APPLIES TO:

Oracle Database - Enterprise Edition - Version 7.0.16.0 and later


Generic UNIX


Checked for relevance on 08-FEB-2013


PURPOSE

To identify the Unix command necessary to trace Unix system calls for a process.

SCOPE

This article is intended for use by any Unix user who needs to provide Oracle Support with O/S level trace information from a process.  The commands listed here may be not generally available within the operating system, and so you should consult your hardware/Operating System supplier to purchase/license use of these tools if they are not available.

DETAILS

How to Trace Unix System Calls for a Process

The following platforms support a trace utility that can be used to identify what a process is doing:


O/S Version



Trace Utility


Oracle/Sun Solaris, Unixware 7.0

truss, e.g.: 


$ truss -aefo <output file> <executable> 

$ truss -rall -wall -p <PID>

HP/UX 11


tusc, e.g.: 

$ tusc -afpo <output file> <pid> <executable> 

(See: ​​http://hpux.connect.org.uk/hppd/hpux/Sysadmin/tusc-8.0/​​)


IBM AIX 4.x

trace, e.g.:


Log on as root.

# trace -a -L 4000000 -T 2000000 -o ./trace.out;

# owsctl start admin

# trcstop

# trcrpt -O exec=on,pid=on trace.out > trcrpt.1


Or if present sctrace, e.g.:


$ sctrace -Amo <output file> <executable>

$ prpt -p <trace file> <executable>


Note:

'sctrace' has been discontinued by Veritas Software 

Corporation Inc. (formerly The Kernel Group Inc) 

as off Jan. 8, 2002.

IBM AIX 5L

truss, e.g.:


$ truss -aefo <output file> <executable>

Linux

strace, ktrace/kdump, ltrace e.g.:


$ strace -fo <output file> <executable>

SGI IRIX 6.x

par, e.g.:


$ par -siSSo <output file> <executable>

HP Tru64 Unix

trace or truss, e.g.:


$ trace -fo <output file> <executable>

$ truss -aefo <output file> <executable>

Apple Mac OS X

ktrace/kdump, e.g.:


$ script kdump.out

$ /usr/bin/ktrace -adi <command>

$ /usr/bin/kdump

$ exit

$ more kdump.out

Sequent Dynix/PTX

truss, e.g.:


$ truss -aefo <output file> <executable>

Data General DG/UX R4.20MU06

dg_trace, e.g.:


$ dg_strace -fxto <output> [<executable>] [-p <pid>]

 

 

REFERENCES

​


NOTE:1812.1  - TECH: Getting a Stack Trace from a CORE file on Unix



NOTE:314533.1  - Installing TUSC for HP-UX 11.00, 11.11,11.23,11.31(PA-RISC and Itanium) on the fly as a non-root user


NOTE:28588.1 - TECH: Using Truss / Trace on Unix