# This script parses the output of a gcc bootstrap when using warning
# flags and determines various statistics.
#
-# usage: warn_summary [-llf] [-s stage] [-nosub|-ch|-cp|-f|-java]
+# usage: warn_summary [-llf] [-s stage] [-nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc]
# [-pass|-wpass] [file(s)]
#
# -llf
-# Filter out long lines from the bootstap output before any other
+# Filter out long lines from the bootstrap output before any other
# action. This is useful for systems with broken awks/greps which choke
# on long lines. It is not done by default as it sometimes slows things
# down.
#
# -nosub
# Only show warnings from the gcc top level directory.
-# -ch|-cp|-f|-java
-# Only show warnings from the specified language subdirectory.
-# These flags assume the output contains "Entering/Leaving" messages from
-# gnu make. They override each other so only the last one takes effect.
+# -ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc
+# Only show warnings from the specified gcc subdirectory.
+# These override each other so only the last one passed takes effect.
#
# -pass
# Pass through the bootstrap output after filtering stage and subdir
longLineFilter()
{
if test -z "$llf" ; then
- cat $1
+ cat
else
- sed 's/^\(...............................................................................................................................................................................................................................................................\).*/\1/' $1
+ sed 's/^\(...............................................................................................................................................................................................................................................................\).*/\1/'
fi
}
# through a particular subdirectory set of warnings.
subdirectoryFilter()
{
- longLineFilter $1 | (
+ longLineFilter | (
if test -z "$filter" ; then
# Pass through all lines.
cat
else
if test "$filter" = nosub ; then
# Omit all subdirectories.
- $AWK 'BEGIN{t=1} ; /Entering directory.*\/gcc\/[a-z]/{t--} ; /Leaving directory.*\/gcc\/[a-z]/{t++} ; {if(t==1)print}'
+ egrep -v '/gcc/(ch|cp|f|fortran|java|ada|intl|fixinc)/'
else
# Pass through only subdir $filter.
- $AWK "BEGIN {t=-1} ; /^cd $filter; make/{t=0} ; /Entering directory .*\/gcc\/$filter/{t++} ; /Leaving directory .*\/gcc\/$filter/{t--} ; {if(t==1)print}"
+ grep "/gcc/$filter/"
fi
fi )
}
$AWK "/^Bootstrapping the compiler|^Building the C and C\+\+ compiler/{t=1} ; /stage$stageN/{t=0} ; {if(t==1)print}"
else
stageNminus1=`expr $stageN - 1`
- $AWK "/stage$stageNminus1/{t=1} ; /stage$stageN/{t=0} ; {if(t==1)print}"
+ $AWK "/stage${stageNminus1}\//{t=1} ; /stage$stageN/{t=0} ; {if(t==1)print}"
fi
fi
}
# This function displays lines containing warnings.
warningFilter()
{
- grep ' warning: ' $1
+ grep ' warning: '
}
# This function replaces `xxx' with `???', where xxx is usually some
s/`\(const\)'"'"'/"\1"/g;
s/`\(noreturn\)'"'"'/"\1"/g;
s/`\(longjmp\)'"'"' or `\(vfork\)'"'"'/"\1" or "\2"/g;
- s/`'"[^']*'/"'`???'"'/g;"'
+ s/'"[\`'][^']*'/"'"???"/g;
s/.*format, .* arg (arg [0-9][0-9]*)/??? format, ??? arg (arg ???)/;
s/\([( ]\)arg [0-9][0-9]*\([) ]\)/\1arg ???\2/;
s/"\([^"]*\)"/`\1'"'"'/g'
}
+# This function strips out relative pathnames for source files printed
+# by the warningFilter function. This is done so that as the snapshot
+# directory name changes every week, the output of this program can be
+# compared to previous runs without spurious diffs caused by source
+# directory name changes.
+
+srcdirFilter()
+{
+ sed '
+s%^[^ ]*/\(gcc/\)%\1%;
+s%^[^ ]*/\(include/\)%\1%;
+s%^[^ ]*/\(texinfo/\)%\1%;
+s%^[^ ]*/\(fastjar/\)%\1%;
+s%^[^ ]*/\(zlib/\)%\1%;
+s%^[^ ]*/\(fixincludes/\)%\1%;
+s%^[^ ]*/\(sim/\)%\1%;
+s%^[^ ]*/\(newlib/\)%\1%;
+s%^[^ ]*/\(mpfr/\)%\1%;
+s%^[^ ]*/\(lib[a-z23+-]*/\)%\1%;'
+}
# Start the main section.
-usage="usage: `basename $0` [-llf] [-s stage] [-nosub|-ch|-cp|-f|-java] [-pass|-wpass] [file(s)]"
+usage="usage: `basename $0` [-llf] [-s stage] [-nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc] [-pass|-wpass] [file(s)]"
stageN=3
tmpfile=/tmp/tmp-warn.$$
while test -n "$1" ; do
case "$1" in
-llf) llf=1 ; shift ;;
- -s) if test -z "$2"; then echo $usage; exit 1; fi; stageN="$2"; shift 2 ;;
+ -s) if test -z "$2"; then echo $usage 1>&2; exit 1; fi
+ stageN="$2"; shift 2 ;;
-s*) stageN="`expr $1 : '-s\(.*\)'`" ; shift ;;
- -nosub|-ch|-cp|-f|-java) filter="`expr $1 : '-\(.*\)'`" ; shift ;;
+ -nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc) filter="`expr $1 : '-\(.*\)'`" ; shift ;;
-pass) pass=1 ; shift ;;
-wpass) pass=w ; shift ;;
- -*) echo $usage ; exit 1 ;;
+ -*) echo $usage 1>&2 ; exit 1 ;;
*) break ;;
esac
done
# Check for a valid value of $stageN.
case "$stageN" in
[0-9]) ;;
- *) echo "Stage <$stageN> must be in the range [0..9]." ; exit 1 ;;
+ *) echo "Stage <$stageN> must be in the range [0..9]." 1>&2 ; exit 1 ;;
esac
for file in "$@" ; do
- subdirectoryFilter $file | stageNfilter > $tmpfile
+ stageNfilter < $file | subdirectoryFilter > $tmpfile
# (Just) show me the warnings.
if test "$pass" != '' ; then
if test "$pass" = w ; then
- warningFilter $tmpfile
+ warningFilter < $tmpfile
else
cat $tmpfile
fi
echo "Counting warnings in the gcc/$filter subdirectory,"
fi
fi
- count=`warningFilter $tmpfile | wc -l`
+ count=`warningFilter < $tmpfile | wc -l`
echo there are $count warnings in stage$stageN of this bootstrap.
echo
echo Number of warnings per file:
- warningFilter $tmpfile | $AWK -F: '{print$1}' | sort | uniq -c | sort -nr
+ warningFilter < $tmpfile | srcdirFilter | $AWK -F: '{print$1}' | sort | \
+ uniq -c | sort -nr
echo
echo Number of warning types:
- warningFilter $tmpfile | keywordFilter | sort | uniq -c | sort -nr
+ warningFilter < $tmpfile | keywordFilter | sort | uniq -c | sort -nr
done
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