Hi Mark, Thanks very much for your explanation!
Best Regards Nan Xiao On Fri, Jul 21, 2017 at 1:09 PM, Mark Johnston <[email protected]> wrote: > On Fri, Jul 21, 2017 at 12:56:28PM +0800, Nan Xiao wrote: > > Hi Matt & Mark, > > > > Firstly, thanks very much for your responses! > > > > I change my script as this: > > > > #!/usr/sbin/dtrace -x dynvarsize=64m -s > > > > dtrace:::BEGIN > > { > > printf("Hello FreeBSD!\n"); > > } > > > > It still generates errors: > > > > dtrace: failed to set -x dynvarsize: Invalid option name > > > > > > But dynvarsize should be a valid option name. > > It turns out that this won't work on FreeBSD: on a shebang line, the > tokens following the interpreter path are passed to the interpreter as a > single argument, so dtrace(1)'s option parser won't handle your example. > I think it follows that you have no choice but to specify the option > with a pragma. See the two block comments here: > https://svnweb.freebsd.org/base/head/sys/kern/imgact_ > shell.c?view=markup#l61 > _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-dtrace To unsubscribe, send any mail to "[email protected]"
