1# Copyright 2008-2020 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
16# This file is part of the GDB testsuite.  It tests 'until' and
17# 'advance' in precord logfile.
18
19# This test suitable only for process record-replay
20if ![supports_process_record] {
21    return
22}
23
24standard_testfile until-reverse.c ur1.c
25set precsave [standard_output_file until.precsave]
26
27if { [prepare_for_testing "failed to prepare" $testfile \
28	  [list $srcfile $srcfile2]] } {
29    return -1
30}
31
32set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]
33set bp_location7  [gdb_get_line_number "set breakpoint 7 here"]
34set bp_location8  [gdb_get_line_number "set breakpoint 8 here" "$srcfile2"]
35set bp_location19 [gdb_get_line_number "set breakpoint 19 here"]
36set bp_location20 [gdb_get_line_number "set breakpoint 20 here"]
37set bp_location21 [gdb_get_line_number "set breakpoint 21 here"]
38
39runto main
40
41if [supports_process_record] {
42    # Activate process record/replay
43    gdb_test_no_output "record" "turn on process record"
44}
45
46set end_of_main [gdb_get_line_number "set breakpoint 10a here" ]
47gdb_test "break $end_of_main" \
48    "Breakpoint $decimal at .*$srcfile, line $end_of_main\." \
49    "breakpoint at end of main"
50
51# This can take awhile.
52with_timeout_factor 20 {
53    gdb_test_multiple "continue" "run to end of main" {
54	-wrap -re "Breakpoint .* set breakpoint 10a here .*" {
55	    pass $gdb_test_name
56	}
57	-wrap -re "Process record does not support instruction 0xfae64 at.*" {
58	    kfail "gdb/25038" $gdb_test_name
59	    return -1
60	}
61    }
62}
63
64# So can this, against gdbserver, for example.
65
66with_timeout_factor 10 {
67    gdb_test "record save $precsave" \
68	"Saved core file $precsave with execution log\."  \
69	"save process recfile"
70}
71
72gdb_test "kill" "" "kill process, prepare to debug log file" \
73    "Kill the program being debugged\\? \\(y or n\\) " "y"
74
75gdb_test "record restore $precsave" \
76    "Restored records from core file .*" \
77    "reload core file"
78
79# Verify that plain vanilla "until <location>" works.
80#
81gdb_test "until $bp_location1" \
82    "main .* at .*:$bp_location1.*" \
83    "until line number"
84
85# Advance up to factorial, outer invocation
86#
87gdb_test "advance factorial" \
88    "factorial .value=6..*$srcfile:$bp_location7.*" \
89    "advance to factorial"
90
91# At this point, 'until' should continue the inferior up to when all the
92# inner invocations of factorial() are completed and we are back at this
93# frame.
94#
95gdb_test "until $bp_location19" \
96    "factorial .value=720.*${srcfile}:$bp_location19.*" \
97    "until factorial, recursive function"
98
99# Finish out to main scope
100#
101gdb_test "finish" \
102    "main .*$srcfile:.*" \
103    "finish to main"
104
105# Advance to a function called by main (marker2)
106#
107gdb_test "advance marker2" \
108    "marker2 .a=43.*$srcfile2:$bp_location8.*" \
109    "advance to marker2"
110
111# Now issue an until with another function, not called by the current
112# frame, as argument. This should not work, i.e. the program should
113# stop at main, the caller, where we put the 'guard' breakpoint.
114#
115set test_msg "until func, not called by current frame"
116gdb_test_multiple "until marker3" "$test_msg" {
117    -re "main .*at .*${srcfile}:$bp_location20.*$gdb_prompt $" {
118	pass "$test_msg"
119    }
120    -re "main .*at .*${srcfile}:$bp_location21.*$gdb_prompt $" {
121	pass "$test_msg"
122    }
123}
124
125###
126###
127###
128
129# Set reverse execution direction
130
131gdb_test_no_output "set exec-dir reverse" "set reverse execution"
132
133#
134# We should now be at main, after the return from marker2.
135# "Advance" backward into marker2.
136#
137
138gdb_test "advance marker2" \
139    "marker2 .a=43.*$srcfile2:$bp_location8.*" \
140    "reverse-advance to marker2"
141
142# Finish out to main scope (backward)
143
144gdb_test "finish" \
145    " in main .*$srcfile:$bp_location20.*" \
146    "reverse-finish from marker2"
147
148# Advance backward to last line of factorial (outer invocation)
149
150gdb_test "advance $bp_location19" \
151    "factorial .value=720.*${srcfile}:$bp_location19.*" \
152    "reverse-advance to final return of factorial"
153
154# Now do "until" across the recursive calls,
155# ending up in the same frame where we are now.
156
157gdb_test "until $bp_location7" \
158    "factorial .value=6..*$srcfile:$bp_location7.*" \
159    "reverse-until to entry of factorial"
160