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Usermode/libc - Exit on heap corruption
[tpg/acess2.git]
/
Usermode
/
Libraries
/
libc.so_src
/
heap.c
diff --git
a/Usermode/Libraries/libc.so_src/heap.c
b/Usermode/Libraries/libc.so_src/heap.c
index
d529f65
..
1c0c7ac
100644
(file)
--- a/
Usermode/Libraries/libc.so_src/heap.c
+++ b/
Usermode/Libraries/libc.so_src/heap.c
@@
-94,13
+94,16
@@
EXPORT void *malloc(size_t bytes)
//Corrupt Heap
\r
Heap_Dump();
\r
_SysDebug("malloc: Corrupt Heap\n");
\r
//Corrupt Heap
\r
Heap_Dump();
\r
_SysDebug("malloc: Corrupt Heap\n");
\r
+ exit(128);
\r
return NULL;
\r
}
\r
curBlock = (heap_head*)((uintptr_t)curBlock + curBlock->size);
\r
}
\r
\r
if((uintptr_t)curBlock < (uintptr_t)_heap_start) {
\r
return NULL;
\r
}
\r
curBlock = (heap_head*)((uintptr_t)curBlock + curBlock->size);
\r
}
\r
\r
if((uintptr_t)curBlock < (uintptr_t)_heap_start) {
\r
+ Heap_Dump();
\r
_SysDebug("malloc: Heap underrun for some reason\n");
\r
_SysDebug("malloc: Heap underrun for some reason\n");
\r
+ exit(128);
\r
return NULL;
\r
}
\r
\r
return NULL;
\r
}
\r
\r
@@
-185,7
+188,7
@@
EXPORT void free(void *mem)
DEBUGS("free(%p) : 0x%x bytes", mem, head->size);
\r
\r
//Unify Right
\r
DEBUGS("free(%p) : 0x%x bytes", mem, head->size);
\r
\r
//Unify Right
\r
- if((
intptr_t)head + head->size < (
intptr_t)_heap_end)
\r
+ if((
uintptr_t)head + head->size < (u
intptr_t)_heap_end)
\r
{
\r
heap_head *nextHead = (heap_head*)((intptr_t)head + head->size);
\r
if(nextHead->magic == MAGIC_FREE) { //Is the next block free
\r
{
\r
heap_head *nextHead = (heap_head*)((intptr_t)head + head->size);
\r
if(nextHead->magic == MAGIC_FREE) { //Is the next block free
\r
@@
-194,7
+197,7
@@
EXPORT void free(void *mem)
}
\r
}
\r
//Unify Left
\r
}
\r
}
\r
//Unify Left
\r
- if((
intptr_t)head - sizeof(heap_foot) > (
intptr_t)_heap_start)
\r
+ if((
uintptr_t)head - sizeof(heap_foot) > (u
intptr_t)_heap_start)
\r
{
\r
heap_head *prevHead;
\r
heap_foot *prevFoot = (heap_foot *)((intptr_t)head - sizeof(heap_foot));
\r
{
\r
heap_head *prevHead;
\r
heap_foot *prevFoot = (heap_foot *)((intptr_t)head - sizeof(heap_foot));
\r
UCC
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