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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:35:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:35:11 +0000 |
commit | da76459dc21b5af2449af2d36eb95226cb186ce2 (patch) | |
tree | 542ebb3c1e796fac2742495b8437331727bbbfa0 /dev/trace/trace.awk | |
parent | Initial commit. (diff) | |
download | haproxy-da76459dc21b5af2449af2d36eb95226cb186ce2.tar.xz haproxy-da76459dc21b5af2449af2d36eb95226cb186ce2.zip |
Adding upstream version 2.6.12.upstream/2.6.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rwxr-xr-x | dev/trace/trace.awk | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/dev/trace/trace.awk b/dev/trace/trace.awk new file mode 100755 index 0000000..7b3b131 --- /dev/null +++ b/dev/trace/trace.awk @@ -0,0 +1,78 @@ +#!/bin/sh +# +# trace.awk - Fast trace symbol resolver - w@1wt.eu - 2012/05/25 +# +# Principle: this program launches reads pointers from a trace file and if not +# found in its cache, it passes them over a pipe to addr2line which is forked +# in a coprocess, then stores the result in the cache. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version +# 2 of the License, or (at your option) any later version. +# +# usage: $0 exec_file < trace.out +# + +if [ $# -lt 1 ]; then + echo "Usage: ${0##*/} exec_file < trace.out" + echo "Example: ${0##*/} ./haproxy < trace.out" + echo "Example: HAPROXY_TRACE=/dev/stdout ./haproxy -f cfg | ${0##*/} ./haproxy" + exit 1 +fi + +if [ ! -s "$1" ]; then + echo "$1 is not a valid executable file" + exit 1 +fi + +exec awk -v prog="$1" \ +' +BEGIN { + if (cmd == "") + cmd=ENVIRON["ADDR2LINE"]; + if (cmd == "") + cmd="addr2line"; + + if (prog == "") + prog=ENVIRON["PROG"]; + + cmd=cmd " -f -s -e " prog; + + for (i = 1; i < 100; i++) { + indents[">",i] = indents[">",i-1] "->" + indents[">",i-1] = indents[">",i-1] " " + indents["<",i] = indents["<",i-1] " " + indents["<",i-1] = indents["<",i-1] " " + indents[" ",i] = indents[" ",i-1] "##" + indents[" ",i-1] = indents[" ",i-1] " " + } +} + +function getptr(ptr) +{ + loc=locs[ptr]; + name=names[ptr]; + if (loc == "" || name == "") { + print ptr |& cmd; + cmd |& getline name; + cmd |& getline loc; + names[ptr]=name + locs[ptr]=loc + } +} + +{ + # input format: <timestamp> <level> <caller> <dir> <callee> [<ret>|<args>...] + if ($3 == "#") { # this is a trace comment + printf "%s %s ", $1, indents[" ",$2] + $1=""; $2=""; $3="" + print substr($0,4) + next + } + getptr($3); caller_loc=loc; caller_name=name + getptr($5); callee_loc=loc; callee_name=name + printf "%s %s %s %s %s(%s) [%s:%s] %s [%s:%s]\n", + $1, indents[$4,$2], caller_name, $4, callee_name, $6, caller_loc, $3, $4, callee_loc, $5 +} +' |