040000 tree ccc73416c2c983b6c871df523c813864c2a39126	asm
100644 blob e5dccc05023febf06cfaef47240b0ad54516b924	stack.cc
100644 blob 8d9907a0d93839cd9f5dc2eb8852b130a7ee898f	stack.h
100644 blob d3335a4f4f1502378e14e45fa3196049d0759e97	stack_unittest.cc