ask for help

[Payphone LIOU]

Hi, All.
 
i am a newcomer to systemtap. i have a question about installing and running systemtap to ask . thanks everyone. :-)
 
(1) something about my machine 
2.6.17-1.2142_FC4
x86-64
gcc 4.0.2
glibc-2.3.6-3
glib2-2.6.4-1
glib-1.2.10-16
glibc-devel-2.3.6-3
glibc-common-2.3.6-3
glibc-2.3.6-3
glibc-profile-2.3.6-3
glib2-devel-2.6.4-1
glibc-kernheaders-2.4-9.1.94
glibc-devel-2.3.6-3
glibc-utils-2.3.6-3
glibc-headers-2.3.6-3
kernel-debuginfo-2.6.17-1.2142_FC4 
kernel-devel-2.6.17-1.2142_FC4 
sqlite-3.1.2-3 
sqlite-devel-3.1.2-3 
elfutils-0.108-1 
stap-0.3-1
 
(2) when i try to run an example from http://sourceware.org/systemtap/examples/top.stp
 
it failed and some error messages listed:
 
 
[root@paul systemtap]# 
[root@paul systemtap]# cat top.stp 
#!/usr/bin/env stap 
#
# This script continuously lists the top 20 systemcalls on the system
#
global syscalls
function print_top () {
        cnt=0
        log ("SYSCALL\t\t\t\tCOUNT")
        foreach ([name] in syscalls-) {
                printf("%-20s\t\t%5d\n",name, syscalls[name])
                if (cnt++ == 20)
                        break
        }
        printf("--------------------------------------\n")
        delete syscalls
}
probe kernel.function("sys_*") {
        syscalls[probefunc()]++
}
# print top syscalls every 5 seconds
probe timer.ms(5000) {
        print_top ()
}
[root@paul systemtap]# stap -v top.stp 
Created temporary directory "/tmp/stapD19eih"
parse error: expected ')'
        saw: operator '-' at top.stp:11:29
1 parse error(s).
Searched '/usr/share/systemtap/tapset/2.6.17-1.2142_FC4/*.stp', match count 0
Searched '/usr/share/systemtap/tapset/2.6.17/*.stp', match count 0
Searched '/usr/share/systemtap/tapset/2.6/*.stp', match count 0
Searched '/usr/share/systemtap/tapset/*.stp', match count 3
Pass 1: parsed user script and 3 library script(s).
Running /bin/rm -rf /tmp/stapD19eih
[root@paul systemtap]# 
 
 
could anyone tell me why? many thanks ! :-)

 				

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Payphone LIOU; 2008-06-25