mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-09-11 16:15:07 -04:00
51 lines
2.8 KiB
Plaintext
51 lines
2.8 KiB
Plaintext
The following are examples of pl_syscalls.d.
|
|
|
|
This is a simple script to count executed Perl subroutines and system calls.
|
|
Here it traces an example program, Code/Perl/func_abc.pl.
|
|
|
|
# pl_syscalls.d -c ./func_abc.pl
|
|
Function A
|
|
Tracing... Hit Ctrl-C to end.
|
|
Function B
|
|
Function C
|
|
|
|
Calls for PID 305173,
|
|
|
|
FILE TYPE NAME COUNT
|
|
func_abc.pl sub func_a 1
|
|
func_abc.pl sub func_b 1
|
|
func_abc.pl sub func_c 1
|
|
func_abc.pl syscall fcntl 1
|
|
func_abc.pl syscall getrlimit 1
|
|
func_abc.pl syscall mmap 1
|
|
func_abc.pl syscall munmap 1
|
|
func_abc.pl syscall rexit 1
|
|
func_abc.pl syscall schedctl 1
|
|
func_abc.pl syscall sigpending 1
|
|
func_abc.pl syscall sysi86 1
|
|
func_abc.pl syscall getgid 2
|
|
func_abc.pl syscall getpid 2
|
|
func_abc.pl syscall getuid 2
|
|
func_abc.pl syscall sigaction 2
|
|
func_abc.pl syscall sysconfig 2
|
|
func_abc.pl syscall fstat64 3
|
|
func_abc.pl syscall nanosleep 3
|
|
func_abc.pl syscall read 3
|
|
func_abc.pl syscall setcontext 3
|
|
func_abc.pl syscall write 3
|
|
func_abc.pl syscall close 4
|
|
func_abc.pl syscall ioctl 4
|
|
func_abc.pl syscall open64 4
|
|
func_abc.pl syscall llseek 5
|
|
func_abc.pl syscall gtime 7
|
|
func_abc.pl syscall brk 20
|
|
|
|
While tracing, three subroutines were called - func_a(), func_b() and func_c().
|
|
There were numerous system calls made, including 20 brk()'s, 7 gtime()'s
|
|
and 5 llseek()'s.
|
|
|
|
This script can provide an insight to how an application is interacting
|
|
with the system, by providing both application subroutine calls and
|
|
system calls in the same output.
|
|
|