script/ shell脚本 callstack如何dump

来源：互联网发布：chemist软件编辑：程序博客网时间：2024/05/19 22:27

将script加入到需要check的脚本中即可。例如需要check ins_all_mod.sh的callstack,将附档中script加入到其最后即可。

# FILE : sctrace.sh

# LICENSE : GPL v2.0 (only)
# PURPOSE : print the recursive callers' list for a script
# (sort of a process backtrace)
# USAGE : [in a script] source sctrace.sh
#
# TESTED ON :
# - Linux, x86 32-bit, Bash 3.2.39(1)-release

# REFERENCES:
# [1]: http://tldp.org/LDP/abs/html/internalvariables.html#PROCCID
# [2]: http://linux.die.net/man/5/proc
# [3]: http://linux.about.com/library/cmd/blcmdl1_tac.htm

#! /bin/bash

TRACE=""
CP=$$ # PID of the script itself [1]

while true # safe because "all starts with init..."
do
CMDLINE=$(cat /proc/$CP/cmdline)
PP=$(grep PPid /proc/$CP/status | awk '{ print $2; }') # [2]
TRACE="$TRACE [$CP]:$CMDLINE\n"
if [ "$CP" == "1" ]; then # we reach 'init' [PID 1] => backtrace end
break
fi
CP=$PP
done
echo "Backtrace of '$0'"
echo -en "$TRACE" | grep -n ":" # using tac to "print in reverse" [3]

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