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#!/usr/local/bin/tclsh8.2
# Copyright (C) 2002 Daniel O'Connor.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the project nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Usage
#
# Ktrace the process(es) you're interested in like so ->
#
# ktrace -ditcn -f ~/install.ktr make install
#
# Now run kdump over this file and pipe to parse-kdump.tcl
# kdump -m1 -f ~/install.ktr | parse-kdump.tcl
#
proc main {} {
set fh stdin;
set state "CALL";
set interested "";
set cwd [pwd];
set namea "";
while {![eof $fh]} {
gets $fh line;
if {$line == ""} {
continue;
}
if {[scan $line "%d %s %s %\[^\n\]" pid name type rest] != 4} {
if {$state != "GIO"} {
puts stderr "Unable to parse '$line'";
exit 1;
} else {
#puts stderr "Got IO";
continue;
}
}
#puts stderr "Pid - $pid, Name - $name, Type - $type, Rest - $rest";
switch -- $type {
"CALL" -
"RET" -
"GIO" -
"NAMI" {
}
default {
puts stderr "Unknown type $type"
exit 1;
}
}
#puts "State is $state";
switch -- $type {
"CALL" {
set namea "";
if {$state != "RET" && $state != "CALL" && $state != "NAMI"} {
puts stderr "Invalid state transition from $state to CALL";
exit 1;
} else {
set state $type;
}
set cargs "";
set res [scan $rest "%\[^(\](%\[^)\]" callname cargs];
if {$res != 1 && $res != 2} {
puts stderr "Couldn't derive syscall name from $rest";
exit 1;
}
if {$callname == "open"} {
if {[scan $cargs "%\[^,\],%\[^,\],%s" fptr flags mode] != 3} {
puts stderr "Couldn't parse open args from $cargs";
exit 1;
}
#puts stderr "Open with $flags, mode $mode";
set interested [list $callname $flags $mode];
} elseif {$callname == "chdir"} {
set interested [list $callname];
} elseif {$callname == "rename"} {
set interested [list $callname];
} elseif {$callname == "unlink"} {
set interested [list $callname];
}
}
"RET" {
set namea "";
if {$state != "CALL" && $state != "GIO" && $state != "NAMI" && $state != "RET"} {
puts "Invalid state transition from $state to RET";
exit 1;
} else {
set state $type;
}
set interested "";
}
"NAMI" {
if {$state != "CALL" && $state != "NAMI"} {
puts "Invalid state transition from $state to NAMI";
exit 1;
} else {
set state $type;
}
if {$interested != ""} {
if {[scan $rest "\"%\[^\"\]\"" fname] != 1} {
puts stderr "Unable to derive filename from $rest";
exit 1;
}
switch -- [lindex $interested 0] {
"open" {
set flags [expr [lindex $interested 1]];
set mode [expr [lindex $interested 2]];
#puts stderr "Mode = $mode, Flags = $flags";
if {[file pathtype $fname] == "relative"} {
set fname [file join $cwd $fname];
}
if {[expr $flags & 0x02] || [expr $flags & 0x200]} {
#puts "Got an open for writing on $fname";
#puts "$name $fname";
puts "+$fname";
}
}
"rename" {
if {$namea != ""} {
#puts "rename from $namea to $fname";
puts "-$namea";
puts "+$fname";
} else {
set namea $fname;
#puts "namea = $namea";
}
}
"chdir" {
set cwd "$fname";
#puts "Changed working directory to $cwd";
}
"unlink" {
puts "-$fname";
}
default {
puts "Got a [lindex $interested 0] $fname";
}
}
}
}
"GIO" {
set namea "";
if {$state != "CALL" && $state != "GIO"} {
puts "Invalid state transition from $state to GIO";
exit 1;
} else {
set state $type;
}
}
default {
puts stderr "WTF, Invalid state?"
exit 1;
}
}
}
}
main;
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