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618f726f | 1 | # Copyright 2012-2016 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 | ||
0a251e08 YQ |
20 | proc test {type symbol} { |
21 | with_test_prefix "$type" { | |
22 | global testfile subdir srcdir gdb_prompt | |
23 | ||
24 | set srcfile_type ${srcdir}/${subdir}/${testfile}-${type}.c | |
25 | ||
26 | # no threads | |
27 | ||
28 | with_test_prefix "singlethreaded" { | |
29 | set executable ${testfile}-${type}-st | |
30 | set srcfile_main ${testfile}-st.c | |
31 | if {[build_executable $testfile.exp $executable \ | |
32 | [list $srcfile_main ${testfile}-${type}.c] \ | |
33 | [list debug additional_flags=-D$symbol]] == -1} { | |
34 | return -1 | |
35 | } | |
36 | ||
37 | clean_restart $executable | |
38 | ||
39 | if [target_info exists gdb,no_hardware_watchpoints] { | |
40 | # The software watchpoint functionality is in GDB an unrelated test. | |
41 | gdb_test_no_output "set can-use-hw-watchpoints 0" | |
42 | } | |
43 | ||
44 | gdb_test "show detach-on-fork" "Whether gdb will detach the child of a fork is on\\." | |
45 | gdb_test_no_output "set follow-fork-mode $type" | |
46 | gdb_test "show follow-fork-mode" "Debugger response to a program call of fork or vfork is \"$type\"\\." | |
47 | # Testcase uses it for the `follow-fork-mode child' type. | |
48 | gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" | |
49 | ||
50 | if ![runto_main] { | |
51 | return | |
52 | } | |
53 | ||
54 | gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint" | |
55 | ||
56 | # It is never hit but it should not be left over in the fork()ed-off child. | |
57 | if [skip_hw_breakpoint_tests] { | |
58 | set hbreak "break" | |
59 | } else { | |
60 | set hbreak "hbreak" | |
61 | } | |
62 | gdb_test "$hbreak marker" | |
63 | ||
64 | gdb_breakpoint "mark_exit" | |
65 | ||
66 | gdb_test "continue" \ | |
67 | "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" | |
68 | gdb_test "continue" \ | |
69 | "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*forkoff *\\(1\\).*" "watchpoints work" | |
70 | gdb_test "continue" \ | |
71 | "reakpoint \[0-9\]+, marker.*" "breakpoint after the first fork" | |
72 | gdb_test "continue" \ | |
73 | "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*forkoff *\\(2\\).*" "watchpoint after the first fork" | |
74 | gdb_test "continue" \ | |
75 | "reakpoint \[0-9\]+, marker.*" "breakpoint after the second fork" | |
76 | gdb_test "continue" \ | |
77 | "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*mark_exit \\(\\);" "watchpoint after the second fork" | |
78 | gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish" | |
aed555c9 | 79 | } |
0efbbabc | 80 | |
0a251e08 | 81 | # threads |
aed555c9 PA |
82 | |
83 | if [target_info exists gdb,no_hardware_watchpoints] { | |
0a251e08 | 84 | # Watchpoint hits would get detected in unexpected threads. |
aed555c9 PA |
85 | return |
86 | } | |
aed555c9 | 87 | |
0a251e08 YQ |
88 | with_test_prefix "multithreaded" { |
89 | set executable ${testfile}-${type}-mt | |
90 | set srcfile_main ${srcdir}/${subdir}/${testfile}-mt.c | |
91 | if { [gdb_compile_pthreads "${srcfile_main} ${srcfile_type}" [standard_output_file ${executable}] executable [list debug "additional_flags=-D$symbol -DTHREAD"]] != "" } { | |
92 | untested ${testfile}.exp | |
93 | return | |
94 | } | |
95 | clean_restart $executable | |
96 | ||
97 | gdb_test_no_output "set follow-fork-mode $type" | |
98 | # Testcase uses it for the `follow-fork-mode child' type. | |
99 | gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" | |
100 | ||
101 | if ![runto_main] { | |
102 | return | |
103 | } | |
104 | ||
105 | gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint" | |
106 | ||
107 | # It should not be left over in the fork()ed-off child. | |
108 | gdb_test "$hbreak marker" {reakpoint [0-9]+.*} | |
109 | ||
110 | gdb_breakpoint "mark_exit" | |
111 | ||
112 | gdb_test "continue" \ | |
113 | "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" | |
114 | gdb_test "continue" \ | |
115 | "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*validity-first.*" "singlethread watchpoints work" | |
116 | gdb_test "continue" \ | |
117 | "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*validity-thread-A.*" "multithreaded watchpoints work at A" | |
118 | gdb_test "continue" \ | |
119 | "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*validity-thread-B.*" "multithreaded watchpoints work at B" | |
120 | gdb_test "continue" \ | |
121 | "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the first fork" | |
122 | gdb_test "continue" \ | |
123 | "atchpoint \[0-9\]+: var.*Old value = 3.*New value = 4.*after-fork1-A.*" "watchpoint A after the first fork" | |
124 | gdb_test "continue" \ | |
125 | "atchpoint \[0-9\]+: var.*Old value = 4.*New value = 5.*after-fork1-B.*" "watchpoint B after the first fork" | |
126 | gdb_test "continue" \ | |
127 | "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the second fork" | |
128 | gdb_test "continue" \ | |
129 | "atchpoint \[0-9\]+: var.*Old value = 5.*New value = 6.*after-fork2-A.*" "watchpoint A after the second fork" | |
130 | gdb_test "continue" \ | |
131 | "atchpoint \[0-9\]+: var.*Old value = 6.*New value = 7.*after-fork2-B.*" "watchpoint B after the second fork" | |
132 | gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish" | |
aed555c9 | 133 | } |
4403d8e9 | 134 | } |
0a251e08 | 135 | } |
4403d8e9 JK |
136 | |
137 | test parent FOLLOW_PARENT | |
138 | ||
139 | # Only GNU/Linux is known to support `set follow-fork-mode child'. | |
140 | if [istarget "*-*-linux*"] { | |
141 | test child FOLLOW_CHILD | |
142 | } else { | |
143 | untested "${testfile}: child" | |
144 | } |