mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-05 01:34:12 +08:00
211 lines
6.2 KiB
Bash
Executable File
211 lines
6.2 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# 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|-ada|-intl|-fixinc]
|
|
# [-pass|-wpass] [file(s)]
|
|
#
|
|
# -llf
|
|
# 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.
|
|
#
|
|
# -s number
|
|
# Take warnings from stage "Number". Stage 0 means show warnings from
|
|
# before and after the gcc bootstrap directory. E.g. libraries, etc.
|
|
# This presupposes using "gcc -W*" for the stage1 compiler.
|
|
#
|
|
# -nosub
|
|
# Only show warnings from the gcc top level directory.
|
|
# -ch|-cp|-f|-java|-ada|-intl|-fixinc
|
|
# Only show warnings from the specified language subdirectory.
|
|
# These override each other so only the last one passed takes effect.
|
|
#
|
|
# -pass
|
|
# Pass through the bootstrap output after filtering stage and subdir
|
|
# (useful for manual inspection.) This is all lines, not just warnings.
|
|
# -wpass
|
|
# Pass through only warnings from the bootstrap output after filtering
|
|
# stage and subdir.
|
|
#
|
|
# By Kaveh Ghazi (ghazi@caip.rutgers.edu) 12/13/97.
|
|
|
|
|
|
# Some awks choke on long lines, sed seems to do a better job.
|
|
# Truncate lines > 255 characters. RE '.\{255,\}' doesn't seem to work. :-(
|
|
# Only do this if -llf was specified, because it can really slow things down.
|
|
longLineFilter()
|
|
{
|
|
if test -z "$llf" ; then
|
|
cat
|
|
else
|
|
sed 's/^\(...............................................................................................................................................................................................................................................................\).*/\1/'
|
|
fi
|
|
}
|
|
|
|
# This function does one of three things. It either passes through
|
|
# all warning data, or passes through gcc toplevel warnings, or passes
|
|
# through a particular subdirectory set of warnings.
|
|
subdirectoryFilter()
|
|
{
|
|
longLineFilter | (
|
|
if test -z "$filter" ; then
|
|
# Pass through all lines.
|
|
cat
|
|
else
|
|
if test "$filter" = nosub ; then
|
|
# Omit all subdirectories.
|
|
egrep -v '/gcc/(ch|cp|f|java|intl|fixinc)/'
|
|
else
|
|
# Pass through only subdir $filter.
|
|
grep "/gcc/$filter/"
|
|
fi
|
|
fi )
|
|
}
|
|
|
|
# This function displays all lines from stageN of the bootstrap. If
|
|
# stage==0, then show lines prior to stage1 and lines from after the last
|
|
# stage. I.e. utilities, libraries, etc.
|
|
stageNfilter()
|
|
{
|
|
if test "$stageN" -lt 1 ; then
|
|
# stage "0" means check everything *but* gcc.
|
|
$AWK "BEGIN{t=1} ; /^Bootstrapping the compiler/{t=0} ; /^Building runtime libraries/{t=1} ; {if(t==1)print}"
|
|
else
|
|
if test "$stageN" -eq 1 ; then
|
|
$AWK "/^Bootstrapping the compiler|^Building the C and C\+\+ compiler/{t=1} ; /stage$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}"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# This function displays lines containing warnings.
|
|
warningFilter()
|
|
{
|
|
grep ' warning: '
|
|
}
|
|
|
|
# This function replaces `xxx' with `???', where xxx is usually some
|
|
# variable or function name. This allows similar warnings to be
|
|
# counted together when summarizing. However it avoids replacing
|
|
# certain C keywords which are known appear in various messages.
|
|
|
|
keywordFilter() {
|
|
sed 's/.*warning: //;
|
|
s/`\(int\)'"'"'/"\1"/g;
|
|
s/`\(long\)'"'"'/"\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/`\(const\)'"'"'/"\1"/g;
|
|
s/`\(noreturn\)'"'"'/"\1"/g;
|
|
s/`\(longjmp\)'"'"' or `\(vfork\)'"'"'/"\1" or "\2"/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%^[^ ]*/\(lib[a-z23+-]*/\)%\1%;'
|
|
}
|
|
|
|
# Start the main section.
|
|
|
|
usage="usage: `basename $0` [-llf] [-s stage] [-nosub|-ch|-cp|-f|-java|-ada|-intl|-fixinc] [-pass|-wpass] [file(s)]"
|
|
stageN=3
|
|
tmpfile=/tmp/tmp-warn.$$
|
|
|
|
# Remove $tmpfile on exit and various signals.
|
|
trap "rm -f $tmpfile" 0
|
|
trap "rm -f $tmpfile ; exit 1" 1 2 3 5 9 13 15
|
|
|
|
# Find a good awk.
|
|
if test -z "$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
|
|
|
|
# Parse command line arguments.
|
|
while test -n "$1" ; do
|
|
case "$1" in
|
|
-llf) llf=1 ; shift ;;
|
|
-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|-ada|-intl|-fixinc) filter="`expr $1 : '-\(.*\)'`" ; shift ;;
|
|
-pass) pass=1 ; shift ;;
|
|
-wpass) pass=w ; shift ;;
|
|
-*) echo $usage 1>&2 ; exit 1 ;;
|
|
*) break ;;
|
|
esac
|
|
done
|
|
|
|
# Check for a valid value of $stageN.
|
|
case "$stageN" in
|
|
[0-9]) ;;
|
|
*) echo "Stage <$stageN> must be in the range [0..9]." 1>&2 ; exit 1 ;;
|
|
esac
|
|
|
|
for file in "$@" ; do
|
|
|
|
stageNfilter < $file | subdirectoryFilter > $tmpfile
|
|
|
|
# (Just) show me the warnings.
|
|
if test "$pass" != '' ; then
|
|
if test "$pass" = w ; then
|
|
warningFilter < $tmpfile
|
|
else
|
|
cat $tmpfile
|
|
fi
|
|
continue
|
|
fi
|
|
|
|
if test -z "$filter" ; then
|
|
echo "Counting all warnings,"
|
|
else
|
|
if test "$filter" = nosub ; then
|
|
echo "Counting non-subdirectory warnings,"
|
|
else
|
|
echo "Counting warnings in the gcc/$filter subdirectory,"
|
|
fi
|
|
fi
|
|
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 | srcdirFilter | $AWK -F: '{print$1}' | sort | \
|
|
uniq -c | sort -nr
|
|
|
|
echo
|
|
echo Number of warning types:
|
|
warningFilter < $tmpfile | keywordFilter | sort | uniq -c | sort -nr
|
|
|
|
done
|