Thread's Stack Management in Dalvik VM

Thread Setup in Dalvik:
1. dvmThreadStartup() (vm/Thread.c)
   -called by dvmStartup()
   -This function will setup the thread list and the main
    thread's environment
   -important codes
    thread = allocThread(gDvm.stackSize);

2. allocThread(int interpStackSize)
   -Default stack size per stack: 3 * 4k pages
   -Important codes
    stackBottom = (u1*) malloc(interpStackSize);
     thread->interpStackSize = interpStackSize;
     thread->interpStackStart = stackBottom + interpStackSize;
     thread->interpStackEnd = stackBottom + 
     STACK_OVERFLOW_RESERVE;(768 bytes)
   -The initialized stack in a thread

   
Stack Push/Pop in Dalvik:
1. At first, dalvik vm main function will invoke   
    dvmCallMethodV() to interpret the java main
    method
2. dvmCallMethodV() will invoke callPrep to push the
    stack frame.
   -callPrep will invoke dvmPushInterpFrame() to push
    the related method frame on the thread's stack.
   -The Dalvik vm thread stack frame