xv6-cs450/printpcs

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#!/bin/sh
# Decode the symbols from a panic EIP list
# Find a working addr2line
for p in i386-jos-elf-addr2line addr2line; do
if which $p 2>&1 >/dev/null && \
$p -h 2>&1 | grep -q '\belf32-i386\b'; then
break
fi
done
# Enable as much pretty-printing as this addr2line can do
$p $($p -h | grep ' -[aipsf] ' | awk '{print $1}') -e kernel "$@"