Displaying 1 result from an estimated 1 matches for "dumpfifo".
2006 Jul 31
5
use tracemem to dump content in function read/write
Hi Expert
I want to use dtrace to monitor the content change of one file. I made following scripts,
#!/usr/sbin/dtrace -s
inline int MYPID = $1;
syscall::write:entry
/pid == MYPID/
{
tracemem(arg1, arg2);
printf("\n");
}
It always has an following error
bash-3.00$ sudo dumpFIFO.dtrace 3836
dtrace: failed to compile script ./dumpFIFO.dtrace: line 19: tracemem( ) argument #2 must be a non-zero positive integral constant expression
When I change it to
tracemem(arg1, 1); /*1 is a small test number*/
It always has following error.
bash-3.00$ sudo dumpFIFO.dtrace 3836
dtrac...