void* _realloc(void* p, size_t size)
{
RegisterFree(p);
void* newP = real_realloc(p ,size);
RegisterAllocation(newP, size);
return newP;
}
static void * myth_malloc_wrapper_realloc(void *ptr,size_t size)
{
#ifdef MYTH_WRAP_MALLOC_RUNTIME
/* fall back to the bump allocator before wrapping completed */
if (!g_wrap_malloc_completed) {
/* leak old ptr */
void *new_ptr = sys_alloc_align(16, size);
memcpy(new_ptr, ptr, size);
return new_ptr;
}
/* no wrap. call the real one */
if (!g_wrap_malloc) {
return real_realloc(ptr, size);
}
#endif
if (size==0){free(ptr);return NULL;}
if (!ptr)return malloc(size);
uint64_t *rptr=(uint64_t*)ptr;rptr-=16/8;
MAY_BE_UNUSED size_t nrsize;
size_t orsize;
int oidx,nidx;
oidx=*rptr;
if (size<16)size=16;
nidx=MYTH_MALLOC_SIZE_TO_INDEX(size);
if (oidx==nidx)return ptr;
nrsize=MYTH_MALLOC_INDEX_TO_RSIZE(nidx);
orsize=MYTH_MALLOC_INDEX_TO_RSIZE(*rptr);
void *nptr = myth_malloc_wrapper_malloc(size);
if (!nptr)return NULL;
size_t btc=(size<orsize)?size:orsize;
memcpy(nptr,ptr,btc);
myth_malloc_wrapper_free(ptr);
return nptr;
}
void *
realloc(void *ptr, size_t size)
{
size_t usable;
void *p;
while (real_realloc == NULL){
if (!initializing){
initializing = 1;
__init();
initializing = 0;
}
sched_yield();
}
if (size == 0){
/* size=0,ptr is not NULL => free(ptr); */
free(ptr);
return NULL;
}
ptr = real_realloc(ptr, size + SIZEOF_F_RZ + SIZEOF_SIZE);
usable = malloc_usable_size(ptr);
/* corner cases */
/* ptr is NULL => malloc(size); */
p = ptr + size; /* end of user region */
memset(p, MAGIC_BYTE, SIZEOF_RZ(usable, size));
p += SIZEOF_RZ(usable,size); /* end of redzone */
*(size_t *)p = size;
OFC_DUMP(ptr, usable, size);
return ptr;
}
void * __terminal_hook_realloc(void *ptr, size_t size, const void *caller)
{
static void *(*real_realloc)(void*, size_t);
if (!real_realloc) real_realloc = fake_dlsym(RTLD_DEFAULT, "__real_realloc");
if (!real_realloc) real_realloc = fake_dlsym(RTLD_DEFAULT, "realloc"); // probably infinite regress...
if (!real_realloc) abort();
return real_realloc(ptr, size);
}
void *realloc(void *ptr, size_t size)
{
void *r;
_native_syscall_enter();
r = real_realloc(ptr, size);
_native_syscall_leave();
return r;
}
void* realloc(void *ptr, size_t size)
{
void *out_ptr;
START_CALL();
out_ptr = real_realloc(ptr, size);
if (ptr != out_ptr) {
remove_message_by_ptr(&alloc_msg_store, (uintptr_t)ptr);
END_CALL(out_ptr, size);
}
return out_ptr;
}
void *realloc(void *p, size_t s)
{
xbt_mheap_t mdp = __mmalloc_current_heap;
void *ret;
if (mdp) {
LOCK(mdp);
ret = mrealloc(mdp, p, s);
UNLOCK(mdp);
} else {
ret = real_realloc(p,s);
}
return ret;
}
void *realloc(void *ptr, size_t size)
{
void *p;
if(!real_realloc) {
if(!real_realloc) return NULL;
}
p = real_realloc(ptr, size);
if(memlog) {
LOCK;
fprintf(memlog, "realloc 0x%08x %u 0x%08x ", ptr, size, p);
print_stack();
fprintf(memlog, "\n");
UNLOCK;
}
return p;
}
static void *
track_realloc (malloc_zone_t * zone, void * oldp, size_t size) {
// Pointer to the allocated object
char * objp;
//
// Perform the allocation.
//
objp = (char*) real_realloc (zone, oldp, size);
//
// Record the allocation and return to the caller.
//
ExternalObjects.insert(objp, objp + size);
return objp;
}
void *
realloc(void *ptr, size_t size)
{
void *ret;
if (!inited) {
init();
}
if (size >= min_size && count >= max_count) {
errno = ENOMEM;
return NULL;
}
ret = real_realloc(ptr, size);
if (size >= min_size) {
count++;
}
return ret;
}
void *realloc(void *ptr, size_t size)
{
struct log_malloc_s *mem;
sig_atomic_t memuse = 0;
sig_atomic_t memruse = 0;
sig_atomic_t memchange = 0;
#ifdef HAVE_MALLOC_USABLE_SIZE
size_t rsize = 0;
sig_atomic_t memrchange = 0;
#endif
if(!DL_RESOLVE_CHECK(realloc))
return NULL;
mem = (ptr != NULL) ? MEM_HEAD(ptr) : NULL;
//FIXME: not handling foreign memory here (seems not needed)
if(mem && (mem->size != ~mem->cb))
{
assert(mem->size != ~mem->cb);
return NULL;
}
if((mem = real_realloc(mem, size + MEM_OFF)) != NULL)
{
memchange = (ptr) ? size - mem->size : size;
memuse = __sync_add_and_fetch(&g_ctx.mem_used, memchange);
#ifdef HAVE_MALLOC_USABLE_SIZE
rsize = malloc_usable_size(mem);
memrchange = (ptr) ? rsize - mem->rsize : rsize;
memruse = __sync_add_and_fetch(&g_ctx.mem_rused, memrchange);
#endif
}
#ifndef DISABLE_CALL_COUNTS
(void)__sync_fetch_and_add(&g_ctx.stat.realloc, 1);
g_ctx.stat.unrel_sum++;
#endif
if(!g_ctx.memlog_disabled)
{
int s;
char buf[LOG_BUFSIZE];
s = snprintf(buf, sizeof(buf), "+ realloc %d %p %p (%zu %zu) [%u:%u]\n",
memchange, ptr,
MEM_PTR(mem), (mem ? mem->size : 0), size,
memuse, memruse);
log_trace(buf, s, sizeof(buf), 1);
}
/* now we can update */
if(mem != NULL)
{
mem->size = size;
mem->cb = ~mem->size;
#ifdef HAVE_MALLOC_USABLE_SIZE
mem->rsize = rsize;
#endif
}
return MEM_PTR(mem);
}