void *
calloc(size_t nmemb, size_t size)
{
size_t newNmemb,newSize,usable;
void *ptr, *p;
while(real_calloc == NULL){
if(!initializing){
initializing = 1;
__init();
initializing = 0;
}
sched_yield();
}
if ((size * nmemb) == 0){
/* corner cases */
/* When size=0 or nmemb=0, */
/* malloc() maybe return minimum block, */
newSize = SIZEOF_F_RZ + SIZEOF_SIZE;
newNmemb = 1;
}else{
newSize = size;
newNmemb = nmemb + ((SIZEOF_F_RZ + SIZEOF_SIZE - 1) / size + 1);
}
ptr = real_calloc(newNmemb ,newSize);
usable = malloc_usable_size(ptr);
p = ((char*)ptr + (size * nmemb)); /* end of user region */
memset(p, MAGIC_BYTE, SIZEOF_RZ(usable, size * nmemb));
p += SIZEOF_RZ(usable,size * nmemb); /* end of redzone */
*(size_t *)p = size * nmemb;
OFC_DUMP(ptr, usable, size * nmemb);
return ptr;
}
void* calloc(size_t nmemb, size_t size)
{
void *ptr;
START_CALL();
ptr = real_calloc(nmemb, size);
END_CALL(ptr, (nmemb * size));
return ptr;
}
void* calloc(size_t count, size_t size)
{
if (counter == current_counter++) {
return NULL;
}
static void* (*real_calloc)(size_t count, size_t size);
if (!real_calloc)
real_calloc = (void* (*)(size_t, size_t)) dlsym(RTLD_NEXT, "calloc");
return real_calloc(count, size);
}
void *calloc(size_t nmemb, size_t size)
{
/* XXX: This is a dirty hack to enable old dlsym versions to run.
* Throw it out when Ubuntu 12.04 support runs out (in 2017-04)! */
if (!real_calloc) {
return NULL;
}
void *r;
_native_syscall_enter();
r = real_calloc(nmemb, size);
_native_syscall_leave();
return r;
}
static void *
track_calloc (malloc_zone_t * zone, size_t num, size_t size) {
// Pointer to the allocated object
char * objp;
//
// Perform the allocation.
//
objp = (char*) real_calloc (zone, num, size);
//
// Record the allocation and return to the caller.
//
ExternalObjects.insert(objp, objp + num * size);
return objp;
}
void *calloc(size_t nmemb, size_t size)
{
void *p;
if(!real_calloc) {
if(!real_calloc) return NULL;
real_calloc = dlsym(RTLD_NEXT, "calloc");
return NULL;
}
p = real_calloc(nmemb, size);
if(memlog) {
LOCK;
fprintf(memlog, "calloc %u %u 0x%08x ", nmemb, size, p);
print_stack();
fprintf(memlog, "\n");
UNLOCK;
}
return p;
}
void *calloc(size_t nmemb, size_t size)
{
struct log_malloc_s *mem;
sig_atomic_t memuse;
sig_atomic_t memruse = 0;
size_t calloc_size = 0;
if(!DL_RESOLVE_CHECK(calloc))
return NULL;
calloc_size = (nmemb * size); //FIXME: what about check for overflow here ?
if((mem = real_calloc(1, calloc_size + MEM_OFF)) != NULL)
{
mem->size = calloc_size;
mem->cb = ~mem->size;
memuse = __sync_add_and_fetch(&g_ctx.mem_used, mem->size);
#ifdef HAVE_MALLOC_USABLE_SIZE
mem->rsize = malloc_usable_size(mem);
memruse = __sync_add_and_fetch(&g_ctx.mem_rused, mem->rsize);
#endif
}
#ifndef DISABLE_CALL_COUNTS
(void)__sync_fetch_and_add(&g_ctx.stat.calloc, 1);
g_ctx.stat.unrel_sum++;
#endif
if(!g_ctx.memlog_disabled)
{
int s;
char buf[LOG_BUFSIZE];
//getrusage(RUSAGE_SELF, &ruse);
s = snprintf(buf, sizeof(buf), "+ calloc %zu %p [%u:%u] (%zu %zu)\n",
nmemb * size, MEM_PTR(mem),
memuse, memruse,
nmemb, size);
log_trace(buf, s, sizeof(buf), 1);
}
return MEM_PTR(mem);
}
static void * myth_malloc_wrapper_calloc(size_t nmemb,size_t size)
{
#ifdef MYTH_WRAP_MALLOC_RUNTIME
/* fall back to the bump allocator before wrapping completed */
if (!g_wrap_malloc_completed) {
void *ptr = sys_alloc_align(16, nmemb * size);
memset(ptr, 0, nmemb * size);
return ptr;
}
/* no wrap. call the real one */
if (!g_wrap_malloc) {
return real_calloc(nmemb, size);
}
#endif
void *ptr;
ptr = myth_malloc_wrapper_malloc(nmemb*size);
if (!ptr)return NULL;
memset(ptr,0,nmemb*size);
return ptr;
}
void *
calloc(size_t number, size_t size)
{
void *ret;
if (!inited) {
init();
}
if (number >= min_size/size && count >= max_count) {
errno = ENOMEM;
return NULL;
}
ret = real_calloc(number, size);
if (size >= min_size) {
count++;
}
return ret;
}
void *calloc(size_t nmemb, size_t size)
{
/* dynamically load calloc when it's needed - this is necessary to
* support profiling as it uses calloc before startup runs */
if (!real_calloc) {
if (_native_in_calloc) {
/* XXX: This is a dirty hack to enable old dlsym versions to run.
* Throw it out when Ubuntu 12.04 support runs out (in 2017-04)! */
return NULL;
}
else {
_native_in_calloc = 1;
*(void **)(&real_calloc) = dlsym(RTLD_NEXT, "calloc");
_native_in_calloc = 0;
}
}
void *r;
_native_syscall_enter();
r = real_calloc(nmemb, size);
_native_syscall_leave();
return r;
}
// Replace calloc
void* calloc(size_t nmb,size_t sz)
{
static __thread int no_hook=0;
void *ret=NULL;
if(initializing == -1)
init();
if(initializing!=0){ // Avoid circular dependency between calloc and dlsym
ret=initMalloc(nmb*sz);
memset(ret,0,nmb*sz);
return ret;
}
ret = real_calloc(nmb,sz);
if(no_hook==0)
{
no_hook=1;
handle_alloc(nmb*sz,ret, "calloc");
no_hook=0;
}
return ret;
}