STACKSIZE
munmap(thread->ctx.uc_stack.ss_sp, STACKSIZE);
stack = mmap(NULL, STACKSIZE, PROT_READ | PROT_WRITE,
stack_size = STACKSIZE;
void *stack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE,
stack = (char *)stack + STACKSIZE;
stack = (char *)stack - STACKSIZE;
ATF_REQUIRE_ERRNO(errno, munmap(stack, STACKSIZE) != -1);
char stack[STACKSIZE];
ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0);
ATF_REQUIRE(pthread_attr_setguardsize(&attr, STACKSIZE * (i + 2)) == 0);
ATF_REQUIRE(stacksize == STACKSIZE * (j + 1));
ATF_REQUIRE(guardsize == STACKSIZE * (j + 2));
char stack[STACKSIZE];