp < RT_ELEMENTS(g_aDbgcOps); iOp++)
1387	{
1388	if ( g_aDbgcOps[iOp].szName[0] == pszExpr[0]
1389	&& (!g_aDbgcOps[iOp].szName[1] \|\| g_aDbgcOps[iOp].szName[1] == pszExpr[1])
1390	&& (!g_aDbgcOps[iOp].szName[2] \|\| g_aDbgcOps[iOp].szName[2] == pszExpr[2]))
1391	{
1392	/*
1393	* Check that we don't mistake it for some other operator which have more chars.
1394	*/
1395	unsigned j;
1396	for (j = iOp + 1; j < RT_ELEMENTS(g_aDbgcOps); j++)
1397	if ( g_aDbgcOps[j].cchName > g_aDbgcOps[iOp].cchName
1398	&& g_aDbgcOps[j].szName[0] == pszExpr[0]
1399	&& (!g_aDbgcOps[j].szName[1] \|\| g_aDbgcOps[j].szName[1] == pszExpr[1])
1400	&& (!g_aDbgcOps[j].szName[2] \|\| g_aDbgcOps[j].szName[2] == pszExpr[2]) )
1401	break;
1402	if (j < RT_ELEMENTS(g_aDbgcOps))
1403	continue; /* we'll catch it later. (for theoretical +,++,+++ cases.) */
1404	pOp = &g_aDbgcOps[iOp];
1405
1406	/*
1407	* Preferred type?
1408	*/
1409	if (g_aDbgcOps[iOp].fBinary == fPreferBinary)
1410	break;
1411	}
1412	}
1413
1414	if (pOp)
1415	Log2(("dbgcOperatorLookup: pOp=%p %s\n", pOp, pOp->szName));
1416	NOREF(pDbgc); NOREF(chPrev);
1417	return pOp;
1418	}
1419

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source: vbox/trunk/src/VBox/Debugger/DBGCOps.cpp@ 45221

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