1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
|
/* lkcd_v2_v3.c - core analysis suite
*
* Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 01/18/00, 2.0 Initial gdb merger, support for Alpha
* 02/01/00, 2.1 Bug fixes, new commands, options, support for v2 SGI dumps
* 02/29/00, 2.2 Bug fixes, new commands, options
* 04/11/00, 2.3 Bug fixes, new command, options, initial PowerPC framework
* 04/12/00 --- Transition to BitKeeper version control
*
* BitKeeper ID: @(#)sgi_lkcd_v2.c 1.4
*
* 09/28/00 --- Transition to CVS version control
*
* CVS: $Revision: 1.3 $ $Date: 2002/01/30 19:28:36 $
*/
#define LKCD_COMMON
#include "defs.h"
#define CONFIG_VMDUMP
#include "lkcd_vmdump_v2_v3.h"
static dump_header_t dump_header_v2_v3 = { 0 };
static dump_page_t dump_page = { 0 };
static dump_header_asm_t dump_header_asm = { 0 };
static void mclx_cache_page_headers_v3(void);
/*
* Verify and initialize the LKCD environment, storing the common data
* in the global lkcd_environment structure.
*/
int
lkcd_dump_init_v2_v3(FILE *fp, int fd)
{
int i;
int eof;
uint32_t pgcnt;
dump_header_t *dh;
dump_header_asm_t *dha;
dump_page_t *dp;
lkcd->fd = fd;
lkcd->fp = fp;
lseek(lkcd->fd, 0, SEEK_SET);
dh = &dump_header_v2_v3;
dha = &dump_header_asm;
dp = &dump_page;
if (read(lkcd->fd, dh, sizeof(dump_header_t)) !=
sizeof(dump_header_t))
return FALSE;
if (dh->dh_version & LKCD_DUMP_MCLX_V1)
lseek(lkcd->fd, MCLX_V1_PAGE_HEADER_CACHE, SEEK_CUR);
if (read(lkcd->fd, dha, sizeof(dump_header_asm_t)) !=
sizeof(dump_header_asm_t))
return FALSE;
lkcd->dump_page = dp;
lkcd->dump_header = dh;
lkcd->dump_header_asm = dha;
if (lkcd->debug)
dump_lkcd_environment(LKCD_DUMP_HEADER_ONLY);
/*
* Allocate and clear the benchmark offsets, one per megabyte.
*/
lkcd->page_size = dh->dh_page_size;
lkcd->page_shift = ffs(lkcd->page_size) - 1;
lkcd->bits = sizeof(long) * 8;
lkcd->benchmark_pages = (dh->dh_num_pages/LKCD_PAGES_PER_MEGABYTE())+1;
lkcd->total_pages = dh->dh_num_pages;
if ((lkcd->mb_hdr_offsets = (off_t *)malloc
(lkcd->benchmark_pages * sizeof(off_t))) == NULL)
return FALSE;
lkcd->get_dp_flags = get_dp_flags_v2_v3;
lkcd->get_dp_address = get_dp_address_v2_v3;
lkcd->compression = LKCD_DUMP_COMPRESS_RLE;
lkcd->page_header_size = sizeof(dump_page_t);
BZERO(lkcd->mb_hdr_offsets, lkcd->benchmark_pages * sizeof(off_t));
lseek(lkcd->fd, LKCD_OFFSET_TO_FIRST_PAGE, SEEK_SET);
for (pgcnt = 0, eof = FALSE; !eof; pgcnt++) {
switch (lkcd_load_dump_page_header(dp, pgcnt))
{
case LKCD_DUMPFILE_OK:
case LKCD_DUMPFILE_END:
break;
case LKCD_DUMPFILE_EOF:
lkcd_print("reached EOF\n");
eof = TRUE;
continue;
}
if (dp->dp_flags &
~(DUMP_COMPRESSED|DUMP_RAW|DUMP_END|LKCD_DUMP_MCLX_V0)) {
lkcd_print("unknown page flag in dump: %lx\n",
dp->dp_flags);
}
if (dp->dp_flags & (LKCD_DUMP_MCLX_V0|LKCD_DUMP_MCLX_V1))
lkcd->flags |= LKCD_MCLX;
if (dp->dp_size > 4096) {
lkcd_print("dp_size > 4096: %d\n", dp->dp_size);
dump_lkcd_environment(LKCD_DUMP_PAGE_ONLY);
}
if (dp->dp_flags & DUMP_END) {
lkcd_print("found DUMP_END\n");
break;
}
lseek(lkcd->fd, dp->dp_size, SEEK_CUR);
if (!LKCD_DEBUG(2))
break;
}
/*
* Allocate space for LKCD_CACHED_PAGES data pages plus one to
* contain a copy of the compressed data of the current page.
*/
if ((lkcd->page_cache_buf = (char *)malloc
(dh->dh_page_size * (LKCD_CACHED_PAGES))) == NULL)
return FALSE;
/*
* Clear the page data areas.
*/
lkcd_free_memory();
for (i = 0; i < LKCD_CACHED_PAGES; i++) {
lkcd->page_cache_hdr[i].pg_bufptr =
&lkcd->page_cache_buf[i * dh->dh_page_size];
}
if ((lkcd->compressed_page = (char *)malloc(dh->dh_page_size)) == NULL)
return FALSE;
if ((lkcd->page_hash = (struct page_hash_entry *)calloc
(LKCD_PAGE_HASH, sizeof(struct page_hash_entry))) == NULL)
return FALSE;
lkcd->total_pages = eof || (pgcnt > dh->dh_num_pages) ?
pgcnt : dh->dh_num_pages;
lkcd->panic_task = (ulong)dh->dh_current_task;
lkcd->panic_string = (char *)&dh->dh_panic_string[0];
lkcd->get_dp_size = get_dp_size_v2_v3;
if (dh->dh_version & LKCD_DUMP_MCLX_V1)
mclx_cache_page_headers_v3();
if (!fp)
lkcd->flags |= LKCD_REMOTE;
lkcd->flags |= LKCD_VALID;
return TRUE;
}
/*
* Return the current page's dp_size.
*/
uint32_t
get_dp_size_v2_v3(void)
{
dump_page_t *dp;
dp = (dump_page_t *)lkcd->dump_page;
return(dp->dp_size);
}
/*
* Return the current page's dp_flags.
*/
uint32_t
get_dp_flags_v2_v3(void)
{
dump_page_t *dp;
dp = (dump_page_t *)lkcd->dump_page;
return(dp->dp_flags);
}
/*
* Return the current page's dp_address.
*/
uint64_t
get_dp_address_v2_v3(void)
{
dump_page_t *dp;
dp = (dump_page_t *)lkcd->dump_page;
return(dp->dp_address);
}
void
dump_dump_page_v2_v3(char *s, void *dpp)
{
dump_page_t *dp;
uint32_t flags;
int others;
console(s);
dp = (dump_page_t *)dpp;
others = 0;
console(BITS32() ? "dp_address: %llx " : "dp_address: %lx ",
dp->dp_address);
console("dp_size: %ld ", dp->dp_size);
console("dp_flags: %lx (", flags = dp->dp_flags);
if (flags & DUMP_COMPRESSED)
console("DUMP_COMPRESSED", others++);
if (flags & DUMP_RAW)
console("%sDUMP_RAW", others++ ? "|" : "");
if (flags & DUMP_END)
console("%sDUMP_END", others++ ? "|" : "");
if (flags & LKCD_DUMP_MCLX_V0)
console("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : "");
console(")\n");
}
/*
* help -S output, or as specified by arg.
*/
void
dump_lkcd_environment_v2_v3(ulong arg)
{
int others;
dump_header_t *dh;
dump_header_asm_t *dha;
dump_page_t *dp;
dh = (dump_header_t *)lkcd->dump_header;
dha = (dump_header_asm_t *)lkcd->dump_header_asm;
dp = (dump_page_t *)lkcd->dump_page;
if (arg == LKCD_DUMP_HEADER_ONLY)
goto dump_header_only;
if (arg == LKCD_DUMP_PAGE_ONLY)
goto dump_page_only;
dump_header_only:
lkcd_print(" dump_header:\n");
lkcd_print(" dh_magic_number: ");
lkcd_print(BITS32() ? "%llx " : "%lx ", dh->dh_magic_number);
if (dh->dh_magic_number == DUMP_MAGIC_NUMBER)
lkcd_print("(DUMP_MAGIC_NUMBER)\n");
else
lkcd_print("(?)\n");
others = 0;
lkcd_print(" dh_version: ");
lkcd_print(BITS32() ? "%lx (" : "%x (", dh->dh_version);
switch (dh->dh_version & LKCD_DUMP_VERSION_NUMBER_MASK)
{
case LKCD_DUMP_V1:
lkcd_print("%sLKCD_DUMP_V1", others++ ? "|" : "");
break;
case LKCD_DUMP_V2:
lkcd_print("%sLKCD_DUMP_V2", others++ ? "|" : "");
break;
case LKCD_DUMP_V3:
lkcd_print("%sLKCD_DUMP_V3", others++ ? "|" : "");
break;
}
if (dh->dh_version & LKCD_DUMP_MCLX_V0)
lkcd_print("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : "");
if (dh->dh_version & LKCD_DUMP_MCLX_V1)
lkcd_print("%sLKCD_DUMP_MCLX_V1", others++ ? "|" : "");
lkcd_print(")\n");
lkcd_print(" dh_header_size: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_header_size);
lkcd_print(" dh_dump_level: ");
lkcd_print(BITS32() ? "%lx (" : "%x (", dh->dh_dump_level);
others = 0;
if (dh->dh_dump_level & DUMP_HEADER)
lkcd_print("%sDUMP_HEADER", others++ ? "|" : "");
if (dh->dh_dump_level & DUMP_KERN)
lkcd_print("%sDUMP_KERN", others++ ? "|" : "");
if (dh->dh_dump_level & DUMP_USED)
lkcd_print("%sDUMP_USED", others++ ? "|" : "");
if (dh->dh_dump_level & DUMP_ALL)
lkcd_print("%sDUMP_ALL", others++ ? "|" : "");
lkcd_print(")\n");
lkcd_print(" dh_page_size: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_page_size);
lkcd_print(" dh_memory_size: ");
lkcd_print(BITS32() ? "%lld\n" : "%ld\n", dh->dh_memory_size);
lkcd_print(" dh_memory_start: ");
lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dh->dh_memory_start);
lkcd_print(" dh_memory_end: ");
lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dh->dh_memory_end);
lkcd_print(" dh_num_pages: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dh->dh_num_pages);
lkcd_print(" dh_panic_string: %s%s", dh->dh_panic_string,
dh && dh->dh_panic_string &&
strstr(dh->dh_panic_string, "\n") ? "" : "\n");
lkcd_print(" dh_time: %s\n",
strip_linefeeds(ctime(&(dh->dh_time.tv_sec))));
lkcd_print(" dh_utsname:\n");
lkcd_print(" sysname: %s\n", dh->dh_utsname.sysname);
lkcd_print(" nodename: %s\n", dh->dh_utsname.nodename);
lkcd_print(" release: %s\n", dh->dh_utsname.release);
lkcd_print(" version: %s\n", dh->dh_utsname.version);
lkcd_print(" machine: %s\n", dh->dh_utsname.machine);
lkcd_print(" domainname: %s\n", dh->dh_utsname.domainname);
lkcd_print(" dh_current_task: %lx\n", dh->dh_current_task);
lkcd_print("dha_magic_number: ");
lkcd_print(BITS32() ? "%llx " : "%lx ", dha->dha_magic_number);
if (dha->dha_magic_number == DUMP_ASM_MAGIC_NUMBER)
lkcd_print("(DUMP_ASM_MAGIC_NUMBER)\n");
else
lkcd_print("(?)\n");
lkcd_print(" dha_version: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dha->dha_version);
lkcd_print(" dha_header_size: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dha->dha_header_size);
#ifdef X86
lkcd_print(" dha_esp: %lx\n", dha->dha_esp);
lkcd_print(" dha_eip: %lx\n", dha->dha_eip);
#endif
#if defined PPC || ALPHA || IA64
/* TBD */
#endif
lkcd_print(" dha_regs:\n");
#ifdef PPC
lkcd_print(" (PowerPC register display TBD)\n");
#endif
#ifdef IA64
lkcd_print(" (IA64 register display TBD)\n");
#endif
#ifdef X86
lkcd_print(" ebx: %lx\n", dha->dha_regs.ebx);
lkcd_print(" ecx: %lx\n", dha->dha_regs.ecx);
lkcd_print(" edx: %lx\n", dha->dha_regs.edx);
lkcd_print(" esi: %lx\n", dha->dha_regs.esi);
lkcd_print(" edi: %lx\n", dha->dha_regs.edi);
lkcd_print(" eax: %lx\n", dha->dha_regs.eax);
lkcd_print(" xds: %x\n", dha->dha_regs.xds);
lkcd_print(" xes: %x\n", dha->dha_regs.xes);
lkcd_print(" orig_eax: %lx\n", dha->dha_regs.orig_eax);
lkcd_print(" eip: %lx\n", dha->dha_regs.eip);
lkcd_print(" xcs: %x\n", dha->dha_regs.xcs);
lkcd_print(" eflags: %lx\n", dha->dha_regs.eflags);
lkcd_print(" esp: %lx\n", dha->dha_regs.esp);
lkcd_print(" xss: %x\n", dha->dha_regs.xss);
#endif
#ifdef ALPHA
lkcd_print(" r0: %lx\n", dha->dha_regs.r0);
lkcd_print(" r1: %lx\n", dha->dha_regs.r1);
lkcd_print(" r2: %lx\n", dha->dha_regs.r2);
lkcd_print(" r3: %lx\n", dha->dha_regs.r3);
lkcd_print(" r4: %lx\n", dha->dha_regs.r4);
lkcd_print(" r5: %lx\n", dha->dha_regs.r5);
lkcd_print(" r6: %lx\n", dha->dha_regs.r6);
lkcd_print(" r7: %lx\n", dha->dha_regs.r7);
lkcd_print(" r8: %lx\n", dha->dha_regs.r8);
lkcd_print(" r19: %lx\n", dha->dha_regs.r19);
lkcd_print(" r20: %lx\n", dha->dha_regs.r20);
lkcd_print(" r21: %lx\n", dha->dha_regs.r21);
lkcd_print(" r22: %lx\n", dha->dha_regs.r22);
lkcd_print(" r23: %lx\n", dha->dha_regs.r23);
lkcd_print(" r24: %lx\n", dha->dha_regs.r24);
lkcd_print(" r25: %lx\n", dha->dha_regs.r25);
lkcd_print(" r26: %lx\n", dha->dha_regs.r26);
lkcd_print(" r27: %lx\n", dha->dha_regs.r27);
lkcd_print(" r28: %lx\n", dha->dha_regs.r28);
lkcd_print(" hae: %lx\n", dha->dha_regs.hae);
lkcd_print(" trap_a0: %lx\n", dha->dha_regs.trap_a0);
lkcd_print(" trap_a1: %lx\n", dha->dha_regs.trap_a1);
lkcd_print(" trap_a2: %lx\n", dha->dha_regs.trap_a2);
lkcd_print(" ps: %lx\n", dha->dha_regs.ps);
lkcd_print(" pc: %lx\n", dha->dha_regs.pc);
lkcd_print(" gp: %lx\n", dha->dha_regs.gp);
lkcd_print(" r16: %lx\n", dha->dha_regs.r16);
lkcd_print(" r17: %lx\n", dha->dha_regs.r17);
lkcd_print(" r18: %lx\n", dha->dha_regs.r18);
#endif
if (arg == LKCD_DUMP_HEADER_ONLY)
return;
dump_page_only:
lkcd_print(" dump_page:\n");
lkcd_print(" dp_address: ");
lkcd_print(BITS32() ? "%llx\n" : "%lx\n", dp->dp_address);
lkcd_print(" dp_size: ");
lkcd_print(BITS32() ? "%ld\n" : "%d\n", dp->dp_size);
lkcd_print(" dp_flags: ");
lkcd_print(BITS32() ? "%lx (" : "%x (", dp->dp_flags);
others = 0;
if (dp->dp_flags & DUMP_COMPRESSED)
lkcd_print("DUMP_COMPRESSED", others++);
if (dp->dp_flags & DUMP_RAW)
lkcd_print("%sDUMP_RAW", others++ ? "|" : "");
if (dp->dp_flags & DUMP_END)
lkcd_print("%sDUMP_END", others++ ? "|" : "");
if (dp->dp_flags & LKCD_DUMP_MCLX_V0)
lkcd_print("%sLKCD_DUMP_MCLX_V0", others++ ? "|" : "");
lkcd_print(")\n");
}
/*
* Read the MCLX-enhanced page header cache. Verify the first one, which
* is a pointer to the page header for address 1MB, and take the rest at
* blind faith. Note that the page headers do not include the 64K dump
* header offset, which must be added to the values found.
*/
static void
mclx_cache_page_headers_v3(void)
{
int i;
uint64_t physaddr1, physaddr2, page_headers[MCLX_PAGE_HEADERS];
dump_page_t dump_page, *dp;
ulong granularity;
if (LKCD_DEBUG(2)) /* dump headers have all been read */
return;
if (lkcd->total_pages > MEGABYTES(1))/* greater than 4G not supported */
return;
if (lseek(lkcd->fd, sizeof(dump_header_t), SEEK_SET) == -1)
return;
if (read(lkcd->fd, page_headers, MCLX_V1_PAGE_HEADER_CACHE) !=
MCLX_V1_PAGE_HEADER_CACHE)
return;
dp = &dump_page;
/*
* Determine the granularity between offsets.
*/
if (lseek(lkcd->fd, page_headers[0] + LKCD_OFFSET_TO_FIRST_PAGE,
SEEK_SET) == -1)
return;
if (read(lkcd->fd, dp, lkcd->page_header_size) !=
lkcd->page_header_size)
return;
physaddr1 = (dp->dp_address - lkcd->kvbase) << lkcd->page_shift;
if (lseek(lkcd->fd, page_headers[1] + LKCD_OFFSET_TO_FIRST_PAGE,
SEEK_SET) == -1)
return;
if (read(lkcd->fd, dp, lkcd->page_header_size) !=
lkcd->page_header_size)
return;
physaddr2 = (dp->dp_address - lkcd->kvbase) << lkcd->page_shift;
if ((physaddr1 % MEGABYTES(1)) || (physaddr2 % MEGABYTES(1)) ||
(physaddr2 < physaddr1))
return;
granularity = physaddr2 - physaddr1;
for (i = 0; i < (MCLX_PAGE_HEADERS-1); i++) {
if (!page_headers[i])
break;
lkcd->curhdroffs = page_headers[i] + LKCD_OFFSET_TO_FIRST_PAGE;
set_mb_benchmark((granularity * (i+1))/lkcd->page_size);
}
}
|
