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--- dyld/dyld-852.2/src/dyldNew.cpp
+++ dyld/dyld-239.3/src/dyldNew.cpp
@@ -31,7 +31,7 @@
extern "C" void* __dso_handle;
-#include "dyld2.h"
+#include "dyld.h"
#include "dyldLibSystemInterface.h"
//
@@ -41,7 +41,7 @@
#if __LP64__
// room for about ~1000 initial dylibs
- #define DYLD_POOL_CHUNK_SIZE 200*1024
+ #define DYLD_POOL_CHUNK_SIZE 224*1024
#else
// room for about ~900 initial dylibs
#define DYLD_POOL_CHUNK_SIZE 150*1024
@@ -51,10 +51,7 @@
dyld_static_pool* previousPool;
uint8_t* current;
uint8_t* end;
-
- // libunwind, and probably others, need the pool to be 16-byte aligned as malloc guarantees that
- __attribute__((__aligned__(16)))
- uint8_t pool[1];
+ uint8_t pool[1];
};
// allocate initial pool independently of pool header to take less space on disk
@@ -65,19 +62,12 @@
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 {
- // keep allocations 16-byte aligned
- size = ((size + 15) & -16);
-
- 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;
@@ -85,7 +75,8 @@
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;
@@ -95,7 +86,7 @@
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;
@@ -111,8 +102,8 @@
// 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;
@@ -131,21 +122,13 @@
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);
}
}