0
|
1 #!/bin/sh
|
|
2 #
|
|
3 # This script parses the output of a gcc bootstrap when using warning
|
|
4 # flags and determines various statistics.
|
|
5 #
|
|
6 # usage: warn_summary [-llf] [-s stage] [-nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc]
|
|
7 # [-pass|-wpass] [file(s)]
|
|
8 #
|
|
9 # -llf
|
|
10 # Filter out long lines from the bootstrap output before any other
|
|
11 # action. This is useful for systems with broken awks/greps which choke
|
|
12 # on long lines. It is not done by default as it sometimes slows things
|
|
13 # down.
|
|
14 #
|
|
15 # -s number
|
|
16 # Take warnings from stage "Number". Stage 0 means show warnings from
|
|
17 # before and after the gcc bootstrap directory. E.g. libraries, etc.
|
|
18 # This presupposes using "gcc -W*" for the stage1 compiler.
|
|
19 #
|
|
20 # -nosub
|
|
21 # Only show warnings from the gcc top level directory.
|
|
22 # -ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc
|
|
23 # Only show warnings from the specified gcc subdirectory.
|
|
24 # These override each other so only the last one passed takes effect.
|
|
25 #
|
|
26 # -pass
|
|
27 # Pass through the bootstrap output after filtering stage and subdir
|
|
28 # (useful for manual inspection.) This is all lines, not just warnings.
|
|
29 # -wpass
|
|
30 # Pass through only warnings from the bootstrap output after filtering
|
|
31 # stage and subdir.
|
|
32 #
|
|
33 # By Kaveh Ghazi (ghazi@caip.rutgers.edu) 12/13/97.
|
|
34
|
|
35
|
|
36 # Some awks choke on long lines, sed seems to do a better job.
|
|
37 # Truncate lines > 255 characters. RE '.\{255,\}' doesn't seem to work. :-(
|
|
38 # Only do this if -llf was specified, because it can really slow things down.
|
|
39 longLineFilter()
|
|
40 {
|
|
41 if test -z "$llf" ; then
|
|
42 cat
|
|
43 else
|
|
44 sed 's/^\(...............................................................................................................................................................................................................................................................\).*/\1/'
|
|
45 fi
|
|
46 }
|
|
47
|
|
48 # This function does one of three things. It either passes through
|
|
49 # all warning data, or passes through gcc toplevel warnings, or passes
|
|
50 # through a particular subdirectory set of warnings.
|
|
51 subdirectoryFilter()
|
|
52 {
|
|
53 longLineFilter | (
|
|
54 if test -z "$filter" ; then
|
|
55 # Pass through all lines.
|
|
56 cat
|
|
57 else
|
|
58 if test "$filter" = nosub ; then
|
|
59 # Omit all subdirectories.
|
|
60 egrep -v '/gcc/(ch|cp|f|fortran|java|ada|intl|fixinc)/'
|
|
61 else
|
|
62 # Pass through only subdir $filter.
|
|
63 grep "/gcc/$filter/"
|
|
64 fi
|
|
65 fi )
|
|
66 }
|
|
67
|
|
68 # This function displays all lines from stageN of the bootstrap. If
|
|
69 # stage==0, then show lines prior to stage1 and lines from after the last
|
|
70 # stage. I.e. utilities, libraries, etc.
|
|
71 stageNfilter()
|
|
72 {
|
|
73 if test "$stageN" -lt 1 ; then
|
|
74 # stage "0" means check everything *but* gcc.
|
|
75 $AWK "BEGIN{t=1} ; /^Bootstrapping the compiler/{t=0} ; /^Building runtime libraries/{t=1} ; {if(t==1)print}"
|
|
76 else
|
|
77 if test "$stageN" -eq 1 ; then
|
|
78 $AWK "/^Bootstrapping the compiler|^Building the C and C\+\+ compiler/{t=1} ; /stage$stageN/{t=0} ; {if(t==1)print}"
|
|
79 else
|
|
80 stageNminus1=`expr $stageN - 1`
|
|
81 $AWK "/stage${stageNminus1}\//{t=1} ; /stage$stageN/{t=0} ; {if(t==1)print}"
|
|
82 fi
|
|
83 fi
|
|
84 }
|
|
85
|
|
86 # This function displays lines containing warnings.
|
|
87 warningFilter()
|
|
88 {
|
|
89 grep ' warning: '
|
|
90 }
|
|
91
|
|
92 # This function replaces `xxx' with `???', where xxx is usually some
|
|
93 # variable or function name. This allows similar warnings to be
|
|
94 # counted together when summarizing. However it avoids replacing
|
|
95 # certain C keywords which are known appear in various messages.
|
|
96
|
|
97 keywordFilter() {
|
|
98 sed 's/.*warning: //;
|
|
99 s/`\(int\)'"'"'/"\1"/g;
|
|
100 s/`\(long\)'"'"'/"\1"/g;
|
|
101 s/`\(char\)'"'"'/"\1"/g;
|
|
102 s/`\(inline\)'"'"'/"\1"/g;
|
|
103 s/`\(else\)'"'"'/"\1"/g;
|
|
104 s/`\(return\)'"'"'/"\1"/g;
|
|
105 s/`\(static\)'"'"'/"\1"/g;
|
|
106 s/`\(extern\)'"'"'/"\1"/g;
|
|
107 s/`\(const\)'"'"'/"\1"/g;
|
|
108 s/`\(noreturn\)'"'"'/"\1"/g;
|
|
109 s/`\(longjmp\)'"'"' or `\(vfork\)'"'"'/"\1" or "\2"/g;
|
|
110 s/'"[\`'][^']*'/"'"???"/g;
|
|
111 s/.*format, .* arg (arg [0-9][0-9]*)/??? format, ??? arg (arg ???)/;
|
|
112 s/\([( ]\)arg [0-9][0-9]*\([) ]\)/\1arg ???\2/;
|
|
113 s/"\([^"]*\)"/`\1'"'"'/g'
|
|
114 }
|
|
115
|
|
116 # This function strips out relative pathnames for source files printed
|
|
117 # by the warningFilter function. This is done so that as the snapshot
|
|
118 # directory name changes every week, the output of this program can be
|
|
119 # compared to previous runs without spurious diffs caused by source
|
|
120 # directory name changes.
|
|
121
|
|
122 srcdirFilter()
|
|
123 {
|
|
124 sed '
|
|
125 s%^[^ ]*/\(gcc/\)%\1%;
|
|
126 s%^[^ ]*/\(include/\)%\1%;
|
|
127 s%^[^ ]*/\(texinfo/\)%\1%;
|
|
128 s%^[^ ]*/\(fastjar/\)%\1%;
|
|
129 s%^[^ ]*/\(zlib/\)%\1%;
|
|
130 s%^[^ ]*/\(fixincludes/\)%\1%;
|
|
131 s%^[^ ]*/\(sim/\)%\1%;
|
|
132 s%^[^ ]*/\(newlib/\)%\1%;
|
|
133 s%^[^ ]*/\(mpfr/\)%\1%;
|
|
134 s%^[^ ]*/\(lib[a-z23+-]*/\)%\1%;'
|
|
135 }
|
|
136
|
|
137 # Start the main section.
|
|
138
|
|
139 usage="usage: `basename $0` [-llf] [-s stage] [-nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc] [-pass|-wpass] [file(s)]"
|
|
140 stageN=3
|
|
141 tmpfile=/tmp/tmp-warn.$$
|
|
142
|
|
143 # Remove $tmpfile on exit and various signals.
|
|
144 trap "rm -f $tmpfile" 0
|
|
145 trap "rm -f $tmpfile ; exit 1" 1 2 3 5 9 13 15
|
|
146
|
|
147 # Find a good awk.
|
|
148 if test -z "$AWK" ; then
|
|
149 for AWK in gawk nawk awk ; do
|
|
150 if type $AWK 2>&1 | grep 'not found' > /dev/null 2>&1 ; then
|
|
151 :
|
|
152 else
|
|
153 break
|
|
154 fi
|
|
155 done
|
|
156 fi
|
|
157
|
|
158 # Parse command line arguments.
|
|
159 while test -n "$1" ; do
|
|
160 case "$1" in
|
|
161 -llf) llf=1 ; shift ;;
|
|
162 -s) if test -z "$2"; then echo $usage 1>&2; exit 1; fi
|
|
163 stageN="$2"; shift 2 ;;
|
|
164 -s*) stageN="`expr $1 : '-s\(.*\)'`" ; shift ;;
|
|
165 -nosub|-ch|-cp|-f|-fortran|-java|-ada|-intl|-fixinc) filter="`expr $1 : '-\(.*\)'`" ; shift ;;
|
|
166 -pass) pass=1 ; shift ;;
|
|
167 -wpass) pass=w ; shift ;;
|
|
168 -*) echo $usage 1>&2 ; exit 1 ;;
|
|
169 *) break ;;
|
|
170 esac
|
|
171 done
|
|
172
|
|
173 # Check for a valid value of $stageN.
|
|
174 case "$stageN" in
|
|
175 [0-9]) ;;
|
|
176 *) echo "Stage <$stageN> must be in the range [0..9]." 1>&2 ; exit 1 ;;
|
|
177 esac
|
|
178
|
|
179 for file in "$@" ; do
|
|
180
|
|
181 stageNfilter < $file | subdirectoryFilter > $tmpfile
|
|
182
|
|
183 # (Just) show me the warnings.
|
|
184 if test "$pass" != '' ; then
|
|
185 if test "$pass" = w ; then
|
|
186 warningFilter < $tmpfile
|
|
187 else
|
|
188 cat $tmpfile
|
|
189 fi
|
|
190 continue
|
|
191 fi
|
|
192
|
|
193 if test -z "$filter" ; then
|
|
194 echo "Counting all warnings,"
|
|
195 else
|
|
196 if test "$filter" = nosub ; then
|
|
197 echo "Counting non-subdirectory warnings,"
|
|
198 else
|
|
199 echo "Counting warnings in the gcc/$filter subdirectory,"
|
|
200 fi
|
|
201 fi
|
|
202 count=`warningFilter < $tmpfile | wc -l`
|
|
203 echo there are $count warnings in stage$stageN of this bootstrap.
|
|
204
|
|
205 echo
|
|
206 echo Number of warnings per file:
|
|
207 warningFilter < $tmpfile | srcdirFilter | $AWK -F: '{print$1}' | sort | \
|
|
208 uniq -c | sort -nr
|
|
209
|
|
210 echo
|
|
211 echo Number of warning types:
|
|
212 warningFilter < $tmpfile | keywordFilter | sort | uniq -c | sort -nr
|
|
213
|
|
214 done
|