On 03/31/2012 05:54 PM, Guy wrote: > Hello! > > This might be a trivial question: > I am debbuging my_program with gdb such as: > gdb my_program > GNU gdb (GDB) 7.4 > ... > Reading symbols from my_program > (gdb) run > ... > > And now I want to see what is happening: > strace -p<pid of my_program> > > and get an error: > attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted > > Why this?
Because ptrace API was badly designed from the start. Among other deficiencies, it does not allow multiple tracers. -- vda ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Strace-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/strace-devel
