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
|
#!/bin/bash
# Compare the IR generated for the shipped
# tools between two bpftrace builds
#
set -o pipefail
set -e
set -u
if [[ "$#" -ne 3 ]]; then
echo "Compare IR generated between two bpftrace builds"
echo ""
echo "USAGE:"
echo "$(basename $0) <bpftrace_A> <bpftrace_B> <tooldir>"
echo ""
echo "EXAMPLE:"
echo "$(basename $0) bpftrace bpftrace_master ./tools"
echo ""
exit 1
fi
TOOLDIR=$3
BPF_A=$(command -v "$1") || ( echo "ERROR: $1 not found"; exit 1 )
BPF_B=$(command -v "$2") || ( echo "ERROR: $2 not found"; exit 1 )
[[ -d "$TOOLDIR" ]] || (echo "tooldir does not appear to be a directory: ${TOOLDIR}"; exit 1)
# Set to 1 to only compare result after opt
AFTER_OPT=0
if [ $AFTER_OPT -eq 1 ]; then
FLAGS="-d"
else
FLAGS="-dd"
fi
TMPDIR=$(mktemp -d)
[[ $? -ne 0 || -z $TMPDIR ]] && (echo "Failed to create tmp dir"; exit 10)
cd $TMPDIR
set +e
function hash() {
file="${1}"
sha1sum "${1}" | awk '{print $1}'
}
function fix_timestamp() {
cat $@ | awk '/(add|sub) i64 %get_ns/ { $NF = ""} {print}'
}
echo "Using version $($BPF_A -V) and $($BPF_B -V)"
for script in ${TOOLDIR}/*.bt; do
s=$(basename ${script/.bt/})
echo "Checking $s"
2>&1 $BPF_A "$FLAGS" "$script" | fix_timestamp > "a_${s}"
2>&1 $BPF_B "$FLAGS" "$script" | fix_timestamp > "b_${s}"
if [ $? -ne 0 ]; then
echo "###############################"
echo "bpftrace failed on script: ${s}"
echo "###############################"
continue
fi
if [[ $(hash "a_${s}") != $(hash "b_${s}") ]]; then
echo "###############################"
echo "Change detected for script: ${s}"
diff -b -u "a_${s}" "b_${s}"
fi
done
[[ -n ${TMPDIR} ]] && rm -rf "${TMPDIR}"
|
