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
|
# Copyright 2013-2019 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 actions.c
if ![gdb_trace_common_supports_arch] {
unsupported "no trace-common.h support for arch"
return -1
}
if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug}] } {
return -1
}
if ![runto_main] {
fail "can't run to main to check for trace support"
return -1
}
if ![gdb_target_supports_trace] {
unsupported "current target does not support trace"
return -1
}
gdb_exit
load_lib mi-support.exp
set MIFLAGS "-i=mi"
if [mi_gdb_start] {
return
}
mi_run_to_main
mi_gdb_test "-break-insert end" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"breakpoint\".*\"\}" \
"insert tracepoint on end"
mi_gdb_test "-break-insert -a gdb_recursion_test" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
"insert tracepoint on gdb_recursion_test"
mi_gdb_test "-trace-define-variable \$tsv 1" {.*\^done} \
"-trace-define-variable"
mi_gdb_test "-break-commands 3 \"collect gdb_char_test\" \"collect gdb_union1_test\" \"collect gdb_struct1_test.l\" \"collect gdb_arr_test\[0\]\" \"collect $${pcreg}\" \"teval \$tsv += 1\" \"collect \$tsv\" \"end\" " \
{\^done} "set action"
mi_gdb_test "-break-insert -a gdb_c_test" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
"insert tracepoint on gdb_c_test"
# Define an action.
# Collect a global variable to be sure no registers are collected
# except PC.
mi_gdb_test "-break-commands 4 \"collect gdb_char_test\" \"end\" " \
{\^done} "set action on tracepoint 4"
mi_gdb_test "-trace-start" {.*\^done} "trace start"
mi_send_resuming_command "exec-continue" "continuing to end"
mi_expect_stop \
"breakpoint-hit" "end" ".*" ".*" ".*" {"" "disp=\"keep\""} \
"stop at end"
mi_gdb_test "-trace-stop" {.*\^done,stop-reason=.*} "trace stop"
# Save trace frames to tfile.
set tracefile [standard_output_file ${testfile}]
mi_gdb_test "-trace-save ${tracefile}.tf" ".*\\^done" \
"save tfile trace file"
# Save trace frames to ctf.
mi_gdb_test "-trace-save -ctf ${tracefile}.ctf" ".*\\^done" \
"save ctf trace file"
# Test the MI command '-trace-frame-collected' with DATA_SOURCE as
# trace data source.
proc test_trace_frame_collected { data_source } {
global decimal hex
global mi_gdb_prompt
with_test_prefix "$data_source" {
mi_gdb_test "-trace-find frame-number 0" \
".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
"-trace-find frame-number 0"
set reg_pattern "\{number=\"$decimal\",value=\"$hex\"\}"
# Test MI command '-trace-frame-collected' dumps only
# collected registers.
# While the tracepoint has no explicit action that causes
# collection of registers other than the PC, some
# architectures manage to collect or guess more than that.
if { [istarget "s390*-*-*"] } {
# On s390 PC is a pseudo-register - collecting it also
# collects the underlying PSWA register.
if { "$data_source" != "tfile" } {
set reg_pattern "$reg_pattern,$reg_pattern"
} else {
# For tfile, PSWM and CC are also guessed.
set reg_pattern "$reg_pattern,$reg_pattern,$reg_pattern,$reg_pattern"
}
} elseif {[is_amd64_regs_target] && [is_ilp32_target]} {
# x32. While on the 64-bit ABI gdb only exposes 64-bit
# $pc/$rip, on x32, GDB exposes 32-bit $eip as well, as a
# pseudo-register. Thus, collecting $pc/$rip
# automatically always collects $eip as well.
set reg_pattern "$reg_pattern,$reg_pattern"
}
mi_gdb_test "-trace-frame-collected" \
"\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",value=\".*\"\}\\\],computed-expressions=\\\[\\\],registers=\\\[$reg_pattern\\\],tvars=\\\[\\\],memory=\\\[\{address=\"$hex\",length=\"1\"\}\\\]"\
"-trace-frame-collected (register)"
mi_gdb_test "-trace-find frame-number 1" \
".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"1\",frame=\{.*" \
"-trace-find frame-number 1"
# Test MI command '-trace-frame-collected'
mi_gdb_test "-trace-frame-collected" \
"\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",value=\".*\"\},\{name=\"gdb_union1_test\",value=\".*\"\}\\\],computed-expressions=\\\[\{name=\"gdb_struct1_test\.l\",.*\},\{name=\"gdb_arr_test\\\[0\\\]\",.*\}\\\],registers=\\\[.*\\\],tvars=\\\[\{name=\"\\\$tsv\",current=\"2\"\}\\\],memory=\\\[\{address=\"$hex\",length=\"1\"\},.*\\\]"\
"-trace-frame-collected"
mi_gdb_test "-trace-frame-collected --var-print-values 2 --comp-print-values --simple-values --registers-format x --memory-contents" \
"\\^done,explicit-variables=\\\[\{name=\"gdb_char_test\",type=\"char\",value=\".*\"\},\{name=\"gdb_union1_test\",type=\"union GDB_UNION_TEST\"\}\\\],computed-expressions=\\\[.*\\\],registers=\\\[.*\\\],tvars=\\\[\{name=\"\\\$tsv\",current=\"2\"\}\\\],memory=\\\[\{address=\"$hex\",length=\"1\",contents=\".*\"\},.*\\\]" \
"-trace-frame-collected --var-print-values 2 --comp-print-values --simple-values --registers-format x --memory-contents"
mi_gdb_test "-trace-find none" ".*\\^done,found=\"0\".*" \
"-trace-find none"
}
}
test_trace_frame_collected "live"
# Change target to ctf if GDB supports it.
set msg "-target-select ctf"
send_gdb "-target-select ctf ${tracefile}.ctf\n"
gdb_expect {
-re ".*\\^connected.*${mi_gdb_prompt}$" {
# GDB supports ctf, do the test.
test_trace_frame_collected "ctf"
}
-re ".*\\^error,msg=\"Undefined target command.*${mi_gdb_prompt}$" {
# GDB doesn't support ctf, skip the test.
unsupported "gdb does not support ctf target"
}
-re ".*$mi_gdb_prompt$" {
fail "$msg"
}
timeout {
fail "$msg (timeout)"
}
}
# Change target to tfile.
mi_gdb_test "-target-select tfile ${tracefile}.tf" ".*\\^connected.*" \
"-target-select tfile"
test_trace_frame_collected "tfile"
mi_gdb_exit
|
