From mboxrd@z Thu Jan  1 00:00:00 1970
Message-Id: <7ED1969C-3B1B-4FE4-8E2D-5B486E636E26@ar.aichi-u.ac.jp>
From: Kenji Arisawa <arisawa@ar.aichi-u.ac.jp>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
In-Reply-To: <db54ced81720f4ae901ffb396e8c9fb3@quanstro.net>
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Date: Tue, 11 Aug 2009 14:26:45 +0900
References: <db54ced81720f4ae901ffb396e8c9fb3@quanstro.net>
Subject: Re: [9fans] validateaddress
Topicbox-Message-UUID: 41526c04-ead5-11e9-9d60-3106f5b1d025

Thanks Erik,

ar% ps -a
...
none        1236297 48578:46   0:00      172K Running
validateaddress /mail/lib/validateaddress ar.aichi-u.ac.jp!hatbox
...
ar% ACID -l /sys/lib/acid/truss 1236297
/proc/1236297/text:386 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/386
/sys/lib/acid/truss
acid: truss()

no output, so I examined the status using ps

ar% ps -a
...
none        1236297 48578:46   0:00      172K Running
validateaddress /mail/lib/validateaddress ar.aichi-u.ac.jp!hatbox
...
bootes      2056324    0:00   0:00      236K Await    ACID /bin/ACID -
l /sys/lib/acid/truss 1236297
bootes      2056328    0:00   0:00     1472K Stopwait acid -l /sys/lib/
acid/truss 1236297
bootes      2056329    0:00   0:00      188K Pread    ps -a

where ACID does
	chmod 660 /proc/1236297/mem
	acid -l /sys/lib/acid/truss 1236297

Thanks
Kenji Arisawa

On 2009/08/11, at 13:07, erik quanstrom wrote:

> On Mon Aug 10 23:59:56 EDT 2009, arisawa@ar.aichi-u.ac.jp wrote:
>> Thanks Erik.
>>
>> However I don't know how to truss running process.
>>
>> Kenji Arisawa
>>
>
> for example:
>
> ; cat > truss.c
> #include <u.h>
> #include <libc.h>
>
> void
> main(void)
> {
> 	for(;;)
> 		sleep(10*1000);
> }
> ; 8c -FVTw truss.c && 8l -o truss truss.8
> ; truss&
> ; acid -l/sys/lib/acid/truss $apid
> /proc/116801/text:386 plan 9 executable
> /sys/lib/acid/port
> /sys/lib/acid/386
> /sys/lib/acid/truss
> acid: truss()
> sleep(10000)
> 	return value: 0
>
> - erik
>