1libc {
2  GLIBC_2.19 {
3    __longjmp_chk;
4    getcontext;
5  }
6  GLIBC_PRIVATE {
7    __vdso_clock_gettime;
8    __vdso_clock_getres;
9  }
10}
11
12libpthread {
13  GLIBC_2.19 {
14    __libpthread_version_placeholder;
15  }
16}
17