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,'sans-serif';color:#365F91">$ 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 -aefo <output file> <executable> |
Linux |
strace,ktrace/kdump,ltrace e.g.: $ strace -fo <output file> <executable> |
SGI IRIX 6.x |
par,'sans-serif';color:#365F91">$ par -siSSo <output file> <executable> |
HPTru64 Unix |
trace or truss,'sans-serif';color:#365F91">$ trace -fo <output file> <executable> $ truss -aefo <output file> <executable> |
Apple Mac OS X |
ktrace/kdump,'sans-serif';color:#365F91">$ script kdump.out $ /usr/bin/ktrace -adi <command> $ /usr/bin/kdump $ exit $ more kdump.out |
Sequent Dynix/PTX |
$ truss -aefo <output file> <executable> |
Data General DG/UX R4.20MU06 |
dg_trace,'sans-serif';color:#365F91">$ dg_strace -fxto <output> [<executable>] [-p <pid>] |
ReferencesNOTE:1812.1 - TECH: Getting a Stack Trace from a CORE file on UnixNOTE: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 userNOTE:28588.1 - TECH: Using Truss / Trace on Unix
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