1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
#!/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
|
