create bsd12 branch

Tools/scripts/parse-kdump.tcl

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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;