1# Copyright 2013-2020 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16load_lib trace-support.exp
17
18standard_testfile trace-unavailable.c
19
20if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug nopie}] } {
21    return -1
22}
23
24if ![runto_main] {
25    fail "can't run to main to check for trace support"
26    return -1
27}
28
29if ![gdb_target_supports_trace] {
30    unsupported "current target does not support trace"
31    return -1
32}
33
34gdb_exit
35
36load_lib mi-support.exp
37set MIFLAGS "-i=mi"
38
39if [mi_gdb_start] {
40    return
41}
42mi_run_to_main
43
44mi_gdb_test "-break-insert marker" \
45    "\\^done,bkpt=\{number=\"${decimal}\",type=\"breakpoint\".*\"\}" \
46    "insert tracepoint on marker"
47mi_gdb_test "-break-insert -a bar" \
48    "\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
49    "insert tracepoint on bar"
50
51# Define an action.
52mi_gdb_test "-break-commands 3 \"collect array\" \"collect j\" \"end\" " \
53    {\^done} "set action"
54
55mi_gdb_test "-break-insert -a foo" \
56    "\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
57    "insert tracepoint on foo"
58
59# Collect 'main' to make sure no registers are collected except PC.
60mi_gdb_test "-break-commands 4 \"collect main\" \"end\" " \
61    {\^done} "set action on tracepoint 4"
62
63mi_gdb_test "-trace-start" {.*\^done} "trace start"
64mi_send_resuming_command "exec-continue" "continuing to marker"
65mi_expect_stop \
66    "breakpoint-hit" "marker" ".*" ".*" ".*" {"" "disp=\"keep\""} \
67    "stop at marker"
68mi_gdb_test "-trace-stop" {.*} "trace stop"
69
70# Save trace frames to tfile.
71set tracefile [standard_output_file ${testfile}]
72mi_gdb_test "-trace-save ${tracefile}.tf" ".*\\^done" \
73    "save tfile trace file"
74# Save trace frames to ctf.
75mi_gdb_test "-trace-save -ctf ${tracefile}.ctf" ".*\\^done" \
76    "save ctf trace file"
77
78proc test_trace_unavailable { data_source } {
79    global decimal
80
81    with_test_prefix "$data_source" {
82
83	# Test MI commands '-stack-list-locals', '-stack-list-arguments',
84	#  and '-stack-list-variables'.
85	mi_gdb_test "-trace-find frame-number 0" \
86	    ".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
87	    "-trace-find frame-number 0"
88
89	# The "print entry-values" option shouldn't affect the output of
90	# '-stack-list-locals'.
91	foreach entry_values { no only preferred if-needed both compact default } {
92	    mi_gdb_test "-gdb-set print entry-values $entry_values" {\^done} ""
93
94	    with_test_prefix "$entry_values" {
95		# Test MI command '-stack-list-locals'.
96		mi_gdb_test "-stack-list-locals --simple-values" \
97		    ".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
98		    "-stack-list-locals --simple-values"
99	    }
100	}
101
102	mi_gdb_test "-gdb-set print entry-values no" {\^done} \
103	    "-gdb-set print entry-values no"
104
105	# Test MI command '-stack-list-locals'.
106	mi_gdb_test "-stack-list-locals --simple-values" \
107	    ".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
108	    "-stack-list-locals --simple-values"
109	mi_gdb_test "-stack-list-locals --skip-unavailable --simple-values" \
110	    ".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\}\\\]" \
111	    "-stack-list-locals --skip-unavailable --simple-values"
112
113	# Test MI command '-stack-list-arguments'.
114	mi_gdb_test "-stack-list-arguments --simple-values" \
115	    ".*\\^done,stack-args=\\\[frame=\{level=\"0\",args=\\\[\{name=\"j\",type=\"int\",value=\"4\"\},\{name=\"s\",type=\"char \\\*\",value=\"<unavailable>\"\}\\\]\},.*\}.*" \
116	    "-stack-list-arguments --simple-values"
117	mi_gdb_test "-stack-list-arguments --skip-unavailable --simple-values" \
118	    ".*\\^done,stack-args=\\\[frame=\{level=\"0\",args=\\\[\{name=\"j\",type=\"int\",value=\"4\"\}\\\]\},.*\}.*" \
119	    "-stack-list-arguments --skip-unavailable --simple-values"
120
121	# Test MI command '-stack-list-variables'.
122	mi_gdb_test "-stack-list-variables --simple-values" \
123	    ".*\\^done,variables=\\\[\{name=\"j\",arg=\"1\",type=\"int\",value=\"4\"\},\{name=\"s\",arg=\"1\",type=\"char \\\*\",value=\"<unavailable>\"\},\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
124	    "-stack-list-variables --simple-values"
125	mi_gdb_test "-stack-list-variables --skip-unavailable --simple-values" \
126	    ".*\\^done,variables=\\\[\{name=\"j\",arg=\"1\",type=\"int\",value=\"4\"\},\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\}\\\]" \
127	    "-stack-list-variables --skip-unavailable --simple-values"
128
129	mi_gdb_test "-trace-find frame-number 1" \
130	    ".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"1\",frame=\{.*" \
131	    "-trace-find frame-number 1"
132
133	set pcnum -1
134	set gpr0num -1
135	if [is_amd64_regs_target] {
136	    set pcnum 16
137	    set gpr0num 0
138	} elseif [is_x86_like_target] {
139	    set pcnum 8
140	    set gpr0num 0
141	} elseif [is_aarch64_target] {
142	    set pcnum 32
143	    set gpr0num 0
144	} elseif [istarget "powerpc*-*-*"] {
145	    set pcnum 64
146	    set gpr0num 0
147	} elseif { [istarget "s390*-*-*"] } {
148	    # Strictly speaking, this is PSWA, not PC.
149	    set pcnum 1
150	    set gpr0num 2
151	} else {
152	    # Other ports support tracepoint should define the number
153	    # of its own pc register.
154	}
155
156	if { $pcnum != -1 } {
157	    global hex
158	    # Test that register 0 and PC are displayed, and register
159	    # 0 is unavailable.
160	    mi_gdb_test "-data-list-register-values x ${gpr0num} ${pcnum}" \
161		".*\\^done,register-values=\\\[\{number=\"${gpr0num}\",value=\"<unavailable>\"\},\{number=\"${pcnum}\",value=\"${hex}\"\}\\\]" \
162		"-data-list-register-values x"
163
164	    # Test that only available register PC is displayed.
165	    mi_gdb_test "-data-list-register-values --skip-unavailable x ${gpr0num} ${pcnum}" \
166		".*\\^done,register-values=\\\[\{number=\"${pcnum}\",value=\"${hex}\"\}\\\]" \
167		"-data-list-register-values --skip-unavailable x"
168	}
169
170	# Don't issue command '-trace-find none' to return from
171	# tfind mode (examining trace frames) on purpose, in order
172	# to test that GDB is able to clear its tracing-related local state
173	# in the next -target-select.
174	# mi_gdb_test "-trace-find none" ".*\\^done,found=\"0\".*" "-trace-find none"
175    }
176}
177
178test_trace_unavailable "live"
179
180# Change target to ctf if GDB supports it.
181set msg "-target-select ctf"
182send_gdb "-target-select ctf ${tracefile}.ctf\n"
183gdb_expect {
184    -re ".*\\^connected.*${mi_gdb_prompt}$" {
185	# GDB supports ctf, do the test.
186	test_trace_unavailable "ctf"
187    }
188    -re ".*\\^error,msg=\"Undefined target command.*${mi_gdb_prompt}$" {
189	# GDB doesn't support ctf, skip the test.
190	unsupported "gdb does not support ctf target"
191    }
192    -re ".*$mi_gdb_prompt$" {
193	fail "$msg"
194    }
195    timeout {
196	fail "$msg (timeout)"
197    }
198}
199
200# Change target to tfile.
201mi_gdb_test "-target-select tfile ${tracefile}.tf" ".*\\^connected.*" \
202    "-target-select tfile"
203test_trace_unavailable "tfile"
204
205mi_gdb_exit
206