Date: Sun, 20 Aug 2017 11:40:11 +0800 From: Nan Xiao <xiaonan830818@gmail.com> To: Ryan Stone <rysto32@gmail.com> Cc: "freebsd-dtrace@freebsd.org" <freebsd-dtrace@freebsd.org> Subject: Re: Does DTrace on FreeBSD support macro argument? Message-ID: <CA%2BMhoaPGSMZWFSSNDgKfxOu3Ad5c79Yfhq3r0C-X0Zzvi4XCtw@mail.gmail.com> In-Reply-To: <CAFMmRNzrDt5wiu5EJUENnSMGTn4n1ekVYQOqjW6WSCBg8n-pXA@mail.gmail.com> References: <CA%2BMhoaObzQQX%2B7xZuK5q_0EDVqvBJow6xJa9igyXfE3Aqi5hTQ@mail.gmail.com> <CAFMmRNzrDt5wiu5EJUENnSMGTn4n1ekVYQOqjW6WSCBg8n-pXA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Ryan,
You are right! Thanks very much for your help!
Best Regards
Nan Xiao
On Sun, Aug 20, 2017 at 4:45 AM, Ryan Stone <rysto32@gmail.com> wrote:
> If a script uses a positional argument like $1, the script will error
> out if you don't provide that parameter. Try instead supplying a pid
> on the command line:
>
> # ./tracewrite.d 123
>
> On Fri, Aug 18, 2017 at 3:27 AM, Nan Xiao <xiaonan830818@gmail.com> wrote:
>> Hi all,
>>
>> Greetings from me!
>>
>> I am trying the following simple script on FreeBSD 11:
>>
>> #!/usr/sbin/dtrace -s
>>
>> syscall::write:entry
>> /pid == $1/
>> {
>> }
>>
>> and get following error:
>>
>> # ./tracewrite.d
>> dtrace: failed to compile script ./tracewrite.d: line 4: macro
>> argument $1 is not defined
>>
>> From this link(http://docs.oracle.com/cd/E19253-01/817-6223/chp-script-3/index.html),
>> it seems FreeBSD doesn't support macro argument, right? If I want to
>> use it, what is the correct method?
>>
>> Thanks very much in advance!
>>
>> Best Regards
>> Nan Xiao
>> _______________________________________________
>> freebsd-dtrace@freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-dtrace
>> To unsubscribe, send any mail to "freebsd-dtrace-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CA%2BMhoaPGSMZWFSSNDgKfxOu3Ad5c79Yfhq3r0C-X0Zzvi4XCtw>