DBGPlugInOS2.cpp@ 97405

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1	/* $Id: DBGPlugInOS2.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
2	/** @file
3	* DBGPlugInOS2 - Debugger and Guest OS Digger Plugin For OS/2.
4	*/
5
6	/*
7	* Copyright (C) 2009-2022 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_DBGF /// @todo add new log group.
33	#include "DBGPlugIns.h"
34	#include <VBox/vmm/vmmr3vtable.h>
35	#include <VBox/err.h>
36	#include <VBox/param.h>
37	#include <iprt/string.h>
38	#include <iprt/mem.h>
39	#include <iprt/stream.h>
40
41
42	/*********************************************************************************************************************************
43	* Structures and Typedefs *
44	*********************************************************************************************************************************/
45
46	typedef enum DBGDIGGEROS2VER
47	{
48	DBGDIGGEROS2VER_UNKNOWN,
49	DBGDIGGEROS2VER_1_x,
50	DBGDIGGEROS2VER_2_x,
51	DBGDIGGEROS2VER_3_0,
52	DBGDIGGEROS2VER_4_0,
53	DBGDIGGEROS2VER_4_5
54	} DBGDIGGEROS2VER;
55
56	/**
57	* OS/2 guest OS digger instance data.
58	*/
59	typedef struct DBGDIGGEROS2
60	{
61	/** The user-mode VM handle for use in info handlers. */
62	PUVM pUVM;
63	/** The VMM function table for use in info handlers. */
64	PCVMMR3VTABLE pVMM;
65
66	/** Whether the information is valid or not.
67	* (For fending off illegal interface method calls.) */
68	bool fValid;
69	/** 32-bit (true) or 16-bit (false) */
70	bool f32Bit;
71
72	/** The OS/2 guest version. */
73	DBGDIGGEROS2VER enmVer;
74	uint8_t OS2MajorVersion;
75	uint8_t OS2MinorVersion;
76
77	/** Guest's Global Info Segment selector. */
78	uint16_t selGis;
79	/** The 16:16 address of the LIS. */
80	RTFAR32 Lis;
81
82	/** The kernel virtual address (excluding DOSMVDMINSTDATA & DOSSWAPINSTDATA). */
83	uint32_t uKernelAddr;
84	/** The kernel size. */
85	uint32_t cbKernel;
86
87	} DBGDIGGEROS2;
88	/** Pointer to the OS/2 guest OS digger instance data. */
89	typedef DBGDIGGEROS2 *PDBGDIGGEROS2;
90
91	/**
92	* 32-bit OS/2 loader module table entry.
93	*/
94	typedef struct LDRMTE
95	{
96	uint16_t mte_flags2;
97	uint16_t mte_handle;
98	uint32_t mte_swapmte; /*< Pointer to LDRSMTE. /
99	uint32_t mte_link; /*< Pointer to next LDRMTE. /
100	uint32_t mte_flags1;
101	uint32_t mte_impmodcnt;
102	uint16_t mte_sfn;
103	uint16_t mte_usecnt;
104	char mte_modname[8];
105	uint32_t mte_RAS; /*< added later /
106	uint32_t mte_modver; /*< added even later. /
107	} LDRMTE;
108	/** @name LDRMTE::mte_flag2 values
109	* @{ */
110	#define MTEFORMATMASK UINT16_C(0x0003)
111	#define MTEFORMATR1 UINT16_C(0x0000)
112	#define MTEFORMATNE UINT16_C(0x0001)
113	#define MTEFORMATLX UINT16_C(0x0002)
114	#define MTEFORMATR2 UINT16_C(0x0003)
115	#define MTESYSTEMDLL UINT16_C(0x0004)
116	#define MTELOADORATTACH UINT16_C(0x0008)
117	#define MTECIRCLEREF UINT16_C(0x0010)
118	#define MTEFREEFIXUPS UINT16_C(0x0020) /* had different meaning earlier */
119	#define MTEPRELOADED UINT16_C(0x0040)
120	#define MTEGETMTEDONE UINT16_C(0x0080)
121	#define MTEPACKSEGDONE UINT16_C(0x0100)
122	#define MTE20LIELIST UINT16_C(0x0200)
123	#define MTESYSPROCESSED UINT16_C(0x0400)
124	#define MTEPSDMOD UINT16_C(0x0800)
125	#define MTEDLLONEXTLST UINT16_C(0x1000)
126	#define MTEPDUMPCIRCREF UINT16_C(0x2000)
127	/** @} */
128	/** @name LDRMTE::mte_flag1 values
129	* @{ */
130	#define MTE1_NOAUTODS UINT32_C(0x00000000)
131	#define MTE1_SOLO UINT32_C(0x00000001)
132	#define MTE1_INSTANCEDS UINT32_C(0x00000002)
133	#define MTE1_INSTLIBINIT UINT32_C(0x00000004)
134	#define MTE1_GINISETUP UINT32_C(0x00000008)
135	#define MTE1_NOINTERNFIXUPS UINT32_C(0x00000010)
136	#define MTE1_NOEXTERNFIXUPS UINT32_C(0x00000020)
137	#define MTE1_CLASS_ALL UINT32_C(0x00000000)
138	#define MTE1_CLASS_PROGRAM UINT32_C(0x00000040)
139	#define MTE1_CLASS_GLOBAL UINT32_C(0x00000080)
140	#define MTE1_CLASS_SPECIFIC UINT32_C(0x000000c0)
141	#define MTE1_CLASS_MASK UINT32_C(0x000000c0)
142	#define MTE1_MTEPROCESSED UINT32_C(0x00000100)
143	#define MTE1_USED UINT32_C(0x00000200)
144	#define MTE1_DOSLIB UINT32_C(0x00000400)
145	#define MTE1_DOSMOD UINT32_C(0x00000800) /*< The OS/2 kernel (DOSCALLS)./
146	#define MTE1_MEDIAFIXED UINT32_C(0x00001000)
147	#define MTE1_LDRINVALID UINT32_C(0x00002000)
148	#define MTE1_PROGRAMMOD UINT32_C(0x00000000)
149	#define MTE1_DEVDRVMOD UINT32_C(0x00004000)
150	#define MTE1_LIBRARYMOD UINT32_C(0x00008000)
151	#define MTE1_VDDMOD UINT32_C(0x00010000)
152	#define MTE1_MVDMMOD UINT32_C(0x00020000)
153	#define MTE1_INGRAPH UINT32_C(0x00040000)
154	#define MTE1_GINIDONE UINT32_C(0x00080000)
155	#define MTE1_ADDRALLOCED UINT32_C(0x00100000)
156	#define MTE1_FSDMOD UINT32_C(0x00200000)
157	#define MTE1_FSHMOD UINT32_C(0x00400000)
158	#define MTE1_LONGNAMES UINT32_C(0x00800000)
159	#define MTE1_MEDIACONTIG UINT32_C(0x01000000)
160	#define MTE1_MEDIA16M UINT32_C(0x02000000)
161	#define MTE1_SWAPONLOAD UINT32_C(0x04000000)
162	#define MTE1_PORTHOLE UINT32_C(0x08000000)
163	#define MTE1_MODPROT UINT32_C(0x10000000)
164	#define MTE1_NEWMOD UINT32_C(0x20000000)
165	#define MTE1_DLLTERM UINT32_C(0x40000000)
166	#define MTE1_SYMLOADED UINT32_C(0x80000000)
167	/** @} */
168
169
170	/**
171	* 32-bit OS/2 swappable module table entry.
172	*/
173	typedef struct LDRSMTE
174	{
175	uint32_t smte_mpages; /*< 0x00: module page count. /
176	uint32_t smte_startobj; /*< 0x04: Entrypoint segment number. /
177	uint32_t smte_eip; /*< 0x08: Entrypoint offset value. /
178	uint32_t smte_stackobj; /*< 0x0c: Stack segment number. /
179	uint32_t smte_esp; /*< 0x10: Stack offset value/
180	uint32_t smte_pageshift; /*< 0x14: Page shift value. /
181	uint32_t smte_fixupsize; /*< 0x18: Size of the fixup section. /
182	uint32_t smte_objtab; /*< 0x1c: Pointer to LDROTE array. /
183	uint32_t smte_objcnt; /*< 0x20: Number of segments. /
184	uint32_t smte_objmap; /*< 0x20: Address of the object page map. /
185	uint32_t smte_itermap; /*< 0x20: File offset of the iterated data map/
186	uint32_t smte_rsrctab; /*< 0x20: Pointer to resource table? /
187	uint32_t smte_rsrccnt; /*< 0x30: Number of resource table entries. /
188	uint32_t smte_restab; /*< 0x30: Pointer to the resident name table. /
189	uint32_t smte_enttab; /*< 0x30: Possibly entry point table address, if not file offset. /
190	uint32_t smte_fpagetab; /*< 0x30 /
191	uint32_t smte_frectab; /*< 0x40 /
192	uint32_t smte_impmod; /*< 0x44 /
193	uint32_t smte_impproc; /*< 0x48 /
194	uint32_t smte_datapage; /*< 0x4c /
195	uint32_t smte_nrestab; /*< 0x50 /
196	uint32_t smte_cbnrestab; /*< 0x54 /
197	uint32_t smte_autods; /*< 0x58 /
198	uint32_t smte_debuginfo; /*< 0x5c /
199	uint32_t smte_debuglen; /*< 0x60 /
200	uint32_t smte_heapsize; /*< 0x64 /
201	uint32_t smte_path; /*< 0x68 Address of full name string. /
202	uint16_t smte_semcount; /*< 0x6c /
203	uint16_t smte_semowner; /*< 0x6e /
204	uint32_t smte_pfilecache; /*< 0x70: Address of cached data if replace-module is used. /
205	uint32_t smte_stacksize; /*< 0x74: Stack size for .exe thread 1. /
206	uint16_t smte_alignshift; /*< 0x78: /
207	uint16_t smte_NEexpver; /*< 0x7a: /
208	uint16_t smte_pathlen; /*< 0x7c: Length of smte_path /
209	uint16_t smte_NEexetype; /*< 0x7e: /
210	uint16_t smte_csegpack; /*< 0x80: /
211	uint8_t smte_major_os; /*< 0x82: added later to lie about OS version /
212	uint8_t smte_minor_os; /*< 0x83: added later to lie about OS version /
213	} LDRSMTE;
214	AssertCompileSize(LDRSMTE, 0x84);
215
216	typedef struct LDROTE
217	{
218	uint32_t ote_size;
219	uint32_t ote_base;
220	uint32_t ote_flags;
221	uint32_t ote_pagemap;
222	uint32_t ote_mapsize;
223	union
224	{
225	uint32_t ote_vddaddr;
226	uint32_t ote_krnaddr;
227	struct
228	{
229	uint16_t ote_selector;
230	uint16_t ote_handle;
231	} s;
232	};
233	} LDROTE;
234	AssertCompileSize(LDROTE, 24);
235
236
237	/**
238	* 32-bit system anchor block segment header.
239	*/
240	typedef struct SAS
241	{
242	uint8_t SAS_signature[4];
243	uint16_t SAS_tables_data; /*< Offset to SASTABLES. /
244	uint16_t SAS_flat_sel; /*< 32-bit kernel DS (flat). /
245	uint16_t SAS_config_data; /*< Offset to SASCONFIG. /
246	uint16_t SAS_dd_data; /*< Offset to SASDD. /
247	uint16_t SAS_vm_data; /*< Offset to SASVM. /
248	uint16_t SAS_task_data; /*< Offset to SASTASK. /
249	uint16_t SAS_RAS_data; /*< Offset to SASRAS. /
250	uint16_t SAS_file_data; /*< Offset to SASFILE. /
251	uint16_t SAS_info_data; /*< Offset to SASINFO. /
252	uint16_t SAS_mp_data; /*< Offset to SASMP. SMP only. /
253	} SAS;
254	#define SAS_SIGNATURE "SAS "
255
256	typedef struct SASTABLES
257	{
258	uint16_t SAS_tbl_GDT;
259	uint16_t SAS_tbl_LDT;
260	uint16_t SAS_tbl_IDT;
261	uint16_t SAS_tbl_GDTPOOL;
262	} SASTABLES;
263
264	typedef struct SASCONFIG
265	{
266	uint16_t SAS_config_table;
267	} SASCONFIG;
268
269	typedef struct SASDD
270	{
271	uint16_t SAS_dd_bimodal_chain;
272	uint16_t SAS_dd_real_chain;
273	uint16_t SAS_dd_DPB_segment;
274	uint16_t SAS_dd_CDA_anchor_p;
275	uint16_t SAS_dd_CDA_anchor_r;
276	uint16_t SAS_dd_FSC;
277	} SASDD;
278
279	typedef struct SASVM
280	{
281	uint32_t SAS_vm_arena;
282	uint32_t SAS_vm_object;
283	uint32_t SAS_vm_context;
284	uint32_t SAS_vm_krnl_mte; /*< Flat address of kernel MTE. /
285	uint32_t SAS_vm_glbl_mte; /*< Flat address of global MTE list head pointer variable. /
286	uint32_t SAS_vm_pft;
287	uint32_t SAS_vm_prt;
288	uint32_t SAS_vm_swap;
289	uint32_t SAS_vm_idle_head;
290	uint32_t SAS_vm_free_head;
291	uint32_t SAS_vm_heap_info;
292	uint32_t SAS_vm_all_mte; /*< Flat address of global MTE list head pointer variable. /
293	} SASVM;
294
295
296	#pragma pack(1)
297	typedef struct SASTASK
298	{
299	uint16_t SAS_task_PTDA; /*< Current PTDA selector. /
300	uint32_t SAS_task_ptdaptrs; /*< Flat address of process tree root. /
301	uint32_t SAS_task_threadptrs; /*< Flat address array of thread pointer array. /
302	uint32_t SAS_task_tasknumber; /*< Flat address of the TaskNumber variable. /
303	uint32_t SAS_task_threadcount; /*< Flat address of the ThreadCount variable. /
304	} SASTASK;
305	#pragma pack()
306
307
308	#pragma pack(1)
309	typedef struct SASRAS
310	{
311	uint16_t SAS_RAS_STDA_p;
312	uint16_t SAS_RAS_STDA_r;
313	uint16_t SAS_RAS_event_mask;
314	uint32_t SAS_RAS_Perf_Buff;
315	} SASRAS;
316	#pragma pack()
317
318	typedef struct SASFILE
319	{
320	uint32_t SAS_file_MFT; /*< Handle. /
321	uint16_t SAS_file_SFT; /*< Selector. /
322	uint16_t SAS_file_VPB; /*< Selector. /
323	uint16_t SAS_file_CDS; /*< Selector. /
324	uint16_t SAS_file_buffers; /*< Selector. /
325	} SASFILE;
326
327	#pragma pack(1)
328	typedef struct SASINFO
329	{
330	uint16_t SAS_info_global; /*< GIS selector. /
331	uint32_t SAS_info_local; /*< 16:16 address of LIS for current task. /
332	uint32_t SAS_info_localRM;
333	uint16_t SAS_info_CDIB; /*< Selector. /
334	} SASINFO;
335	#pragma pack()
336
337	typedef struct SASMP
338	{
339	uint32_t SAS_mp_PCBFirst; /*< Flat address of PCB head. /
340	uint32_t SAS_mp_pLockHandles; /*< Flat address of lock handles. /
341	uint32_t SAS_mp_cProcessors; /*< Flat address of CPU count variable. /
342	uint32_t SAS_mp_pIPCInfo; /*< Flat address of IPC info pointer variable. /
343	uint32_t SAS_mp_pIPCHistory; /*< Flat address of IPC history pointer. /
344	uint32_t SAS_mp_IPCHistoryIdx; /*< Flat address of IPC history index variable. /
345	uint32_t SAS_mp_pFirstPSA; /*< Flat address of PSA. Added later. /
346	uint32_t SAS_mp_pPSAPages; /*< Flat address of PSA pages. /
347	} SASMP;
348
349
350	typedef struct OS2GIS
351	{
352	uint32_t time;
353	uint32_t msecs;
354	uint8_t hour;
355	uint8_t minutes;
356	uint8_t seconds;
357	uint8_t hundredths;
358	int16_t timezone;
359	uint16_t cusecTimerInterval;
360	uint8_t day;
361	uint8_t month;
362	uint16_t year;
363	uint8_t weekday;
364	uint8_t uchMajorVersion;
365	uint8_t uchMinorVersion;
366	uint8_t chRevisionLetter;
367	uint8_t sgCurrent;
368	uint8_t sgMax;
369	uint8_t cHugeShift;
370	uint8_t fProtectModeOnly;
371	uint16_t pidForeground;
372	uint8_t fDynamicSched;
373	uint8_t csecMaxWait;
374	uint16_t cmsecMinSlice;
375	uint16_t cmsecMaxSlice;
376	uint16_t bootdrive;
377	uint8_t amecRAS[32];
378	uint8_t csgWindowableVioMax;
379	uint8_t csgPMMax;
380	uint16_t SIS_Syslog;
381	uint16_t SIS_MMIOBase;
382	uint16_t SIS_MMIOAddr;
383	uint8_t SIS_MaxVDMs;
384	uint8_t SIS_Reserved;
385	} OS2GIS;
386
387	typedef struct OS2LIS
388	{
389	uint16_t pidCurrent;
390	uint16_t pidParent;
391	uint16_t prtyCurrent;
392	uint16_t tidCurrent;
393	uint16_t sgCurrent;
394	uint8_t rfProcStatus;
395	uint8_t bReserved1;
396	uint16_t fForeground;
397	uint8_t typeProcess;
398	uint8_t bReserved2;
399	uint16_t selEnvironment;
400	uint16_t offCmdLine;
401	uint16_t cbDataSegment;
402	uint16_t cbStack;
403	uint16_t cbHeap;
404	uint16_t hmod;
405	uint16_t selDS;
406	} OS2LIS;
407
408
409	/*********************************************************************************************************************************
410	* Defined Constants And Macros *
411	*********************************************************************************************************************************/
412	/** The 'SAS ' signature. */
413	#define DIG_OS2_SAS_SIG RT_MAKE_U32_FROM_U8('S','A','S',' ')
414
415	/** OS/2Warp on little endian ASCII systems. */
416	#define DIG_OS2_MOD_TAG UINT64_C(0x43532f3257617270)
417
418
419	/*********************************************************************************************************************************
420	* Internal Functions *
421	*********************************************************************************************************************************/
422	static DECLCALLBACK(int) dbgDiggerOS2Init(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData);
423
424
425	static int dbgDiggerOS2DisplaySelectorAndInfoEx(PDBGDIGGEROS2 pThis, PCDBGFINFOHLP pHlp, uint16_t uSel, uint32_t off,
426	int cchWidth, const char *pszMessage, PDBGFSELINFO pSelInfo)
427	{
428	RT_ZERO(*pSelInfo);
429	int rc = pThis->pVMM->pfnDBGFR3SelQueryInfo(pThis->pUVM, 0 /idCpu/, uSel, DBGFSELQI_FLAGS_DT_GUEST, pSelInfo);
430	if (RT_SUCCESS(rc))
431	{
432	if (off == UINT32_MAX)
433	pHlp->pfnPrintf(pHlp, "%*s: %#06x (%RGv LB %#RX64 flags=%#x)\n",
434	cchWidth, pszMessage, uSel, pSelInfo->GCPtrBase, pSelInfo->cbLimit, pSelInfo->fFlags);
435	else
436	pHlp->pfnPrintf(pHlp, "%*s: %04x:%04x (%RGv LB %#RX64 flags=%#x)\n",
437	cchWidth, pszMessage, uSel, off, pSelInfo->GCPtrBase + off, pSelInfo->cbLimit - off, pSelInfo->fFlags);
438	}
439	else if (off == UINT32_MAX)
440	pHlp->pfnPrintf(pHlp, "%*s: %#06x (%Rrc)\n", cchWidth, pszMessage, uSel, rc);
441	else
442	pHlp->pfnPrintf(pHlp, "%*s: %04x:%04x (%Rrc)\n", cchWidth, pszMessage, uSel, off, rc);
443	return rc;
444	}
445
446	DECLINLINE(int) dbgDiggerOS2DisplaySelectorAndInfo(PDBGDIGGEROS2 pThis, PCDBGFINFOHLP pHlp, uint16_t uSel, uint32_t off,
447	int cchWidth, const char *pszMessage)
448	{
449	DBGFSELINFO SelInfo;
450	return dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, uSel, off, cchWidth, pszMessage, &SelInfo);
451	}
452
453
454	/**
455	* @callback_method_impl{FNDBGFHANDLEREXT,
456	* Display the OS/2 system anchor segment}
457	*/
458	static DECLCALLBACK(void) dbgDiggerOS2InfoSas(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
459	{
460	RT_NOREF(pszArgs);
461	PDBGDIGGEROS2 const pThis = (PDBGDIGGEROS2)pvUser;
462	PUVM const pUVM = pThis->pUVM;
463	PCVMMR3VTABLE const pVMM = pThis->pVMM;
464
465	DBGFSELINFO SelInfo;
466	int rc = pVMM->pfnDBGFR3SelQueryInfo(pUVM, 0 /idCpu/, 0x70, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
467	if (RT_FAILURE(rc))
468	{
469	pHlp->pfnPrintf(pHlp, "DBGFR3SelQueryInfo failed on selector 0x70: %Rrc\n", rc);
470	return;
471	}
472	pHlp->pfnPrintf(pHlp, "Selector 0x70: %RGv LB %#RX64 (flags %#x)\n",
473	SelInfo.GCPtrBase, (uint64_t)SelInfo.cbLimit, SelInfo.fFlags);
474
475	/*
476	* The SAS header.
477	*/
478	union
479	{
480	SAS Sas;
481	uint16_t au16Sas[sizeof(SAS) / sizeof(uint16_t)];
482	};
483	DBGFADDRESS Addr;
484	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SelInfo.GCPtrBase),
485	&Sas, sizeof(Sas));
486	if (RT_FAILURE(rc))
487	{
488	pHlp->pfnPrintf(pHlp, "Failed to read SAS header: %Rrc\n", rc);
489	return;
490	}
491	if (memcmp(&Sas.SAS_signature[0], SAS_SIGNATURE, sizeof(Sas.SAS_signature)) != 0)
492	{
493	pHlp->pfnPrintf(pHlp, "Invalid SAS signature: %#x %#x %#x %#x (expected %#x %#x %#x %#x)\n",
494	Sas.SAS_signature[0], Sas.SAS_signature[1], Sas.SAS_signature[2], Sas.SAS_signature[3],
495	SAS_SIGNATURE[0], SAS_SIGNATURE[1], SAS_SIGNATURE[2], SAS_SIGNATURE[3]);
496	return;
497	}
498	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Sas.SAS_flat_sel, UINT32_MAX, 15, "Flat kernel DS");
499	pHlp->pfnPrintf(pHlp, "SAS_tables_data: %#06x (%#RGv)\n", Sas.SAS_tables_data, SelInfo.GCPtrBase + Sas.SAS_tables_data);
500	pHlp->pfnPrintf(pHlp, "SAS_config_data: %#06x (%#RGv)\n", Sas.SAS_config_data, SelInfo.GCPtrBase + Sas.SAS_config_data);
501	pHlp->pfnPrintf(pHlp, " SAS_dd_data: %#06x (%#RGv)\n", Sas.SAS_dd_data, SelInfo.GCPtrBase + Sas.SAS_dd_data);
502	pHlp->pfnPrintf(pHlp, " SAS_vm_data: %#06x (%#RGv)\n", Sas.SAS_vm_data, SelInfo.GCPtrBase + Sas.SAS_vm_data);
503	pHlp->pfnPrintf(pHlp, " SAS_task_data: %#06x (%#RGv)\n", Sas.SAS_task_data, SelInfo.GCPtrBase + Sas.SAS_task_data);
504	pHlp->pfnPrintf(pHlp, " SAS_RAS_data: %#06x (%#RGv)\n", Sas.SAS_RAS_data, SelInfo.GCPtrBase + Sas.SAS_RAS_data);
505	pHlp->pfnPrintf(pHlp, " SAS_file_data: %#06x (%#RGv)\n", Sas.SAS_file_data, SelInfo.GCPtrBase + Sas.SAS_file_data);
506	pHlp->pfnPrintf(pHlp, " SAS_info_data: %#06x (%#RGv)\n", Sas.SAS_info_data, SelInfo.GCPtrBase + Sas.SAS_info_data);
507	bool fIncludeMP = true;
508	if (Sas.SAS_mp_data < sizeof(Sas))
509	fIncludeMP = false;
510	else
511	for (unsigned i = 2; i < RT_ELEMENTS(au16Sas) - 1; i++)
512	if (au16Sas[i] < sizeof(SAS))
513	{
514	fIncludeMP = false;
515	break;
516	}
517	if (fIncludeMP)
518	pHlp->pfnPrintf(pHlp, " SAS_mp_data: %#06x (%#RGv)\n", Sas.SAS_mp_data, SelInfo.GCPtrBase + Sas.SAS_mp_data);
519
520	/* shared databuf */
521	union
522	{
523	SASINFO Info;
524	} u;
525
526	/*
527	* Info data.
528	*/
529	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/,
530	pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SelInfo.GCPtrBase + Sas.SAS_info_data),
531	&u.Info, sizeof(u.Info));
532	if (RT_SUCCESS(rc))
533	{
534	pHlp->pfnPrintf(pHlp, "SASINFO:\n");
535	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, u.Info.SAS_info_global, UINT32_MAX, 28, "Global info segment");
536	pHlp->pfnPrintf(pHlp, "%28s: %#010x\n", "Local info segment", u.Info.SAS_info_local);
537	pHlp->pfnPrintf(pHlp, "%28s: %#010x\n", "Local info segment (RM)", u.Info.SAS_info_localRM);
538	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, u.Info.SAS_info_CDIB, UINT32_MAX, 28, "SAS_info_CDIB");
539	}
540	else
541	pHlp->pfnPrintf(pHlp, "Failed to read SAS info data: %Rrc\n", rc);
542
543	/** @todo more */
544	}
545
546
547	/**
548	* @callback_method_impl{FNDBGFHANDLEREXT,
549	* Display the OS/2 global info segment}
550	*/
551	static DECLCALLBACK(void) dbgDiggerOS2InfoGis(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
552	{
553	RT_NOREF(pszArgs);
554	PDBGDIGGEROS2 const pThis = (PDBGDIGGEROS2)pvUser;
555	PUVM const pUVM = pThis->pUVM;
556	PCVMMR3VTABLE const pVMM = pThis->pVMM;
557
558	DBGFSELINFO SelInfo;
559	int rc = dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, pThis->selGis, UINT32_MAX, 0, "Global info segment", &SelInfo);
560	if (RT_FAILURE(rc))
561	return;
562
563	/*
564	* Read the GIS.
565	*/
566	DBGFADDRESS Addr;
567	OS2GIS Gis;
568	RT_ZERO(Gis);
569	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SelInfo.GCPtrBase), &Gis,
570	RT_MIN(sizeof(Gis), SelInfo.cbLimit + 1));
571	if (RT_FAILURE(rc))
572	{
573	pHlp->pfnPrintf(pHlp, "Failed to read GIS: %Rrc\n", rc);
574	return;
575	}
576	pHlp->pfnPrintf(pHlp, " time: %#010x\n", Gis.time);
577	pHlp->pfnPrintf(pHlp, " msecs: %#010x\n", Gis.msecs);
578	pHlp->pfnPrintf(pHlp, " timestamp: %04u-%02u-%02u %02u:%02u:%02u.%02u\n",
579	Gis.year, Gis.month, Gis.day, Gis.hour, Gis.minutes, Gis.seconds, Gis.hundredths);
580	pHlp->pfnPrintf(pHlp, " timezone: %+2d (min delta)\n", (int)Gis.timezone);
581	pHlp->pfnPrintf(pHlp, " weekday: %u\n", Gis.weekday);
582	pHlp->pfnPrintf(pHlp, " cusecTimerInterval: %u\n", Gis.cusecTimerInterval);
583	pHlp->pfnPrintf(pHlp, " version: %u.%u\n", Gis.uchMajorVersion, Gis.uchMinorVersion);
584	pHlp->pfnPrintf(pHlp, " revision: %#04x (%c)\n", Gis.chRevisionLetter, Gis.chRevisionLetter);
585	pHlp->pfnPrintf(pHlp, " current screen grp: %#04x (%u)\n", Gis.sgCurrent, Gis.sgCurrent);
586	pHlp->pfnPrintf(pHlp, " max screen groups: %#04x (%u)\n", Gis.sgMax, Gis.sgMax);
587	pHlp->pfnPrintf(pHlp, "csgWindowableVioMax: %#x (%u)\n", Gis.csgWindowableVioMax, Gis.csgWindowableVioMax);
588	pHlp->pfnPrintf(pHlp, " csgPMMax: %#x (%u)\n", Gis.csgPMMax, Gis.csgPMMax);
589	pHlp->pfnPrintf(pHlp, " cHugeShift: %#04x\n", Gis.cHugeShift);
590	pHlp->pfnPrintf(pHlp, " fProtectModeOnly: %d\n", Gis.fProtectModeOnly);
591	pHlp->pfnPrintf(pHlp, " pidForeground: %#04x (%u)\n", Gis.pidForeground, Gis.pidForeground);
592	pHlp->pfnPrintf(pHlp, " fDynamicSched: %u\n", Gis.fDynamicSched);
593	pHlp->pfnPrintf(pHlp, " csecMaxWait: %u\n", Gis.csecMaxWait);
594	pHlp->pfnPrintf(pHlp, " cmsecMinSlice: %u\n", Gis.cmsecMinSlice);
595	pHlp->pfnPrintf(pHlp, " cmsecMaxSlice: %u\n", Gis.cmsecMaxSlice);
596	pHlp->pfnPrintf(pHlp, " bootdrive: %#x\n", Gis.bootdrive);
597	pHlp->pfnPrintf(pHlp, " amecRAS: %.32Rhxs\n", &Gis.amecRAS[0]);
598	pHlp->pfnPrintf(pHlp, " SIS_Syslog: %#06x (%u)\n", Gis.SIS_Syslog, Gis.SIS_Syslog);
599	pHlp->pfnPrintf(pHlp, " SIS_MMIOBase: %#06x\n", Gis.SIS_MMIOBase);
600	pHlp->pfnPrintf(pHlp, " SIS_MMIOAddr: %#06x\n", Gis.SIS_MMIOAddr);
601	pHlp->pfnPrintf(pHlp, " SIS_MaxVDMs: %#04x (%u)\n", Gis.SIS_MaxVDMs, Gis.SIS_MaxVDMs);
602	pHlp->pfnPrintf(pHlp, " SIS_Reserved: %#04x\n", Gis.SIS_Reserved);
603	}
604
605
606	/**
607	* @callback_method_impl{FNDBGFHANDLEREXT,
608	* Display the OS/2 local info segment}
609	*/
610	static DECLCALLBACK(void) dbgDiggerOS2InfoLis(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
611	{
612	RT_NOREF(pszArgs);
613	PDBGDIGGEROS2 const pThis = (PDBGDIGGEROS2)pvUser;
614	PUVM const pUVM = pThis->pUVM;
615	PCVMMR3VTABLE const pVMM = pThis->pVMM;
616
617	DBGFSELINFO SelInfo;
618	int rc = dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, pThis->Lis.sel, pThis->Lis.off, 19, "Local info segment", &SelInfo);
619	if (RT_FAILURE(rc))
620	return;
621
622	/*
623	* Read the LIS.
624	*/
625	DBGFADDRESS Addr;
626	OS2LIS Lis;
627	RT_ZERO(Lis);
628	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SelInfo.GCPtrBase + pThis->Lis.off),
629	&Lis, sizeof(Lis));
630	if (RT_FAILURE(rc))
631	{
632	pHlp->pfnPrintf(pHlp, "Failed to read LIS: %Rrc\n", rc);
633	return;
634	}
635	pHlp->pfnPrintf(pHlp, " pidCurrent: %#06x (%u)\n", Lis.pidCurrent, Lis.pidCurrent);
636	pHlp->pfnPrintf(pHlp, " pidParent: %#06x (%u)\n", Lis.pidParent, Lis.pidParent);
637	pHlp->pfnPrintf(pHlp, " prtyCurrent: %#06x (%u)\n", Lis.prtyCurrent, Lis.prtyCurrent);
638	pHlp->pfnPrintf(pHlp, " tidCurrent: %#06x (%u)\n", Lis.tidCurrent, Lis.tidCurrent);
639	pHlp->pfnPrintf(pHlp, " sgCurrent: %#06x (%u)\n", Lis.sgCurrent, Lis.sgCurrent);
640	pHlp->pfnPrintf(pHlp, " rfProcStatus: %#04x\n", Lis.rfProcStatus);
641	if (Lis.bReserved1)
642	pHlp->pfnPrintf(pHlp, " bReserved1: %#04x\n", Lis.bReserved1);
643	pHlp->pfnPrintf(pHlp, " fForeground: %#04x (%u)\n", Lis.fForeground, Lis.fForeground);
644	pHlp->pfnPrintf(pHlp, " typeProcess: %#04x (%u)\n", Lis.typeProcess, Lis.typeProcess);
645	if (Lis.bReserved2)
646	pHlp->pfnPrintf(pHlp, " bReserved2: %#04x\n", Lis.bReserved2);
647	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Lis.selEnvironment, UINT32_MAX, 19, "selEnvironment");
648	pHlp->pfnPrintf(pHlp, " offCmdLine: %#06x (%u)\n", Lis.offCmdLine, Lis.offCmdLine);
649	pHlp->pfnPrintf(pHlp, " cbDataSegment: %#06x (%u)\n", Lis.cbDataSegment, Lis.cbDataSegment);
650	pHlp->pfnPrintf(pHlp, " cbStack: %#06x (%u)\n", Lis.cbStack, Lis.cbStack);
651	pHlp->pfnPrintf(pHlp, " cbHeap: %#06x (%u)\n", Lis.cbHeap, Lis.cbHeap);
652	pHlp->pfnPrintf(pHlp, " hmod: %#06x\n", Lis.hmod); /** @todo look up the name*/
653	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Lis.selDS, UINT32_MAX, 19, "selDS");
654	}
655
656
657	/**
658	* @callback_method_impl{FNDBGFHANDLEREXT,
659	* Display the OS/2 panic message}
660	*/
661	static DECLCALLBACK(void) dbgDiggerOS2InfoPanic(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
662	{
663	RT_NOREF(pszArgs);
664	PDBGDIGGEROS2 const pThis = (PDBGDIGGEROS2)pvUser;
665	PUVM const pUVM = pThis->pUVM;
666	PCVMMR3VTABLE const pVMM = pThis->pVMM;
667
668	DBGFADDRESS HitAddr;
669	int rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &HitAddr, pThis->uKernelAddr),
670	pThis->cbKernel, 1, RT_STR_TUPLE("Exception in module:"), &HitAddr);
671	if (RT_FAILURE(rc))
672	rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /idCpu&/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &HitAddr, pThis->uKernelAddr),
673	pThis->cbKernel, 1, RT_STR_TUPLE("Exception in device driver:"), &HitAddr);
674	/** @todo support pre-2001 kernels w/o the module/drivce name. */
675	if (RT_SUCCESS(rc))
676	{
677	char szMsg[728 + 1];
678	RT_ZERO(szMsg);
679	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0, &HitAddr, szMsg, sizeof(szMsg) - 1);
680	if (szMsg[0] != '\0')
681	{
682	RTStrPurgeEncoding(szMsg);
683	char *psz = szMsg;
684	while (*psz != '\0')
685	{
686	char *pszEol = strchr(psz, '\r');
687	if (pszEol)
688	*pszEol = '\0';
689	pHlp->pfnPrintf(pHlp, "%s\n", psz);
690	if (!pszEol)
691	break;
692	psz = ++pszEol;
693	if (*psz == '\n')
694	psz++;
695	}
696	}
697	else
698	pHlp->pfnPrintf(pHlp, "DBGFR3MemRead -> %Rrc\n", rc);
699	}
700	else
701	pHlp->pfnPrintf(pHlp, "Unable to locate OS/2 panic message. (%Rrc)\n", rc);
702	}
703
704
705
706	/**
707	* @copydoc DBGFOSREG::pfnStackUnwindAssist
708	*/
709	static DECLCALLBACK(int) dbgDiggerOS2StackUnwindAssist(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData, VMCPUID idCpu,
710	PDBGFSTACKFRAME pFrame, PRTDBGUNWINDSTATE pState, PCCPUMCTX pInitialCtx,
711	RTDBGAS hAs, uint64_t *puScratch)
712	{
713	RT_NOREF(pUVM, pVMM, pvData, idCpu, pFrame, pState, pInitialCtx, hAs, puScratch);
714	return VINF_SUCCESS;
715	}
716
717
718	/**
719	* @copydoc DBGFOSREG::pfnQueryInterface
720	*/
721	static DECLCALLBACK(void ) dbgDiggerOS2QueryInterface(PUVM pUVM, PCVMMR3VTABLE pVMM, void pvData, DBGFOSINTERFACE enmIf)
722	{
723	RT_NOREF(pUVM, pVMM, pvData, enmIf);
724	return NULL;
725	}
726
727
728	/**
729	* @copydoc DBGFOSREG::pfnQueryVersion
730	*/
731	static DECLCALLBACK(int) dbgDiggerOS2QueryVersion(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData,
732	char *pszVersion, size_t cchVersion)
733	{
734	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
735	RT_NOREF(pUVM, pVMM);
736	Assert(pThis->fValid);
737
738	char *achOS2ProductType[32];
739	char pszOS2ProductType = (char )achOS2ProductType;
740
741	if (pThis->OS2MajorVersion == 10)
742	{
743	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 1.%02d", pThis->OS2MinorVersion);
744	pThis->enmVer = DBGDIGGEROS2VER_1_x;
745	}
746	else if (pThis->OS2MajorVersion == 20)
747	{
748	if (pThis->OS2MinorVersion < 30)
749	{
750	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 2.%02d", pThis->OS2MinorVersion);
751	pThis->enmVer = DBGDIGGEROS2VER_2_x;
752	}
753	else if (pThis->OS2MinorVersion < 40)
754	{
755	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp");
756	pThis->enmVer = DBGDIGGEROS2VER_3_0;
757	}
758	else if (pThis->OS2MinorVersion == 40)
759	{
760	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp 4");
761	pThis->enmVer = DBGDIGGEROS2VER_4_0;
762	}
763	else
764	{
765	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp %d.%d",
766	pThis->OS2MinorVersion / 10, pThis->OS2MinorVersion % 10);
767	pThis->enmVer = DBGDIGGEROS2VER_4_5;
768	}
769	}
770	RTStrPrintf(pszVersion, cchVersion, "%u.%u (%s)", pThis->OS2MajorVersion, pThis->OS2MinorVersion, pszOS2ProductType);
771	return VINF_SUCCESS;
772	}
773
774
775	/**
776	* @copydoc DBGFOSREG::pfnTerm
777	*/
778	static DECLCALLBACK(void) dbgDiggerOS2Term(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
779	{
780	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
781	Assert(pThis->fValid);
782
783	pVMM->pfnDBGFR3InfoDeregisterExternal(pUVM, "sas");
784	pVMM->pfnDBGFR3InfoDeregisterExternal(pUVM, "gis");
785	pVMM->pfnDBGFR3InfoDeregisterExternal(pUVM, "lis");
786	pVMM->pfnDBGFR3InfoDeregisterExternal(pUVM, "panic");
787
788	pThis->fValid = false;
789	}
790
791
792	/**
793	* @copydoc DBGFOSREG::pfnRefresh
794	*/
795	static DECLCALLBACK(int) dbgDiggerOS2Refresh(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
796	{
797	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
798	NOREF(pThis);
799	Assert(pThis->fValid);
800
801	/*
802	* For now we'll flush and reload everything.
803	*/
804	RTDBGAS hDbgAs = pVMM->pfnDBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
805	if (hDbgAs != NIL_RTDBGAS)
806	{
807	uint32_t iMod = RTDbgAsModuleCount(hDbgAs);
808	while (iMod-- > 0)
809	{
810	RTDBGMOD hMod = RTDbgAsModuleByIndex(hDbgAs, iMod);
811	if (hMod != NIL_RTDBGMOD)
812	{
813	if (RTDbgModGetTag(hMod) == DIG_OS2_MOD_TAG)
814	{
815	int rc = RTDbgAsModuleUnlink(hDbgAs, hMod);
816	AssertRC(rc);
817	}
818	RTDbgModRelease(hMod);
819	}
820	}
821	RTDbgAsRelease(hDbgAs);
822	}
823
824	dbgDiggerOS2Term(pUVM, pVMM, pvData);
825	return dbgDiggerOS2Init(pUVM, pVMM, pvData);
826	}
827
828
829	/** Buffer shared by dbgdiggerOS2ProcessModule and dbgDiggerOS2Init.*/
830	typedef union DBGDIGGEROS2BUF
831	{
832	uint8_t au8[0x2000];
833	uint16_t au16[0x2000/2];
834	uint32_t au32[0x2000/4];
835	RTUTF16 wsz[0x2000/2];
836	char ach[0x2000];
837	LDROTE aOtes[0x2000 / sizeof(LDROTE)];
838	SAS sas;
839	SASVM sasvm;
840	LDRMTE mte;
841	LDRSMTE smte;
842	LDROTE ote;
843	} DBGDIGGEROS2BUF;
844
845	/** Arguments dbgdiggerOS2ProcessModule passes to the module open callback. */
846	typedef struct
847	{
848	const char *pszModPath;
849	const char *pszModName;
850	LDRMTE const *pMte;
851	LDRSMTE const *pSwapMte;
852	} DBGDIGGEROS2OPEN;
853
854
855	/**
856	* @callback_method_impl{FNRTDBGCFGOPEN, Debug image/image searching callback.}
857	*/
858	static DECLCALLBACK(int) dbgdiggerOs2OpenModule(RTDBGCFG hDbgCfg, const char pszFilename, void pvUser1, void *pvUser2)
859	{
860	DBGDIGGEROS2OPEN pArgs = (DBGDIGGEROS2OPEN )pvUser1;
861
862	RTDBGMOD hDbgMod = NIL_RTDBGMOD;
863	int rc = RTDbgModCreateFromImage(&hDbgMod, pszFilename, pArgs->pszModName, RTLDRARCH_WHATEVER, hDbgCfg);
864	if (RT_SUCCESS(rc))
865	{
866	/** @todo Do some info matching before using it? */
867
868	*(PRTDBGMOD)pvUser2 = hDbgMod;
869	return VINF_CALLBACK_RETURN;
870	}
871	LogRel(("DbgDiggerOs2: dbgdiggerOs2OpenModule: %Rrc - %s\n", rc, pszFilename));
872	return rc;
873	}
874
875
876	static void dbgdiggerOS2ProcessModule(PUVM pUVM, PCVMMR3VTABLE pVMM, PDBGDIGGEROS2 pThis, DBGDIGGEROS2BUF *pBuf,
877	const char *pszCacheSubDir, RTDBGAS hAs, RTDBGCFG hDbgCfg)
878	{
879	RT_NOREF(pThis);
880
881	/*
882	* Save the MTE.
883	*/
884	static const char * const s_apszMteFmts[4] = { "Reserved1", "NE", "LX", "Reserved2" };
885	LDRMTE const Mte = pBuf->mte;
886	if ((Mte.mte_flags2 & MTEFORMATMASK) != MTEFORMATLX)
887	{
888	LogRel(("DbgDiggerOs2: MTE format not implemented: %s (%d)\n",
889	s_apszMteFmts[(Mte.mte_flags2 & MTEFORMATMASK)], Mte.mte_flags2 & MTEFORMATMASK));
890	return;
891	}
892
893	/*
894	* Don't load program modules into the global address spaces.
895	*/
896	if ((Mte.mte_flags1 & MTE1_CLASS_MASK) == MTE1_CLASS_PROGRAM)
897	{
898	LogRel(("DbgDiggerOs2: Program module, skipping.\n"));
899	return;
900	}
901
902	/*
903	* Try read the swappable MTE. Save it too.
904	*/
905	DBGFADDRESS Addr;
906	int rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, Mte.mte_swapmte),
907	&pBuf->smte, sizeof(pBuf->smte));
908	if (RT_FAILURE(rc))
909	{
910	LogRel(("DbgDiggerOs2: Error reading swap mte @ %RX32: %Rrc\n", Mte.mte_swapmte, rc));
911	return;
912	}
913	LDRSMTE const SwapMte = pBuf->smte;
914
915	/* Ignore empty modules or modules with too many segments. */
916	if (SwapMte.smte_objcnt == 0 \|\| SwapMte.smte_objcnt > RT_ELEMENTS(pBuf->aOtes))
917	{
918	LogRel(("DbgDiggerOs2: Skipping: smte_objcnt= %#RX32\n", SwapMte.smte_objcnt));
919	return;
920	}
921
922	/*
923	* Try read the path name, falling back on module name.
924	*/
925	char szModPath[260];
926	rc = VERR_READ_ERROR;
927	if (SwapMte.smte_path != 0 && SwapMte.smte_pathlen > 0)
928	{
929	uint32_t cbToRead = RT_MIN(SwapMte.smte_path, sizeof(szModPath) - 1);
930	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SwapMte.smte_path),
931	szModPath, cbToRead);
932	szModPath[cbToRead] = '\0';
933	}
934	if (RT_FAILURE(rc))
935	{
936	memcpy(szModPath, Mte.mte_modname, sizeof(Mte.mte_modname));
937	szModPath[sizeof(Mte.mte_modname)] = '\0';
938	RTStrStripR(szModPath);
939	}
940	LogRel(("DbgDiggerOS2: szModPath='%s'\n", szModPath));
941
942	/*
943	* Sanitize the module name.
944	*/
945	char szModName[16];
946	memcpy(szModName, Mte.mte_modname, sizeof(Mte.mte_modname));
947	szModName[sizeof(Mte.mte_modname)] = '\0';
948	RTStrStripR(szModName);
949
950	/*
951	* Read the object table into the buffer.
952	*/
953	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, SwapMte.smte_objtab),
954	&pBuf->aOtes[0], sizeof(pBuf->aOtes[0]) * SwapMte.smte_objcnt);
955	if (RT_FAILURE(rc))
956	{
957	LogRel(("DbgDiggerOs2: Error reading object table @ %#RX32 LB %#zx: %Rrc\n",
958	SwapMte.smte_objtab, sizeof(pBuf->aOtes[0]) * SwapMte.smte_objcnt, rc));
959	return;
960	}
961	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
962	{
963	LogRel(("DbgDiggerOs2: seg%u: %RX32 LB %#x\n", i, pBuf->aOtes[i].ote_base, pBuf->aOtes[i].ote_size));
964	/** @todo validate it. */
965	}
966
967	/*
968	* If it is the kernel, take down the general address range so we can easily search
969	* it all in one go when looking for panic messages and such.
970	*/
971	if (Mte.mte_flags1 & MTE1_DOSMOD)
972	{
973	uint32_t uMax = 0;
974	uint32_t uMin = UINT32_MAX;
975	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
976	if (pBuf->aOtes[i].ote_base > _512M)
977	{
978	if (pBuf->aOtes[i].ote_base < uMin)
979	uMin = pBuf->aOtes[i].ote_base;
980	uint32_t uTmp = pBuf->aOtes[i].ote_base + pBuf->aOtes[i].ote_size;
981	if (uTmp > uMax)
982	uMax = uTmp;
983	}
984	if (uMax != 0)
985	{
986	pThis->uKernelAddr = uMin;
987	pThis->cbKernel = uMax - uMin;
988	LogRel(("DbgDiggerOs2: High kernel range: %#RX32 LB %#RX32 (%#RX32)\n", uMin, pThis->cbKernel, uMax));
989	}
990	}
991
992	/*
993	* No need to continue without an address space (shouldn't happen).
994	*/
995	if (hAs == NIL_RTDBGAS)
996	return;
997
998	/*
999	* Try find a debug file for this module.
1000	*/
1001	RTDBGMOD hDbgMod = NIL_RTDBGMOD;
1002	if (hDbgCfg != NIL_RTDBGCFG)
1003	{
1004	DBGDIGGEROS2OPEN Args = { szModPath, szModName, &Mte, &SwapMte };
1005	RTDbgCfgOpenEx(hDbgCfg, szModPath, pszCacheSubDir, NULL,
1006	RT_OPSYS_OS2 \| RTDBGCFG_O_CASE_INSENSITIVE \| RTDBGCFG_O_EXECUTABLE_IMAGE
1007	\| RTDBGCFG_O_RECURSIVE \| RTDBGCFG_O_NO_SYSTEM_PATHS,
1008	dbgdiggerOs2OpenModule, &Args, &hDbgMod);
1009	}
1010
1011	/*
1012	* Fallback is a simple module into which we insert sections.
1013	*/
1014	uint32_t cSegments = SwapMte.smte_objcnt;
1015	if (hDbgMod == NIL_RTDBGMOD)
1016	{
1017	rc = RTDbgModCreate(&hDbgMod, szModName, 0 /cbSeg/, 0 /fFlags/);
1018	if (RT_SUCCESS(rc))
1019	{
1020	uint32_t uRva = 0;
1021	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
1022	{
1023	char szSegNm[16];
1024	RTStrPrintf(szSegNm, sizeof(szSegNm), "seg%u", i);
1025	rc = RTDbgModSegmentAdd(hDbgMod, uRva, pBuf->aOtes[i].ote_size, szSegNm, 0 /fFlags/, NULL);
1026	if (RT_FAILURE(rc))
1027	{
1028	LogRel(("DbgDiggerOs2: RTDbgModSegmentAdd failed (i=%u, ote_size=%#x): %Rrc\n",
1029	i, pBuf->aOtes[i].ote_size, rc));
1030	cSegments = i;
1031	break;
1032	}
1033	uRva += RT_ALIGN_32(pBuf->aOtes[i].ote_size, _4K);
1034	}
1035	}
1036	else
1037	{
1038	LogRel(("DbgDiggerOs2: RTDbgModCreate failed: %Rrc\n", rc));
1039	return;
1040	}
1041	}
1042
1043	/*
1044	* Tag the module and link its segments.
1045	*/
1046	rc = RTDbgModSetTag(hDbgMod, DIG_OS2_MOD_TAG);
1047	if (RT_SUCCESS(rc))
1048	{
1049	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
1050	if (pBuf->aOtes[i].ote_base != 0)
1051	{
1052	rc = RTDbgAsModuleLinkSeg(hAs, hDbgMod, i, pBuf->aOtes[i].ote_base, RTDBGASLINK_FLAGS_REPLACE /fFlags/);
1053	if (RT_FAILURE(rc))
1054	LogRel(("DbgDiggerOs2: RTDbgAsModuleLinkSeg failed (i=%u, ote_base=%#x): %Rrc\n",
1055	i, pBuf->aOtes[i].ote_base, rc));
1056	}
1057	}
1058	else
1059	LogRel(("DbgDiggerOs2: RTDbgModSetTag failed: %Rrc\n", rc));
1060	RTDbgModRelease(hDbgMod);
1061	}
1062
1063
1064	/**
1065	* @copydoc DBGFOSREG::pfnInit
1066	*/
1067	static DECLCALLBACK(int) dbgDiggerOS2Init(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
1068	{
1069	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1070	Assert(!pThis->fValid);
1071
1072	DBGDIGGEROS2BUF uBuf;
1073	DBGFADDRESS Addr;
1074	int rc;
1075
1076	/*
1077	* Determine the OS/2 version.
1078	*/
1079	/* Version info is at GIS:15h (major/minor/revision). */
1080	rc = pVMM->pfnDBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, pThis->selGis, 0x15);
1081	if (RT_FAILURE(rc))
1082	return VERR_NOT_SUPPORTED;
1083	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, uBuf.au32, sizeof(uint32_t));
1084	if (RT_FAILURE(rc))
1085	return VERR_NOT_SUPPORTED;
1086
1087	pThis->OS2MajorVersion = uBuf.au8[0];
1088	pThis->OS2MinorVersion = uBuf.au8[1];
1089
1090	pThis->fValid = true;
1091
1092	/*
1093	* Try use SAS to find the module list.
1094	*/
1095	rc = pVMM->pfnDBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, 0x00);
1096	if (RT_SUCCESS(rc))
1097	{
1098	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.sas, sizeof(uBuf.sas));
1099	if (RT_SUCCESS(rc))
1100	{
1101	rc = pVMM->pfnDBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, uBuf.sas.SAS_vm_data);
1102	if (RT_SUCCESS(rc))
1103	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.sasvm, sizeof(uBuf.sasvm));
1104	if (RT_SUCCESS(rc))
1105	{
1106	/*
1107	* Work the module list.
1108	*/
1109	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uBuf.sasvm.SAS_vm_all_mte),
1110	&uBuf.au32[0], sizeof(uBuf.au32[0]));
1111	if (RT_SUCCESS(rc))
1112	{
1113	uint32_t uOs2Krnl = UINT32_MAX;
1114	RTDBGCFG hDbgCfg = pVMM->pfnDBGFR3AsGetConfig(pUVM); /* (don't release this) */
1115	RTDBGAS hAs = pVMM->pfnDBGFR3AsResolveAndRetain(pUVM, DBGF_AS_GLOBAL);
1116
1117	char szCacheSubDir[24];
1118	RTStrPrintf(szCacheSubDir, sizeof(szCacheSubDir), "os2-%u.%u", pThis->OS2MajorVersion, pThis->OS2MinorVersion);
1119
1120	pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uBuf.au32[0]);
1121	while (Addr.FlatPtr != 0 && Addr.FlatPtr != UINT32_MAX)
1122	{
1123	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.mte, sizeof(uBuf.mte));
1124	if (RT_FAILURE(rc))
1125	break;
1126	LogRel(("DbgDiggerOs2: Module @ %#010RX32: %.8s %#x %#x\n", (uint32_t)Addr.FlatPtr,
1127	uBuf.mte.mte_modname, uBuf.mte.mte_flags1, uBuf.mte.mte_flags2));
1128	if (uBuf.mte.mte_flags1 & MTE1_DOSMOD)
1129	uOs2Krnl = (uint32_t)Addr.FlatPtr;
1130
1131	pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uBuf.mte.mte_link);
1132	dbgdiggerOS2ProcessModule(pUVM, pVMM, pThis, &uBuf, szCacheSubDir, hAs, hDbgCfg);
1133	}
1134
1135	/* Load the kernel again. To make sure we didn't drop any segments due
1136	to overlap/conflicts/whatever. */
1137	if (uOs2Krnl != UINT32_MAX)
1138	{
1139	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uOs2Krnl),
1140	&uBuf.mte, sizeof(uBuf.mte));
1141	if (RT_SUCCESS(rc))
1142	{
1143	LogRel(("DbgDiggerOs2: Module @ %#010RX32: %.8s %#x %#x [again]\n", (uint32_t)Addr.FlatPtr,
1144	uBuf.mte.mte_modname, uBuf.mte.mte_flags1, uBuf.mte.mte_flags2));
1145	dbgdiggerOS2ProcessModule(pUVM, pVMM, pThis, &uBuf, szCacheSubDir, hAs, hDbgCfg);
1146	}
1147	}
1148
1149	RTDbgAsRelease(hAs);
1150	}
1151	}
1152	}
1153	}
1154
1155	/*
1156	* Register info handlers.
1157	*/
1158	pVMM->pfnDBGFR3InfoRegisterExternal(pUVM, "sas", "Dumps the OS/2 system anchor block (SAS).", dbgDiggerOS2InfoSas, pThis);
1159	pVMM->pfnDBGFR3InfoRegisterExternal(pUVM, "gis", "Dumps the OS/2 global info segment (GIS).", dbgDiggerOS2InfoGis, pThis);
1160	pVMM->pfnDBGFR3InfoRegisterExternal(pUVM, "lis", "Dumps the OS/2 local info segment (current process).", dbgDiggerOS2InfoLis, pThis);
1161	pVMM->pfnDBGFR3InfoRegisterExternal(pUVM, "panic", "Dumps the OS/2 system panic message.", dbgDiggerOS2InfoPanic, pThis);
1162
1163	return VINF_SUCCESS;
1164	}
1165
1166
1167	/**
1168	* @copydoc DBGFOSREG::pfnProbe
1169	*/
1170	static DECLCALLBACK(bool) dbgDiggerOS2Probe(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
1171	{
1172	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1173	DBGFADDRESS Addr;
1174	int rc;
1175	uint16_t offInfo;
1176	union
1177	{
1178	uint8_t au8[8192];
1179	uint16_t au16[8192/2];
1180	uint32_t au32[8192/4];
1181	RTUTF16 wsz[8192/2];
1182	} u;
1183
1184	/*
1185	* If the DWORD at 70:0 is 'SAS ' it's quite unlikely that this wouldn't be OS/2.
1186	* Note: The SAS layout is similar between 16-bit and 32-bit OS/2, but not identical.
1187	* 32-bit OS/2 will have the flat kernel data selector at SAS:06. The selector is 168h
1188	* or similar. For 16-bit OS/2 the field contains a table offset into the SAS which will
1189	* be much smaller. Fun fact: The global infoseg selector in the SAS is bimodal in 16-bit
1190	* OS/2 and will work in real mode as well.
1191	*/
1192	do {
1193	rc = pVMM->pfnDBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, 0x00);
1194	if (RT_FAILURE(rc))
1195	break;
1196	rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, u.au32, 256);
1197	if (RT_FAILURE(rc))
1198	break;
1199	if (u.au32[0] != DIG_OS2_SAS_SIG)
1200	break;
1201
1202	/* This sure looks like OS/2, but a bit of paranoia won't hurt. */
1203	if (u.au16[2] >= u.au16[4])
1204	break;
1205
1206	/* If 4th word is bigger than 5th, it's the flat kernel mode selector. */
1207	if (u.au16[3] > u.au16[4])
1208	pThis->f32Bit = true;
1209
1210	/* Offset into info table is either at SAS:14h or SAS:16h. */
1211	if (pThis->f32Bit)
1212	offInfo = u.au16[0x14/2];
1213	else
1214	offInfo = u.au16[0x16/2];
1215
1216	/* The global infoseg selector is the first entry in the info table. */
1217	SASINFO const pInfo = (SASINFO const )&u.au8[offInfo];
1218	pThis->selGis = pInfo->SAS_info_global;
1219	pThis->Lis.sel = RT_HI_U16(pInfo->SAS_info_local);
1220	pThis->Lis.off = RT_LO_U16(pInfo->SAS_info_local);
1221	return true;
1222	} while (0);
1223
1224	return false;
1225	}
1226
1227
1228	/**
1229	* @copydoc DBGFOSREG::pfnDestruct
1230	*/
1231	static DECLCALLBACK(void) dbgDiggerOS2Destruct(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
1232	{
1233	RT_NOREF(pUVM, pVMM, pvData);
1234	}
1235
1236
1237	/**
1238	* @copydoc DBGFOSREG::pfnConstruct
1239	*/
1240	static DECLCALLBACK(int) dbgDiggerOS2Construct(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
1241	{
1242	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1243	pThis->fValid = false;
1244	pThis->f32Bit = false;
1245	pThis->enmVer = DBGDIGGEROS2VER_UNKNOWN;
1246	pThis->pUVM = pUVM;
1247	pThis->pVMM = pVMM;
1248	return VINF_SUCCESS;
1249	}
1250
1251
1252	const DBGFOSREG g_DBGDiggerOS2 =
1253	{
1254	/* .u32Magic = */ DBGFOSREG_MAGIC,
1255	/* .fFlags = */ 0,
1256	/* .cbData = */ sizeof(DBGDIGGEROS2),
1257	/* .szName = */ "OS/2",
1258	/* .pfnConstruct = */ dbgDiggerOS2Construct,
1259	/* .pfnDestruct = */ dbgDiggerOS2Destruct,
1260	/* .pfnProbe = */ dbgDiggerOS2Probe,
1261	/* .pfnInit = */ dbgDiggerOS2Init,
1262	/* .pfnRefresh = */ dbgDiggerOS2Refresh,
1263	/* .pfnTerm = */ dbgDiggerOS2Term,
1264	/* .pfnQueryVersion = */ dbgDiggerOS2QueryVersion,
1265	/* .pfnQueryInterface = */ dbgDiggerOS2QueryInterface,
1266	/* .pfnStackUnwindAssist = */ dbgDiggerOS2StackUnwindAssist,
1267	/* .u32EndMagic = */ DBGFOSREG_MAGIC
1268	};

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source: vbox/trunk/src/VBox/Debugger/DBGPlugInOS2.cpp@ 97405

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