Various fixes and improvements to printpcs

Search for an addr2line that supports elf32-i386.  Don't print the
path of addr2line as a side-effect of which.  Don't uselessly pipe
"grep '^ '" to addr2line's stdin.  Enable as many pretty-printing and
otherwise helpful options as possible (this makes the output *much*
more pleasant on modern addr2lines).
This commit is contained in:
Austin Clements 2012-08-24 14:51:52 -04:00
parent 020acb4f10
commit 951b77f7ec

View file

@ -1,11 +1,14 @@
#!/bin/sh
# Decode the symbols from a panic stack trace on stdin
# Decode the symbols from a panic EIP list
if which addr2line
then
p="addr2line"
else
p="i386-jos-elf-addr2line"
# 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
echo grep '^ ' | $p -e kernel $*
done
# Enable as much pretty-printing as this addr2line can do
$p $($p -h | grep ' -[aipsf] ' | awk '{print $1}') -e kernel "$@"