A Tool for Memory Management memory invisible kernel virtual memory user code %esp stack Linux/x86 Memory mapped region fors hared libraries process memory the“ brk"ptr Image runtime heap via malloc) uninitialized data(bss) initialized data data) program text ( text) forbidden 12 Figure 10.10 P70212 A Tool for Memory Management kernel virtual memory Memory mapped region forshared libraries runtime heap (via malloc) program text (.text) initialized data (.data) uninitialized data (.bss) stack forbidden %esp memory invisible to user code the “brk” ptr Linux/x86 process memory image Figure 10.10 P702