Can libunwind-ptrace walk through VDSO ?

[Abhijit Ray Chaudhury]

Hi,

I am using libunwind-ptrace example from https://github.com/daniel-thompson/libunwind-examples/tree/master . When I compile a program to sleep (while(1) sleep(1)) , the PC remains in VDSO.

I found libunwind unw_get_proc_name fails to get the symbol name . However attaching gdb I could get the symbol as __kernel_vsyscall .

Is there any way i could get the symbol name inside VDSO ?

Thanks in Advance,

-Abhijit