blob: aec04019df29f96bd21758905c22b15dbfb93041 (
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
|
# Copyright 2011-2015 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 this program. If not, see <http://www.gnu.org/licenses/>.
load_lib "trace-support.exp"
standard_testfile
set executable $testfile
set expfile $testfile.exp
# Some targets have leading underscores on assembly symbols.
set additional_flags [gdb_target_symbol_prefix_flags]
if [is_amd64_regs_target] {
set pcreg "\$rip"
} elseif [is_x86_like_target] {
set pcreg "\$eip"
} elseif [is_aarch64_target] {
set pcreg "\$pc"
} else {
set pcreg "\$pc"
}
if [prepare_for_testing $expfile $executable $srcfile \
[list debug $additional_flags]] {
untested "failed to prepare for trace tests"
return -1
}
if ![runto_main] {
fail "Can't run to main to check for trace support"
return -1
}
if ![gdb_target_supports_trace] {
unsupported "target does not support trace"
return -1
}
set libipa [get_in_proc_agent]
gdb_load_shlibs $libipa
# Can't use prepare_for_testing, because that splits compiling into
# building objects and then linking, and we'd fail with "linker input
# file unused because linking not done" when building the object.
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
executable [list debug $additional_flags shlib=$libipa] ] != "" } {
untested "failed to compile ftrace tests"
return -1
}
clean_restart ${executable}
if ![runto_main] {
fail "Can't run to main for ftrace tests"
return 0
}
if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
untested "Could not find IPA lib loaded"
return 1
}
proc test_tracepoints { trace_command condition num_frames { kfail_proc 0 } } {
global executable gdb_prompt
clean_restart ${executable}
if ![runto_main] {
fail "Can't run to main for ftrace tests"
return 0
}
gdb_test "break begin" ".*" ""
gdb_test "break end" ".*" ""
with_test_prefix "${trace_command}: ${condition}" {
gdb_test "${trace_command} set_point if ${condition}" \
"\(Fast t|T\)racepoint .*" \
"set tracepoint"
gdb_test "continue" ".*Breakpoint \[0-9\]+, begin .*" \
"advance to trace begin"
gdb_test_no_output "tstart" "start trace experiment"
gdb_test_multiple "continue" "advance through tracing" {
-re ".*Breakpoint \[0-9\]+, end .*$gdb_prompt $" {
pass "advance through tracing"
}
-re "Program received signal SIGSEGV, Segmentation fault\\..*$gdb_prompt $" {
if { $kfail_proc != 0 } {
$kfail_proc $trace_command
}
fail "advance through tracing"
}
}
if { $kfail_proc != 0 } {
$kfail_proc $trace_command
}
gdb_test "tstatus" \
".*Trace .*Collected $num_frames .*" \
"check $num_frames frames were collected."
gdb_test "tstop" "" ""
}
}
# These callbacks identify known failures for certain architectures. They
# are called either if GDBserver crashes or has not traced the correct
# number of frames.
proc 18955_x86_64_failure { trace_command } {
if { $trace_command == "ftrace" } {
setup_kfail "gdb/18955" "x86_64-*-linux*"
}
}
proc 18955_i386_failure { trace_command } {
if { $trace_command == "ftrace" } {
setup_kfail "gdb/18955" "i\[34567\]86-*-*"
}
}
foreach trace_command { "trace" "ftrace" } {
# This condition is always true as the PC should be set to the tracepoint
# address when hit.
test_tracepoints $trace_command "$pcreg == *set_point" 10
# Can we read local variables?
test_tracepoints $trace_command "anarg == 100 || anarg == 200" 2 18955_x86_64_failure
# Can we read global variables?
test_tracepoints $trace_command "anarg == 100 && globvar == 1" 1 18955_x86_64_failure
# Test various operations to cover as many opcodes as possible.
test_tracepoints $trace_command "21 + 21 == 42" 10
test_tracepoints $trace_command "21 - 21 == 0" 10
test_tracepoints $trace_command "21 * 2 == 42" 10
test_tracepoints $trace_command "21 << 1 == 42" 10
test_tracepoints $trace_command "42 >> 1 == 21" 10
test_tracepoints $trace_command "-21 << 1 == -42" 10
test_tracepoints $trace_command "-42 >> 1 == -21" 10
test_tracepoints $trace_command "(0xabababab & 0x0000ffff) == 0xabab" 10
test_tracepoints $trace_command "(0xabababab | 0x0000ffff) == 0xababffff" 10
test_tracepoints $trace_command "(0xaaaaaaaa ^ 0x55555555) == 0xffffffff" 10
test_tracepoints $trace_command "~0xaaaaaaaa == 0x55555555" 10
test_tracepoints $trace_command "21 < 42" 10
test_tracepoints $trace_command "42 <= 42" 10
test_tracepoints $trace_command "42 >= 42" 10
test_tracepoints $trace_command "42 > 21" 10
test_tracepoints $trace_command "(21 < 42 ? 0 : 1) == 0" 10 18955_i386_failure
test_tracepoints $trace_command "(42 <= 42 ? 0 : 1) == 0" 10
test_tracepoints $trace_command "(42 >= 42 ? 0 : 1) == 0" 10
test_tracepoints $trace_command "(42 > 21 ? 0 : 1) == 0" 10 18955_i386_failure
test_tracepoints $trace_command "\$trace_timestamp >= 0" 10
}
|
