summaryrefslogtreecommitdiffstats
path: root/tools/perf/tests/shell/buildid.sh
blob: 3383ca3399d4c59c6cc4a8497b6d2ab291e7b85c (plain)
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
#!/bin/sh
# build id cache operations
# SPDX-License-Identifier: GPL-2.0

# skip if there's no readelf
if ! [ -x "$(command -v readelf)" ]; then
	echo "failed: no readelf, install binutils"
	exit 2
fi

# skip if there's no compiler
if ! [ -x "$(command -v cc)" ]; then
	echo "failed: no compiler, install gcc"
	exit 2
fi

# check what we need to test windows binaries
add_pe=1
run_pe=1
if ! perf version --build-options | grep -q 'libbfd: .* on '; then
	echo "WARNING: perf not built with libbfd. PE binaries will not be tested."
	add_pe=0
	run_pe=0
fi
if ! which wine > /dev/null; then
	echo "WARNING: wine not found. PE binaries will not be run."
	run_pe=0
fi

# set up wine
if [ ${run_pe} -eq 1 ]; then
	wineprefix=$(mktemp -d /tmp/perf.wineprefix.XXX)
	export WINEPREFIX=${wineprefix}
	# clear display variables to prevent wine from popping up dialogs
	unset DISPLAY
	unset WAYLAND_DISPLAY
fi

ex_md5=$(mktemp /tmp/perf.ex.MD5.XXX)
ex_sha1=$(mktemp /tmp/perf.ex.SHA1.XXX)
ex_pe=$(dirname $0)/../pe-file.exe

echo 'int main(void) { return 0; }' | cc -Wl,--build-id=sha1 -o ${ex_sha1} -x c -
echo 'int main(void) { return 0; }' | cc -Wl,--build-id=md5 -o ${ex_md5} -x c -

echo "test binaries: ${ex_sha1} ${ex_md5} ${ex_pe}"

check()
{
	case $1 in
	*.exe)
		# We don't have a tool that can pull a nicely formatted build-id out of
		# a PE file, but we can extract the whole section with objcopy and
		# format it ourselves. The .buildid section is a Debug Directory
		# containing a CodeView entry:
		#     https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#debug-directory-image-only
		#     https://github.com/dotnet/runtime/blob/da94c022576a5c3bbc0e896f006565905eb137f9/docs/design/specs/PE-COFF.md
		# The build-id starts at byte 33 and must be rearranged into a GUID.
		id=`objcopy -O binary --only-section=.buildid $1 /dev/stdout | \
			cut -c 33-48 | hexdump -ve '/1 "%02x"' | \
			sed 's@^\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(.*\)0a$@\4\3\2\1\6\5\8\7\9@'`
		;;
	*)
		id=`readelf -n ${1} 2>/dev/null | grep 'Build ID' | awk '{print $3}'`
		;;
	esac
	echo "build id: ${id}"

	id_file=${id#??}
	id_dir=${id%$id_file}
	link=$build_id_dir/.build-id/$id_dir/$id_file
	echo "link: ${link}"

	if [ ! -h $link ]; then
		echo "failed: link ${link} does not exist"
		exit 1
	fi

	file=${build_id_dir}/.build-id/$id_dir/`readlink ${link}`/elf
	echo "file: ${file}"

	# Check for file permission of original file
	# in case of pe-file.exe file
	echo $1 | grep ".exe"
	if [ $? -eq 0 ]; then
		if [ -x $1 ] && [ ! -x $file ]; then
			echo "failed: file ${file} executable does not exist"
			exit 1
		fi

		if [ ! -x $file ] && [ ! -e $file ]; then
			echo "failed: file ${file} does not exist"
			exit 1
		fi
	elif [ ! -x $file ]; then
		echo "failed: file ${file} does not exist"
		exit 1
	fi

	diff ${file} ${1}
	if [ $? -ne 0 ]; then
		echo "failed: ${file} do not match"
		exit 1
	fi

	${perf} buildid-cache -l | grep ${id}
	if [ $? -ne 0 ]; then
		echo "failed: ${id} is not reported by \"perf buildid-cache -l\""
		exit 1
	fi

	echo "OK for ${1}"
}

test_add()
{
	build_id_dir=$(mktemp -d /tmp/perf.debug.XXX)
	perf="perf --buildid-dir ${build_id_dir}"

	${perf} buildid-cache -v -a ${1}
	if [ $? -ne 0 ]; then
		echo "failed: add ${1} to build id cache"
		exit 1
	fi

	check ${1}

	rm -rf ${build_id_dir}
}

test_record()
{
	data=$(mktemp /tmp/perf.data.XXX)
	build_id_dir=$(mktemp -d /tmp/perf.debug.XXX)
	log_out=$(mktemp /tmp/perf.log.out.XXX)
	log_err=$(mktemp /tmp/perf.log.err.XXX)
	perf="perf --buildid-dir ${build_id_dir}"

	echo "running: perf record $*"
	${perf} record --buildid-all -o ${data} "$@" 1>${log_out} 2>${log_err}
	if [ $? -ne 0 ]; then
		echo "failed: record $*"
		echo "see log: ${log_err}"
		exit 1
	fi

	args="$*"
	check ${args##* }

	rm -f ${log_out} ${log_err}
	rm -rf ${build_id_dir}
	rm -rf ${data}
}

# add binaries manual via perf buildid-cache -a
test_add ${ex_sha1}
test_add ${ex_md5}
if [ ${add_pe} -eq 1 ]; then
	test_add ${ex_pe}
fi

# add binaries via perf record post processing
test_record ${ex_sha1}
test_record ${ex_md5}
if [ ${run_pe} -eq 1 ]; then
	test_record wine ${ex_pe}
fi

# cleanup
rm ${ex_sha1} ${ex_md5}
if [ ${run_pe} -eq 1 ]; then
	rm -r ${wineprefix}
fi

exit 0