source: trunk/kLdr/kLdrHlpHeap.c@ 2826

Last change on this file since 2826 was 2826, checked in by bird, 19 years ago

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[2826]1/* $Id: kLdrHlpHeap.c 2826 2006-10-22 15:58:55Z bird $ */
[2825]2/** @file
3 *
4 * kLdr - The Dynamic Loader, Helper Functions, Heap.
5 *
6 * Copyright (c) 2006 knut st. osmundsen <bird-kbuild-src@anduin.net>
7 *
8 *
9 * This file is part of kLdr.
10 *
11 * kLdr is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * kLdr is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with kLdr; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 */
26
27#define KLDRHEAP_STRICT
28
29/*******************************************************************************
30* Header Files *
31*******************************************************************************/
32#ifdef __OS2__
33# define INCL_BASE
34# define INCL_ERRORS
35# include <os2.h>
36#elif defined(__WIN__)
37# include <Windows.h>
38#else
39# error "port me"
40#endif
41
42#include <kLdr.h>
43#include "kLdrHlp.h"
44
45
46
47/*******************************************************************************
48* Structures and Typedefs *
49*******************************************************************************/
50/**
51 * A heap block.
52 */
53typedef struct KLDRHEAPBLOCK
54{
55 /** Next block in the global list. */
56 struct KLDRHEAPBLOCK *pNext;
57 /** Previous block in the global list. */
58 struct KLDRHEAPBLOCK *pPrev;
59 /** The size of this block including this header. */
60 size_t cb;
61 /** The flags. */
62 size_t fFlags;
63} KLDRHEAPBLOCK, *PKLDRHEAPBLOCK;
64
65/** Indicates whether the block is free (set) or allocated (clear). */
66#define KLDRHEAPBLOCK_FLAG_FREE ((size_t)1)
67/** Valid flag mask. */
68#define KLDRHEAPBLOCK_FLAG_MASK ((size_t)1)
69
70/** Checks if the block is freed. */
71#define KLDRHEAPBLOCK_IS_FREE(pB) ( (pB)->fFlags & KLDRHEAPBLOCK_FLAG_FREE )
72/** Check if the block is allocated. */
73#define KLDRHEAPBLOCK_IS_ALLOCATED(pB) !KLDRHEAPBLOCK_IS_FREE(pB)
74/** Checks if the two blocks are adjacent.
75 * Assumes pB1 < pB2. */
76#define KLDRHEAPBLOCK_IS_ADJACENT(pB1, pB2) \
77 ( ((uintptr_t)(pB1) + (pB1)->cb) == (uintptr_t)(pB2) )
78
79/** The block alignment. */
80#define KLDRHEAPBLOCK_ALIGNMENT sizeof(KLDRHEAPBLOCK)
81
82/** @def KLDRHEAP_ASSERT
83 * Heap assertion. */
84/** @def KLDRHEAP_ASSERT_BLOCK
85 * Assert that a heap block is valid. */
86/** @def KLDRHEAP_ASSERT_FREE
87 * Assert that a heap free block is valid. */
88#ifdef KLDRHEAP_STRICT
89# define KLDRHEAP_ASSERT(expr) kldrHlpAssert(expr)
90
91# define KLDRHEAP_ASSERT_BLOCK(pHeap, pBlock) \
92 do { \
93 KLDRHEAP_ASSERT(!((pBlock)->fFlags & ~KLDRHEAPBLOCK_FLAG_MASK)); \
94 KLDRHEAP_ASSERT(!((pBlock)->cb & (KLDRHEAPBLOCK_ALIGNMENT - 1))); \
95 KLDRHEAP_ASSERT((uintptr_t)(pBlock)->pPrev < (uintptr_t)(pBlock)); \
96 KLDRHEAP_ASSERT((uintptr_t)(pBlock)->pNext > (uintptr_t)(pBlock) || !(pBlock)->pNext); \
97 } while (0)
98
99# define KLDRHEAP_ASSERT_FREE(pHeap, pFree) \
100 do { \
101 KLDRHEAP_ASSERT_BLOCK(pHeap, &(pFree)->Core); \
102 KLDRHEAP_ASSERT((uintptr_t)(pFree)->pPrev < (uintptr_t)(pFree)); \
103 KLDRHEAP_ASSERT((uintptr_t)(pFree)->pNext > (uintptr_t)(pFree) || !(pFree)->pNext); \
104 } while (0)
105
106#else
107# define KLDRHEAP_ASSERT(expr) do { } while (0)
108# define KLDRHEAP_ASSERT_BLOCK(pH, pB) do { } while (0)
109# define KLDRHEAP_ASSERT_FREE(pH, pF) do { } while (0)
110#endif
111
112
113/**
114 * A free heap block.
115 */
116typedef struct KLDRHEAPFREE
117{
118 /** The core bit which we have in common with used blocks. */
119 KLDRHEAPBLOCK Core;
120 /** The next free block. */
121 struct KLDRHEAPFREE *pNext;
122 /** The previous free block. */
123 struct KLDRHEAPFREE *pPrev;
124} KLDRHEAPFREE, *PKLDRHEAPFREE;
125
126
127/**
128 * A heap segment.
129 */
130typedef struct KLDRHEAPSEG
131{
132 /** The base address of the segment. */
133 void *pvBase;
134 /** The length of the segment (in bytes). */
135 size_t cb;
136} KLDRHEAPSEG, *PKLDRHEAPSEG;
137
138/**
139 * Bundle of heap segments.
140 */
141typedef struct KLDRHEAPSEGS
142{
143 /** Pointer to the next segment bundle. */
144 struct KLDRHEAPSEGS *pNext;
145 /** The number of segments used. */
146 uint32_t cSegs;
147 /** Array of chunks. */
148 KLDRHEAPSEG aSegs[64];
149} KLDRHEAPSEGS, *PKLDRHEAPSEGS;
150
151
152/**
153 * Heap anchor block.
154 */
155typedef struct KLDRHEAPANCHOR
156{
157 /** Head of the block list. */
158 PKLDRHEAPBLOCK pHead;
159 /** Tail of the block list. */
160 PKLDRHEAPBLOCK pTail;
161 /** Head of the free list. */
162 PKLDRHEAPFREE pFreeHead;
163 /** Head segment bundle.
164 * The order of this list is important, but a bit peculiar.
165 * Logically, SegsHead::pNext is the tail pointer. */
166 KLDRHEAPSEGS SegsHead;
167} KLDRHEAPANCHOR, *PKLDRHEAPANCHOR;
168
169
170
171/*******************************************************************************
172* Global Variables *
173*******************************************************************************/
174/** The heap anchor block. */
175static KLDRHEAPANCHOR g_Heap;
176
177
178/*******************************************************************************
179* Internal Functions *
180*******************************************************************************/
181static int kLdrHeapInit(PKLDRHEAPANCHOR pHeap);
182static void kLdrHeapDelete(PKLDRHEAPANCHOR pHeap);
183static void * kLdrHeapAlloc(PKLDRHEAPANCHOR pHeap, size_t cb);
184static void kLdrHeapFree(PKLDRHEAPANCHOR pHeap, void *pv);
185static void kLdrHeapDonate(PKLDRHEAPANCHOR pHeap, void *pv, size_t cb);
186static int kLdrHeapSegAlloc(PKLDRHEAPSEG pSeg, size_t cb);
187static void kLdrHeapSegFree(PKLDRHEAPSEG pSeg);
188
189
190/**
191 * Initializes the kLdr heap.
192 *
193 * @returns 0 on success, non-zero OS specific status code on failure.
194 */
195int kldrHlpHeapInit(void)
196{
197 return kLdrHeapInit(&g_Heap);
198}
199
200
201/**
202 * Terminates the kLdr heap.
203 */
204void kldrHlpHeapTerm(void)
205{
206 kLdrHeapDelete(&g_Heap);
207}
208
209
210/**
211 * Allocates memory from the kLdr heap.
212 *
213 * @returns Pointer to the allocated heap block. NULL if we can't satify the request.
214 * @param cb The requested heap block size.
215 */
216void *kldrHlpAlloc(size_t cb)
217{
218 return kLdrHeapAlloc(&g_Heap, cb);
219}
220
221
222/**
223 * Frees memory allocated off the kLdr heap.
224 *
225 * @param pv Pointer to the heap block returned by kldrHlpAlloc().
226 */
227void kldrHlpFree(void *pv)
228{
229 kLdrHeapFree(&g_Heap, pv);
230}
231
232
233/**
234 * Donates memory to the heap.
235 *
236 * @param pv The address of the memory.
237 * @param cb The amount of memory.
238 */
239void kldrHlpHeapDonate(void *pv, size_t cb)
240{
241 kLdrHeapDonate(&g_Heap, pv, cb);
242}
243
244
245
246/**
247 * Initializes the heap anchor.
248 *
249 * @returns 0 on success, non-zero on failure.
250 * @param pHeap The heap anchor to be initialized.
251 */
252static int kLdrHeapInit(PKLDRHEAPANCHOR pHeap)
253{
254 pHeap->pHead = NULL;
255 pHeap->pTail = NULL;
256 pHeap->pFreeHead = NULL;
257 pHeap->SegsHead.pNext = NULL;
258 pHeap->SegsHead.cSegs = 0;
259 return 0;
260}
261
262
263/**
264 * Deletes a heap.
265 * This will free all resources (memory) associated with the heap.
266 *
267 * @param pHeap The heap to be deleted.
268 */
269static void kLdrHeapDelete(PKLDRHEAPANCHOR pHeap)
270{
271 /*
272 * Free the segments, LIFO order.
273 * The head element is the last to be free, while the
274 * head.pNext is really the tail pointer - neat or what?
275 */
276 while ( pHeap->SegsHead.cSegs
277 || pHeap->SegsHead.pNext)
278 {
279 /* find the tail. */
280 uint32_t iSeg;
281 PKLDRHEAPSEGS pSegs = pHeap->SegsHead.pNext;
282 if (!pSegs)
283 pSegs = &pHeap->SegsHead;
284 else
285 {
286 pHeap->SegsHead.pNext = pSegs->pNext;
287 pSegs->pNext = NULL;
288 }
289
290 /* free the segments */
291 iSeg = pSegs->cSegs;
292 while (iSeg-- > 0)
293 kLdrHeapSegFree(&pSegs->aSegs[iSeg]);
294 pSegs->cSegs = 0;
295 }
296
297 /* Zap the anchor. */
298 pHeap->pHead = NULL;
299 pHeap->pTail = NULL;
300 pHeap->pFreeHead = NULL;
301 pHeap->SegsHead.pNext = NULL;
302 pHeap->SegsHead.cSegs = 0;
303}
304
305
306/**
307 * Internal heap block allocator.
308 */
309static void * kldrHeapAllocSub(PKLDRHEAPANCHOR pHeap, size_t cb)
310{
311 /*
312 * Find a fitting free block.
313 */
314 const size_t cbReq = KLDR_ALIGN_Z(cb + sizeof(KLDRHEAPBLOCK), KLDRHEAPBLOCK_ALIGNMENT);
315 PKLDRHEAPFREE pCur = pHeap->pFreeHead;
316 while (pCur)
317 {
318 if (pCur->Core.cb >= cbReq)
319 {
320 if (pCur->Core.cb != cbReq)
321 {
322 /* check and see if there is a better match close by. */
323 PKLDRHEAPFREE pCur2 = pCur->pNext;
324 unsigned i = 16;
325 while (i-- > 0 && pCur2)
326 {
327 if (pCur2->Core.cb >= cbReq)
328 {
329 if (pCur2->Core.cb == cbReq)
330 {
331 pCur = pCur2;
332 break;
333 }
334 if (pCur2->Core.cb < pCur->Core.cb)
335 pCur = pCur2;
336 }
337
338 /* next */
339 KLDRHEAP_ASSERT_FREE(pHeap, pCur2);
340 pCur2 = pCur2->pNext;
341 }
342 }
343 break;
344 }
345
346 /* next */
347 KLDRHEAP_ASSERT_FREE(pHeap, pCur);
348 pCur = pCur->pNext;
349 }
350 if (!pCur)
351 return NULL;
352 KLDRHEAP_ASSERT_FREE(pHeap, pCur);
353
354 /*
355 * Do we need to split out a block?
356 */
357 if (pCur->Core.cb - cbReq >= KLDRHEAPBLOCK_ALIGNMENT * 2)
358 {
359 PKLDRHEAPBLOCK pNew;
360
361 pCur->Core.cb -= cbReq;
362
363 pNew = (PKLDRHEAPBLOCK)((uintptr_t)pCur + pCur->Core.cb);
364 pNew->fFlags = 0;
365 pNew->cb = cbReq;
366 pNew->pNext = pCur->Core.pNext;
367 if (pNew->pNext)
368 pNew->pNext->pPrev = pNew;
369 else
370 pHeap->pTail = pNew;
371 pNew->pPrev = &pCur->Core;
372 pCur->Core.pNext = pNew;
373
374 KLDRHEAP_ASSERT_FREE(pHeap, pCur);
375 KLDRHEAP_ASSERT_BLOCK(pHeap, pNew);
376 return pNew + 1;
377 }
378
379 /*
380 * No, just unlink it from the free list and return.
381 */
382 if (pCur->pNext)
383 pCur->pNext->pPrev = pCur->pPrev;
384 if (pCur->pPrev)
385 pCur->pPrev->pNext = pCur->pNext;
386 else
387 pHeap->pFreeHead = pCur->pNext;
388 pCur->Core.fFlags &= ~KLDRHEAPBLOCK_FLAG_FREE;
389
390 KLDRHEAP_ASSERT_BLOCK(pHeap, &pCur->Core);
391 return &pCur->Core + 1;
392}
393
394
395/**
396 * Allocate a heap block.
397 *
398 * @returns Pointer to the allocated heap block on success. On failure NULL is returned.
399 * @param pHeap The heap.
400 * @param cb The requested heap block size.
401 */
402static void * kLdrHeapAlloc(PKLDRHEAPANCHOR pHeap, size_t cb)
403{
404 void *pv;
405
406 /* adjust the requested block size. */
407 cb = KLDR_ALIGN_Z(cb, KLDRHEAPBLOCK_ALIGNMENT);
408 if (!cb)
409 cb = KLDRHEAPBLOCK_ALIGNMENT;
410
411 /* try allocate the block. */
412 pv = kldrHeapAllocSub(pHeap, cb);
413 if (!pv)
414 {
415 /*
416 * Failed, add another segment and try again.
417 */
418 KLDRHEAPSEG Seg;
419 if (kLdrHeapSegAlloc(&Seg, cb + sizeof(KLDRHEAPSEGS) + sizeof(KLDRHEAPBLOCK) * 16))
420 return NULL;
421
422 /* donate before insterting the segment, this makes sure we got heap to expand the segment list. */
423 kLdrHeapDonate(pHeap, Seg.pvBase, Seg.cb);
424
425 /* insert the segment. */
426 if (pHeap->SegsHead.cSegs < sizeof(pHeap->SegsHead.aSegs) / sizeof(pHeap->SegsHead.aSegs[0]))
427 pHeap->SegsHead.aSegs[pHeap->SegsHead.cSegs++] = Seg;
428 else if ( pHeap->SegsHead.pNext
429 && pHeap->SegsHead.pNext->cSegs < sizeof(pHeap->SegsHead.aSegs) / sizeof(pHeap->SegsHead.aSegs[0]))
430 pHeap->SegsHead.pNext->aSegs[pHeap->SegsHead.pNext->cSegs++] = Seg;
431 else
432 {
433 PKLDRHEAPSEGS pSegs = (PKLDRHEAPSEGS)kldrHeapAllocSub(pHeap, sizeof(*pSegs));
434 KLDRHEAP_ASSERT(pSegs);
435 pSegs->pNext = pHeap->SegsHead.pNext;
436 pHeap->SegsHead.pNext = pSegs;
437 pSegs->aSegs[0] = Seg;
438 pSegs->cSegs = 1;
439 }
440
441 /* retry (should succeed) */
442 pv = kldrHeapAllocSub(pHeap, cb);
443 KLDRHEAP_ASSERT(pv);
444 }
445
446 return pv;
447}
448
449
450/**
451 * Frees a heap block.
452 *
453 * @param pHeap The heap.
454 * @param pv The pointer returned by kLdrHeapAlloc().
455 */
456static void kLdrHeapFree(PKLDRHEAPANCHOR pHeap, void *pv)
457{
458 PKLDRHEAPFREE pFree, pLeft, pRight;
459
460 /* ignore NULL pointers. */
461 if (!pv)
462 return;
463
464 pFree = (PKLDRHEAPFREE)((PKLDRHEAPBLOCK)pv - 1);
465 KLDRHEAP_ASSERT_BLOCK(pHeap, &pFree->Core);
466 KLDRHEAP_ASSERT(KLDRHEAPBLOCK_IS_ALLOCATED(&pFree->Core));
467
468 /*
469 * Merge or link with left node?
470 */
471 pLeft = (PKLDRHEAPFREE)pFree->Core.pPrev;
472 if ( pLeft
473 && KLDRHEAPBLOCK_IS_FREE(&pLeft->Core)
474 && KLDRHEAPBLOCK_IS_ADJACENT(&pLeft->Core, &pFree->Core)
475 )
476 {
477 /* merge left */
478 pLeft->Core.pNext = pFree->Core.pNext;
479 if (pFree->Core.pNext)
480 pFree->Core.pNext->pPrev = &pLeft->Core;
481 else
482 pHeap->pTail = &pLeft->Core;
483
484 pLeft->Core.cb += pFree->Core.cb;
485 pFree->Core.fFlags = ~0;
486 pFree = pLeft;
487 }
488 else
489 {
490 /* link left */
491 while (pLeft && !KLDRHEAPBLOCK_IS_FREE(&pLeft->Core))
492 pLeft = (PKLDRHEAPFREE)pLeft->Core.pPrev;
493 if (pLeft)
494 {
495 pFree->pPrev = pLeft;
496 pFree->pNext = pLeft->pNext;
497 if (pLeft->pNext)
498 pLeft->pNext->pPrev = pFree;
499 pLeft->pNext = pFree;
500 }
501 else
502 {
503 pFree->pPrev = NULL;
504 pFree->pNext = pHeap->pFreeHead;
505 if (pHeap->pFreeHead)
506 pHeap->pFreeHead->pPrev = pFree;
507 pHeap->pFreeHead = pFree;
508 }
509 pFree->Core.fFlags |= KLDRHEAPBLOCK_FLAG_FREE;
510 }
511 KLDRHEAP_ASSERT_FREE(pHeap, pFree);
512
513 /*
514 * Merge right?
515 */
516 pRight = (PKLDRHEAPFREE)pFree->Core.pNext;
517 if ( pRight
518 && KLDRHEAPBLOCK_IS_FREE(&pRight->Core)
519 && KLDRHEAPBLOCK_IS_ADJACENT(&pFree->Core, pRight)
520 )
521 {
522 /* unlink pRight from the global list. */
523 pFree->Core.pNext = pRight->Core.pNext;
524 if (pRight->Core.pNext)
525 pRight->Core.pNext->pPrev = &pFree->Core;
526 else
527 pHeap->pTail = &pFree->Core;
528
529 /* unlink pRight from the free list. */
530 pFree->pNext = pRight->pNext;
531 if (pRight->pNext)
532 pRight->pNext->pPrev = pFree;
533
534 /* update size and invalidate pRight. */
535 pFree->Core.cb += pRight->Core.cb;
536 pRight->Core.fFlags = ~0;
537 }
538}
539
540
541/**
542 * Donates memory to the heap.
543 *
544 * The donated memory is returned to the donator when the heap is deleted.
545 *
546 * @param pHeap The heap
547 * @param pv The pointer to the donated memory.
548 * @param cb Size of the donated memory.
549 */
550static void kLdrHeapDonate(PKLDRHEAPANCHOR pHeap, void *pv, size_t cb)
551{
552 PKLDRHEAPBLOCK pBlock;
553
554 /*
555 * Don't bother with small donations.
556 */
557 if (cb < KLDRHEAPBLOCK_ALIGNMENT * 4)
558 return;
559
560 /*
561 * Align the donation on a heap block boundrary.
562 */
563 if ((uintptr_t)pv & (KLDRHEAPBLOCK_ALIGNMENT - 1))
564 {
565 cb -= (uintptr_t)pv & 31;
566 pv = KLDR_ALIGN_P(pv, KLDRHEAPBLOCK_ALIGNMENT);
567 }
568 cb &= ~(size_t)(KLDRHEAPBLOCK_ALIGNMENT - 1);
569
570 /*
571 * Create an allocated block, link it and free it.
572 */
573 pBlock = (PKLDRHEAPBLOCK)pv;
574 pBlock->pNext = NULL;
575 pBlock->pPrev = NULL;
576 pBlock->cb = cb;
577 pBlock->fFlags = 0;
578
579 /* insert */
580 if ((uintptr_t)pBlock < (uintptr_t)pHeap->pHead)
581 {
582 /* head */
583 pBlock->pNext = pHeap->pHead;
584 pHeap->pHead->pPrev = pBlock;
585 pHeap->pHead = pBlock;
586 }
587 else if ((uintptr_t)pBlock > (uintptr_t)pHeap->pTail)
588 {
589 if (pHeap->pTail)
590 {
591 /* tail */
592 pBlock->pPrev = pHeap->pTail;
593 pHeap->pTail->pNext = pBlock;
594 pHeap->pTail = pBlock;
595 }
596 else
597 {
598 /* first */
599 pHeap->pHead = pBlock;
600 pHeap->pTail = pBlock;
601 }
602 }
603 else
604 {
605 /* in list (unlikely) */
606 PKLDRHEAPBLOCK pPrev = pHeap->pHead;
607 PKLDRHEAPBLOCK pCur = pPrev->pNext;
608 for (;;)
609 {
610 KLDRHEAP_ASSERT_BLOCK(pHeap, pCur);
611 if ((uintptr_t)pCur > (uintptr_t)pBlock)
612 break;
613 pPrev = pCur;
614 pCur = pCur->pNext;
615 }
616
617 pBlock->pNext = pCur;
618 pBlock->pPrev = pPrev;
619 pPrev->pNext = pBlock;
620 pCur->pPrev = pBlock;
621 }
622 KLDRHEAP_ASSERT_BLOCK(pHeap, pBlock);
623
624 /* free it */
625 kLdrHeapFree(pHeap, pBlock + 1);
626}
627
628
629
630/**
631 * Allocates a new segment.
632 *
633 * @returns 0 on success, non-zero OS status code on failure.
634 * @param pSeg Where to put the info about the allocated segment.
635 * @param cbMin The minimum segment size.
636 */
637static int kLdrHeapSegAlloc(PKLDRHEAPSEG pSeg, size_t cbMin)
638{
639#ifdef __OS2__
640 APIRET rc;
641
642 pSeg->cb = (cbMin + 0xffff) & ~(size_t)0xffff;
643 pSeg->pvBase = NULL;
644 rc = DosAllocMem(&pSeg->pvBase, pSeg->cb, PAG_COMMIT | PAG_READ | PAG_WRITE | OBJ_ANY);
645 if (rc == ERROR_INVALID_PARAMETER)
646 rc = DosAllocMem(&pSeg->pvBase, pSeg->cb, PAG_COMMIT | PAG_READ | PAG_WRITE);
647 if (rc)
648 {
649 pSeg->pvBase = NULL;
650 pSeg->cb = 0;
651 return rc;
652 }
653
654#elif defined(__WIN__)
655 pSeg->cb = (cbMin + 0xffff) & ~(size_t)0xffff;
656 pSeg->pvBase = VirtualAlloc(NULL, pSeg->cb, MEM_COMMIT, PAGE_READWRITE);
657 if (!pSeg->pvBase)
658 {
659 pSeg->cb = 0;
660 return GetLastError();
661 }
662
663#else
664# error "Port me"
665#endif
666
667 return 0;
668}
669
670
671/**
672 * Frees a segment.
673 *
674 * @param pSeg The segment to be freed.
675 */
676static void kLdrHeapSegFree(PKLDRHEAPSEG pSeg)
677{
678#ifdef __OS2__
679 APIRET rc = DosFreeMem(pSeg->pvBase);
680 KLDRHEAP_ASSERT(!rc); (void)rc;
681
682#elif defined(__WIN__)
683 BOOL fRc = VirtualFree(pSeg->pvBase, 0 /*pSeg->cb*/, MEM_RELEASE);
684 KLDRHEAP_ASSERT(fRc); (void)fRc;
685
686#else
687# error "Port me"
688#endif
689}
690
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