DBGCOps.cpp@ 62838

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1	/* $Id: DBGCOps.cpp 62838 2016-08-01 17:01:57Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Operators.
4	*/
5
6	/*
7	* Copyright (C) 2006-2016 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	* @callback_method_impl{FNDBGCOPUNARY, Negate (unary).}
240	*/
241	static DECLCALLBACK(int) dbgcOpMinus(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
242	{
243	RT_NOREF1(enmCat);
244	LogFlow(("dbgcOpMinus\n"));
245	pResult = pArg;
246	switch (pArg->enmType)
247	{
248	case DBGCVAR_TYPE_GC_FLAT:
249	pResult->u.GCFlat = -(RTGCINTPTR)pResult->u.GCFlat;
250	break;
251	case DBGCVAR_TYPE_GC_FAR:
252	pResult->u.GCFar.off = -(int32_t)pResult->u.GCFar.off;
253	break;
254	case DBGCVAR_TYPE_GC_PHYS:
255	pResult->u.GCPhys = (RTGCPHYS) -(int64_t)pResult->u.GCPhys;
256	break;
257	case DBGCVAR_TYPE_HC_FLAT:
258	pResult->u.pvHCFlat = (void *) -(intptr_t)pResult->u.pvHCFlat;
259	break;
260	case DBGCVAR_TYPE_HC_PHYS:
261	pResult->u.HCPhys = (RTHCPHYS) -(int64_t)pResult->u.HCPhys;
262	break;
263	case DBGCVAR_TYPE_NUMBER:
264	pResult->u.u64Number = -(int64_t)pResult->u.u64Number;
265	break;
266
267	case DBGCVAR_TYPE_STRING:
268	case DBGCVAR_TYPE_SYMBOL:
269	default:
270	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
271	}
272	NOREF(pDbgc);
273	return VINF_SUCCESS;
274	}
275
276
277	/**
278	* @callback_method_impl{FNDBGCOPUNARY, Plus (unary).}
279	*/
280	static DECLCALLBACK(int) dbgcOpPluss(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
281	{
282	RT_NOREF1(enmCat);
283	LogFlow(("dbgcOpPluss\n"));
284	pResult = pArg;
285	switch (pArg->enmType)
286	{
287	case DBGCVAR_TYPE_GC_FLAT:
288	case DBGCVAR_TYPE_GC_FAR:
289	case DBGCVAR_TYPE_GC_PHYS:
290	case DBGCVAR_TYPE_HC_FLAT:
291	case DBGCVAR_TYPE_HC_PHYS:
292	case DBGCVAR_TYPE_NUMBER:
293	break;
294
295	case DBGCVAR_TYPE_STRING:
296	case DBGCVAR_TYPE_SYMBOL:
297	default:
298	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
299	}
300	NOREF(pDbgc);
301	return VINF_SUCCESS;
302	}
303
304
305	/**
306	* @callback_method_impl{FNDBGCOPUNARY, Boolean not (unary).}
307	*/
308	static DECLCALLBACK(int) dbgcOpBooleanNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
309	{
310	RT_NOREF1(enmCat);
311	LogFlow(("dbgcOpBooleanNot\n"));
312	pResult = pArg;
313	switch (pArg->enmType)
314	{
315	case DBGCVAR_TYPE_GC_FLAT:
316	pResult->u.u64Number = !pResult->u.GCFlat;
317	break;
318	case DBGCVAR_TYPE_GC_FAR:
319	pResult->u.u64Number = !pResult->u.GCFar.off && pResult->u.GCFar.sel <= 3;
320	break;
321	case DBGCVAR_TYPE_GC_PHYS:
322	pResult->u.u64Number = !pResult->u.GCPhys;
323	break;
324	case DBGCVAR_TYPE_HC_FLAT:
325	pResult->u.u64Number = !pResult->u.pvHCFlat;
326	break;
327	case DBGCVAR_TYPE_HC_PHYS:
328	pResult->u.u64Number = !pResult->u.HCPhys;
329	break;
330	case DBGCVAR_TYPE_NUMBER:
331	pResult->u.u64Number = !pResult->u.u64Number;
332	break;
333	case DBGCVAR_TYPE_STRING:
334	case DBGCVAR_TYPE_SYMBOL:
335	pResult->u.u64Number = !pResult->u64Range;
336	break;
337
338	case DBGCVAR_TYPE_UNKNOWN:
339	default:
340	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
341	}
342	pResult->enmType = DBGCVAR_TYPE_NUMBER;
343	NOREF(pDbgc);
344	return VINF_SUCCESS;
345	}
346
347
348	/**
349	* @callback_method_impl{FNDBGCOPUNARY, Bitwise not (unary).}
350	*/
351	static DECLCALLBACK(int) dbgcOpBitwiseNot(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
352	{
353	RT_NOREF1(enmCat);
354	LogFlow(("dbgcOpBitwiseNot\n"));
355	pResult = pArg;
356	switch (pArg->enmType)
357	{
358	case DBGCVAR_TYPE_GC_FLAT:
359	pResult->u.GCFlat = ~pResult->u.GCFlat;
360	break;
361	case DBGCVAR_TYPE_GC_FAR:
362	pResult->u.GCFar.off = ~pResult->u.GCFar.off;
363	break;
364	case DBGCVAR_TYPE_GC_PHYS:
365	pResult->u.GCPhys = ~pResult->u.GCPhys;
366	break;
367	case DBGCVAR_TYPE_HC_FLAT:
368	pResult->u.pvHCFlat = (void *)~(uintptr_t)pResult->u.pvHCFlat;
369	break;
370	case DBGCVAR_TYPE_HC_PHYS:
371	pResult->u.HCPhys = ~pResult->u.HCPhys;
372	break;
373	case DBGCVAR_TYPE_NUMBER:
374	pResult->u.u64Number = ~pResult->u.u64Number;
375	break;
376
377	case DBGCVAR_TYPE_STRING:
378	case DBGCVAR_TYPE_SYMBOL:
379	default:
380	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
381	}
382	NOREF(pDbgc);
383	return VINF_SUCCESS;
384	}
385
386
387	/**
388	* @callback_method_impl{FNDBGCOPUNARY, Reference variable (unary).}
389	*/
390	static DECLCALLBACK(int) dbgcOpVar(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
391	{
392	RT_NOREF1(enmCat);
393	LogFlow(("dbgcOpVar: %s\n", pArg->u.pszString));
394	AssertReturn(pArg->enmType == DBGCVAR_TYPE_SYMBOL, VERR_DBGC_PARSE_BUG);
395
396	/*
397	* Lookup the variable.
398	*/
399	const char *pszVar = pArg->u.pszString;
400	for (unsigned iVar = 0; iVar < pDbgc->cVars; iVar++)
401	{
402	if (!strcmp(pszVar, pDbgc->papVars[iVar]->szName))
403	{
404	*pResult = pDbgc->papVars[iVar]->Var;
405	return VINF_SUCCESS;
406	}
407	}
408
409	return VERR_DBGC_PARSE_VARIABLE_NOT_FOUND;
410	}
411
412
413	/**
414	* @callback_method_impl{FNDBGCOPUNARY, Reference register (unary).}
415	*/
416	DECLCALLBACK(int) dbgcOpRegister(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
417	{
418	LogFlow(("dbgcOpRegister: %s\n", pArg->u.pszString));
419	AssertReturn(pArg->enmType == DBGCVAR_TYPE_SYMBOL, VERR_DBGC_PARSE_BUG);
420
421	/* Detect references to hypervisor registers. */
422	const char *pszReg = pArg->u.pszString;
423	VMCPUID idCpu = pDbgc->idCpu;
424	if (pszReg[0] == '.')
425	{
426	pszReg++;
427	idCpu \|= DBGFREG_HYPER_VMCPUID;
428	}
429
430	/*
431	* If the desired result is a symbol, pass the argument along unmodified.
432	* This is a great help for "r @eax" and such, since it will be translated to "r eax".
433	*/
434	if (enmCat == DBGCVAR_CAT_SYMBOL)
435	{
436	int rc = DBGFR3RegNmValidate(pDbgc->pUVM, idCpu, pszReg);
437	if (RT_SUCCESS(rc))
438	DBGCVAR_INIT_STRING(pResult, pArg->u.pszString);
439	return rc;
440	}
441
442	/*
443	* Get the register.
444	*/
445	DBGFREGVALTYPE enmType;
446	DBGFREGVAL Value;
447	int rc = DBGFR3RegNmQuery(pDbgc->pUVM, idCpu, pszReg, &Value, &enmType);
448	if (RT_SUCCESS(rc))
449	{
450	switch (enmType)
451	{
452	case DBGFREGVALTYPE_U8:
453	DBGCVAR_INIT_NUMBER(pResult, Value.u8);
454	return VINF_SUCCESS;
455
456	case DBGFREGVALTYPE_U16:
457	DBGCVAR_INIT_NUMBER(pResult, Value.u16);
458	return VINF_SUCCESS;
459
460	case DBGFREGVALTYPE_U32:
461	DBGCVAR_INIT_NUMBER(pResult, Value.u32);
462	return VINF_SUCCESS;
463
464	case DBGFREGVALTYPE_U64:
465	DBGCVAR_INIT_NUMBER(pResult, Value.u64);
466	return VINF_SUCCESS;
467
468	case DBGFREGVALTYPE_U128:
469	DBGCVAR_INIT_NUMBER(pResult, Value.u128.s.Lo);
470	return VINF_SUCCESS;
471
472	case DBGFREGVALTYPE_R80:
473	#ifdef RT_COMPILER_WITH_80BIT_LONG_DOUBLE
474	DBGCVAR_INIT_NUMBER(pResult, (uint64_t)Value.r80Ex.lrd);
475	#else
476	DBGCVAR_INIT_NUMBER(pResult, (uint64_t)Value.r80Ex.sj64.u63Fraction);
477	#endif
478	return VINF_SUCCESS;
479
480	case DBGFREGVALTYPE_DTR:
481	DBGCVAR_INIT_NUMBER(pResult, Value.dtr.u64Base);
482	return VINF_SUCCESS;
483
484	case DBGFREGVALTYPE_INVALID:
485	case DBGFREGVALTYPE_END:
486	case DBGFREGVALTYPE_32BIT_HACK:
487	break;
488	}
489	rc = VERR_INTERNAL_ERROR_5;
490	}
491	return rc;
492	}
493
494
495	/**
496	* @callback_method_impl{FNDBGCOPUNARY, Flat address (unary).}
497	*/
498	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
499	{
500	RT_NOREF1(enmCat);
501	LogFlow(("dbgcOpAddrFlat\n"));
502	DBGCVARTYPE enmType = DBGCVAR_ISHCPOINTER(pArg->enmType) ? DBGCVAR_TYPE_HC_FLAT : DBGCVAR_TYPE_GC_FLAT;
503	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, enmType, true /fConvSyms/, pResult);
504	}
505
506
507	/**
508	* @callback_method_impl{FNDBGCOPUNARY, Physical address (unary).}
509	*/
510	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
511	{
512	RT_NOREF1(enmCat);
513	LogFlow(("dbgcOpAddrPhys\n"));
514	DBGCVARTYPE enmType = DBGCVAR_ISHCPOINTER(pArg->enmType) ? DBGCVAR_TYPE_HC_PHYS : DBGCVAR_TYPE_GC_PHYS;
515	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, enmType, true /fConvSyms/, pResult);
516	}
517
518
519	/**
520	* @callback_method_impl{FNDBGCOPUNARY, Physical host address (unary).}
521	*/
522	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
523	{
524	RT_NOREF1(enmCat);
525	LogFlow(("dbgcOpAddrPhys\n"));
526	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, DBGCVAR_TYPE_HC_PHYS, true /fConvSyms/, pResult);
527	}
528
529
530	/**
531	* @callback_method_impl{FNDBGCOPUNARY, Host address (unary).}
532	*/
533	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult)
534	{
535	RT_NOREF1(enmCat);
536	LogFlow(("dbgcOpAddrHost\n"));
537	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pArg, DBGCVAR_TYPE_HC_FLAT, true /fConvSyms/, pResult);
538	}
539
540
541	/**
542	* @callback_method_impl{FNDBGCOPUNARY, Far address (unary).}
543	*/
544	static DECLCALLBACK(int) dbgcOpAddrFar(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
545	{
546	LogFlow(("dbgcOpAddrFar\n"));
547	int rc;
548
549	switch (pArg1->enmType)
550	{
551	case DBGCVAR_TYPE_SYMBOL:
552	rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_NUMBER, pResult);
553	if (RT_FAILURE(rc))
554	return rc;
555	break;
556	case DBGCVAR_TYPE_NUMBER:
557	pResult = pArg1;
558	break;
559	default:
560	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
561	}
562	pResult->u.GCFar.sel = (RTSEL)pResult->u.u64Number;
563
564	/* common code for the two types we support. */
565	switch (pArg2->enmType)
566	{
567	case DBGCVAR_TYPE_GC_FLAT:
568	pResult->u.GCFar.off = pArg2->u.GCFlat;
569	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
570	break;
571
572	case DBGCVAR_TYPE_HC_FLAT:
573	pResult->u.pvHCFlat = (void *)(uintptr_t)pArg2->u.GCFlat;
574	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
575	break;
576
577	case DBGCVAR_TYPE_NUMBER:
578	pResult->u.GCFar.off = (RTGCPTR)pArg2->u.u64Number;
579	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
580	break;
581
582	case DBGCVAR_TYPE_SYMBOL:
583	{
584	DBGCVAR Var;
585	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
586	if (RT_FAILURE(rc))
587	return rc;
588	pResult->u.GCFar.off = (RTGCPTR)Var.u.u64Number;
589	pResult->enmType = DBGCVAR_TYPE_GC_FAR;
590	break;
591	}
592
593	default:
594	return VERR_DBGC_PARSE_INCORRECT_ARG_TYPE;
595	}
596	return VINF_SUCCESS;
597
598	}
599
600
601	/**
602	* Multiplication operator (binary).
603	*
604	* @returns VINF_SUCCESS on success.
605	* @returns VBox evaluation / parsing error code on failure.
606	* The caller does the bitching.
607	* @param pDbgc Debugger console instance data.
608	* @param pArg1 The first argument.
609	* @param pArg2 The 2nd argument.
610	* @param pResult Where to store the result.
611	*/
612	static DECLCALLBACK(int) dbgcOpMult(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
613	{
614	LogFlow(("dbgcOpMult\n"));
615	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
616	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, *, false);
617	}
618
619
620	/**
621	* Division operator (binary).
622	*
623	* @returns VINF_SUCCESS on success.
624	* @returns VBox evaluation / parsing error code on failure.
625	* The caller does the bitching.
626	* @param pDbgc Debugger console instance data.
627	* @param pArg1 The first argument.
628	* @param pArg2 The 2nd argument.
629	* @param pResult Where to store the result.
630	*/
631	static DECLCALLBACK(int) dbgcOpDiv(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
632	{
633	LogFlow(("dbgcOpDiv\n"));
634	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, /, true);
635	}
636
637
638	/**
639	* Modulus operator (binary).
640	*
641	* @returns VINF_SUCCESS on success.
642	* @returns VBox evaluation / parsing error code on failure.
643	* The caller does the bitching.
644	* @param pDbgc Debugger console instance data.
645	* @param pArg1 The first argument.
646	* @param pArg2 The 2nd argument.
647	* @param pResult Where to store the result.
648	*/
649	static DECLCALLBACK(int) dbgcOpMod(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
650	{
651	LogFlow(("dbgcOpMod\n"));
652	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, %, false);
653	}
654
655
656	/**
657	* Addition operator (binary).
658	*
659	* @returns VINF_SUCCESS on success.
660	* @returns VBox evaluation / parsing error code on failure.
661	* The caller does the bitching.
662	* @param pDbgc Debugger console instance data.
663	* @param pArg1 The first argument.
664	* @param pArg2 The 2nd argument.
665	* @param pResult Where to store the result.
666	*/
667	static DECLCALLBACK(int) dbgcOpAdd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
668	{
669	LogFlow(("dbgcOpAdd\n"));
670
671	/*
672	* An addition operation will return (when possible) the left side type in the
673	* expression. We make an omission for numbers, where we'll take the right side
674	* type instead. An expression where only the left hand side is a symbol we'll
675	* use the right hand type to try resolve it.
676	*/
677	if ( pArg1->enmType == DBGCVAR_TYPE_STRING
678	\|\| pArg2->enmType == DBGCVAR_TYPE_STRING)
679	return VERR_DBGC_PARSE_INVALID_OPERATION; /** @todo string contactenation later. */
680
681	if ( (pArg1->enmType == DBGCVAR_TYPE_NUMBER && pArg2->enmType != DBGCVAR_TYPE_SYMBOL)
682	\|\| (pArg1->enmType == DBGCVAR_TYPE_SYMBOL && pArg2->enmType != DBGCVAR_TYPE_SYMBOL))
683	{
684	PCDBGCVAR pTmp = pArg2;
685	pArg2 = pArg1;
686	pArg1 = pTmp;
687	}
688
689	DBGCVAR Sym1, Sym2;
690	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
691	{
692	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, &Sym1);
693	if (RT_FAILURE(rc))
694	return rc;
695	pArg1 = &Sym1;
696
697	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_ANY, &Sym2);
698	if (RT_FAILURE(rc))
699	return rc;
700	pArg2 = &Sym2;
701	}
702
703	int rc;
704	DBGCVAR Var;
705	DBGCVAR Var2;
706	switch (pArg1->enmType)
707	{
708	/*
709	* GC Flat
710	*/
711	case DBGCVAR_TYPE_GC_FLAT:
712	switch (pArg2->enmType)
713	{
714	case DBGCVAR_TYPE_HC_FLAT:
715	case DBGCVAR_TYPE_HC_PHYS:
716	return VERR_DBGC_PARSE_INVALID_OPERATION;
717	default:
718	pResult = pArg1;
719	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
720	if (RT_FAILURE(rc))
721	return rc;
722	pResult->u.GCFlat += pArg2->u.GCFlat;
723	break;
724	}
725	break;
726
727	/*
728	* GC Far
729	*/
730	case DBGCVAR_TYPE_GC_FAR:
731	switch (pArg2->enmType)
732	{
733	case DBGCVAR_TYPE_HC_FLAT:
734	case DBGCVAR_TYPE_HC_PHYS:
735	return VERR_DBGC_PARSE_INVALID_OPERATION;
736	case DBGCVAR_TYPE_NUMBER:
737	pResult = pArg1;
738	pResult->u.GCFar.off += (RTGCPTR)pArg2->u.u64Number;
739	break;
740	default:
741	rc = dbgcOpAddrFlat(pDbgc, pArg1, DBGCVAR_CAT_ANY, pResult);
742	if (RT_FAILURE(rc))
743	return rc;
744	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
745	if (RT_FAILURE(rc))
746	return rc;
747	pResult->u.GCFlat += pArg2->u.GCFlat;
748	break;
749	}
750	break;
751
752	/*
753	* GC Phys
754	*/
755	case DBGCVAR_TYPE_GC_PHYS:
756	switch (pArg2->enmType)
757	{
758	case DBGCVAR_TYPE_HC_FLAT:
759	case DBGCVAR_TYPE_HC_PHYS:
760	return VERR_DBGC_PARSE_INVALID_OPERATION;
761	default:
762	pResult = pArg1;
763	rc = dbgcOpAddrPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
764	if (RT_FAILURE(rc))
765	return rc;
766	if (Var.enmType != DBGCVAR_TYPE_GC_PHYS)
767	return VERR_DBGC_PARSE_INVALID_OPERATION;
768	pResult->u.GCPhys += Var.u.GCPhys;
769	break;
770	}
771	break;
772
773	/*
774	* HC Flat
775	*/
776	case DBGCVAR_TYPE_HC_FLAT:
777	pResult = pArg1;
778	rc = dbgcOpAddrHost(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var2);
779	if (RT_FAILURE(rc))
780	return rc;
781	rc = dbgcOpAddrFlat(pDbgc, &Var2, DBGCVAR_CAT_ANY, &Var);
782	if (RT_FAILURE(rc))
783	return rc;
784	pResult->u.pvHCFlat = (char *)pResult->u.pvHCFlat + (uintptr_t)Var.u.pvHCFlat;
785	break;
786
787	/*
788	* HC Phys
789	*/
790	case DBGCVAR_TYPE_HC_PHYS:
791	pResult = pArg1;
792	rc = dbgcOpAddrHostPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
793	if (RT_FAILURE(rc))
794	return rc;
795	pResult->u.HCPhys += Var.u.HCPhys;
796	break;
797
798	/*
799	* Numbers (see start of function)
800	*/
801	case DBGCVAR_TYPE_NUMBER:
802	pResult = pArg1;
803	switch (pArg2->enmType)
804	{
805	case DBGCVAR_TYPE_SYMBOL:
806	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
807	if (RT_FAILURE(rc))
808	return rc;
809	case DBGCVAR_TYPE_NUMBER:
810	pResult->u.u64Number += pArg2->u.u64Number;
811	break;
812	default:
813	return VERR_DBGC_PARSE_INVALID_OPERATION;
814	}
815	break;
816
817	default:
818	return VERR_DBGC_PARSE_INVALID_OPERATION;
819
820	}
821	return VINF_SUCCESS;
822	}
823
824
825	/**
826	* Subtraction operator (binary).
827	*
828	* @returns VINF_SUCCESS on success.
829	* @returns VBox evaluation / parsing error code on failure.
830	* The caller does the bitching.
831	* @param pDbgc Debugger console instance data.
832	* @param pArg1 The first argument.
833	* @param pArg2 The 2nd argument.
834	* @param pResult Where to store the result.
835	*/
836	static DECLCALLBACK(int) dbgcOpSub(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
837	{
838	LogFlow(("dbgcOpSub\n"));
839
840	/*
841	* An subtraction operation will return the left side type in the expression.
842	* However, if the left hand side is a number and the right hand a pointer of
843	* some kind we'll convert the left hand side to the same type as the right hand.
844	* Any symbols will be resolved, strings will be rejected.
845	*/
846	DBGCVAR Sym1, Sym2;
847	if ( pArg2->enmType == DBGCVAR_TYPE_SYMBOL
848	&& ( pArg1->enmType == DBGCVAR_TYPE_NUMBER
849	\|\| pArg1->enmType == DBGCVAR_TYPE_SYMBOL))
850	{
851	int rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_ANY, &Sym2);
852	if (RT_FAILURE(rc))
853	return rc;
854	pArg2 = &Sym2;
855	}
856
857	if ( pArg1->enmType == DBGCVAR_TYPE_STRING
858	\|\| pArg2->enmType == DBGCVAR_TYPE_STRING)
859	return VERR_DBGC_PARSE_INVALID_OPERATION;
860
861	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
862	{
863	DBGCVARTYPE enmType;
864	switch (pArg2->enmType)
865	{
866	case DBGCVAR_TYPE_NUMBER:
867	enmType = DBGCVAR_TYPE_ANY;
868	break;
869	case DBGCVAR_TYPE_GC_FLAT:
870	case DBGCVAR_TYPE_GC_PHYS:
871	case DBGCVAR_TYPE_HC_FLAT:
872	case DBGCVAR_TYPE_HC_PHYS:
873	enmType = pArg2->enmType;
874	break;
875	case DBGCVAR_TYPE_GC_FAR:
876	enmType = DBGCVAR_TYPE_GC_FLAT;
877	break;
878	default: AssertFailedReturn(VERR_DBGC_IPE);
879	}
880	if (enmType != DBGCVAR_TYPE_STRING)
881	{
882	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, &Sym1);
883	if (RT_FAILURE(rc))
884	return rc;
885	pArg1 = &Sym1;
886	}
887	}
888	else if (pArg1->enmType == DBGCVAR_TYPE_NUMBER)
889	{
890	PFNDBGCOPUNARY pOp = NULL;
891	switch (pArg2->enmType)
892	{
893	case DBGCVAR_TYPE_GC_FAR:
894	case DBGCVAR_TYPE_GC_FLAT:
895	pOp = dbgcOpAddrFlat;
896	break;
897	case DBGCVAR_TYPE_GC_PHYS:
898	pOp = dbgcOpAddrPhys;
899	break;
900	case DBGCVAR_TYPE_HC_FLAT:
901	pOp = dbgcOpAddrHost;
902	break;
903	case DBGCVAR_TYPE_HC_PHYS:
904	pOp = dbgcOpAddrHostPhys;
905	break;
906	case DBGCVAR_TYPE_NUMBER:
907	break;
908	default: AssertFailedReturn(VERR_DBGC_IPE);
909	}
910	if (pOp)
911	{
912	int rc = pOp(pDbgc, pArg1, DBGCVAR_CAT_ANY, &Sym1);
913	if (RT_FAILURE(rc))
914	return rc;
915	pArg1 = &Sym1;
916	}
917	}
918
919	/*
920	* Normal processing.
921	*/
922	int rc;
923	DBGCVAR Var;
924	DBGCVAR Var2;
925	switch (pArg1->enmType)
926	{
927	/*
928	* GC Flat
929	*/
930	case DBGCVAR_TYPE_GC_FLAT:
931	switch (pArg2->enmType)
932	{
933	case DBGCVAR_TYPE_HC_FLAT:
934	case DBGCVAR_TYPE_HC_PHYS:
935	return VERR_DBGC_PARSE_INVALID_OPERATION;
936	default:
937	pResult = pArg1;
938	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
939	if (RT_FAILURE(rc))
940	return rc;
941	pResult->u.GCFlat -= pArg2->u.GCFlat;
942	break;
943	}
944	break;
945
946	/*
947	* GC Far
948	*/
949	case DBGCVAR_TYPE_GC_FAR:
950	switch (pArg2->enmType)
951	{
952	case DBGCVAR_TYPE_HC_FLAT:
953	case DBGCVAR_TYPE_HC_PHYS:
954	return VERR_DBGC_PARSE_INVALID_OPERATION;
955	case DBGCVAR_TYPE_NUMBER:
956	pResult = pArg1;
957	pResult->u.GCFar.off -= (RTGCPTR)pArg2->u.u64Number;
958	break;
959	default:
960	rc = dbgcOpAddrFlat(pDbgc, pArg1, DBGCVAR_CAT_ANY, pResult);
961	if (RT_FAILURE(rc))
962	return rc;
963	rc = dbgcOpAddrFlat(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
964	if (RT_FAILURE(rc))
965	return rc;
966	pResult->u.GCFlat -= pArg2->u.GCFlat;
967	break;
968	}
969	break;
970
971	/*
972	* GC Phys
973	*/
974	case DBGCVAR_TYPE_GC_PHYS:
975	switch (pArg2->enmType)
976	{
977	case DBGCVAR_TYPE_HC_FLAT:
978	case DBGCVAR_TYPE_HC_PHYS:
979	return VERR_DBGC_PARSE_INVALID_OPERATION;
980	default:
981	pResult = pArg1;
982	rc = dbgcOpAddrPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
983	if (RT_FAILURE(rc))
984	return rc;
985	if (Var.enmType != DBGCVAR_TYPE_GC_PHYS)
986	return VERR_DBGC_PARSE_INVALID_OPERATION;
987	pResult->u.GCPhys -= Var.u.GCPhys;
988	break;
989	}
990	break;
991
992	/*
993	* HC Flat
994	*/
995	case DBGCVAR_TYPE_HC_FLAT:
996	pResult = pArg1;
997	rc = dbgcOpAddrHost(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var2);
998	if (RT_FAILURE(rc))
999	return rc;
1000	rc = dbgcOpAddrFlat(pDbgc, &Var2, DBGCVAR_CAT_ANY, &Var);
1001	if (RT_FAILURE(rc))
1002	return rc;
1003	pResult->u.pvHCFlat = (char *)pResult->u.pvHCFlat - (uintptr_t)Var.u.pvHCFlat;
1004	break;
1005
1006	/*
1007	* HC Phys
1008	*/
1009	case DBGCVAR_TYPE_HC_PHYS:
1010	pResult = pArg1;
1011	rc = dbgcOpAddrHostPhys(pDbgc, pArg2, DBGCVAR_CAT_ANY, &Var);
1012	if (RT_FAILURE(rc))
1013	return rc;
1014	pResult->u.HCPhys -= Var.u.HCPhys;
1015	break;
1016
1017	/*
1018	* Numbers (see start of function)
1019	*/
1020	case DBGCVAR_TYPE_NUMBER:
1021	pResult = pArg1;
1022	switch (pArg2->enmType)
1023	{
1024	case DBGCVAR_TYPE_SYMBOL:
1025	rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, &Var);
1026	if (RT_FAILURE(rc))
1027	return rc;
1028	case DBGCVAR_TYPE_NUMBER:
1029	pResult->u.u64Number -= pArg2->u.u64Number;
1030	break;
1031	default:
1032	return VERR_DBGC_PARSE_INVALID_OPERATION;
1033	}
1034	break;
1035
1036	default:
1037	return VERR_DBGC_PARSE_INVALID_OPERATION;
1038
1039	}
1040	return VINF_SUCCESS;
1041	}
1042
1043
1044	/**
1045	* Bitwise shift left operator (binary).
1046	*
1047	* @returns VINF_SUCCESS on success.
1048	* @returns VBox evaluation / parsing error code on failure.
1049	* The caller does the bitching.
1050	* @param pDbgc Debugger console instance data.
1051	* @param pArg1 The first argument.
1052	* @param pArg2 The 2nd argument.
1053	* @param pResult Where to store the result.
1054	*/
1055	static DECLCALLBACK(int) dbgcOpBitwiseShiftLeft(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1056	{
1057	LogFlow(("dbgcOpBitwiseShiftLeft\n"));
1058	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, <<, false);
1059	}
1060
1061
1062	/**
1063	* Bitwise shift right operator (binary).
1064	*
1065	* @returns VINF_SUCCESS on success.
1066	* @returns VBox evaluation / parsing error code on failure.
1067	* The caller does the bitching.
1068	* @param pDbgc Debugger console instance data.
1069	* @param pArg1 The first argument.
1070	* @param pArg2 The 2nd argument.
1071	* @param pResult Where to store the result.
1072	*/
1073	static DECLCALLBACK(int) dbgcOpBitwiseShiftRight(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1074	{
1075	LogFlow(("dbgcOpBitwiseShiftRight\n"));
1076	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, >>, false);
1077	}
1078
1079
1080	/**
1081	* Bitwise and operator (binary).
1082	*
1083	* @returns VINF_SUCCESS on success.
1084	* @returns VBox evaluation / parsing error code on failure.
1085	* The caller does the bitching.
1086	* @param pDbgc Debugger console instance data.
1087	* @param pArg1 The first argument.
1088	* @param pArg2 The 2nd argument.
1089	* @param pResult Where to store the result.
1090	*/
1091	static DECLCALLBACK(int) dbgcOpBitwiseAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1092	{
1093	LogFlow(("dbgcOpBitwiseAnd\n"));
1094	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1095	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, &, false);
1096	}
1097
1098
1099	/**
1100	* Bitwise exclusive or operator (binary).
1101	*
1102	* @returns VINF_SUCCESS on success.
1103	* @returns VBox evaluation / parsing error code on failure.
1104	* The caller does the bitching.
1105	* @param pDbgc Debugger console instance data.
1106	* @param pArg1 The first argument.
1107	* @param pArg2 The 2nd argument.
1108	* @param pResult Where to store the result.
1109	*/
1110	static DECLCALLBACK(int) dbgcOpBitwiseXor(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1111	{
1112	LogFlow(("dbgcOpBitwiseXor\n"));
1113	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1114	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, ^, false);
1115	}
1116
1117
1118	/**
1119	* Bitwise inclusive or operator (binary).
1120	*
1121	* @returns VINF_SUCCESS on success.
1122	* @returns VBox evaluation / parsing error code on failure.
1123	* The caller does the bitching.
1124	* @param pDbgc Debugger console instance data.
1125	* @param pArg1 The first argument.
1126	* @param pArg2 The 2nd argument.
1127	* @param pResult Where to store the result.
1128	*/
1129	static DECLCALLBACK(int) dbgcOpBitwiseOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1130	{
1131	LogFlow(("dbgcOpBitwiseOr\n"));
1132	DBGC_GEN_ARIT_POINTER_TO_THE_LEFT(pArg1, pArg2);
1133	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, \|, false);
1134	}
1135
1136
1137	/**
1138	* Boolean and operator (binary).
1139	*
1140	* @returns VINF_SUCCESS on success.
1141	* @returns VBox evaluation / parsing error code on failure.
1142	* The caller does the bitching.
1143	* @param pDbgc Debugger console instance data.
1144	* @param pArg1 The first argument.
1145	* @param pArg2 The 2nd argument.
1146	* @param pResult Where to store the result.
1147	*/
1148	static DECLCALLBACK(int) dbgcOpBooleanAnd(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1149	{
1150	LogFlow(("dbgcOpBooleanAnd\n"));
1151	/** @todo force numeric return value? */
1152	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, &&, false);
1153	}
1154
1155
1156	/**
1157	* Boolean or operator (binary).
1158	*
1159	* @returns VINF_SUCCESS on success.
1160	* @returns VBox evaluation / parsing error code on failure.
1161	* The caller does the bitching.
1162	* @param pDbgc Debugger console instance data.
1163	* @param pArg1 The first argument.
1164	* @param pArg2 The 2nd argument.
1165	* @param pResult Where to store the result.
1166	*/
1167	static DECLCALLBACK(int) dbgcOpBooleanOr(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1168	{
1169	LogFlow(("dbgcOpBooleanOr\n"));
1170	/** @todo force numeric return value? */
1171	DBGC_GEN_ARIT_BINARY_OP(pDbgc, pArg1, pArg2, pResult, \|\|, false);
1172	}
1173
1174
1175	/**
1176	* Range to operator (binary).
1177	*
1178	* @returns VINF_SUCCESS on success.
1179	* @returns VBox evaluation / parsing error code on failure.
1180	* The caller does the bitching.
1181	* @param pDbgc Debugger console instance data.
1182	* @param pArg1 The first argument.
1183	* @param pArg2 The 2nd argument.
1184	* @param pResult Where to store the result.
1185	*/
1186	static DECLCALLBACK(int) dbgcOpRangeLength(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1187	{
1188	LogFlow(("dbgcOpRangeLength\n"));
1189
1190	if (pArg1->enmType == DBGCVAR_TYPE_STRING)
1191	return VERR_DBGC_PARSE_INVALID_OPERATION;
1192
1193	/*
1194	* Make result. Symbols needs to be resolved.
1195	*/
1196	if (pArg1->enmType == DBGCVAR_TYPE_SYMBOL)
1197	{
1198	int rc = dbgcSymbolGet(pDbgc, pArg1->u.pszString, DBGCVAR_TYPE_ANY, pResult);
1199	if (RT_FAILURE(rc))
1200	return rc;
1201	}
1202	else
1203	pResult = pArg1;
1204
1205	/*
1206	* Convert 2nd argument to element count.
1207	*/
1208	pResult->enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1209	switch (pArg2->enmType)
1210	{
1211	case DBGCVAR_TYPE_NUMBER:
1212	pResult->u64Range = pArg2->u.u64Number;
1213	break;
1214
1215	case DBGCVAR_TYPE_SYMBOL:
1216	{
1217	int rc = dbgcSymbolGet(pDbgc, pArg2->u.pszString, DBGCVAR_TYPE_NUMBER, pResult);
1218	if (RT_FAILURE(rc))
1219	return rc;
1220	pResult->u64Range = pArg2->u.u64Number;
1221	break;
1222	}
1223
1224	case DBGCVAR_TYPE_STRING:
1225	default:
1226	return VERR_DBGC_PARSE_INVALID_OPERATION;
1227	}
1228
1229	return VINF_SUCCESS;
1230	}
1231
1232
1233	/**
1234	* Range to operator (binary).
1235	*
1236	* @returns VINF_SUCCESS on success.
1237	* @returns VBox evaluation / parsing error code on failure.
1238	* The caller does the bitching.
1239	* @param pDbgc Debugger console instance data.
1240	* @param pArg1 The first argument.
1241	* @param pArg2 The 2nd argument.
1242	* @param pResult Where to store the result.
1243	*/
1244	static DECLCALLBACK(int) dbgcOpRangeLengthBytes(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1245	{
1246	LogFlow(("dbgcOpRangeLengthBytes\n"));
1247	int rc = dbgcOpRangeLength(pDbgc, pArg1, pArg2, pResult);
1248	if (RT_SUCCESS(rc))
1249	pResult->enmRangeType = DBGCVAR_RANGE_BYTES;
1250	return rc;
1251	}
1252
1253
1254	/**
1255	* Range to operator (binary).
1256	*
1257	* @returns VINF_SUCCESS on success.
1258	* @returns VBox evaluation / parsing error code on failure.
1259	* The caller does the bitching.
1260	* @param pDbgc Debugger console instance data.
1261	* @param pArg1 The first argument.
1262	* @param pArg2 The 2nd argument.
1263	* @param pResult Where to store the result.
1264	*/
1265	static DECLCALLBACK(int) dbgcOpRangeTo(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult)
1266	{
1267	LogFlow(("dbgcOpRangeTo\n"));
1268
1269	/*
1270	* Calc number of bytes between the two args.
1271	*/
1272	DBGCVAR Diff;
1273	int rc = dbgcOpSub(pDbgc, pArg2, pArg1, &Diff);
1274	if (RT_FAILURE(rc))
1275	return rc;
1276
1277	/*
1278	* Use the diff as the range of Arg1.
1279	*/
1280	pResult = pArg1;
1281	pResult->enmRangeType = DBGCVAR_RANGE_BYTES;
1282	switch (Diff.enmType)
1283	{
1284	case DBGCVAR_TYPE_GC_FLAT:
1285	pResult->u64Range = (RTGCUINTPTR)Diff.u.GCFlat;
1286	break;
1287	case DBGCVAR_TYPE_GC_PHYS:
1288	pResult->u64Range = Diff.u.GCPhys;
1289	break;
1290	case DBGCVAR_TYPE_HC_FLAT:
1291	pResult->u64Range = (uintptr_t)Diff.u.pvHCFlat;
1292	break;
1293	case DBGCVAR_TYPE_HC_PHYS:
1294	pResult->u64Range = Diff.u.HCPhys;
1295	break;
1296	case DBGCVAR_TYPE_NUMBER:
1297	pResult->u64Range = Diff.u.u64Number;
1298	break;
1299
1300	case DBGCVAR_TYPE_GC_FAR:
1301	case DBGCVAR_TYPE_STRING:
1302	case DBGCVAR_TYPE_SYMBOL:
1303	default:
1304	AssertMsgFailed(("Impossible!\n"));
1305	return VERR_DBGC_PARSE_INVALID_OPERATION;
1306	}
1307
1308	return VINF_SUCCESS;
1309	}
1310
1311
1312	/**
1313	* Searches for an operator descriptor which matches the start of
1314	* the expression given us.
1315	*
1316	* @returns Pointer to the operator on success.
1317	* @param pDbgc The debug console instance.
1318	* @param pszExpr Pointer to the expression string which might start with an operator.
1319	* @param fPreferBinary Whether to favour binary or unary operators.
1320	* Caller must assert that it's the desired type! Both types will still
1321	* be returned, this is only for resolving duplicates.
1322	* @param chPrev The previous char. Some operators requires a blank in front of it.
1323	*/
1324	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev)
1325	{
1326	PCDBGCOP pOp = NULL;
1327	for (unsigned iOp = 0; iOp < RT_ELEMENTS(g_aDbgcOps); iOp++)
1328	{
1329	if ( g_aDbgcOps[iOp].szName[0] == pszExpr[0]
1330	&& (!g_aDbgcOps[iOp].szName[1] \|\| g_aDbgcOps[iOp].szName[1] == pszExpr[1])
1331	&& (!g_aDbgcOps[iOp].szName[2] \|\| g_aDbgcOps[iOp].szName[2] == pszExpr[2]))
1332	{
1333	/*
1334	* Check that we don't mistake it for some other operator which have more chars.
1335	*/
1336	unsigned j;
1337	for (j = iOp + 1; j < RT_ELEMENTS(g_aDbgcOps); j++)
1338	if ( g_aDbgcOps[j].cchName > g_aDbgcOps[iOp].cchName
1339	&& g_aDbgcOps[j].szName[0] == pszExpr[0]
1340	&& (!g_aDbgcOps[j].szName[1] \|\| g_aDbgcOps[j].szName[1] == pszExpr[1])
1341	&& (!g_aDbgcOps[j].szName[2] \|\| g_aDbgcOps[j].szName[2] == pszExpr[2]) )
1342	break;
1343	if (j < RT_ELEMENTS(g_aDbgcOps))
1344	continue; /* we'll catch it later. (for theoretical +,++,+++ cases.) */
1345	pOp = &g_aDbgcOps[iOp];
1346
1347	/*
1348	* Preferred type?
1349	*/
1350	if (g_aDbgcOps[iOp].fBinary == fPreferBinary)
1351	break;
1352	}
1353	}
1354
1355	if (pOp)
1356	Log2(("dbgcOperatorLookup: pOp=%p %s\n", pOp, pOp->szName));
1357	NOREF(pDbgc); NOREF(chPrev);
1358	return pOp;
1359	}
1360

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source: vbox/trunk/src/VBox/Debugger/DBGCOps.cpp@ 62838

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