gcc/contrib/warn_summary

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#!/bin/sh
# This script parses the output of a gcc bootstrap when using warning
# flags and determines various statistics.
#
# By Kaveh Ghazi (ghazi@caip.rutgers.edu) 12/13/97.
# This function displays all warnings from stage3 of the bootstrap.
stage3warns()
{
# Some awks choke on long lines so grep them out.
grep -v libf2c.a $1 | \
$AWK '/ warning: /{if(t==1)print} ; /stage2/{if(t==0)t=1}'
}
# Find a good awk.
if test -z "$AWK" ; then
for AWK in gawk nawk awk ; do
if type $AWK 2>&1 | grep 'not found' > /dev/null 2>&1 ; then
:
else
break
fi
done
fi
for file in "$@" ; do
count=`stage3warns $file | wc -l`
echo There are $count warnings in stage3 of this bootstrap.
echo
echo Number of warnings per file:
stage3warns $file | $AWK -F: '{print$1}' | sort | uniq -c | sort -nr
echo
echo Number of warning types:
stage3warns $file | sed 's/.*warning: //;
s/`\(int\)'"'"'/"\1"/g;
s/`\(char\)'"'"'/"\1"/g;
s/`\(inline\)'"'"'/"\1"/g;
s/`\(else\)'"'"'/"\1"/g;
s/`\(return\)'"'"'/"\1"/g;
s/`\(static\)'"'"'/"\1"/g;
s/`\(extern\)'"'"'/"\1"/g;
s/`\(longjmp\)'"'"' or `\(vfork\)'"'"'/"\1" or "\2"/g;
s/`'"[^']*'/"'`???'"'/g;"'
s/.*format, .* arg (arg [0-9]*)/??? format, ??? arg (arg ???)/;
s/(arg [0-9]*)/(arg ???)/;
s/"\([^"]*\)"/`\1'"'"'/g' | \
sort | uniq -c | sort -nr
done