Kernel/x86 - Added backtrace to running program in thread dump

[tpg/acess2.git] / KernelLand / Kernel / heap.c

diff --git a/KernelLand/Kernel/heap.c b/KernelLand/Kernel/heap.c
index 9e29145..be8eeaf 100644 (file)
--- a/KernelLand/Kernel/heap.c
+++ b/KernelLand/Kernel/heap.c
@@ -153,8 +153,8 @@ void *Heap_Allocate(const char *File, int Line, size_t __Bytes)
        size_t  Bytes;
 
        if( __Bytes == 0 ) {
-               //return NULL;  // TODO: Return a known un-mapped range.
-               return INVLPTR;
+               return NULL;    // TODO: Return a known un-mapped range.
+//             return INVLPTR;
        }
        
        // Get required size
@@ -512,14 +512,19 @@ void Heap_Dump(void)
 {
        tHeapHead       *head, *badHead;
        tHeapFoot       *foot = NULL;
+       static int      in_heap_dump;
        
+       if( in_heap_dump )      return;
+
+       in_heap_dump = 1;
+
        head = gHeapStart;
        while( (Uint)head < (Uint)gHeapEnd )
        {               
                foot = (void*)( (Uint)head + head->Size - sizeof(tHeapFoot) );
                #if VERBOSE_DUMP
                Log_Log("Heap", "%p (0x%P): 0x%08x (%i) %4C",
-                       head, MM_GetPhysAddr((tVAddr)head), head->Size, head->ValidSize, &head->Magic);
+                       head, MM_GetPhysAddr(head), head->Size, head->ValidSize, &head->Magic);
                Log_Log("Heap", "%p %4C", foot->Head, &foot->Magic);
                if(head->File) {
                        Log_Log("Heap", "%sowned by %s:%i",
@@ -560,16 +565,20 @@ void Heap_Dump(void)
        }
        
        // If the heap is valid, ok!
-       if( (tVAddr)head == (tVAddr)gHeapEnd )
+       if( (tVAddr)head == (tVAddr)gHeapEnd ) {
+               in_heap_dump = 0;
                return ;
+       }
        
        // Check for a bad return
-       if( (tVAddr)head >= (tVAddr)gHeapEnd )
+       if( (tVAddr)head >= (tVAddr)gHeapEnd ) {
+               in_heap_dump = 0;
                return ;
+       }
 
        #if !VERBOSE_DUMP
        Log_Log("Heap", "%p (%P): 0x%08lx %i %4C",
-               head, MM_GetPhysAddr((Uint)head), head->Size, head->ValidSize, &head->Magic);
+               head, MM_GetPhysAddr(head), head->Size, head->ValidSize, &head->Magic);
        if(foot)
                Log_Log("Heap", "Foot %p = {Head:%p,Magic:%4C}", foot, foot->Head, &foot->Magic);
        if(head->File) {
@@ -589,7 +598,7 @@ void Heap_Dump(void)
        while( (tVAddr)head >= (tVAddr)badHead )
        {
                Log_Log("Heap", "%p (%P): 0x%08lx %i %4C",
-                       head, MM_GetPhysAddr((Uint)head), head->Size, head->ValidSize, &head->Magic);
+                       head, MM_GetPhysAddr(head), head->Size, head->ValidSize, &head->Magic);
                Log_Log("Heap", "%p %4C", foot->Head, &foot->Magic);
                if(head->File)
                        Log_Log("Heap", "%sowned by %s:%i",
@@ -669,10 +678,10 @@ void Heap_Stats(void)
                #if 1
                if( head->Magic == MAGIC_FREE )
                        Log_Debug("Heap", "%p (%P) - 0x%x free",
-                               head->Data, MM_GetPhysAddr((tVAddr)&head->Data), head->Size);
+                               head->Data, MM_GetPhysAddr(&head->Data), head->Size);
                else
                        Log_Debug("Heap", "%p (%P) - 0x%x (%i) Owned by %s:%i (%lli ms old)",
-                               head->Data, MM_GetPhysAddr((tVAddr)&head->Data), head->Size, head->ValidSize, head->File, head->Line,
+                               head->Data, MM_GetPhysAddr(&head->Data), head->Size, head->ValidSize, head->File, head->Line,
                                now() - head->AllocateTime
                                );
                #endif