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Full Discussion: Specify the inode of a file?
Operating Systems Solaris Specify the inode of a file? Post 302894515 by jlliagre on Tuesday 25th of March 2014 09:23:31 PM
Old 03-25-2014
Quote:
Originally Posted by unblockable
I changed the filename to "passwd2" because I wasn't sure what impact this would have on my /etc/passwd file.
The dtrace script has hopefully no impact in the target file.
Quote:
Was I supposed to run fake_inode.d from within /etc?
From anywhere you like.
Quote:
I created fake_inode.d and passwd2 inside /data, and ran the script from there. It has been saying this for a while:
Code:
[root@sol10: /data]# dtrace -w -s fake_inode.d
dtrace: script 'fake_inode.d' matched 6 probes
dtrace: allowing destructive actions

This is the expected output. You should leave the script running for the inode renumbering hack to persist.
As Bartus11 already stated, just use another terminal to experiment with you program expecting a large inode number.
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DTRACE(1)						      General Commands Manual							 DTRACE(1)

NAME
dtrace - Dtrace compatibile user application static probe generation tool. SYNOPSIS
dtrace -s file [OPTIONS] DESCRIPTION
The dtrace command converts probe descriptions defined in file.d into a probe header file via the -h option or a probe description file via the -G option. OPTIONS
-h generate a systemtap header file. -G generate a systemtap probe definition object file. -o file is the name of the output file. If the -G option is given then the output file will be called file.o; if the -h option is given then the output file will be called file.h. -C run the cpp preprocessor on the input file when the -h option is given. -I file give this include path to cpp when the -C option is given. -k keep temporary files, for example the C language source for the -G option. --types generate probe argument typedef information when the -h option is given. EXAMPLES
Systemtap is source compatible with dtrace user application static probe support. Given a file test.d containing: provider sdt_probes { probe test_0 (int type); probe test_1 (struct astruct node); }; struct astruct {int a; int b;}; Then the command "dtrace -s test.d -G" will create the probe definition file test.o and the command "dtrace -s test.d -h" will create the probe header file test.h Subsequently the application can define probes using #include "test.h" ... struct astruct s; ... SDT_PROBES_TEST_0(value); ... SDT_PROBES_TEST_1(s); The application is linked with "test.o" when it is built. SEE ALSO
stap(1) stappaths(7) DTRACE(1)
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