Merge "make libacc run with execute stack protections enabled." into kraken

#include <cutils/hashmap.h>

#if defined(__i386__)

#include <sys/mman.h>

#endif

#if defined(__arm__)

#define DEFAULT_ARM_CODEGEN

        void release() {

            if (pProgramBase != 0) {

                free(pProgramBase);

                munmap(pProgramBase, mSize);

                pProgramBase = 0;

            }

        }

        virtual void init(int size) {

            release();

            mSize = size;

            pProgramBase = (char*) calloc(1, size);

            pProgramBase = (char*) mmap(NULL, size, 

                PROT_EXEC | PROT_READ | PROT_WRITE, 

                MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);

            ind = pProgramBase;

        }