procmap.c revision 1.2
1/* $OpenBSD: procmap.c,v 1.2 2004/02/16 08:57:58 tedu Exp $ */ 2/* $NetBSD: pmap.c,v 1.1 2002/09/01 20:32:44 atatat Exp $ */ 3 4/* 5 * Copyright (c) 2002 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Andrew Brown. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40#include <sys/types.h> 41#include <sys/param.h> 42#include <sys/time.h> 43#include <sys/exec.h> 44#include <sys/proc.h> 45#include <sys/vnode.h> 46#include <sys/mount.h> 47#include <sys/uio.h> 48#include <sys/namei.h> 49#include <sys/sysctl.h> 50 51#include <uvm/uvm.h> 52#include <uvm/uvm_device.h> 53 54#include <ufs/ufs/quota.h> 55#include <ufs/ufs/inode.h> 56#undef doff_t 57#undef IN_ACCESS 58#undef i_size 59#undef i_devvp 60#include <isofs/cd9660/iso.h> 61#include <isofs/cd9660/cd9660_node.h> 62 63#include <kvm.h> 64#include <fcntl.h> 65#include <errno.h> 66#include <err.h> 67#include <stdlib.h> 68#include <stddef.h> 69#include <unistd.h> 70#include <stdio.h> 71#include <limits.h> 72#include <string.h> 73 74/* 75 * stolen (and munged) from #include <uvm/uvm_object.h> 76 */ 77#define UVM_OBJ_IS_VNODE(uobj) ((uobj)->pgops == uvm_vnodeops) 78#define UVM_OBJ_IS_AOBJ(uobj) ((uobj)->pgops == aobj_pager) 79#define UVM_OBJ_IS_DEVICE(uobj) ((uobj)->pgops == uvm_deviceops) 80#if 0 81#define UVM_OBJ_IS_UBCPAGER(uobj) ((uobj)->pgops == ubc_pager) 82#endif 83 84#define PRINT_VMSPACE 0x00000001 85#define PRINT_VM_MAP 0x00000002 86#define PRINT_VM_MAP_HEADER 0x00000004 87#define PRINT_VM_MAP_ENTRY 0x00000008 88#define DUMP_NAMEI_CACHE 0x00000010 89 90struct cache_entry { 91 LIST_ENTRY(cache_entry) ce_next; 92 struct vnode *ce_vp, *ce_pvp; 93 u_long ce_cid, ce_pcid; 94 int ce_nlen; 95 char ce_name[256]; 96}; 97 98LIST_HEAD(cache_head, cache_entry) lcache; 99LIST_HEAD(nchashhead, namecache) *nchashtbl = NULL; 100void *uvm_vnodeops, *uvm_deviceops, *aobj_pager; 101#if 0 102void *ubc_pager; 103#endif 104void *kernel_floor; 105u_long nchash_addr, nchashtbl_addr, kernel_map_addr; 106int debug, verbose; 107int print_all, print_map, print_maps, print_solaris, print_ddb; 108int rwx = VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE, heapfound; 109rlim_t maxssiz; 110 111struct kbit { 112 /* 113 * size of data chunk 114 */ 115 size_t k_size; 116 117 /* 118 * something for printf() and something for kvm_read() 119 */ 120 union { 121 void *k_addr_p; 122 u_long k_addr_ul; 123 } k_addr; 124 125 /* 126 * where we actually put the "stuff" 127 */ 128 union { 129 char data[1]; 130 struct vmspace vmspace; 131 struct vm_map vm_map; 132 struct vm_map_entry vm_map_entry; 133 struct vnode vnode; 134 struct uvm_object uvm_object; 135 struct mount mount; 136 struct namecache namecache; 137 struct inode inode; 138 struct iso_node iso_node; 139 struct uvm_device uvm_device; 140 } k_data; 141}; 142 143/* the size of the object in the kernel */ 144#define S(x) ((x)->k_size) 145/* the address of the object in kernel, two forms */ 146#define A(x) ((x)->k_addr.k_addr_ul) 147#define P(x) ((x)->k_addr.k_addr_p) 148/* the data from the kernel */ 149#define D(x,d) (&((x)->k_data.d)) 150 151/* suck the data from the kernel */ 152#define _KDEREF(kd, addr, dst, sz) do { \ 153 ssize_t len; \ 154 len = kvm_read((kd), (addr), (dst), (sz)); \ 155 if (len != (sz)) \ 156 errx(1, "%s == %ld vs. %lu @ %lx", \ 157 kvm_geterr(kd), (long)len, (unsigned long)(sz), (addr)); \ 158} while (0/*CONSTCOND*/) 159 160/* suck the data using the structure */ 161#define KDEREF(kd, item) _KDEREF((kd), A(item), D(item, data), S(item)) 162 163struct nlist nl[] = { 164 { "_maxsmap" }, 165#define NL_MAXSSIZ 0 166 { "_uvm_vnodeops" }, 167#define NL_UVM_VNODEOPS 1 168 { "_uvm_deviceops" }, 169#define NL_UVM_DEVICEOPS 2 170 { "_aobj_pager" }, 171#define NL_AOBJ_PAGER 3 172 { "_kernel_map" }, 173#define NL_KERNEL_MAP 4 174 { "_nchashtbl" }, 175#define NL_NCHASHTBL 5 176 { "_nchash" }, 177#define NL_NCHASH 6 178 { "_kernel_text" }, 179#define NL_KENTER 7 180#if 0 181 { "_ubc_pager" }, 182#define NL_UBC_PAGER 8 183#endif 184 { NULL } 185}; 186 187void load_symbols(kvm_t *); 188void process_map(kvm_t *, pid_t, struct kinfo_proc *); 189size_t dump_vm_map_entry(kvm_t *, struct kbit *, struct kbit *, int); 190char *findname(kvm_t *, struct kbit *, struct kbit *, struct kbit *, 191 struct kbit *, struct kbit *); 192int search_cache(kvm_t *, struct kbit *, char **, char *, size_t); 193void load_name_cache(kvm_t *); 194void cache_enter(struct namecache *); 195 196int 197main(int argc, char *argv[]) 198{ 199 kvm_t *kd; 200 pid_t pid; 201 int many, ch, rc; 202 char errbuf[_POSIX2_LINE_MAX + 1]; 203 /* u_long addr, next; */ 204 struct kinfo_proc *kproc; 205 /* struct proc proc; */ 206 char *kmem, *kernel; 207 extern char *__progname; 208 209 pid = -1; 210 verbose = debug = 0; 211 print_all = print_map = print_maps = print_solaris = print_ddb = 0; 212 kmem = kernel = NULL; 213 214 while ((ch = getopt(argc, argv, "aD:dlmM:N:p:Prsvx")) != -1) { 215 switch (ch) { 216 case 'a': 217 print_all = 1; 218 break; 219 case 'd': 220 print_ddb = 1; 221 break; 222 case 'D': 223 debug = atoi(optarg); 224 break; 225 case 'l': 226 print_maps = 1; 227 break; 228 case 'm': 229 print_map = 1; 230 break; 231 case 'M': 232 kmem = optarg; 233 break; 234 case 'N': 235 kernel = optarg; 236 break; 237 case 'p': 238 pid = atoi(optarg); 239 break; 240 case 'P': 241 pid = getpid(); 242 break; 243 case 's': 244 print_solaris = 1; 245 break; 246 case 'v': 247 verbose = 1; 248 break; 249 case 'r': 250 case 'x': 251 errx(1, "-%c option not implemented, sorry", optopt); 252 /*NOTREACHED*/ 253 case '?': 254 default: 255 fprintf(stderr, "usage: %s [-adlmPsv] [-D number] " 256 "[-M core] [-N system] [-p pid] [pid ...]\n", 257 __progname); 258 exit(1); 259 } 260 } 261 argc -= optind; 262 argv += optind; 263 264 /* more than one "process" to dump? */ 265 many = (argc > 1 - (pid == -1 ? 0 : 1)) ? 1 : 0; 266 267 /* apply default */ 268 if (print_all + print_map + print_maps + print_solaris + 269 print_ddb == 0) 270 print_solaris = 1; 271 272 /* start by opening libkvm */ 273 kd = kvm_openfiles(kernel, kmem, NULL, O_RDONLY, errbuf); 274 errbuf[_POSIX2_LINE_MAX] = '\0'; 275 if (kd == NULL) 276 errx(1, "%s", errbuf); 277 278 /* get "bootstrap" addresses from kernel */ 279 load_symbols(kd); 280 281 do { 282 if (pid == -1) { 283 if (argc == 0) 284 pid = getppid(); 285 else { 286 pid = atoi(argv[0]); 287 argv++; 288 argc--; 289 } 290 } 291 292 /* find the process id */ 293 if (pid == 0) 294 kproc = NULL; 295 else { 296 kproc = kvm_getprocs(kd, KERN_PROC_PID, pid, &rc); 297 if (kproc == NULL || rc == 0) { 298 errno = ESRCH; 299 warn("%d", pid); 300 pid = -1; 301 continue; 302 } 303 } 304 305 /* dump it */ 306 if (many) { 307 if (kproc) 308 printf("process %d:\n", pid); 309 else 310 printf("kernel:\n"); 311 } 312 313 process_map(kd, pid, kproc); 314 pid = -1; 315 } while (argc > 0); 316 317 /* done. go away. */ 318 rc = kvm_close(kd); 319 if (rc == -1) 320 err(1, "kvm_close"); 321 322 return (0); 323} 324 325void 326process_map(kvm_t *kd, pid_t pid, struct kinfo_proc *proc) 327{ 328 struct kbit kbit[4]; 329 struct kbit *vmspace, *vm_map, *header, *vm_map_entry; 330 struct vm_map_entry *last; 331 size_t total; 332 u_long addr, next; 333 char *thing; 334 335 vmspace = &kbit[0]; 336 vm_map = &kbit[1]; 337 header = &kbit[2]; 338 vm_map_entry = &kbit[3]; 339 340 A(vmspace) = 0; 341 A(vm_map) = 0; 342 A(header) = 0; 343 A(vm_map_entry) = 0; 344 345 if (pid > 0) { 346 heapfound = 0; 347 A(vmspace) = (u_long)proc->kp_proc.p_vmspace; 348 S(vmspace) = sizeof(struct vmspace); 349 KDEREF(kd, vmspace); 350 thing = "proc->p_vmspace.vm_map"; 351 } else { 352 heapfound = 1; /* but really, do kernels have a heap? */ 353 A(vmspace) = 0; 354 S(vmspace) = 0; 355 thing = "kernel_map"; 356 } 357 358 if (pid > 0 && (debug & PRINT_VMSPACE)) { 359 printf("proc->p_vmspace %p = {", P(vmspace)); 360 printf(" vm_refcnt = %d,", D(vmspace, vmspace)->vm_refcnt); 361 printf(" vm_shm = %p,\n", D(vmspace, vmspace)->vm_shm); 362 printf(" vm_rssize = %d,", D(vmspace, vmspace)->vm_rssize); 363 printf(" vm_swrss = %d,", D(vmspace, vmspace)->vm_swrss); 364 printf(" vm_tsize = %d,", D(vmspace, vmspace)->vm_tsize); 365 printf(" vm_dsize = %d,\n", D(vmspace, vmspace)->vm_dsize); 366 printf(" vm_ssize = %d,", D(vmspace, vmspace)->vm_ssize); 367 printf(" vm_taddr = %p,", D(vmspace, vmspace)->vm_taddr); 368 printf(" vm_daddr = %p,\n", D(vmspace, vmspace)->vm_daddr); 369 printf(" vm_maxsaddr = %p,", 370 D(vmspace, vmspace)->vm_maxsaddr); 371 printf(" vm_minsaddr = %p }\n", 372 D(vmspace, vmspace)->vm_minsaddr); 373 } 374 375 S(vm_map) = sizeof(struct vm_map); 376 if (pid > 0) { 377 A(vm_map) = A(vmspace); 378 memcpy(D(vm_map, vm_map), &D(vmspace, vmspace)->vm_map, 379 S(vm_map)); 380 } else { 381 A(vm_map) = kernel_map_addr; 382 KDEREF(kd, vm_map); 383 } 384 if (debug & PRINT_VM_MAP) { 385 printf("%s %p = {", thing, P(vm_map)); 386 387 printf(" pmap = %p,\n", D(vm_map, vm_map)->pmap); 388 printf(" lock = <struct lock>,"); 389 printf(" header = <struct vm_map_entry>,"); 390 printf(" nentries = %d,\n", D(vm_map, vm_map)->nentries); 391 printf(" size = %lx,", D(vm_map, vm_map)->size); 392 printf(" ref_count = %d,", D(vm_map, vm_map)->ref_count); 393 printf(" ref_lock = <struct simplelock>,\n"); 394 printf(" hint = %p,", D(vm_map, vm_map)->hint); 395 printf(" hint_lock = <struct simplelock>,\n"); 396 printf(" first_free = %p,", D(vm_map, vm_map)->first_free); 397 printf(" flags = %x <%s%s%s%s%s%s >,\n", D(vm_map, vm_map)->flags, 398 D(vm_map, vm_map)->flags & VM_MAP_PAGEABLE ? " PAGEABLE" : "", 399 D(vm_map, vm_map)->flags & VM_MAP_INTRSAFE ? " INTRSAFE" : "", 400 D(vm_map, vm_map)->flags & VM_MAP_WIREFUTURE ? " WIREFUTURE" : "", 401 D(vm_map, vm_map)->flags & VM_MAP_BUSY ? " BUSY" : "", 402 D(vm_map, vm_map)->flags & VM_MAP_WANTLOCK ? " WANTLOCK" : "", 403#if VM_MAP_TOPDOWN > 0 404 D(vm_map, vm_map)->flags & VM_MAP_TOPDOWN ? " TOPDOWN" : 405#endif 406 ""); 407 printf(" flags_lock = <struct simplelock>,"); 408 printf(" timestamp = %u }\n", D(vm_map, vm_map)->timestamp); 409 } 410 if (print_ddb) { 411 printf("MAP %p: [0x%lx->0x%lx]\n", P(vm_map), 412 D(vm_map, vm_map)->min_offset, D(vm_map, vm_map)->max_offset); 413 printf("\t#ent=%d, sz=%ld, ref=%d, version=%d, flags=0x%x\n", 414 D(vm_map, vm_map)->nentries, D(vm_map, vm_map)->size, 415 D(vm_map, vm_map)->ref_count, D(vm_map, vm_map)->timestamp, 416 D(vm_map, vm_map)->flags); 417 printf("\tpmap=%p(resident=<unknown>)\n", D(vm_map, vm_map)->pmap); 418 } 419 420 A(header) = A(vm_map) + offsetof(struct vm_map, header); 421 S(header) = sizeof(struct vm_map_entry); 422 memcpy(D(header, vm_map_entry), &D(vm_map, vm_map)->header, S(header)); 423 dump_vm_map_entry(kd, vmspace, header, 1); 424 425 /* headers */ 426#ifdef DISABLED_HEADERS 427 if (print_map) 428 printf("%-*s %-*s rwx RWX CPY NCP I W A\n", 429 (int)sizeof(long) * 2 + 2, "Start", 430 (int)sizeof(long) * 2 + 2, "End"); 431 if (print_maps) 432 printf("%-*s %-*s rwxp %-*s Dev Inode File\n", 433 (int)sizeof(long) * 2 + 0, "Start", 434 (int)sizeof(long) * 2 + 0, "End", 435 (int)sizeof(long) * 2 + 0, "Offset"); 436 if (print_solaris) 437 printf("%-*s %*s Protection File\n", 438 (int)sizeof(long) * 2 + 0, "Start", 439 (int)sizeof(int) * 2 - 1, "Size "); 440#endif 441 if (print_all) 442 printf("%-*s %-*s %*s %-*s rwxpc RWX I/W/A Dev %*s - File\n", 443 (int)sizeof(long) * 2, "Start", 444 (int)sizeof(long) * 2, "End", 445 (int)sizeof(int) * 2, "Size ", 446 (int)sizeof(long) * 2, "Offset", 447 (int)sizeof(int) * 2, "Inode"); 448 449 /* these are the "sub entries" */ 450 total = 0; 451 next = (u_long)D(header, vm_map_entry)->next; 452 D(vm_map_entry, vm_map_entry)->next = 453 D(header, vm_map_entry)->next + 1; 454 last = P(header); 455 456 while (next != 0 && D(vm_map_entry, vm_map_entry)->next != last) { 457 addr = next; 458 A(vm_map_entry) = addr; 459 S(vm_map_entry) = sizeof(struct vm_map_entry); 460 KDEREF(kd, vm_map_entry); 461 total += dump_vm_map_entry(kd, vmspace, vm_map_entry, 0); 462 next = (u_long)D(vm_map_entry, vm_map_entry)->next; 463 } 464 if (print_solaris) 465 printf("%-*s %8luK\n", 466 (int)sizeof(void *) * 2 - 2, " total", 467 (unsigned long)total); 468 if (print_all) 469 printf("%-*s %9luk\n", 470 (int)sizeof(void *) * 4 - 1, " total", 471 (unsigned long)total); 472} 473 474void 475load_symbols(kvm_t *kd) 476{ 477 int rc; 478 int i; 479 480 rc = kvm_nlist(kd, &nl[0]); 481 if (rc == -1) 482 errx(1, "%s == %d", kvm_geterr(kd), rc); 483 for (i = 0; i < sizeof(nl)/sizeof(nl[0]); i++) 484 if (nl[i].n_value == 0) 485 printf("%s\n", nl[i].n_name); 486 487 uvm_vnodeops = (void*)nl[NL_UVM_VNODEOPS].n_value; 488 uvm_deviceops = (void*)nl[NL_UVM_DEVICEOPS].n_value; 489 aobj_pager = (void*)nl[NL_AOBJ_PAGER].n_value; 490#if 0 491 ubc_pager = (void*)nl[NL_UBC_PAGER].n_value; 492#endif 493 494 kernel_floor = (void*)nl[NL_KENTER].n_value; 495 nchash_addr = nl[NL_NCHASH].n_value; 496 497 _KDEREF(kd, nl[NL_MAXSSIZ].n_value, &maxssiz, 498 sizeof(maxssiz)); 499 _KDEREF(kd, nl[NL_NCHASHTBL].n_value, &nchashtbl_addr, 500 sizeof(nchashtbl_addr)); 501 _KDEREF(kd, nl[NL_KERNEL_MAP].n_value, &kernel_map_addr, 502 sizeof(kernel_map_addr)); 503} 504 505size_t 506dump_vm_map_entry(kvm_t *kd, struct kbit *vmspace, 507 struct kbit *vm_map_entry, 508 int ishead) 509{ 510 struct kbit kbit[3]; 511 struct kbit *uvm_obj, *vp, *vfs; 512 struct vm_map_entry *vme; 513 size_t sz; 514 char *name; 515 dev_t dev; 516 ino_t inode; 517 518 uvm_obj = &kbit[0]; 519 vp = &kbit[1]; 520 vfs = &kbit[2]; 521 522 A(uvm_obj) = 0; 523 A(vp) = 0; 524 A(vfs) = 0; 525 526 vme = D(vm_map_entry, vm_map_entry); 527 528 if ((ishead && (debug & PRINT_VM_MAP_HEADER)) || 529 (!ishead && (debug & PRINT_VM_MAP_ENTRY))) { 530 printf("%s %p = {", ishead ? "vm_map.header" : "vm_map_entry", 531 P(vm_map_entry)); 532 printf(" prev = %p,", vme->prev); 533 printf(" next = %p,\n", vme->next); 534 printf(" start = %lx,", vme->start); 535 printf(" end = %lx,", vme->end); 536 printf(" object.uvm_obj/sub_map = %p,\n", vme->object.uvm_obj); 537 printf(" offset = %lx,", (unsigned long)vme->offset); 538 printf(" etype = %x <%s%s%s%s >,", vme->etype, 539 vme->etype & UVM_ET_OBJ ? " OBJ" : "", 540 vme->etype & UVM_ET_SUBMAP ? " SUBMAP" : "", 541 vme->etype & UVM_ET_COPYONWRITE ? " COW" : "", 542 vme->etype & UVM_ET_NEEDSCOPY ? " NEEDSCOPY" : ""); 543 printf(" protection = %x,\n", vme->protection); 544 printf(" max_protection = %x,", vme->max_protection); 545 printf(" inheritance = %d,", vme->inheritance); 546 printf(" wired_count = %d,\n", vme->wired_count); 547 printf(" aref = <struct vm_aref>,"); 548 printf(" advice = %d,", vme->advice); 549 printf(" flags = %x <%s%s > }\n", vme->flags, 550 vme->flags & UVM_MAP_STATIC ? " STATIC" : "", 551 vme->flags & UVM_MAP_KMEM ? " KMEM" : ""); 552 } 553 554 if (ishead) 555 return (0); 556 557 A(vp) = 0; 558 A(uvm_obj) = 0; 559 560 if (vme->object.uvm_obj != NULL) { 561 P(uvm_obj) = vme->object.uvm_obj; 562 S(uvm_obj) = sizeof(struct uvm_object); 563 KDEREF(kd, uvm_obj); 564 if (UVM_ET_ISOBJ(vme) && 565 UVM_OBJ_IS_VNODE(D(uvm_obj, uvm_object))) { 566 P(vp) = P(uvm_obj); 567 S(vp) = sizeof(struct vnode); 568 KDEREF(kd, vp); 569 } 570 } 571 572 A(vfs) = NULL; 573 574 if (P(vp) != NULL && D(vp, vnode)->v_mount != NULL) { 575 P(vfs) = D(vp, vnode)->v_mount; 576 S(vfs) = sizeof(struct mount); 577 KDEREF(kd, vfs); 578 D(vp, vnode)->v_mount = D(vfs, mount); 579 } 580 581 /* 582 * dig out the device number and inode number from certain 583 * file system types. 584 */ 585#define V_DATA_IS(vp, type, d, i) do { \ 586 struct kbit data; \ 587 P(&data) = D(vp, vnode)->v_data; \ 588 S(&data) = sizeof(*D(&data, type)); \ 589 KDEREF(kd, &data); \ 590 dev = D(&data, type)->d; \ 591 inode = D(&data, type)->i; \ 592} while (0/*CONSTCOND*/) 593 594 dev = 0; 595 inode = 0; 596 597 if (A(vp) && 598 D(vp, vnode)->v_type == VREG && 599 D(vp, vnode)->v_data != NULL) { 600 switch (D(vp, vnode)->v_tag) { 601 case VT_UFS: 602 case VT_LFS: 603 case VT_EXT2FS: 604 V_DATA_IS(vp, inode, i_dev, i_number); 605 break; 606 case VT_ISOFS: 607 V_DATA_IS(vp, iso_node, i_dev, i_number); 608 break; 609 case VT_NON: 610 case VT_NFS: 611 case VT_MFS: 612 case VT_MSDOSFS: 613 case VT_LOFS: 614 case VT_FDESC: 615 case VT_PORTAL: 616 case VT_NULL: 617 case VT_UMAP: 618 case VT_KERNFS: 619 case VT_PROCFS: 620 case VT_AFS: 621 case VT_UNION: 622 case VT_ADOSFS: 623 default: 624 break; 625 } 626 } 627 628 name = findname(kd, vmspace, vm_map_entry, vp, vfs, uvm_obj); 629 630 if (print_map) { 631 printf("0x%lx 0x%lx %c%c%c %c%c%c %s %s %d %d %d", 632 vme->start, vme->end, 633 (vme->protection & VM_PROT_READ) ? 'r' : '-', 634 (vme->protection & VM_PROT_WRITE) ? 'w' : '-', 635 (vme->protection & VM_PROT_EXECUTE) ? 'x' : '-', 636 (vme->max_protection & VM_PROT_READ) ? 'r' : '-', 637 (vme->max_protection & VM_PROT_WRITE) ? 'w' : '-', 638 (vme->max_protection & VM_PROT_EXECUTE) ? 'x' : '-', 639 (vme->etype & UVM_ET_COPYONWRITE) ? "COW" : "NCOW", 640 (vme->etype & UVM_ET_NEEDSCOPY) ? "NC" : "NNC", 641 vme->inheritance, vme->wired_count, 642 vme->advice); 643 if (verbose) { 644 if (inode) 645 printf(" %d,%d %d", 646 major(dev), minor(dev), inode); 647 if (name[0]) 648 printf(" %s", name); 649 } 650 printf("\n"); 651 } 652 653 if (print_maps) 654 printf("%0*lx-%0*lx %c%c%c%c %0*lx %02x:%02x %d %s\n", 655 (int)sizeof(void *) * 2, vme->start, 656 (int)sizeof(void *) * 2, vme->end, 657 (vme->protection & VM_PROT_READ) ? 'r' : '-', 658 (vme->protection & VM_PROT_WRITE) ? 'w' : '-', 659 (vme->protection & VM_PROT_EXECUTE) ? 'x' : '-', 660 (vme->etype & UVM_ET_COPYONWRITE) ? 'p' : 's', 661 (int)sizeof(void *) * 2, 662 (unsigned long)vme->offset, 663 major(dev), minor(dev), inode, inode ? name : ""); 664 665 if (print_ddb) { 666 printf(" - %p: 0x%lx->0x%lx: obj=%p/0x%lx, amap=%p/%d\n", 667 P(vm_map_entry), vme->start, vme->end, 668 vme->object.uvm_obj, (unsigned long)vme->offset, 669 vme->aref.ar_amap, vme->aref.ar_pageoff); 670 printf("\tsubmap=%c, cow=%c, nc=%c, prot(max)=%d/%d, inh=%d, " 671 "wc=%d, adv=%d\n", 672 (vme->etype & UVM_ET_SUBMAP) ? 'T' : 'F', 673 (vme->etype & UVM_ET_COPYONWRITE) ? 'T' : 'F', 674 (vme->etype & UVM_ET_NEEDSCOPY) ? 'T' : 'F', 675 vme->protection, vme->max_protection, 676 vme->inheritance, vme->wired_count, vme->advice); 677 if (inode && verbose) 678 printf("\t(dev=%d,%d ino=%d [%s] [%p])\n", 679 major(dev), minor(dev), inode, 680 inode ? name : "", P(vp)); 681 else if (name[0] == ' ' && verbose) 682 printf("\t(%s)\n", &name[2]); 683 } 684 685 sz = 0; 686 if (print_solaris) { 687 char prot[30]; 688 689 prot[0] = '\0'; 690 prot[1] = '\0'; 691 if (vme->protection & VM_PROT_READ) 692 strcat(prot, "/read"); 693 if (vme->protection & VM_PROT_WRITE) 694 strcat(prot, "/write"); 695 if (vme->protection & VM_PROT_EXECUTE) 696 strcat(prot, "/exec"); 697 698 sz = (size_t)((vme->end - vme->start) / 1024); 699 printf("%0*lX %6luK %-15s %s\n", 700 (int)sizeof(void *) * 2, 701 (unsigned long)vme->start, 702 (unsigned long)sz, 703 &prot[1], 704 name); 705 } 706 707 if (print_all) { 708 sz = (size_t)((vme->end - vme->start) / 1024); 709 printf(A(vp) ? 710 "%0*lx-%0*lx %7luk %0*lx %c%c%c%c%c (%c%c%c) %d/%d/%d %02d:%02d %7d - %s [%p]\n" : 711 "%0*lx-%0*lx %7luk %0*lx %c%c%c%c%c (%c%c%c) %d/%d/%d %02d:%02d %7d - %s\n", 712 (int)sizeof(void *) * 2, 713 vme->start, 714 (int)sizeof(void *) * 2, 715 vme->end - (vme->start != vme->end ? 1 : 0), 716 (unsigned long)sz, 717 (int)sizeof(void *) * 2, 718 (unsigned long)vme->offset, 719 (vme->protection & VM_PROT_READ) ? 'r' : '-', 720 (vme->protection & VM_PROT_WRITE) ? 'w' : '-', 721 (vme->protection & VM_PROT_EXECUTE) ? 'x' : '-', 722 (vme->etype & UVM_ET_COPYONWRITE) ? 'p' : 's', 723 (vme->etype & UVM_ET_NEEDSCOPY) ? '+' : '-', 724 (vme->max_protection & VM_PROT_READ) ? 'r' : '-', 725 (vme->max_protection & VM_PROT_WRITE) ? 'w' : '-', 726 (vme->max_protection & VM_PROT_EXECUTE) ? 'x' : '-', 727 vme->inheritance, 728 vme->wired_count, 729 vme->advice, 730 major(dev), minor(dev), inode, 731 name, P(vp)); 732 } 733 734 /* no access allowed, don't count space */ 735 if ((vme->protection & rwx) == 0) 736 sz = 0; 737 738 return (sz); 739} 740 741char* 742findname(kvm_t *kd, struct kbit *vmspace, 743 struct kbit *vm_map_entry, struct kbit *vp, 744 struct kbit *vfs, struct kbit *uvm_obj) 745{ 746 static char buf[1024], *name; 747 struct vm_map_entry *vme; 748 size_t l; 749 750 vme = D(vm_map_entry, vm_map_entry); 751 752 if (UVM_ET_ISOBJ(vme)) { 753 if (A(vfs)) { 754 l = (unsigned)strlen(D(vfs, mount)->mnt_stat.f_mntonname); 755 switch (search_cache(kd, vp, &name, buf, sizeof(buf))) { 756 case 0: /* found something */ 757 name--; 758 *name = '/'; 759 /*FALLTHROUGH*/ 760 case 2: /* found nothing */ 761 name -= 6; 762 memcpy(name, " -??- ", (size_t)6); 763 name -= l; 764 memcpy(name, 765 D(vfs, mount)->mnt_stat.f_mntonname, l); 766 break; 767 case 1: /* all is well */ 768 name--; 769 *name = '/'; 770 if (l != 1) { 771 name -= l; 772 memcpy(name, 773 D(vfs, mount)->mnt_stat.f_mntonname, l); 774 } 775 break; 776 } 777 } 778 else if (UVM_OBJ_IS_DEVICE(D(uvm_obj, uvm_object))) { 779 struct kbit kdev; 780 dev_t dev; 781 782 P(&kdev) = P(uvm_obj); 783 S(&kdev) = sizeof(struct uvm_device); 784 KDEREF(kd, &kdev); 785 dev = D(&kdev, uvm_device)->u_device; 786 name = devname(dev, S_IFCHR); 787 if (name != NULL) 788 snprintf(buf, sizeof(buf), "/dev/%s", name); 789 else 790 snprintf(buf, sizeof(buf), " [ device %d,%d ]", 791 major(dev), minor(dev)); 792 name = buf; 793 } 794 else if (UVM_OBJ_IS_AOBJ(D(uvm_obj, uvm_object))) 795 name = " [ uvm_aobj ]"; 796#if 0 797 else if (UVM_OBJ_IS_UBCPAGER(D(uvm_obj, uvm_object))) 798 name = " [ ubc_pager ]"; 799#endif 800 else if (UVM_OBJ_IS_VNODE(D(uvm_obj, uvm_object))) 801 name = " [ ?VNODE? ]"; 802 else { 803 snprintf(buf, sizeof(buf), " [ ?? %p ?? ]", 804 D(uvm_obj, uvm_object)->pgops); 805 name = buf; 806 } 807 } 808 809 else if (D(vmspace, vmspace)->vm_maxsaddr <= 810 (caddr_t)vme->start && 811 (D(vmspace, vmspace)->vm_maxsaddr + (size_t)maxssiz) >= 812 (caddr_t)vme->end) 813 name = " [ stack ]"; 814 815 else if ((vme->protection & rwx) == rwx && !heapfound) { 816 /* XXX this could probably be done better */ 817 heapfound = 1; 818 name = " [ heap ]"; 819 } 820 821 else 822 name = " [ anon ]"; 823 824 return (name); 825} 826 827int 828search_cache(kvm_t *kd, struct kbit *vp, char **name, char *buf, size_t blen) 829{ 830 char *o, *e; 831 struct cache_entry *ce; 832 struct kbit svp; 833 u_long cid; 834 835 if (nchashtbl == NULL) 836 load_name_cache(kd); 837 838 P(&svp) = P(vp); 839 S(&svp) = sizeof(struct vnode); 840 cid = D(vp, vnode)->v_id; 841 842 e = &buf[blen - 1]; 843 o = e; 844 do { 845 LIST_FOREACH(ce, &lcache, ce_next) 846 if (ce->ce_vp == P(&svp) && ce->ce_cid == cid) 847 break; 848 if (ce && ce->ce_vp == P(&svp) && ce->ce_cid == cid) { 849 if (o != e) 850 *(--o) = '/'; 851 o -= ce->ce_nlen; 852 memcpy(o, ce->ce_name, (unsigned)ce->ce_nlen); 853 P(&svp) = ce->ce_pvp; 854 cid = ce->ce_pcid; 855 } 856 else 857 break; 858 } while (1/*CONSTCOND*/); 859 *e = '\0'; 860 *name = o; 861 862 if (e == o) 863 return (2); 864 865 KDEREF(kd, &svp); 866 return (D(&svp, vnode)->v_flag & VROOT); 867} 868 869void 870load_name_cache(kvm_t *kd) 871{ 872 struct namecache _ncp, *ncp, *oncp; 873 struct nchashhead _ncpp, *ncpp; 874 u_long nchash; 875 int i; 876 877 LIST_INIT(&lcache); 878 879 _KDEREF(kd, nchash_addr, &nchash, sizeof(nchash)); 880 nchashtbl = malloc(sizeof(nchashtbl) * (int)nchash); 881 _KDEREF(kd, nchashtbl_addr, nchashtbl, 882 sizeof(nchashtbl) * (int)nchash); 883 884 ncpp = &_ncpp; 885 886 for (i = 0; i <= nchash; i++) { 887 ncpp = &nchashtbl[i]; 888 oncp = NULL; 889 LIST_FOREACH(ncp, ncpp, nc_hash) { 890 if (ncp == oncp || 891 (void*)ncp < kernel_floor || 892 ncp == (void*)0xdeadbeef) 893 break; 894 oncp = ncp; 895 _KDEREF(kd, (u_long)ncp, &_ncp, sizeof(*ncp)); 896 ncp = &_ncp; 897 if ((void*)ncp->nc_vp > kernel_floor && 898 ncp->nc_nlen > 0) { 899 if (ncp->nc_nlen > 2 || 900 ncp->nc_name[0] != '.' || 901 (ncp->nc_name[1] != '.' && 902 ncp->nc_nlen != 1)) 903 cache_enter(ncp); 904 } 905 } 906 } 907} 908 909void 910cache_enter(struct namecache *ncp) 911{ 912 struct cache_entry *ce; 913 914 if (debug & DUMP_NAMEI_CACHE) 915 printf("ncp->nc_vp %10p, ncp->nc_dvp %10p, ncp->nc_nlen " 916 "%3d [%.*s] (nc_dvpid=%lu, nc_vpid=%lu)\n", 917 ncp->nc_vp, ncp->nc_dvp, 918 ncp->nc_nlen, ncp->nc_nlen, ncp->nc_name, 919 ncp->nc_dvpid, ncp->nc_vpid); 920 921 ce = malloc(sizeof(struct cache_entry)); 922 923 ce->ce_vp = ncp->nc_vp; 924 ce->ce_pvp = ncp->nc_dvp; 925 ce->ce_cid = ncp->nc_vpid; 926 ce->ce_pcid = ncp->nc_dvpid; 927 ce->ce_nlen = ncp->nc_nlen; 928 strncpy(ce->ce_name, ncp->nc_name, sizeof(ce->ce_name)); 929 ce->ce_name[MIN(ce->ce_nlen, sizeof(ce->ce_name) - 1)] = '\0'; 930 931 LIST_INSERT_HEAD(&lcache, ce, ce_next); 932} 933