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3666a048 | 1 | # Copyright 2012-2021 Free Software Foundation, Inc. |
4403d8e9 JK |
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 | # Test case for forgotten hw-watchpoints after fork()-off of a process. | |
17 | ||
18 | set testfile watchpoint-fork | |
19 | ||
ee2a6fc6 TV |
20 | # Set DEBUG to 0 or 1 in sources |
21 | set debug 0 | |
22 | ||
0a251e08 | 23 | proc test {type symbol} { |
ee2a6fc6 | 24 | global debug |
0a251e08 YQ |
25 | with_test_prefix "$type" { |
26 | global testfile subdir srcdir gdb_prompt | |
27 | ||
28 | set srcfile_type ${srcdir}/${subdir}/${testfile}-${type}.c | |
29 | ||
30 | # no threads | |
31 | ||
32 | with_test_prefix "singlethreaded" { | |
33 | set executable ${testfile}-${type}-st | |
34 | set srcfile_main ${testfile}-st.c | |
35 | if {[build_executable $testfile.exp $executable \ | |
36 | [list $srcfile_main ${testfile}-${type}.c] \ | |
ee2a6fc6 TV |
37 | [list debug additional_flags=-D$symbol \ |
38 | additional_flags=-DDEBUG=$debug]] == -1} { | |
0a251e08 YQ |
39 | return -1 |
40 | } | |
41 | ||
42 | clean_restart $executable | |
43 | ||
44 | if [target_info exists gdb,no_hardware_watchpoints] { | |
45 | # The software watchpoint functionality is in GDB an unrelated test. | |
46 | gdb_test_no_output "set can-use-hw-watchpoints 0" | |
f489207e SL |
47 | # Software watchpoints can be quite slow on remote targets |
48 | # on this test because it ends up single-stepping through | |
49 | # code to initialize dynamic libraries, etc. | |
50 | set factor 20 | |
51 | } else { | |
52 | set factor 1 | |
0a251e08 YQ |
53 | } |
54 | ||
55 | gdb_test "show detach-on-fork" "Whether gdb will detach the child of a fork is on\\." | |
56 | gdb_test_no_output "set follow-fork-mode $type" | |
57 | gdb_test "show follow-fork-mode" "Debugger response to a program call of fork or vfork is \"$type\"\\." | |
58 | # Testcase uses it for the `follow-fork-mode child' type. | |
59 | gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" | |
60 | ||
61 | if ![runto_main] { | |
62 | return | |
63 | } | |
64 | ||
cdc7edd7 | 65 | gdb_test "watch var" "atchpoint \[0-9\]+: var" "set the watchpoint" |
0a251e08 YQ |
66 | |
67 | # It is never hit but it should not be left over in the fork()ed-off child. | |
68 | if [skip_hw_breakpoint_tests] { | |
69 | set hbreak "break" | |
70 | } else { | |
71 | set hbreak "hbreak" | |
72 | } | |
73 | gdb_test "$hbreak marker" | |
74 | ||
75 | gdb_breakpoint "mark_exit" | |
76 | ||
f489207e SL |
77 | with_timeout_factor $factor { |
78 | gdb_test "continue" \ | |
79 | "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" | |
80 | gdb_test "continue" \ | |
81 | "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*forkoff *\\(1\\).*" "watchpoints work" | |
82 | gdb_test "continue" \ | |
83 | "reakpoint \[0-9\]+, marker.*" "breakpoint after the first fork" | |
84 | gdb_test "continue" \ | |
85 | "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*forkoff *\\(2\\).*" "watchpoint after the first fork" | |
86 | gdb_test "continue" \ | |
87 | "reakpoint \[0-9\]+, marker.*" "breakpoint after the second fork" | |
88 | gdb_test "continue" \ | |
89 | "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*mark_exit \\(\\);" "watchpoint after the second fork" | |
90 | gdb_test "continue" "Continuing\\..*\r\n(Thread .* hit )?Breakpoint \[0-9\]+, mark_exit .*" "finish" | |
91 | } | |
aed555c9 | 92 | } |
0efbbabc | 93 | |
0a251e08 | 94 | # threads |
aed555c9 PA |
95 | |
96 | if [target_info exists gdb,no_hardware_watchpoints] { | |
0a251e08 | 97 | # Watchpoint hits would get detected in unexpected threads. |
aed555c9 PA |
98 | return |
99 | } | |
aed555c9 | 100 | |
0a251e08 YQ |
101 | with_test_prefix "multithreaded" { |
102 | set executable ${testfile}-${type}-mt | |
103 | set srcfile_main ${srcdir}/${subdir}/${testfile}-mt.c | |
ee2a6fc6 TV |
104 | if { [gdb_compile_pthreads "${srcfile_main} ${srcfile_type}" \ |
105 | [standard_output_file ${executable}] executable \ | |
106 | [list debug "additional_flags=-D$symbol" \ | |
107 | "additional_flags=-DDEBUG=$debug" \ | |
108 | "-DTHREAD"]] != "" } { | |
5b362f04 | 109 | untested "failed to compile" |
0a251e08 YQ |
110 | return |
111 | } | |
112 | clean_restart $executable | |
113 | ||
114 | gdb_test_no_output "set follow-fork-mode $type" | |
115 | # Testcase uses it for the `follow-fork-mode child' type. | |
116 | gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" | |
117 | ||
118 | if ![runto_main] { | |
119 | return | |
120 | } | |
121 | ||
cdc7edd7 | 122 | gdb_test "watch var" "atchpoint \[0-9\]+: var" "set the watchpoint" |
0a251e08 YQ |
123 | |
124 | # It should not be left over in the fork()ed-off child. | |
125 | gdb_test "$hbreak marker" {reakpoint [0-9]+.*} | |
126 | ||
127 | gdb_breakpoint "mark_exit" | |
128 | ||
129 | gdb_test "continue" \ | |
130 | "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" | |
131 | gdb_test "continue" \ | |
132 | "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*validity-first.*" "singlethread watchpoints work" | |
133 | gdb_test "continue" \ | |
134 | "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*validity-thread-A.*" "multithreaded watchpoints work at A" | |
135 | gdb_test "continue" \ | |
136 | "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*validity-thread-B.*" "multithreaded watchpoints work at B" | |
137 | gdb_test "continue" \ | |
138 | "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the first fork" | |
139 | gdb_test "continue" \ | |
140 | "atchpoint \[0-9\]+: var.*Old value = 3.*New value = 4.*after-fork1-A.*" "watchpoint A after the first fork" | |
141 | gdb_test "continue" \ | |
142 | "atchpoint \[0-9\]+: var.*Old value = 4.*New value = 5.*after-fork1-B.*" "watchpoint B after the first fork" | |
143 | gdb_test "continue" \ | |
144 | "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the second fork" | |
145 | gdb_test "continue" \ | |
146 | "atchpoint \[0-9\]+: var.*Old value = 5.*New value = 6.*after-fork2-A.*" "watchpoint A after the second fork" | |
147 | gdb_test "continue" \ | |
148 | "atchpoint \[0-9\]+: var.*Old value = 6.*New value = 7.*after-fork2-B.*" "watchpoint B after the second fork" | |
f303dbd6 | 149 | gdb_test "continue" "Continuing\\..*\r\nThread .* hit Breakpoint \[0-9\]+, mark_exit .*" "finish" |
aed555c9 | 150 | } |
4403d8e9 | 151 | } |
0a251e08 | 152 | } |
4403d8e9 JK |
153 | |
154 | test parent FOLLOW_PARENT | |
155 | ||
156 | # Only GNU/Linux is known to support `set follow-fork-mode child'. | |
157 | if [istarget "*-*-linux*"] { | |
158 | test child FOLLOW_CHILD | |
159 | } else { | |
160 | untested "${testfile}: child" | |
161 | } |