blob: 814a0e7fd0d1e5a699b54753c5be98f43293e1cc (
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
|
## Copyright (c) 2018 The WebM project authors. All Rights Reserved.
##
## Use of this source code is governed by a BSD-style license
## that can be found in the LICENSE file in the root of the source
## tree. An additional intellectual property rights grant can be found
## in the file PATENTS. All contributing project authors may
## be found in the AUTHORS file in the root of the source tree.
##
## Sourcing this file sets environment variables to simplify setting up
## sanitizer builds and testing.
sanitizer="${1}"
case "${sanitizer}" in
address) ;;
cfi) ;;
integer) ;;
memory) ;;
thread) ;;
undefined) ;;
clear)
echo "Clearing environment:"
set -x
unset CC CXX LD AR
unset CFLAGS CXXFLAGS LDFLAGS
unset ASAN_OPTIONS MSAN_OPTIONS TSAN_OPTIONS UBSAN_OPTIONS
set +x
return
;;
*)
echo "Usage: source set_analyzer_env.sh [<sanitizer>|clear]"
echo " Supported sanitizers:"
echo " address integer memory thread undefined"
return 1
;;
esac
if [ ! $(which clang) ]; then
# TODO(johannkoenig): Support gcc analyzers.
echo "ERROR: 'clang' must be in your PATH"
return 1
fi
# Warnings.
if [ "${sanitizer}" = "undefined" -o "${sanitizer}" = "integer" ]; then
echo "WARNING: When building the ${sanitizer} sanitizer for 32 bit targets"
echo "you must run:"
echo "export LDFLAGS=\"\${LDFLAGS} --rtlib=compiler-rt -lgcc_s\""
echo "See http://llvm.org/bugs/show_bug.cgi?id=17693 for details."
fi
if [ "${sanitizer}" = "undefined" ]; then
major_version=$(clang --version | head -n 1 \
| grep -o -E "[[:digit:]]\.[[:digit:]]\.[[:digit:]]" | cut -f1 -d.)
if [ ${major_version} -eq 5 ]; then
echo "WARNING: clang v5 has a problem with vp9 x86_64 high bit depth"
echo "configurations. It can take ~40 minutes to compile"
echo "vpx_dsp/x86/fwd_txfm_sse2.c"
echo "clang v4 did not have this issue."
fi
fi
echo "It is recommended to configure with '--enable-debug' to improve stack"
echo "traces. On mac builds, run 'dysmutil' on the output binaries (vpxenc,"
echo "test_libvpx, etc) to link the stack traces to source code lines."
# Build configuration.
cflags="-fsanitize=${sanitizer}"
ldflags="-fsanitize=${sanitizer}"
# http://code.google.com/p/webm/issues/detail?id=570
cflags="${cflags} -fno-strict-aliasing"
# Useful backtraces.
cflags="${cflags} -fno-omit-frame-pointer"
# Exact backtraces.
cflags="${cflags} -fno-optimize-sibling-calls"
if [ "${sanitizer}" = "cfi" ]; then
# https://clang.llvm.org/docs/ControlFlowIntegrity.html
cflags="${cflags} -flto -fvisibility=hidden"
ldflags="${ldflags} -flto -fuse-ld=gold"
export AR="llvm-ar"
fi
set -x
export CC="clang"
export CXX="clang++"
export LD="clang++"
export CFLAGS="${cflags}"
export CXXFLAGS="${cflags}"
export LDFLAGS="${ldflags}"
set +x
# Execution configuration.
sanitizer_options=""
sanitizer_options="${sanitizer_options}:handle_segv=1"
sanitizer_options="${sanitizer_options}:handle_abort=1"
sanitizer_options="${sanitizer_options}:handle_sigfpe=1"
sanitizer_options="${sanitizer_options}:fast_unwind_on_fatal=1"
sanitizer_options="${sanitizer_options}:allocator_may_return_null=1"
case "${sanitizer}" in
address)
sanitizer_options="${sanitizer_options}:detect_stack_use_after_return=1"
sanitizer_options="${sanitizer_options}:max_uar_stack_size_log=17"
set -x
export ASAN_OPTIONS="${sanitizer_options}"
set +x
;;
cfi)
# No environment settings
;;
memory)
set -x
export MSAN_OPTIONS="${sanitizer_options}"
set +x
;;
thread)
# The thread sanitizer uses an entirely independent set of options.
set -x
export TSAN_OPTIONS="halt_on_error=1"
set +x
;;
undefined|integer)
sanitizer_options="${sanitizer_options}:print_stacktrace=1"
set -x
export UBSAN_OPTIONS="${sanitizer_options}"
set +x
;;
esac
|
