| 55 | } |
| 56 | |
| 57 | static bool testMemfdSupport() { |
| 58 | int fd = (int) syscall(__NR_memfd_create, "test_support_memfd", MFD_CLOEXEC | MFD_ALLOW_SEALING); |
| 59 | if (fd == -1) { |
| 60 | return false; |
| 61 | } |
| 62 | if (fcntl(fd, F_ADD_SEALS, F_SEAL_FUTURE_WRITE) == -1) { |
| 63 | close(fd); |
| 64 | return false; |
| 65 | } |
| 66 | close(fd); |
| 67 | return true; |
| 68 | } |
| 69 | |
| 70 | bool has_memfd_support() { |
| 71 | /* |