55 lines
3.1 KiB
Plaintext
55 lines
3.1 KiB
Plaintext
The following are examples of sh_syscalls.d.
|
|
|
|
This is a simple script to count Ruby methods and system calls. Here we trace
|
|
an example program - Code/Ruby/func_abc.rb
|
|
|
|
# rb_syscalls.d -c ./func_abc.rb
|
|
Tracing... Hit Ctrl-C to end.
|
|
Function A
|
|
Function B
|
|
Function C
|
|
|
|
Calls for PID 146493,
|
|
|
|
FILE TYPE NAME COUNT
|
|
func_abc.rb method Object::func_a 1
|
|
func_abc.rb method Object::func_b 1
|
|
func_abc.rb method Object::func_c 1
|
|
func_abc.rb syscall getpid 1
|
|
func_abc.rb syscall getrlimit 1
|
|
func_abc.rb syscall getrlimit64 1
|
|
func_abc.rb syscall mmap 1
|
|
func_abc.rb syscall munmap 1
|
|
func_abc.rb syscall rexit 1
|
|
func_abc.rb syscall schedctl 1
|
|
func_abc.rb syscall sigpending 1
|
|
func_abc.rb syscall sysconfig 1
|
|
func_abc.rb syscall sysi86 1
|
|
func_abc.rb syscall write 1
|
|
func_abc.rb syscall llseek 2
|
|
func_abc.rb syscall read 2
|
|
func_abc.rb syscall setcontext 2
|
|
func_abc.rb method IO::write 3
|
|
func_abc.rb method Module::method_added 3
|
|
func_abc.rb method Object::print 3
|
|
func_abc.rb method Object::sleep 3
|
|
func_abc.rb syscall fstat64 3
|
|
func_abc.rb syscall getgid 3
|
|
func_abc.rb syscall getuid 3
|
|
func_abc.rb syscall ioctl 3
|
|
func_abc.rb syscall pollsys 3
|
|
func_abc.rb syscall close 4
|
|
func_abc.rb syscall lwp_sigmask 4
|
|
func_abc.rb syscall open64 4
|
|
func_abc.rb syscall gtime 6
|
|
func_abc.rb syscall sigaction 12
|
|
func_abc.rb syscall brk 56
|
|
|
|
While tracing, three user-defined functions were called - func_a, func_b and
|
|
func_c. There were 3 instances of the IO::write method being called. There
|
|
were also many system calls made, including 56 brk()'s, and 12 sigaction()'s.
|
|
|
|
This script can provide an insight to how a Ruby program is interacting
|
|
with the system, by providing methods and system calls in the same output.
|
|
|