stack32 66 tools/testing/selftests/x86/sysret_ss_attrs.c unsigned char *stack32 = mmap(NULL, 4096, PROT_READ | PROT_WRITE, stack32 69 tools/testing/selftests/x86/sysret_ss_attrs.c if (stack32 == MAP_FAILED) stack32 93 tools/testing/selftests/x86/sysret_ss_attrs.c call32_from_64(stack32 + 4088, test_ss); stack32 100 tools/testing/selftests/x86/sysret_ss_attrs.c munmap(stack32, 4096);