DBGPlugInOS2.cpp@ 82366

Last change on this file since 82366 was 81369, checked in by vboxsync, 5 years ago
*: doxygen fixes
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 46.7 KB

Line
1	/* $Id: DBGPlugInOS2.cpp 81369 2019-10-18 21:13:03Z vboxsync $ */
2	/** @file
3	* DBGPlugInOS2 - Debugger and Guest OS Digger Plugin For OS/2.
4	*/
5
6	/*
7	* Copyright (C) 2009-2019 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_DBGF /// @todo add new log group.
23	#include "DBGPlugIns.h"
24	#include <VBox/vmm/dbgf.h>
25	#include <VBox/err.h>
26	#include <VBox/param.h>
27	#include <iprt/string.h>
28	#include <iprt/mem.h>
29	#include <iprt/stream.h>
30
31
32	/*********************************************************************************************************************************
33	* Structures and Typedefs *
34	*********************************************************************************************************************************/
35
36	typedef enum DBGDIGGEROS2VER
37	{
38	DBGDIGGEROS2VER_UNKNOWN,
39	DBGDIGGEROS2VER_1_x,
40	DBGDIGGEROS2VER_2_x,
41	DBGDIGGEROS2VER_3_0,
42	DBGDIGGEROS2VER_4_0,
43	DBGDIGGEROS2VER_4_5
44	} DBGDIGGEROS2VER;
45
46	/**
47	* OS/2 guest OS digger instance data.
48	*/
49	typedef struct DBGDIGGEROS2
50	{
51	/** The user-mode VM handle for use in info handlers. */
52	PUVM pUVM;
53
54	/** Whether the information is valid or not.
55	* (For fending off illegal interface method calls.) */
56	bool fValid;
57	/** 32-bit (true) or 16-bit (false) */
58	bool f32Bit;
59
60	/** The OS/2 guest version. */
61	DBGDIGGEROS2VER enmVer;
62	uint8_t OS2MajorVersion;
63	uint8_t OS2MinorVersion;
64
65	/** Guest's Global Info Segment selector. */
66	uint16_t selGis;
67	/** The 16:16 address of the LIS. */
68	RTFAR32 Lis;
69
70	/** The kernel virtual address (excluding DOSMVDMINSTDATA & DOSSWAPINSTDATA). */
71	uint32_t uKernelAddr;
72	/** The kernel size. */
73	uint32_t cbKernel;
74
75	} DBGDIGGEROS2;
76	/** Pointer to the OS/2 guest OS digger instance data. */
77	typedef DBGDIGGEROS2 *PDBGDIGGEROS2;
78
79	/**
80	* 32-bit OS/2 loader module table entry.
81	*/
82	typedef struct LDRMTE
83	{
84	uint16_t mte_flags2;
85	uint16_t mte_handle;
86	uint32_t mte_swapmte; /*< Pointer to LDRSMTE. /
87	uint32_t mte_link; /*< Pointer to next LDRMTE. /
88	uint32_t mte_flags1;
89	uint32_t mte_impmodcnt;
90	uint16_t mte_sfn;
91	uint16_t mte_usecnt;
92	char mte_modname[8];
93	uint32_t mte_RAS; /*< added later /
94	uint32_t mte_modver; /*< added even later. /
95	} LDRMTE;
96	/** @name LDRMTE::mte_flag2 values
97	* @{ */
98	#define MTEFORMATMASK UINT16_C(0x0003)
99	#define MTEFORMATR1 UINT16_C(0x0000)
100	#define MTEFORMATNE UINT16_C(0x0001)
101	#define MTEFORMATLX UINT16_C(0x0002)
102	#define MTEFORMATR2 UINT16_C(0x0003)
103	#define MTESYSTEMDLL UINT16_C(0x0004)
104	#define MTELOADORATTACH UINT16_C(0x0008)
105	#define MTECIRCLEREF UINT16_C(0x0010)
106	#define MTEFREEFIXUPS UINT16_C(0x0020) /* had different meaning earlier */
107	#define MTEPRELOADED UINT16_C(0x0040)
108	#define MTEGETMTEDONE UINT16_C(0x0080)
109	#define MTEPACKSEGDONE UINT16_C(0x0100)
110	#define MTE20LIELIST UINT16_C(0x0200)
111	#define MTESYSPROCESSED UINT16_C(0x0400)
112	#define MTEPSDMOD UINT16_C(0x0800)
113	#define MTEDLLONEXTLST UINT16_C(0x1000)
114	#define MTEPDUMPCIRCREF UINT16_C(0x2000)
115	/** @} */
116	/** @name LDRMTE::mte_flag1 values
117	* @{ */
118	#define MTE1_NOAUTODS UINT32_C(0x00000000)
119	#define MTE1_SOLO UINT32_C(0x00000001)
120	#define MTE1_INSTANCEDS UINT32_C(0x00000002)
121	#define MTE1_INSTLIBINIT UINT32_C(0x00000004)
122	#define MTE1_GINISETUP UINT32_C(0x00000008)
123	#define MTE1_NOINTERNFIXUPS UINT32_C(0x00000010)
124	#define MTE1_NOEXTERNFIXUPS UINT32_C(0x00000020)
125	#define MTE1_CLASS_ALL UINT32_C(0x00000000)
126	#define MTE1_CLASS_PROGRAM UINT32_C(0x00000040)
127	#define MTE1_CLASS_GLOBAL UINT32_C(0x00000080)
128	#define MTE1_CLASS_SPECIFIC UINT32_C(0x000000c0)
129	#define MTE1_CLASS_MASK UINT32_C(0x000000c0)
130	#define MTE1_MTEPROCESSED UINT32_C(0x00000100)
131	#define MTE1_USED UINT32_C(0x00000200)
132	#define MTE1_DOSLIB UINT32_C(0x00000400)
133	#define MTE1_DOSMOD UINT32_C(0x00000800) /*< The OS/2 kernel (DOSCALLS)./
134	#define MTE1_MEDIAFIXED UINT32_C(0x00001000)
135	#define MTE1_LDRINVALID UINT32_C(0x00002000)
136	#define MTE1_PROGRAMMOD UINT32_C(0x00000000)
137	#define MTE1_DEVDRVMOD UINT32_C(0x00004000)
138	#define MTE1_LIBRARYMOD UINT32_C(0x00008000)
139	#define MTE1_VDDMOD UINT32_C(0x00010000)
140	#define MTE1_MVDMMOD UINT32_C(0x00020000)
141	#define MTE1_INGRAPH UINT32_C(0x00040000)
142	#define MTE1_GINIDONE UINT32_C(0x00080000)
143	#define MTE1_ADDRALLOCED UINT32_C(0x00100000)
144	#define MTE1_FSDMOD UINT32_C(0x00200000)
145	#define MTE1_FSHMOD UINT32_C(0x00400000)
146	#define MTE1_LONGNAMES UINT32_C(0x00800000)
147	#define MTE1_MEDIACONTIG UINT32_C(0x01000000)
148	#define MTE1_MEDIA16M UINT32_C(0x02000000)
149	#define MTE1_SWAPONLOAD UINT32_C(0x04000000)
150	#define MTE1_PORTHOLE UINT32_C(0x08000000)
151	#define MTE1_MODPROT UINT32_C(0x10000000)
152	#define MTE1_NEWMOD UINT32_C(0x20000000)
153	#define MTE1_DLLTERM UINT32_C(0x40000000)
154	#define MTE1_SYMLOADED UINT32_C(0x80000000)
155	/** @} */
156
157
158	/**
159	* 32-bit OS/2 swappable module table entry.
160	*/
161	typedef struct LDRSMTE
162	{
163	uint32_t smte_mpages; /*< 0x00: module page count. /
164	uint32_t smte_startobj; /*< 0x04: Entrypoint segment number. /
165	uint32_t smte_eip; /*< 0x08: Entrypoint offset value. /
166	uint32_t smte_stackobj; /*< 0x0c: Stack segment number. /
167	uint32_t smte_esp; /*< 0x10: Stack offset value/
168	uint32_t smte_pageshift; /*< 0x14: Page shift value. /
169	uint32_t smte_fixupsize; /*< 0x18: Size of the fixup section. /
170	uint32_t smte_objtab; /*< 0x1c: Pointer to LDROTE array. /
171	uint32_t smte_objcnt; /*< 0x20: Number of segments. /
172	uint32_t smte_objmap; /*< 0x20: Address of the object page map. /
173	uint32_t smte_itermap; /*< 0x20: File offset of the iterated data map/
174	uint32_t smte_rsrctab; /*< 0x20: Pointer to resource table? /
175	uint32_t smte_rsrccnt; /*< 0x30: Number of resource table entries. /
176	uint32_t smte_restab; /*< 0x30: Pointer to the resident name table. /
177	uint32_t smte_enttab; /*< 0x30: Possibly entry point table address, if not file offset. /
178	uint32_t smte_fpagetab; /*< 0x30 /
179	uint32_t smte_frectab; /*< 0x40 /
180	uint32_t smte_impmod; /*< 0x44 /
181	uint32_t smte_impproc; /*< 0x48 /
182	uint32_t smte_datapage; /*< 0x4c /
183	uint32_t smte_nrestab; /*< 0x50 /
184	uint32_t smte_cbnrestab; /*< 0x54 /
185	uint32_t smte_autods; /*< 0x58 /
186	uint32_t smte_debuginfo; /*< 0x5c /
187	uint32_t smte_debuglen; /*< 0x60 /
188	uint32_t smte_heapsize; /*< 0x64 /
189	uint32_t smte_path; /*< 0x68 Address of full name string. /
190	uint16_t smte_semcount; /*< 0x6c /
191	uint16_t smte_semowner; /*< 0x6e /
192	uint32_t smte_pfilecache; /*< 0x70: Address of cached data if replace-module is used. /
193	uint32_t smte_stacksize; /*< 0x74: Stack size for .exe thread 1. /
194	uint16_t smte_alignshift; /*< 0x78: /
195	uint16_t smte_NEexpver; /*< 0x7a: /
196	uint16_t smte_pathlen; /*< 0x7c: Length of smte_path /
197	uint16_t smte_NEexetype; /*< 0x7e: /
198	uint16_t smte_csegpack; /*< 0x80: /
199	uint8_t smte_major_os; /*< 0x82: added later to lie about OS version /
200	uint8_t smte_minor_os; /*< 0x83: added later to lie about OS version /
201	} LDRSMTE;
202	AssertCompileSize(LDRSMTE, 0x84);
203
204	typedef struct LDROTE
205	{
206	uint32_t ote_size;
207	uint32_t ote_base;
208	uint32_t ote_flags;
209	uint32_t ote_pagemap;
210	uint32_t ote_mapsize;
211	union
212	{
213	uint32_t ote_vddaddr;
214	uint32_t ote_krnaddr;
215	struct
216	{
217	uint16_t ote_selector;
218	uint16_t ote_handle;
219	} s;
220	};
221	} LDROTE;
222	AssertCompileSize(LDROTE, 24);
223
224
225	/**
226	* 32-bit system anchor block segment header.
227	*/
228	typedef struct SAS
229	{
230	uint8_t SAS_signature[4];
231	uint16_t SAS_tables_data; /*< Offset to SASTABLES. /
232	uint16_t SAS_flat_sel; /*< 32-bit kernel DS (flat). /
233	uint16_t SAS_config_data; /*< Offset to SASCONFIG. /
234	uint16_t SAS_dd_data; /*< Offset to SASDD. /
235	uint16_t SAS_vm_data; /*< Offset to SASVM. /
236	uint16_t SAS_task_data; /*< Offset to SASTASK. /
237	uint16_t SAS_RAS_data; /*< Offset to SASRAS. /
238	uint16_t SAS_file_data; /*< Offset to SASFILE. /
239	uint16_t SAS_info_data; /*< Offset to SASINFO. /
240	uint16_t SAS_mp_data; /*< Offset to SASMP. SMP only. /
241	} SAS;
242	#define SAS_SIGNATURE "SAS "
243
244	typedef struct SASTABLES
245	{
246	uint16_t SAS_tbl_GDT;
247	uint16_t SAS_tbl_LDT;
248	uint16_t SAS_tbl_IDT;
249	uint16_t SAS_tbl_GDTPOOL;
250	} SASTABLES;
251
252	typedef struct SASCONFIG
253	{
254	uint16_t SAS_config_table;
255	} SASCONFIG;
256
257	typedef struct SASDD
258	{
259	uint16_t SAS_dd_bimodal_chain;
260	uint16_t SAS_dd_real_chain;
261	uint16_t SAS_dd_DPB_segment;
262	uint16_t SAS_dd_CDA_anchor_p;
263	uint16_t SAS_dd_CDA_anchor_r;
264	uint16_t SAS_dd_FSC;
265	} SASDD;
266
267	typedef struct SASVM
268	{
269	uint32_t SAS_vm_arena;
270	uint32_t SAS_vm_object;
271	uint32_t SAS_vm_context;
272	uint32_t SAS_vm_krnl_mte; /*< Flat address of kernel MTE. /
273	uint32_t SAS_vm_glbl_mte; /*< Flat address of global MTE list head pointer variable. /
274	uint32_t SAS_vm_pft;
275	uint32_t SAS_vm_prt;
276	uint32_t SAS_vm_swap;
277	uint32_t SAS_vm_idle_head;
278	uint32_t SAS_vm_free_head;
279	uint32_t SAS_vm_heap_info;
280	uint32_t SAS_vm_all_mte; /*< Flat address of global MTE list head pointer variable. /
281	} SASVM;
282
283
284	#pragma pack(1)
285	typedef struct SASTASK
286	{
287	uint16_t SAS_task_PTDA; /*< Current PTDA selector. /
288	uint32_t SAS_task_ptdaptrs; /*< Flat address of process tree root. /
289	uint32_t SAS_task_threadptrs; /*< Flat address array of thread pointer array. /
290	uint32_t SAS_task_tasknumber; /*< Flat address of the TaskNumber variable. /
291	uint32_t SAS_task_threadcount; /*< Flat address of the ThreadCount variable. /
292	} SASTASK;
293	#pragma pack()
294
295
296	#pragma pack(1)
297	typedef struct SASRAS
298	{
299	uint16_t SAS_RAS_STDA_p;
300	uint16_t SAS_RAS_STDA_r;
301	uint16_t SAS_RAS_event_mask;
302	uint32_t SAS_RAS_Perf_Buff;
303	} SASRAS;
304	#pragma pack()
305
306	typedef struct SASFILE
307	{
308	uint32_t SAS_file_MFT; /*< Handle. /
309	uint16_t SAS_file_SFT; /*< Selector. /
310	uint16_t SAS_file_VPB; /*< Selector. /
311	uint16_t SAS_file_CDS; /*< Selector. /
312	uint16_t SAS_file_buffers; /*< Selector. /
313	} SASFILE;
314
315	#pragma pack(1)
316	typedef struct SASINFO
317	{
318	uint16_t SAS_info_global; /*< GIS selector. /
319	uint32_t SAS_info_local; /*< 16:16 address of LIS for current task. /
320	uint32_t SAS_info_localRM;
321	uint16_t SAS_info_CDIB; /*< Selector. /
322	} SASINFO;
323	#pragma pack()
324
325	typedef struct SASMP
326	{
327	uint32_t SAS_mp_PCBFirst; /*< Flat address of PCB head. /
328	uint32_t SAS_mp_pLockHandles; /*< Flat address of lock handles. /
329	uint32_t SAS_mp_cProcessors; /*< Flat address of CPU count variable. /
330	uint32_t SAS_mp_pIPCInfo; /*< Flat address of IPC info pointer variable. /
331	uint32_t SAS_mp_pIPCHistory; /*< Flat address of IPC history pointer. /
332	uint32_t SAS_mp_IPCHistoryIdx; /*< Flat address of IPC history index variable. /
333	uint32_t SAS_mp_pFirstPSA; /*< Flat address of PSA. Added later. /
334	uint32_t SAS_mp_pPSAPages; /*< Flat address of PSA pages. /
335	} SASMP;
336
337
338	typedef struct OS2GIS
339	{
340	uint32_t time;
341	uint32_t msecs;
342	uint8_t hour;
343	uint8_t minutes;
344	uint8_t seconds;
345	uint8_t hundredths;
346	int16_t timezone;
347	uint16_t cusecTimerInterval;
348	uint8_t day;
349	uint8_t month;
350	uint16_t year;
351	uint8_t weekday;
352	uint8_t uchMajorVersion;
353	uint8_t uchMinorVersion;
354	uint8_t chRevisionLetter;
355	uint8_t sgCurrent;
356	uint8_t sgMax;
357	uint8_t cHugeShift;
358	uint8_t fProtectModeOnly;
359	uint16_t pidForeground;
360	uint8_t fDynamicSched;
361	uint8_t csecMaxWait;
362	uint16_t cmsecMinSlice;
363	uint16_t cmsecMaxSlice;
364	uint16_t bootdrive;
365	uint8_t amecRAS[32];
366	uint8_t csgWindowableVioMax;
367	uint8_t csgPMMax;
368	uint16_t SIS_Syslog;
369	uint16_t SIS_MMIOBase;
370	uint16_t SIS_MMIOAddr;
371	uint8_t SIS_MaxVDMs;
372	uint8_t SIS_Reserved;
373	} OS2GIS;
374
375	typedef struct OS2LIS
376	{
377	uint16_t pidCurrent;
378	uint16_t pidParent;
379	uint16_t prtyCurrent;
380	uint16_t tidCurrent;
381	uint16_t sgCurrent;
382	uint8_t rfProcStatus;
383	uint8_t bReserved1;
384	uint16_t fForeground;
385	uint8_t typeProcess;
386	uint8_t bReserved2;
387	uint16_t selEnvironment;
388	uint16_t offCmdLine;
389	uint16_t cbDataSegment;
390	uint16_t cbStack;
391	uint16_t cbHeap;
392	uint16_t hmod;
393	uint16_t selDS;
394	} OS2LIS;
395
396
397	/*********************************************************************************************************************************
398	* Defined Constants And Macros *
399	*********************************************************************************************************************************/
400	/** The 'SAS ' signature. */
401	#define DIG_OS2_SAS_SIG RT_MAKE_U32_FROM_U8('S','A','S',' ')
402
403	/** OS/2Warp on little endian ASCII systems. */
404	#define DIG_OS2_MOD_TAG UINT64_C(0x43532f3257617270)
405
406
407	/*********************************************************************************************************************************
408	* Internal Functions *
409	*********************************************************************************************************************************/
410	static DECLCALLBACK(int) dbgDiggerOS2Init(PUVM pUVM, void *pvData);
411
412
413	static int dbgDiggerOS2DisplaySelectorAndInfoEx(PDBGDIGGEROS2 pThis, PCDBGFINFOHLP pHlp, uint16_t uSel, uint32_t off,
414	int cchWidth, const char *pszMessage, PDBGFSELINFO pSelInfo)
415	{
416	RT_ZERO(*pSelInfo);
417	int rc = DBGFR3SelQueryInfo(pThis->pUVM, 0 /idCpu/, uSel, DBGFSELQI_FLAGS_DT_GUEST, pSelInfo);
418	if (RT_SUCCESS(rc))
419	{
420	if (off == UINT32_MAX)
421	pHlp->pfnPrintf(pHlp, "%*s: %#06x (%RGv LB %#RX64 flags=%#x)\n",
422	cchWidth, pszMessage, uSel, pSelInfo->GCPtrBase, pSelInfo->cbLimit, pSelInfo->fFlags);
423	else
424	pHlp->pfnPrintf(pHlp, "%*s: %04x:%04x (%RGv LB %#RX64 flags=%#x)\n",
425	cchWidth, pszMessage, uSel, off, pSelInfo->GCPtrBase + off, pSelInfo->cbLimit - off, pSelInfo->fFlags);
426	}
427	else if (off == UINT32_MAX)
428	pHlp->pfnPrintf(pHlp, "%*s: %#06x (%Rrc)\n", cchWidth, pszMessage, uSel, rc);
429	else
430	pHlp->pfnPrintf(pHlp, "%*s: %04x:%04x (%Rrc)\n", cchWidth, pszMessage, uSel, off, rc);
431	return rc;
432	}
433
434	DECLINLINE(int) dbgDiggerOS2DisplaySelectorAndInfo(PDBGDIGGEROS2 pThis, PCDBGFINFOHLP pHlp, uint16_t uSel, uint32_t off,
435	int cchWidth, const char *pszMessage)
436	{
437	DBGFSELINFO SelInfo;
438	return dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, uSel, off, cchWidth, pszMessage, &SelInfo);
439	}
440
441
442	/**
443	* @callback_method_impl{FNDBGFHANDLEREXT,
444	* Display the OS/2 system anchor segment}
445	*/
446	static DECLCALLBACK(void) dbgDiggerOS2InfoSas(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
447	{
448	RT_NOREF(pszArgs);
449	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvUser;
450	DBGFSELINFO SelInfo;
451	int rc = DBGFR3SelQueryInfo(pThis->pUVM, 0 /idCpu/, 0x70, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
452	if (RT_FAILURE(rc))
453	{
454	pHlp->pfnPrintf(pHlp, "DBGFR3SelQueryInfo failed on selector 0x70: %Rrc\n", rc);
455	return;
456	}
457	pHlp->pfnPrintf(pHlp, "Selector 0x70: %RGv LB %#RX64 (flags %#x)\n",
458	SelInfo.GCPtrBase, (uint64_t)SelInfo.cbLimit, SelInfo.fFlags);
459
460	/*
461	* The SAS header.
462	*/
463	union
464	{
465	SAS Sas;
466	uint16_t au16Sas[sizeof(SAS) / sizeof(uint16_t)];
467	};
468	DBGFADDRESS Addr;
469	rc = DBGFR3MemRead(pThis->pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pThis->pUVM, &Addr, SelInfo.GCPtrBase), &Sas, sizeof(Sas));
470	if (RT_FAILURE(rc))
471	{
472	pHlp->pfnPrintf(pHlp, "Failed to read SAS header: %Rrc\n", rc);
473	return;
474	}
475	if (memcmp(&Sas.SAS_signature[0], SAS_SIGNATURE, sizeof(Sas.SAS_signature)) != 0)
476	{
477	pHlp->pfnPrintf(pHlp, "Invalid SAS signature: %#x %#x %#x %#x (expected %#x %#x %#x %#x)\n",
478	Sas.SAS_signature[0], Sas.SAS_signature[1], Sas.SAS_signature[2], Sas.SAS_signature[3],
479	SAS_SIGNATURE[0], SAS_SIGNATURE[1], SAS_SIGNATURE[2], SAS_SIGNATURE[3]);
480	return;
481	}
482	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Sas.SAS_flat_sel, UINT32_MAX, 15, "Flat kernel DS");
483	pHlp->pfnPrintf(pHlp, "SAS_tables_data: %#06x (%#RGv)\n", Sas.SAS_tables_data, SelInfo.GCPtrBase + Sas.SAS_tables_data);
484	pHlp->pfnPrintf(pHlp, "SAS_config_data: %#06x (%#RGv)\n", Sas.SAS_config_data, SelInfo.GCPtrBase + Sas.SAS_config_data);
485	pHlp->pfnPrintf(pHlp, " SAS_dd_data: %#06x (%#RGv)\n", Sas.SAS_dd_data, SelInfo.GCPtrBase + Sas.SAS_dd_data);
486	pHlp->pfnPrintf(pHlp, " SAS_vm_data: %#06x (%#RGv)\n", Sas.SAS_vm_data, SelInfo.GCPtrBase + Sas.SAS_vm_data);
487	pHlp->pfnPrintf(pHlp, " SAS_task_data: %#06x (%#RGv)\n", Sas.SAS_task_data, SelInfo.GCPtrBase + Sas.SAS_task_data);
488	pHlp->pfnPrintf(pHlp, " SAS_RAS_data: %#06x (%#RGv)\n", Sas.SAS_RAS_data, SelInfo.GCPtrBase + Sas.SAS_RAS_data);
489	pHlp->pfnPrintf(pHlp, " SAS_file_data: %#06x (%#RGv)\n", Sas.SAS_file_data, SelInfo.GCPtrBase + Sas.SAS_file_data);
490	pHlp->pfnPrintf(pHlp, " SAS_info_data: %#06x (%#RGv)\n", Sas.SAS_info_data, SelInfo.GCPtrBase + Sas.SAS_info_data);
491	bool fIncludeMP = true;
492	if (Sas.SAS_mp_data < sizeof(Sas))
493	fIncludeMP = false;
494	else
495	for (unsigned i = 2; i < RT_ELEMENTS(au16Sas) - 1; i++)
496	if (au16Sas[i] < sizeof(SAS))
497	{
498	fIncludeMP = false;
499	break;
500	}
501	if (fIncludeMP)
502	pHlp->pfnPrintf(pHlp, " SAS_mp_data: %#06x (%#RGv)\n", Sas.SAS_mp_data, SelInfo.GCPtrBase + Sas.SAS_mp_data);
503
504	/* shared databuf */
505	union
506	{
507	SASINFO Info;
508	} u;
509
510	/*
511	* Info data.
512	*/
513	rc = DBGFR3MemRead(pThis->pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pThis->pUVM, &Addr, SelInfo.GCPtrBase + Sas.SAS_info_data),
514	&u.Info, sizeof(u.Info));
515	if (RT_SUCCESS(rc))
516	{
517	pHlp->pfnPrintf(pHlp, "SASINFO:\n");
518	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, u.Info.SAS_info_global, UINT32_MAX, 28, "Global info segment");
519	pHlp->pfnPrintf(pHlp, "%28s: %#010x\n", "Local info segment", u.Info.SAS_info_local);
520	pHlp->pfnPrintf(pHlp, "%28s: %#010x\n", "Local info segment (RM)", u.Info.SAS_info_localRM);
521	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, u.Info.SAS_info_CDIB, UINT32_MAX, 28, "SAS_info_CDIB");
522	}
523	else
524	pHlp->pfnPrintf(pHlp, "Failed to read SAS info data: %Rrc\n", rc);
525
526	/** @todo more */
527	}
528
529
530	/**
531	* @callback_method_impl{FNDBGFHANDLEREXT,
532	* Display the OS/2 global info segment}
533	*/
534	static DECLCALLBACK(void) dbgDiggerOS2InfoGis(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
535	{
536	RT_NOREF(pszArgs);
537	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvUser;
538	DBGFSELINFO SelInfo;
539	int rc = dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, pThis->selGis, UINT32_MAX, 0, "Global info segment", &SelInfo);
540	if (RT_FAILURE(rc))
541	return;
542
543	/*
544	* Read the GIS.
545	*/
546	DBGFADDRESS Addr;
547	OS2GIS Gis;
548	RT_ZERO(Gis);
549	rc = DBGFR3MemRead(pThis->pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pThis->pUVM, &Addr, SelInfo.GCPtrBase), &Gis,
550	RT_MIN(sizeof(Gis), SelInfo.cbLimit + 1));
551	if (RT_FAILURE(rc))
552	{
553	pHlp->pfnPrintf(pHlp, "Failed to read GIS: %Rrc\n", rc);
554	return;
555	}
556	pHlp->pfnPrintf(pHlp, " time: %#010x\n", Gis.time);
557	pHlp->pfnPrintf(pHlp, " msecs: %#010x\n", Gis.msecs);
558	pHlp->pfnPrintf(pHlp, " timestamp: %04u-%02u-%02u %02u:%02u:%02u.%02u\n",
559	Gis.year, Gis.month, Gis.day, Gis.hour, Gis.minutes, Gis.seconds, Gis.hundredths);
560	pHlp->pfnPrintf(pHlp, " timezone: %+2d (min delta)\n", (int)Gis.timezone);
561	pHlp->pfnPrintf(pHlp, " weekday: %u\n", Gis.weekday);
562	pHlp->pfnPrintf(pHlp, " cusecTimerInterval: %u\n", Gis.cusecTimerInterval);
563	pHlp->pfnPrintf(pHlp, " version: %u.%u\n", Gis.uchMajorVersion, Gis.uchMinorVersion);
564	pHlp->pfnPrintf(pHlp, " revision: %#04x (%c)\n", Gis.chRevisionLetter, Gis.chRevisionLetter);
565	pHlp->pfnPrintf(pHlp, " current screen grp: %#04x (%u)\n", Gis.sgCurrent, Gis.sgCurrent);
566	pHlp->pfnPrintf(pHlp, " max screen groups: %#04x (%u)\n", Gis.sgMax, Gis.sgMax);
567	pHlp->pfnPrintf(pHlp, "csgWindowableVioMax: %#x (%u)\n", Gis.csgWindowableVioMax, Gis.csgWindowableVioMax);
568	pHlp->pfnPrintf(pHlp, " csgPMMax: %#x (%u)\n", Gis.csgPMMax, Gis.csgPMMax);
569	pHlp->pfnPrintf(pHlp, " cHugeShift: %#04x\n", Gis.cHugeShift);
570	pHlp->pfnPrintf(pHlp, " fProtectModeOnly: %d\n", Gis.fProtectModeOnly);
571	pHlp->pfnPrintf(pHlp, " pidForeground: %#04x (%u)\n", Gis.pidForeground, Gis.pidForeground);
572	pHlp->pfnPrintf(pHlp, " fDynamicSched: %u\n", Gis.fDynamicSched);
573	pHlp->pfnPrintf(pHlp, " csecMaxWait: %u\n", Gis.csecMaxWait);
574	pHlp->pfnPrintf(pHlp, " cmsecMinSlice: %u\n", Gis.cmsecMinSlice);
575	pHlp->pfnPrintf(pHlp, " cmsecMaxSlice: %u\n", Gis.cmsecMaxSlice);
576	pHlp->pfnPrintf(pHlp, " bootdrive: %#x\n", Gis.bootdrive);
577	pHlp->pfnPrintf(pHlp, " amecRAS: %.32Rhxs\n", &Gis.amecRAS[0]);
578	pHlp->pfnPrintf(pHlp, " SIS_Syslog: %#06x (%u)\n", Gis.SIS_Syslog, Gis.SIS_Syslog);
579	pHlp->pfnPrintf(pHlp, " SIS_MMIOBase: %#06x\n", Gis.SIS_MMIOBase);
580	pHlp->pfnPrintf(pHlp, " SIS_MMIOAddr: %#06x\n", Gis.SIS_MMIOAddr);
581	pHlp->pfnPrintf(pHlp, " SIS_MaxVDMs: %#04x (%u)\n", Gis.SIS_MaxVDMs, Gis.SIS_MaxVDMs);
582	pHlp->pfnPrintf(pHlp, " SIS_Reserved: %#04x\n", Gis.SIS_Reserved);
583	}
584
585
586	/**
587	* @callback_method_impl{FNDBGFHANDLEREXT,
588	* Display the OS/2 local info segment}
589	*/
590	static DECLCALLBACK(void) dbgDiggerOS2InfoLis(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
591	{
592	RT_NOREF(pszArgs);
593	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvUser;
594	DBGFSELINFO SelInfo;
595	int rc = dbgDiggerOS2DisplaySelectorAndInfoEx(pThis, pHlp, pThis->Lis.sel, pThis->Lis.off, 19, "Local info segment", &SelInfo);
596	if (RT_FAILURE(rc))
597	return;
598
599	/*
600	* Read the LIS.
601	*/
602	DBGFADDRESS Addr;
603	OS2LIS Lis;
604	RT_ZERO(Lis);
605	rc = DBGFR3MemRead(pThis->pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pThis->pUVM, &Addr, SelInfo.GCPtrBase + pThis->Lis.off),
606	&Lis, sizeof(Lis));
607	if (RT_FAILURE(rc))
608	{
609	pHlp->pfnPrintf(pHlp, "Failed to read LIS: %Rrc\n", rc);
610	return;
611	}
612	pHlp->pfnPrintf(pHlp, " pidCurrent: %#06x (%u)\n", Lis.pidCurrent, Lis.pidCurrent);
613	pHlp->pfnPrintf(pHlp, " pidParent: %#06x (%u)\n", Lis.pidParent, Lis.pidParent);
614	pHlp->pfnPrintf(pHlp, " prtyCurrent: %#06x (%u)\n", Lis.prtyCurrent, Lis.prtyCurrent);
615	pHlp->pfnPrintf(pHlp, " tidCurrent: %#06x (%u)\n", Lis.tidCurrent, Lis.tidCurrent);
616	pHlp->pfnPrintf(pHlp, " sgCurrent: %#06x (%u)\n", Lis.sgCurrent, Lis.sgCurrent);
617	pHlp->pfnPrintf(pHlp, " rfProcStatus: %#04x\n", Lis.rfProcStatus);
618	if (Lis.bReserved1)
619	pHlp->pfnPrintf(pHlp, " bReserved1: %#04x\n", Lis.bReserved1);
620	pHlp->pfnPrintf(pHlp, " fForeground: %#04x (%u)\n", Lis.fForeground, Lis.fForeground);
621	pHlp->pfnPrintf(pHlp, " typeProcess: %#04x (%u)\n", Lis.typeProcess, Lis.typeProcess);
622	if (Lis.bReserved2)
623	pHlp->pfnPrintf(pHlp, " bReserved2: %#04x\n", Lis.bReserved2);
624	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Lis.selEnvironment, UINT32_MAX, 19, "selEnvironment");
625	pHlp->pfnPrintf(pHlp, " offCmdLine: %#06x (%u)\n", Lis.offCmdLine, Lis.offCmdLine);
626	pHlp->pfnPrintf(pHlp, " cbDataSegment: %#06x (%u)\n", Lis.cbDataSegment, Lis.cbDataSegment);
627	pHlp->pfnPrintf(pHlp, " cbStack: %#06x (%u)\n", Lis.cbStack, Lis.cbStack);
628	pHlp->pfnPrintf(pHlp, " cbHeap: %#06x (%u)\n", Lis.cbHeap, Lis.cbHeap);
629	pHlp->pfnPrintf(pHlp, " hmod: %#06x\n", Lis.hmod); /** @todo look up the name*/
630	dbgDiggerOS2DisplaySelectorAndInfo(pThis, pHlp, Lis.selDS, UINT32_MAX, 19, "selDS");
631	}
632
633
634	/**
635	* @callback_method_impl{FNDBGFHANDLEREXT,
636	* Display the OS/2 panic message}
637	*/
638	static DECLCALLBACK(void) dbgDiggerOS2InfoPanic(void pvUser, PCDBGFINFOHLP pHlp, const char pszArgs)
639	{
640	RT_NOREF(pszArgs);
641	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvUser;
642	DBGFADDRESS HitAddr;
643	int rc = DBGFR3MemScan(pThis->pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pThis->pUVM, &HitAddr, pThis->uKernelAddr),
644	pThis->cbKernel, 1, RT_STR_TUPLE("Exception in module:"), &HitAddr);
645	if (RT_FAILURE(rc))
646	rc = DBGFR3MemScan(pThis->pUVM, 0 /idCpu&/, DBGFR3AddrFromFlat(pThis->pUVM, &HitAddr, pThis->uKernelAddr),
647	pThis->cbKernel, 1, RT_STR_TUPLE("Exception in device driver:"), &HitAddr);
648	/** @todo support pre-2001 kernels w/o the module/drivce name. */
649	if (RT_SUCCESS(rc))
650	{
651	char szMsg[728 + 1];
652	RT_ZERO(szMsg);
653	rc = DBGFR3MemRead(pThis->pUVM, 0, &HitAddr, szMsg, sizeof(szMsg) - 1);
654	if (szMsg[0] != '\0')
655	{
656	RTStrPurgeEncoding(szMsg);
657	char *psz = szMsg;
658	while (*psz != '\0')
659	{
660	char *pszEol = strchr(psz, '\r');
661	if (pszEol)
662	*pszEol = '\0';
663	pHlp->pfnPrintf(pHlp, "%s\n", psz);
664	if (!pszEol)
665	break;
666	psz = ++pszEol;
667	if (*psz == '\n')
668	psz++;
669	}
670	}
671	else
672	pHlp->pfnPrintf(pHlp, "DBGFR3MemRead -> %Rrc\n", rc);
673	}
674	else
675	pHlp->pfnPrintf(pHlp, "Unable to locate OS/2 panic message. (%Rrc)\n", rc);
676	}
677
678
679
680	/**
681	* @copydoc DBGFOSREG::pfnStackUnwindAssist
682	*/
683	static DECLCALLBACK(int) dbgDiggerOS2StackUnwindAssist(PUVM pUVM, void *pvData, VMCPUID idCpu, PDBGFSTACKFRAME pFrame,
684	PRTDBGUNWINDSTATE pState, PCCPUMCTX pInitialCtx, RTDBGAS hAs,
685	uint64_t *puScratch)
686	{
687	RT_NOREF(pUVM, pvData, idCpu, pFrame, pState, pInitialCtx, hAs, puScratch);
688	return VINF_SUCCESS;
689	}
690
691
692	/**
693	* @copydoc DBGFOSREG::pfnQueryInterface
694	*/
695	static DECLCALLBACK(void ) dbgDiggerOS2QueryInterface(PUVM pUVM, void pvData, DBGFOSINTERFACE enmIf)
696	{
697	RT_NOREF3(pUVM, pvData, enmIf);
698	return NULL;
699	}
700
701
702	/**
703	* @copydoc DBGFOSREG::pfnQueryVersion
704	*/
705	static DECLCALLBACK(int) dbgDiggerOS2QueryVersion(PUVM pUVM, void pvData, char pszVersion, size_t cchVersion)
706	{
707	RT_NOREF1(pUVM);
708	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
709	Assert(pThis->fValid);
710	char *achOS2ProductType[32];
711	char pszOS2ProductType = (char )achOS2ProductType;
712
713	if (pThis->OS2MajorVersion == 10)
714	{
715	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 1.%02d", pThis->OS2MinorVersion);
716	pThis->enmVer = DBGDIGGEROS2VER_1_x;
717	}
718	else if (pThis->OS2MajorVersion == 20)
719	{
720	if (pThis->OS2MinorVersion < 30)
721	{
722	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 2.%02d", pThis->OS2MinorVersion);
723	pThis->enmVer = DBGDIGGEROS2VER_2_x;
724	}
725	else if (pThis->OS2MinorVersion < 40)
726	{
727	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp");
728	pThis->enmVer = DBGDIGGEROS2VER_3_0;
729	}
730	else if (pThis->OS2MinorVersion == 40)
731	{
732	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp 4");
733	pThis->enmVer = DBGDIGGEROS2VER_4_0;
734	}
735	else
736	{
737	RTStrPrintf(pszOS2ProductType, sizeof(achOS2ProductType), "OS/2 Warp %d.%d",
738	pThis->OS2MinorVersion / 10, pThis->OS2MinorVersion % 10);
739	pThis->enmVer = DBGDIGGEROS2VER_4_5;
740	}
741	}
742	RTStrPrintf(pszVersion, cchVersion, "%u.%u (%s)", pThis->OS2MajorVersion, pThis->OS2MinorVersion, pszOS2ProductType);
743	return VINF_SUCCESS;
744	}
745
746
747	/**
748	* @copydoc DBGFOSREG::pfnTerm
749	*/
750	static DECLCALLBACK(void) dbgDiggerOS2Term(PUVM pUVM, void *pvData)
751	{
752	RT_NOREF1(pUVM);
753	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
754	Assert(pThis->fValid);
755
756	DBGFR3InfoDeregisterExternal(pUVM, "sas");
757	DBGFR3InfoDeregisterExternal(pUVM, "gis");
758	DBGFR3InfoDeregisterExternal(pUVM, "lis");
759	DBGFR3InfoDeregisterExternal(pUVM, "panic");
760
761	pThis->fValid = false;
762	}
763
764
765	/**
766	* @copydoc DBGFOSREG::pfnRefresh
767	*/
768	static DECLCALLBACK(int) dbgDiggerOS2Refresh(PUVM pUVM, void *pvData)
769	{
770	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
771	NOREF(pThis);
772	Assert(pThis->fValid);
773
774	/*
775	* For now we'll flush and reload everything.
776	*/
777	RTDBGAS hDbgAs = DBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
778	if (hDbgAs != NIL_RTDBGAS)
779	{
780	uint32_t iMod = RTDbgAsModuleCount(hDbgAs);
781	while (iMod-- > 0)
782	{
783	RTDBGMOD hMod = RTDbgAsModuleByIndex(hDbgAs, iMod);
784	if (hMod != NIL_RTDBGMOD)
785	{
786	if (RTDbgModGetTag(hMod) == DIG_OS2_MOD_TAG)
787	{
788	int rc = RTDbgAsModuleUnlink(hDbgAs, hMod);
789	AssertRC(rc);
790	}
791	RTDbgModRelease(hMod);
792	}
793	}
794	RTDbgAsRelease(hDbgAs);
795	}
796
797	dbgDiggerOS2Term(pUVM, pvData);
798	return dbgDiggerOS2Init(pUVM, pvData);
799	}
800
801
802	/** Buffer shared by dbgdiggerOS2ProcessModule and dbgDiggerOS2Init.*/
803	typedef union DBGDIGGEROS2BUF
804	{
805	uint8_t au8[0x2000];
806	uint16_t au16[0x2000/2];
807	uint32_t au32[0x2000/4];
808	RTUTF16 wsz[0x2000/2];
809	char ach[0x2000];
810	LDROTE aOtes[0x2000 / sizeof(LDROTE)];
811	SAS sas;
812	SASVM sasvm;
813	LDRMTE mte;
814	LDRSMTE smte;
815	LDROTE ote;
816	} DBGDIGGEROS2BUF;
817
818	/** Arguments dbgdiggerOS2ProcessModule passes to the module open callback. */
819	typedef struct
820	{
821	const char *pszModPath;
822	const char *pszModName;
823	LDRMTE const *pMte;
824	LDRSMTE const *pSwapMte;
825	} DBGDIGGEROS2OPEN;
826
827
828	/**
829	* @callback_method_impl{FNRTDBGCFGOPEN, Debug image/image searching callback.}
830	*/
831	static DECLCALLBACK(int) dbgdiggerOs2OpenModule(RTDBGCFG hDbgCfg, const char pszFilename, void pvUser1, void *pvUser2)
832	{
833	DBGDIGGEROS2OPEN pArgs = (DBGDIGGEROS2OPEN )pvUser1;
834
835	RTDBGMOD hDbgMod = NIL_RTDBGMOD;
836	int rc = RTDbgModCreateFromImage(&hDbgMod, pszFilename, pArgs->pszModName, RTLDRARCH_WHATEVER, hDbgCfg);
837	if (RT_SUCCESS(rc))
838	{
839	/** @todo Do some info matching before using it? */
840
841	*(PRTDBGMOD)pvUser2 = hDbgMod;
842	return VINF_CALLBACK_RETURN;
843	}
844	LogRel(("DbgDiggerOs2: dbgdiggerOs2OpenModule: %Rrc - %s\n", rc, pszFilename));
845	return rc;
846	}
847
848
849	static void dbgdiggerOS2ProcessModule(PUVM pUVM, PDBGDIGGEROS2 pThis, DBGDIGGEROS2BUF *pBuf,
850	const char *pszCacheSubDir, RTDBGAS hAs, RTDBGCFG hDbgCfg)
851	{
852	RT_NOREF(pThis);
853
854	/*
855	* Save the MTE.
856	*/
857	static const char * const s_apszMteFmts[4] = { "Reserved1", "NE", "LX", "Reserved2" };
858	LDRMTE const Mte = pBuf->mte;
859	if ((Mte.mte_flags2 & MTEFORMATMASK) != MTEFORMATLX)
860	{
861	LogRel(("DbgDiggerOs2: MTE format not implemented: %s (%d)\n",
862	s_apszMteFmts[(Mte.mte_flags2 & MTEFORMATMASK)], Mte.mte_flags2 & MTEFORMATMASK));
863	return;
864	}
865
866	/*
867	* Don't load program modules into the global address spaces.
868	*/
869	if ((Mte.mte_flags1 & MTE1_CLASS_MASK) == MTE1_CLASS_PROGRAM)
870	{
871	LogRel(("DbgDiggerOs2: Program module, skipping.\n"));
872	return;
873	}
874
875	/*
876	* Try read the swappable MTE. Save it too.
877	*/
878	DBGFADDRESS Addr;
879	int rc = DBGFR3MemRead(pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pUVM, &Addr, Mte.mte_swapmte), &pBuf->smte, sizeof(pBuf->smte));
880	if (RT_FAILURE(rc))
881	{
882	LogRel(("DbgDiggerOs2: Error reading swap mte @ %RX32: %Rrc\n", Mte.mte_swapmte, rc));
883	return;
884	}
885	LDRSMTE const SwapMte = pBuf->smte;
886
887	/* Ignore empty modules or modules with too many segments. */
888	if (SwapMte.smte_objcnt == 0 \|\| SwapMte.smte_objcnt > RT_ELEMENTS(pBuf->aOtes))
889	{
890	LogRel(("DbgDiggerOs2: Skipping: smte_objcnt= %#RX32\n", SwapMte.smte_objcnt));
891	return;
892	}
893
894	/*
895	* Try read the path name, falling back on module name.
896	*/
897	char szModPath[260];
898	rc = VERR_READ_ERROR;
899	if (SwapMte.smte_path != 0 && SwapMte.smte_pathlen > 0)
900	{
901	uint32_t cbToRead = RT_MIN(SwapMte.smte_path, sizeof(szModPath) - 1);
902	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pUVM, &Addr, SwapMte.smte_path), szModPath, cbToRead);
903	szModPath[cbToRead] = '\0';
904	}
905	if (RT_FAILURE(rc))
906	{
907	memcpy(szModPath, Mte.mte_modname, sizeof(Mte.mte_modname));
908	szModPath[sizeof(Mte.mte_modname)] = '\0';
909	RTStrStripR(szModPath);
910	}
911	LogRel(("DbgDiggerOS2: szModPath='%s'\n", szModPath));
912
913	/*
914	* Sanitize the module name.
915	*/
916	char szModName[16];
917	memcpy(szModName, Mte.mte_modname, sizeof(Mte.mte_modname));
918	szModName[sizeof(Mte.mte_modname)] = '\0';
919	RTStrStripR(szModName);
920
921	/*
922	* Read the object table into the buffer.
923	*/
924	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pUVM, &Addr, SwapMte.smte_objtab),
925	&pBuf->aOtes[0], sizeof(pBuf->aOtes[0]) * SwapMte.smte_objcnt);
926	if (RT_FAILURE(rc))
927	{
928	LogRel(("DbgDiggerOs2: Error reading object table @ %#RX32 LB %#zx: %Rrc\n",
929	SwapMte.smte_objtab, sizeof(pBuf->aOtes[0]) * SwapMte.smte_objcnt, rc));
930	return;
931	}
932	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
933	{
934	LogRel(("DbgDiggerOs2: seg%u: %RX32 LB %#x\n", i, pBuf->aOtes[i].ote_base, pBuf->aOtes[i].ote_size));
935	/** @todo validate it. */
936	}
937
938	/*
939	* If it is the kernel, take down the general address range so we can easily search
940	* it all in one go when looking for panic messages and such.
941	*/
942	if (Mte.mte_flags1 & MTE1_DOSMOD)
943	{
944	uint32_t uMax = 0;
945	uint32_t uMin = UINT32_MAX;
946	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
947	if (pBuf->aOtes[i].ote_base > _512M)
948	{
949	if (pBuf->aOtes[i].ote_base < uMin)
950	uMin = pBuf->aOtes[i].ote_base;
951	uint32_t uTmp = pBuf->aOtes[i].ote_base + pBuf->aOtes[i].ote_size;
952	if (uTmp > uMax)
953	uMax = uTmp;
954	}
955	if (uMax != 0)
956	{
957	pThis->uKernelAddr = uMin;
958	pThis->cbKernel = uMax - uMin;
959	LogRel(("DbgDiggerOs2: High kernel range: %#RX32 LB %#RX32 (%#RX32)\n", uMin, pThis->cbKernel, uMax));
960	}
961	}
962
963	/*
964	* No need to continue without an address space (shouldn't happen).
965	*/
966	if (hAs == NIL_RTDBGAS)
967	return;
968
969	/*
970	* Try find a debug file for this module.
971	*/
972	RTDBGMOD hDbgMod = NIL_RTDBGMOD;
973	if (hDbgCfg != NIL_RTDBGCFG)
974	{
975	DBGDIGGEROS2OPEN Args = { szModPath, szModName, &Mte, &SwapMte };
976	RTDbgCfgOpenEx(hDbgCfg, szModPath, pszCacheSubDir, NULL,
977	RT_OPSYS_OS2 \| RTDBGCFG_O_CASE_INSENSITIVE \| RTDBGCFG_O_EXECUTABLE_IMAGE
978	\| RTDBGCFG_O_RECURSIVE \| RTDBGCFG_O_NO_SYSTEM_PATHS,
979	dbgdiggerOs2OpenModule, &Args, &hDbgMod);
980	}
981
982	/*
983	* Fallback is a simple module into which we insert sections.
984	*/
985	uint32_t cSegments = SwapMte.smte_objcnt;
986	if (hDbgMod == NIL_RTDBGMOD)
987	{
988	rc = RTDbgModCreate(&hDbgMod, szModName, 0 /cbSeg/, 0 /fFlags/);
989	if (RT_SUCCESS(rc))
990	{
991	uint32_t uRva = 0;
992	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
993	{
994	char szSegNm[16];
995	RTStrPrintf(szSegNm, sizeof(szSegNm), "seg%u", i);
996	rc = RTDbgModSegmentAdd(hDbgMod, uRva, pBuf->aOtes[i].ote_size, szSegNm, 0 /fFlags/, NULL);
997	if (RT_FAILURE(rc))
998	{
999	LogRel(("DbgDiggerOs2: RTDbgModSegmentAdd failed (i=%u, ote_size=%#x): %Rrc\n",
1000	i, pBuf->aOtes[i].ote_size, rc));
1001	cSegments = i;
1002	break;
1003	}
1004	uRva += RT_ALIGN_32(pBuf->aOtes[i].ote_size, _4K);
1005	}
1006	}
1007	else
1008	{
1009	LogRel(("DbgDiggerOs2: RTDbgModCreate failed: %Rrc\n", rc));
1010	return;
1011	}
1012	}
1013
1014	/*
1015	* Tag the module and link its segments.
1016	*/
1017	rc = RTDbgModSetTag(hDbgMod, DIG_OS2_MOD_TAG);
1018	if (RT_SUCCESS(rc))
1019	{
1020	for (uint32_t i = 0; i < SwapMte.smte_objcnt; i++)
1021	if (pBuf->aOtes[i].ote_base != 0)
1022	{
1023	rc = RTDbgAsModuleLinkSeg(hAs, hDbgMod, i, pBuf->aOtes[i].ote_base, RTDBGASLINK_FLAGS_REPLACE /fFlags/);
1024	if (RT_FAILURE(rc))
1025	LogRel(("DbgDiggerOs2: RTDbgAsModuleLinkSeg failed (i=%u, ote_base=%#x): %Rrc\n",
1026	i, pBuf->aOtes[i].ote_base, rc));
1027	}
1028	}
1029	else
1030	LogRel(("DbgDiggerOs2: RTDbgModSetTag failed: %Rrc\n", rc));
1031	RTDbgModRelease(hDbgMod);
1032	}
1033
1034
1035	/**
1036	* @copydoc DBGFOSREG::pfnInit
1037	*/
1038	static DECLCALLBACK(int) dbgDiggerOS2Init(PUVM pUVM, void *pvData)
1039	{
1040	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1041	Assert(!pThis->fValid);
1042
1043	DBGDIGGEROS2BUF uBuf;
1044	DBGFADDRESS Addr;
1045	int rc;
1046
1047	/*
1048	* Determine the OS/2 version.
1049	*/
1050	/* Version info is at GIS:15h (major/minor/revision). */
1051	rc = DBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, pThis->selGis, 0x15);
1052	if (RT_FAILURE(rc))
1053	return VERR_NOT_SUPPORTED;
1054	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, uBuf.au32, sizeof(uint32_t));
1055	if (RT_FAILURE(rc))
1056	return VERR_NOT_SUPPORTED;
1057
1058	pThis->OS2MajorVersion = uBuf.au8[0];
1059	pThis->OS2MinorVersion = uBuf.au8[1];
1060
1061	pThis->fValid = true;
1062
1063	/*
1064	* Try use SAS to find the module list.
1065	*/
1066	rc = DBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, 0x00);
1067	if (RT_SUCCESS(rc))
1068	{
1069	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.sas, sizeof(uBuf.sas));
1070	if (RT_SUCCESS(rc))
1071	{
1072	rc = DBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, uBuf.sas.SAS_vm_data);
1073	if (RT_SUCCESS(rc))
1074	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.sasvm, sizeof(uBuf.sasvm));
1075	if (RT_SUCCESS(rc))
1076	{
1077	/*
1078	* Work the module list.
1079	*/
1080	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pUVM, &Addr, uBuf.sasvm.SAS_vm_all_mte),
1081	&uBuf.au32[0], sizeof(uBuf.au32[0]));
1082	if (RT_SUCCESS(rc))
1083	{
1084	uint32_t uOs2Krnl = UINT32_MAX;
1085	RTDBGCFG hDbgCfg = DBGFR3AsGetConfig(pUVM); /* (don't release this) */
1086	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, DBGF_AS_GLOBAL);
1087
1088	char szCacheSubDir[24];
1089	RTStrPrintf(szCacheSubDir, sizeof(szCacheSubDir), "os2-%u.%u", pThis->OS2MajorVersion, pThis->OS2MinorVersion);
1090
1091	DBGFR3AddrFromFlat(pUVM, &Addr, uBuf.au32[0]);
1092	while (Addr.FlatPtr != 0 && Addr.FlatPtr != UINT32_MAX)
1093	{
1094	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, &uBuf.mte, sizeof(uBuf.mte));
1095	if (RT_FAILURE(rc))
1096	break;
1097	LogRel(("DbgDiggerOs2: Module @ %#010RX32: %.8s %#x %#x\n", (uint32_t)Addr.FlatPtr,
1098	uBuf.mte.mte_modname, uBuf.mte.mte_flags1, uBuf.mte.mte_flags2));
1099	if (uBuf.mte.mte_flags1 & MTE1_DOSMOD)
1100	uOs2Krnl = (uint32_t)Addr.FlatPtr;
1101
1102	DBGFR3AddrFromFlat(pUVM, &Addr, uBuf.mte.mte_link);
1103	dbgdiggerOS2ProcessModule(pUVM, pThis, &uBuf, szCacheSubDir, hAs, hDbgCfg);
1104	}
1105
1106	/* Load the kernel again. To make sure we didn't drop any segments due
1107	to overlap/conflicts/whatever. */
1108	if (uOs2Krnl != UINT32_MAX)
1109	{
1110	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, DBGFR3AddrFromFlat(pUVM, &Addr, uOs2Krnl),
1111	&uBuf.mte, sizeof(uBuf.mte));
1112	if (RT_SUCCESS(rc))
1113	{
1114	LogRel(("DbgDiggerOs2: Module @ %#010RX32: %.8s %#x %#x [again]\n", (uint32_t)Addr.FlatPtr,
1115	uBuf.mte.mte_modname, uBuf.mte.mte_flags1, uBuf.mte.mte_flags2));
1116	dbgdiggerOS2ProcessModule(pUVM, pThis, &uBuf, szCacheSubDir, hAs, hDbgCfg);
1117	}
1118	}
1119
1120	RTDbgAsRelease(hAs);
1121	}
1122	}
1123	}
1124	}
1125
1126	/*
1127	* Register info handlers.
1128	*/
1129	DBGFR3InfoRegisterExternal(pUVM, "sas", "Dumps the OS/2 system anchor block (SAS).", dbgDiggerOS2InfoSas, pThis);
1130	DBGFR3InfoRegisterExternal(pUVM, "gis", "Dumps the OS/2 global info segment (GIS).", dbgDiggerOS2InfoGis, pThis);
1131	DBGFR3InfoRegisterExternal(pUVM, "lis", "Dumps the OS/2 local info segment (current process).", dbgDiggerOS2InfoLis, pThis);
1132	DBGFR3InfoRegisterExternal(pUVM, "panic", "Dumps the OS/2 system panic message.", dbgDiggerOS2InfoPanic, pThis);
1133
1134	return VINF_SUCCESS;
1135	}
1136
1137
1138	/**
1139	* @copydoc DBGFOSREG::pfnProbe
1140	*/
1141	static DECLCALLBACK(bool) dbgDiggerOS2Probe(PUVM pUVM, void *pvData)
1142	{
1143	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1144	DBGFADDRESS Addr;
1145	int rc;
1146	uint16_t offInfo;
1147	union
1148	{
1149	uint8_t au8[8192];
1150	uint16_t au16[8192/2];
1151	uint32_t au32[8192/4];
1152	RTUTF16 wsz[8192/2];
1153	} u;
1154
1155	/*
1156	* If the DWORD at 70:0 contains 'SAS ' it's quite unlikely that this wouldn't be OS/2.
1157	* Note: The SAS layout is similar between 16-bit and 32-bit OS/2, but not identical.
1158	* 32-bit OS/2 will have the flat kernel data selector at SAS:06. The selector is 168h
1159	* or similar. For 16-bit OS/2 the field contains a table offset into the SAS which will
1160	* be much smaller. Fun fact: The global infoseg selector in the SAS is bimodal in 16-bit
1161	* OS/2 and will work in real mode as well.
1162	*/
1163	do {
1164	rc = DBGFR3AddrFromSelOff(pUVM, 0 /idCpu/, &Addr, 0x70, 0x00);
1165	if (RT_FAILURE(rc))
1166	break;
1167	rc = DBGFR3MemRead(pUVM, 0 /idCpu/, &Addr, u.au32, 256);
1168	if (RT_FAILURE(rc))
1169	break;
1170	if (u.au32[0] != DIG_OS2_SAS_SIG)
1171	break;
1172
1173	/* This sure looks like OS/2, but a bit of paranoia won't hurt. */
1174	if (u.au16[2] >= u.au16[4])
1175	break;
1176
1177	/* If 4th word is bigger than 5th, it's the flat kernel mode selector. */
1178	if (u.au16[3] > u.au16[4])
1179	pThis->f32Bit = true;
1180
1181	/* Offset into info table is either at SAS:14h or SAS:16h. */
1182	if (pThis->f32Bit)
1183	offInfo = u.au16[0x14/2];
1184	else
1185	offInfo = u.au16[0x16/2];
1186
1187	/* The global infoseg selector is the first entry in the info table. */
1188	SASINFO const pInfo = (SASINFO const )&u.au8[offInfo];
1189	pThis->selGis = pInfo->SAS_info_global;
1190	pThis->Lis.sel = RT_HI_U16(pInfo->SAS_info_local);
1191	pThis->Lis.off = RT_LO_U16(pInfo->SAS_info_local);
1192	return true;
1193	} while (0);
1194
1195	return false;
1196	}
1197
1198
1199	/**
1200	* @copydoc DBGFOSREG::pfnDestruct
1201	*/
1202	static DECLCALLBACK(void) dbgDiggerOS2Destruct(PUVM pUVM, void *pvData)
1203	{
1204	RT_NOREF2(pUVM, pvData);
1205	}
1206
1207
1208	/**
1209	* @copydoc DBGFOSREG::pfnConstruct
1210	*/
1211	static DECLCALLBACK(int) dbgDiggerOS2Construct(PUVM pUVM, void *pvData)
1212	{
1213	RT_NOREF1(pUVM);
1214	PDBGDIGGEROS2 pThis = (PDBGDIGGEROS2)pvData;
1215	pThis->fValid = false;
1216	pThis->f32Bit = false;
1217	pThis->enmVer = DBGDIGGEROS2VER_UNKNOWN;
1218	pThis->pUVM = pUVM;
1219	return VINF_SUCCESS;
1220	}
1221
1222
1223	const DBGFOSREG g_DBGDiggerOS2 =
1224	{
1225	/* .u32Magic = */ DBGFOSREG_MAGIC,
1226	/* .fFlags = */ 0,
1227	/* .cbData = */ sizeof(DBGDIGGEROS2),
1228	/* .szName = */ "OS/2",
1229	/* .pfnConstruct = */ dbgDiggerOS2Construct,
1230	/* .pfnDestruct = */ dbgDiggerOS2Destruct,
1231	/* .pfnProbe = */ dbgDiggerOS2Probe,
1232	/* .pfnInit = */ dbgDiggerOS2Init,
1233	/* .pfnRefresh = */ dbgDiggerOS2Refresh,
1234	/* .pfnTerm = */ dbgDiggerOS2Term,
1235	/* .pfnQueryVersion = */ dbgDiggerOS2QueryVersion,
1236	/* .pfnQueryInterface = */ dbgDiggerOS2QueryInterface,
1237	/* .pfnStackUnwindAssist = */ dbgDiggerOS2StackUnwindAssist,
1238	/* .u32EndMagic = */ DBGFOSREG_MAGIC
1239	};

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Debugger/DBGPlugInOS2.cpp@ 82366

Download in other formats: