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f5e0d1f9fd
The output is hard to read when the full path to the sources files is emitted, let's strip it.
79 lines
2.0 KiB
Awk
Executable File
79 lines
2.0 KiB
Awk
Executable File
#!/bin/sh
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#
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# trace.awk - Fast trace symbol resolver - w@1wt.eu - 2012/05/25
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#
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# Principle: this program launches reads pointers from a trace file and if not
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# found in its cache, it passes them over a pipe to addr2line which is forked
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# in a coprocess, then stores the result in the cache.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version
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# 2 of the License, or (at your option) any later version.
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#
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# usage: $0 exec_file < trace.out
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#
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if [ $# -lt 1 ]; then
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echo "Usage: ${0##*/} exec_file < trace.out"
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echo "Example: ${0##*/} ./haproxy < trace.out"
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echo "Example: HAPROXY_TRACE=/dev/stdout ./haproxy -f cfg | ${0##*/} ./haproxy"
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exit 1
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fi
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if [ ! -s "$1" ]; then
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echo "$1 is not a valid executable file"
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exit 1
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fi
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exec awk -v prog="$1" \
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'
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BEGIN {
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if (cmd == "")
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cmd=ENVIRON["ADDR2LINE"];
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if (cmd == "")
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cmd="addr2line";
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if (prog == "")
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prog=ENVIRON["PROG"];
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cmd=cmd " -f -s -e " prog;
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for (i = 1; i < 100; i++) {
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indents[">",i] = indents[">",i-1] "->"
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indents[">",i-1] = indents[">",i-1] " "
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indents["<",i] = indents["<",i-1] " "
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indents["<",i-1] = indents["<",i-1] " "
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indents[" ",i] = indents[" ",i-1] "##"
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indents[" ",i-1] = indents[" ",i-1] " "
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}
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}
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function getptr(ptr)
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{
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loc=locs[ptr];
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name=names[ptr];
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if (loc == "" || name == "") {
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print ptr |& cmd;
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cmd |& getline name;
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cmd |& getline loc;
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names[ptr]=name
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locs[ptr]=loc
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}
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}
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{
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# input format: <timestamp> <level> <caller> <dir> <callee> [<ret>|<args>...]
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if ($3 == "#") { # this is a trace comment
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printf "%s %s ", $1, indents[" ",$2]
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$1=""; $2=""; $3=""
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print substr($0,4)
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next
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}
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getptr($3); caller_loc=loc; caller_name=name
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getptr($5); callee_loc=loc; callee_name=name
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printf "%s %s %s %s %s(%s) [%s:%s] %s [%s:%s]\n",
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$1, indents[$4,$2], caller_name, $4, callee_name, $6, caller_loc, $3, $4, callee_loc, $5
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}
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'
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