diff options
Diffstat (limited to 'libc/stdlib/malloc-930716/malloc.c')
| -rw-r--r-- | libc/stdlib/malloc-930716/malloc.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/libc/stdlib/malloc-930716/malloc.c b/libc/stdlib/malloc-930716/malloc.c index d1f61d18e..e97146184 100644 --- a/libc/stdlib/malloc-930716/malloc.c +++ b/libc/stdlib/malloc-930716/malloc.c @@ -36,10 +36,9 @@ static pthread_mutex_t malloclock = PTHREAD_MUTEX_INITIALIZER; static void * malloc_unlocked (size_t size); static void free_unlocked(void *ptr); -static void * __default_morecore_init(long size); /* How to really get more memory. */ -static void *(*__morecore)(long) = __default_morecore_init; +static void * __morecore(long size); /* Pointer to the base of the first block. */ static char *_heapbase; @@ -75,10 +74,10 @@ static void * align(size_t size) void *result; unsigned int adj; - result = (*__morecore)(size); + result = __morecore(size); adj = (unsigned int) ((char *) result - (char *) NULL) % BLOCKSIZE; if (adj != 0) { - (*__morecore)(adj = BLOCKSIZE - adj); + __morecore(adj = BLOCKSIZE - adj); result = (char *) result + adj; } return result; @@ -124,7 +123,7 @@ static void * morecore(size_t size) newsize *= 2; newinfo = align(newsize * sizeof (union info)); if (!newinfo) { - (*__morecore)(-size); + __morecore(-size); return NULL; } memset(newinfo, 0, newsize * sizeof (union info)); @@ -144,7 +143,7 @@ static void * morecore(size_t size) /* Note that morecore has to take a signed argument so that negative values can return memory to the system. */ -static void * __default_morecore_init(long size) +static void * __morecore(long size) { void *result; @@ -251,7 +250,7 @@ static void * malloc_unlocked (size_t size) block = _heapinfo[0].free.prev; lastblocks = _heapinfo[block].free.size; if (_heaplimit && block + lastblocks == _heaplimit - && (*__morecore)(0) == ADDRESS(block + lastblocks) + && __morecore(0) == ADDRESS(block + lastblocks) && morecore((blocks - lastblocks) * BLOCKSIZE)) { /* Note that morecore() can change the location of the final block if it moves the info table and the @@ -366,9 +365,9 @@ static void free_unlocked(void *ptr) /* Now see if we can return stuff to the system. */ blocks = _heapinfo[block].free.size; if (blocks >= FINAL_FREE_BLOCKS && block + blocks == _heaplimit - && (*__morecore)(0) == ADDRESS(block + blocks)) { + && __morecore(0) == ADDRESS(block + blocks)) { _heaplimit -= blocks; - (*__morecore)(-blocks * BLOCKSIZE); + __morecore(-blocks * BLOCKSIZE); _heapinfo[_heapinfo[block].free.prev].free.next = _heapinfo[block].free.next; _heapinfo[_heapinfo[block].free.next].free.prev |