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--- dyld/dyld-635.2/src/dyldNew.cpp
+++ dyld/dyld-210.2.3/src/dyldNew.cpp
@@ -27,7 +27,6 @@
#include <stdint.h>
#include <string.h>
#include <mach/mach.h>
-#include <sys/mman.h>
extern "C" void* __dso_handle;
@@ -62,16 +61,12 @@
void* malloc(size_t size)
{
- if ( (dyld::gLibSystemHelpers != NULL) && dyld::gProcessInfo->libSystemInitialized ) {
+ if ( dyld::gLibSystemHelpers != NULL) {
void* p = dyld::gLibSystemHelpers->malloc(size);
//dyld::log("malloc(%lu) => %p from libSystem\n", size, p);
return p;
}
else {
- if ( size > DYLD_POOL_CHUNK_SIZE ) {
- dyld::log("dyld malloc overflow: size=%lu\n", size);
- dyld::halt("dyld malloc overflow\n");
- }
size = (size+sizeof(void*)-1) & (-sizeof(void*)); // pointer align
uint8_t* result = currentPool->current;
currentPool->current += size;
@@ -79,7 +74,8 @@
vm_address_t addr = 0;
kern_return_t r = vm_allocate(mach_task_self(), &addr, DYLD_POOL_CHUNK_SIZE, VM_FLAGS_ANYWHERE);
if ( r != KERN_SUCCESS ) {
- dyld::halt("out of address space for dyld memory pool\n");
+ dyld::log("out of address space for dyld memory pool\n");
+ exit(1);
}
dyld_static_pool* newPool = (dyld_static_pool*)addr;
newPool->previousPool = NULL;
@@ -89,7 +85,7 @@
currentPool = newPool;
if ( (currentPool->current + size) > currentPool->end ) {
dyld::log("dyld memory pool exhausted: size=%lu\n", size);
- dyld::halt("dyld memory pool exhausted\n");
+ exit(1);
}
result = currentPool->current;
currentPool->current += size;
@@ -105,8 +101,8 @@
// ignore any pointer within dyld (i.e. stuff from pool or static strings)
if ( (dyld::gLibSystemHelpers != NULL) && ((ptr < &__dso_handle) || (ptr >= &initialPoolContent[DYLD_POOL_CHUNK_SIZE])) ) {
// ignore stuff in any dynamically alloated dyld pools
- for (dyld_static_pool* p = currentPool; p != NULL; p = p->previousPool) {
- if ( (p->pool <= ptr) && (ptr < p->end) ) {
+ for (dyld_static_pool* p = initialPool.previousPool; p != NULL; p = p->previousPool) {
+ if ( (p->pool < ptr) && (ptr < p->end) ) {
// do nothing, pool entries can't be reclaimed
//dyld::log("free(%p) from dynamic pool\n", ptr);
return;
@@ -125,21 +121,13 @@
void* calloc(size_t count, size_t size)
{
- // Check for overflow of integer multiplication
- size_t total = count * size;
- if ( total/count != size ) {
- dyld::log("dyld calloc overflow: count=%zu, size=%zu\n", count, size);
- dyld::halt("dyld calloc overflow");
- }
if ( dyld::gLibSystemHelpers != NULL ) {
- void* result = dyld::gLibSystemHelpers->malloc(total);
- if ( result != NULL )
- bzero(result, total);
+ void* result = dyld::gLibSystemHelpers->malloc(size*count);
+ bzero(result, size*count);
return result;
}
else {
- // this allocates out of static buffer which is already zero filled
- return malloc(total);
+ return malloc(count*size);
}
}
@@ -159,26 +147,3 @@
int _malloc_lock = 0;
-// <rdar://problem/12857033> dyld calls this which uses libSystem.dylib's vm_allocate if available
-int vm_alloc(vm_address_t* addr, vm_size_t size, uint32_t flags)
-{
- if ( (dyld::gLibSystemHelpers != NULL) && (dyld::gLibSystemHelpers->version >= 12) ) {
- return dyld::gLibSystemHelpers->vm_alloc(mach_task_self(), addr, size, flags);
- }
- else {
- return ::vm_allocate(mach_task_self(), addr, size, flags);
- }
-}
-
-void* xmmap(void* addr, size_t len, int prot, int flags, int fd, off_t offset)
-{
- if ( (dyld::gLibSystemHelpers != NULL) && (dyld::gLibSystemHelpers->version >= 12) ) {
- return dyld::gLibSystemHelpers->mmap(addr, len, prot, flags, fd, offset);
- }
- else {
- return ::mmap(addr, len, prot, flags, fd, offset);
- }
-}
-
-
-