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
|
# Copyright (C) 2020-2022 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
load_lib asan-dg.exp
# Return 1 if target can compile a binary for hardware address
# sanitization, 0 otherwise.
#
# NOTE: This should only be used between calls to hwasan_init and
# hwasan_finish. It is therefore defined here rather than in
# target-supports.exp.
proc check_effective_target_fsanitize_hwaddress {} {
if ![check_no_compiler_messages fsanitize_hwaddress executable {
int main (void) { return 0; }
}] {
return 0;
}
return 1;
}
# Return 1 if target can compile and run a binary for hardware address
# sanitization, 0 otherwise.
#
# NOTE: This should only be used between calls to hwasan_init and
# hwasan_finish. It is therefore defined here rather than in
# target-supports.exp.
proc check_effective_target_hwaddress_exec {} {
if ![check_runtime hwaddress_exec {
#ifdef __cplusplus
extern "C" {
#endif
extern int prctl(int, unsigned long, unsigned long, unsigned long, unsigned long);
#ifdef __cplusplus
}
#endif
int main (void) {
#define PR_SET_TAGGED_ADDR_CTRL 55
#define PR_GET_TAGGED_ADDR_CTRL 56
#define PR_TAGGED_ADDR_ENABLE (1UL << 0)
if (prctl (PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0) == -1)
return 1;
if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == -1
|| !prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0))
return 1;
return 0;
}
}] {
return 0;
}
return 1;
}
proc hwasan_include_flags {} {
global srcdir
global TESTING_IN_BUILD_TREE
set flags ""
if { [is_remote host] || ! [info exists TESTING_IN_BUILD_TREE] } {
return "${flags}"
}
set flags "-I$srcdir/../../libsanitizer/include"
return "$flags"
}
#
# hwasan_link_flags -- compute library path and flags to find libhwasan.
# (implementation in asan-dg.exp)
#
proc hwasan_link_flags { paths } {
return [asan_link_flags_1 $paths hwasan]
}
#
# hwasan_init -- called at the start of each subdir of tests
#
proc hwasan_init { args } {
global TEST_ALWAYS_FLAGS
global ALWAYS_CXXFLAGS
global TOOL_OPTIONS
global hwasan_saved_TEST_ALWAYS_FLAGS
global hwasan_saved_ALWAYS_CXXFLAGS
setenv HWASAN_OPTIONS "random_tags=0"
set link_flags ""
if ![is_remote host] {
if [info exists TOOL_OPTIONS] {
set link_flags "[hwasan_link_flags [get_multilibs ${TOOL_OPTIONS}]]"
} else {
set link_flags "[hwasan_link_flags [get_multilibs]]"
}
}
set include_flags "[hwasan_include_flags]"
if [info exists TEST_ALWAYS_FLAGS] {
set hwasan_saved_TEST_ALWAYS_FLAGS $TEST_ALWAYS_FLAGS
}
if [info exists ALWAYS_CXXFLAGS] {
set hwasan_saved_ALWAYS_CXXFLAGS $ALWAYS_CXXFLAGS
set ALWAYS_CXXFLAGS [concat "{ldflags=$link_flags}" $ALWAYS_CXXFLAGS]
set ALWAYS_CXXFLAGS [concat "{additional_flags=-fsanitize=hwaddress --param hwasan-random-frame-tag=0 -g $include_flags}" $ALWAYS_CXXFLAGS]
} else {
if [info exists TEST_ALWAYS_FLAGS] {
set TEST_ALWAYS_FLAGS "$link_flags -fsanitize=hwaddress --param hwasan-random-frame-tag=0 -g $include_flags $TEST_ALWAYS_FLAGS"
} else {
set TEST_ALWAYS_FLAGS "$link_flags -fsanitize=hwaddress --param hwasan-random-frame-tag=0 -g $include_flags"
}
}
}
#
# hwasan_finish -- called at the start of each subdir of tests
#
proc hwasan_finish { args } {
global TEST_ALWAYS_FLAGS
global hwasan_saved_TEST_ALWAYS_FLAGS
global hwasan_saved_ALWAYS_CXXFLAGS
global hwasan_saved_library_path
global ld_library_path
unsetenv HWASAN_OPTIONS
if [info exists hwasan_saved_ALWAYS_CXXFLAGS ] {
set ALWAYS_CXXFLAGS $hwasan_saved_ALWAYS_CXXFLAGS
} else {
if [info exists hwasan_saved_TEST_ALWAYS_FLAGS] {
set TEST_ALWAYS_FLAGS $hwasan_saved_TEST_ALWAYS_FLAGS
} else {
unset TEST_ALWAYS_FLAGS
}
}
if [info exists hwasan_saved_library_path] {
set ld_library_path $hwasan_saved_library_path
set_ld_library_path_env_vars
}
clear_effective_target_cache
}
# Utility for running gtest hwasan emulation under dejagnu, invoked via dg-final.
# Call pass if variable has the desired value, otherwise fail.
#
# Argument 0 handles expected failures and the like
proc hwasan-gtest { args } {
asan-gtest {*}$args
}
|
