plan9fox/rc/bin/leak

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#!/bin/rc
rfork e
flagfmt='a,b,c,d,s,f binary,r res,x width'
args='name | pid list'
if(! ifs=() eval `{aux/getflags $*} || ~ $#* 0){
aux/usage
exit usage
}
conflicting=($flagb $flagc $flags)
if(~ $#conflicting 2 || ~ $#conflicting 3){
echo 'can only use one of -b, -c or -s' >[1=2]
exit usage
}
leakflags=()
if(~ $#flags 1)
leakflags=($leakflags -s)
if(~ $#flaga 1)
leakflags=($leakflags -a)
if(~ $#flagc 1)
leakflags=($leakflags -c)
if(~ $#flagd 1)
leakflags=($leakflags -d)
if(~ $#flagf 1)
leakflags=($leakflags -f $flagf)
acidleakflags=()
if(~ $#flagb 1)
acidleakflags=($acidleakflags -b)
if(~ $#flagr 1)
acidleakflags=($acidleakflags -r $flagr)
if(~ $#flagx 1)
acidleakflags=($acidleakflags -x $flagx)
if(! test -d /proc/$1) {
# x=`{psu | awk '$NF=="'$1'" {print $2}'}
x=`{psu | grep ' '$1'$' | sed 's/^[^ ]+ +([0-9]+).*/\1/'}
if(~ $#x 0) {
echo 'no processes named '$1 >[1=2]
exit usage
}
echo leak $leakflags $acidleakflags $x
exit
}
pidlist=`{echo $"* | tr ' ' ,}
echo 'leakdump({'$pidlist'})' | acid -lpool -lleak $1 $flagf |
{
if(~ $#flaga 1 && ~ $#flagd 1)
grep 'block|free'
if not
if(~ $#flaga 1)
grep block
if not
if(~ $#flagd 1)
grep free
if not
aux/acidleak $acidleakflags $flagf
} |
{
if(~ $#flags 1)
awk '{print $4}' |
sort | uniq -c | sort -nr |
sed 's! *(.*) (0x.*)!src(\2); // \1!'
if not
if(~ $#flagc 1)
awk 'BEGIN {
for(i=0; i<16; i++)
_unhex[sprintf("%x", i)] = _unhex[sprintf("%X", i)] = i
}
function unhex(s, i, v) {
sub("^0[xX]0*","",s)
for (i=1; i<=length(s); i++)
v = v*16 + _unhex[substr(s,i,1)]
return v
}
{ sum[$4] += unhex($3);
count[$4]++;
alloc[$4] = $6;
}
END {
for (v in sum) {
printf("src(%s);\t// %d\t%d\t%d\t%s\n", v, sum[v], count[v], sum[v] / count[v], alloc[v])
total += sum[v]
}
printf("// %d\n", total);
}
' | sort -nr +2
if not
cat
}