* Andy Lutomirski <luto@xxxxxxxxxx> wrote: > tools/testing/selftests/x86/Makefile | 2 +- > tools/testing/selftests/x86/test_vsyscall.c | 500 ++++++++++++++++++++++++++++ > 2 files changed, 501 insertions(+), 1 deletion(-) > create mode 100644 tools/testing/selftests/x86/test_vsyscall.c Hm, it doesn't even build here, on Ubuntu latest (Artful): triton:~/tip/tools/testing/selftests/x86> make test_vsyscall gcc -O2 -g -std=gnu99 -pthread -Wall -no-pie test_vsyscall.c -o test_vsyscall /tmp/ccKyelfb.o: In function `init_vdso': /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:68: undefined reference to `dlopen' /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:76: undefined reference to `dlsym' /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:80: undefined reference to `dlsym' /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:84: undefined reference to `dlsym' /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:88: undefined reference to `dlsym' /home/mingo/tip/tools/testing/selftests/x86/test_vsyscall.c:70: undefined reference to `dlopen' collect2: error: ld returned 1 exit status <builtin>: recipe for target 'test_vsyscall' failed make: *** [test_vsyscall] Error 1 Thanks, Ingo