diff options
Diffstat (limited to 'src/lib/libc/stdlib/malloc.c')
| -rw-r--r-- | src/lib/libc/stdlib/malloc.c | 79 |
1 files changed, 1 insertions, 78 deletions
diff --git a/src/lib/libc/stdlib/malloc.c b/src/lib/libc/stdlib/malloc.c index 513defccbc..0912b904b8 100644 --- a/src/lib/libc/stdlib/malloc.c +++ b/src/lib/libc/stdlib/malloc.c | |||
| @@ -1,4 +1,4 @@ | |||
| 1 | /* $OpenBSD: malloc.c,v 1.253 2018/11/19 22:50:24 guenther Exp $ */ | 1 | /* $OpenBSD: malloc.c,v 1.254 2018/11/21 06:57:04 otto Exp $ */ |
| 2 | /* | 2 | /* |
| 3 | * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek <otto@drijf.net> | 3 | * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek <otto@drijf.net> |
| 4 | * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org> | 4 | * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org> |
| @@ -1466,83 +1466,6 @@ freezero(void *ptr, size_t sz) | |||
| 1466 | } | 1466 | } |
| 1467 | DEF_WEAK(freezero); | 1467 | DEF_WEAK(freezero); |
| 1468 | 1468 | ||
| 1469 | static size_t | ||
| 1470 | osize(struct dir_info *argpool, void *p) | ||
| 1471 | { | ||
| 1472 | struct dir_info *pool; | ||
| 1473 | struct region_info *r; | ||
| 1474 | char *saved_function; | ||
| 1475 | size_t sz; | ||
| 1476 | int i; | ||
| 1477 | |||
| 1478 | pool = argpool; | ||
| 1479 | r = find(pool, p); | ||
| 1480 | if (r == NULL) { | ||
| 1481 | if (mopts.malloc_mt) { | ||
| 1482 | for (i = 0; i < _MALLOC_MUTEXES; i++) { | ||
| 1483 | if (i == argpool->mutex) | ||
| 1484 | continue; | ||
| 1485 | pool->active--; | ||
| 1486 | _MALLOC_UNLOCK(pool->mutex); | ||
| 1487 | pool = mopts.malloc_pool[i]; | ||
| 1488 | _MALLOC_LOCK(pool->mutex); | ||
| 1489 | pool->active++; | ||
| 1490 | r = find(pool, p); | ||
| 1491 | if (r != NULL) { | ||
| 1492 | saved_function = pool->func; | ||
| 1493 | pool->func = argpool->func; | ||
| 1494 | break; | ||
| 1495 | } | ||
| 1496 | } | ||
| 1497 | } | ||
| 1498 | if (r == NULL) | ||
| 1499 | wrterror(argpool, "bogus pointer (double free?) %p", p); | ||
| 1500 | } | ||
| 1501 | |||
| 1502 | REALSIZE(sz, r); | ||
| 1503 | if (sz > MALLOC_MAXCHUNK) { | ||
| 1504 | if (MALLOC_MOVE_COND(sz)) | ||
| 1505 | sz = MALLOC_PAGESIZE - ((char *)p - (char *)r->p); | ||
| 1506 | else | ||
| 1507 | sz = PAGEROUND(sz); | ||
| 1508 | } | ||
| 1509 | if (argpool != pool) { | ||
| 1510 | pool->active--; | ||
| 1511 | pool->func = saved_function; | ||
| 1512 | _MALLOC_UNLOCK(pool->mutex); | ||
| 1513 | _MALLOC_LOCK(argpool->mutex); | ||
| 1514 | argpool->active++; | ||
| 1515 | } | ||
| 1516 | return sz; | ||
| 1517 | } | ||
| 1518 | |||
| 1519 | size_t | ||
| 1520 | malloc_usable_size(void *ptr) | ||
| 1521 | { | ||
| 1522 | struct dir_info *d; | ||
| 1523 | int saved_errno = errno; | ||
| 1524 | size_t sz; | ||
| 1525 | |||
| 1526 | /* This is legal. */ | ||
| 1527 | if (ptr == NULL) | ||
| 1528 | return 0; | ||
| 1529 | |||
| 1530 | d = getpool(); | ||
| 1531 | if (d == NULL) | ||
| 1532 | wrterror(d, "malloc_usable_size() called before allocation"); | ||
| 1533 | _MALLOC_LOCK(d->mutex); | ||
| 1534 | d->func = "malloc_usable_size"; | ||
| 1535 | if (d->active++) { | ||
| 1536 | malloc_recurse(d); | ||
| 1537 | return 0; | ||
| 1538 | } | ||
| 1539 | sz = osize(d, ptr); | ||
| 1540 | d->active--; | ||
| 1541 | _MALLOC_UNLOCK(d->mutex); | ||
| 1542 | errno = saved_errno; | ||
| 1543 | return sz; | ||
| 1544 | } | ||
| 1545 | |||
| 1546 | static void * | 1469 | static void * |
| 1547 | orealloc(struct dir_info *argpool, void *p, size_t newsz, void *f) | 1470 | orealloc(struct dir_info *argpool, void *p, size_t newsz, void *f) |
| 1548 | { | 1471 | { |
