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9078e690 | 1 | # Copyright 2005, 2006 Free Software Foundation, Inc. |
099ac3dd MS |
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 2 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, write to the Free Software | |
9078e690 | 15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
099ac3dd MS |
16 | |
17 | if $tracelevel then { | |
18 | strace $tracelevel | |
19 | } | |
20 | ||
21 | if { ![isnative] } then { | |
22 | continue | |
23 | } | |
24 | ||
25 | # Until "set follow-fork-mode" and "catch fork" are implemented on | |
26 | # other targets... | |
27 | # | |
28 | if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-*-linux*"]} then { | |
29 | continue | |
30 | } | |
31 | ||
32 | set prms_id 0 | |
33 | set bug_id 0 | |
34 | ||
35 | set testfile "multi-forks" | |
36 | set srcfile ${testfile}.c | |
37 | set binfile ${objdir}/${subdir}/${testfile} | |
38 | ||
39 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
40 | gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." | |
41 | } | |
42 | ||
43 | # Start with a fresh gdb | |
44 | ||
45 | gdb_exit | |
46 | gdb_start | |
47 | gdb_reinitialize_dir $srcdir/$subdir | |
48 | gdb_load ${binfile} | |
49 | ||
50 | global gdb_prompt | |
51 | ||
52 | # This is a test of gdb's ability to follow the parent, child or both | |
53 | # parent and child of multiple Unix fork() system calls. | |
54 | # | |
55 | ||
56 | # Inferior program calls fork 4 times. Since each fork | |
57 | # calls fork 4 times, there will be 16 forks. Each fork | |
58 | # saves the return values of its own 4 fork calls. | |
59 | ||
60 | # First set gdb to follow the child. | |
61 | # The result should be that each of the 4 forks returns zero. | |
62 | ||
63 | runto_main | |
64 | set exit_bp_loc [gdb_get_line_number "Set exit breakpoint here."] | |
65 | gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit" | |
66 | gdb_test "set follow child" "" "" | |
67 | ||
68 | send_gdb "continue\n" | |
69 | gdb_expect { | |
b8db102d | 70 | -re ".*Break.* main .*$gdb_prompt.*$" {} |
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71 | -re ".*$gdb_prompt $" {fail "run to exit 1"} |
72 | default {fail "run to exit 1 (timeout)"} | |
73 | } | |
74 | ||
75 | gdb_test "print pids" "\\$.* = \\{0, 0, 0, 0\\}.*" "follow child, print pids" | |
76 | ||
77 | # Now set gdb to follow the parent. | |
78 | # Result should be that none of the 4 forks returns zero. | |
79 | ||
80 | delete_breakpoints | |
81 | runto_main | |
82 | gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit" | |
83 | gdb_test "set follow parent" "" "" | |
84 | ||
85 | send_gdb "continue\n" | |
86 | gdb_expect { | |
b8db102d | 87 | -re ".*Break.* main .*$gdb_prompt.*$" {} |
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88 | -re ".*$gdb_prompt $" {fail "run to exit 2"} |
89 | default {fail "run to exit 2 (timeout)"} | |
90 | } | |
91 | ||
92 | gdb_test "print pids\[0\]==0 || pids\[1\]==0 || pids\[2\]==0 || pids\[3\]==0" \ | |
93 | " = 0" "follow parent, print pids" | |
94 | ||
95 | # | |
96 | # Now test with detach-on-fork off. | |
97 | # | |
98 | ||
99 | runto_main | |
100 | gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "" | |
101 | ||
102 | gdb_test "help set detach-on-fork" "whether gdb will detach the child.*" \ | |
103 | "help set detach" | |
104 | ||
105 | gdb_test "show detach-on-fork" "on." "show detach default on" | |
106 | ||
107 | gdb_test "set detach off" "" "set detach off" | |
108 | ||
109 | # | |
110 | # We will now run every fork up to the exit bp, | |
111 | # eventually winding up with 16 forks. | |
112 | # | |
113 | ||
9078e690 DJ |
114 | for {set i 1} {$i <= 15} {incr i} { |
115 | gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit $i" | |
116 | gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork $i" | |
117 | gdb_test "restart $i" "(_dl_sysinfo_int80|fork).*" "restart $i" | |
118 | } | |
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119 | |
120 | gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 16" | |
121 | gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 16" | |
122 | gdb_test "restart 0" " main .*" "restart final" | |
123 | ||
124 | # | |
125 | # Now we should examine all the pids. | |
126 | # | |
127 | ||
128 | # | |
129 | # Test detach-fork | |
130 | # | |
131 | ||
132 | # [assumes we're at #0] | |
133 | gdb_test "detach-fork 1" "Detached .*" "Detach 1" | |
134 | gdb_test "detach-fork 2" "Detached .*" "Detach 2" | |
135 | gdb_test "detach-fork 3" "Detached .*" "Detach 3" | |
136 | gdb_test "detach-fork 4" "Detached .*" "Detach 4" | |
137 | ||
138 | # | |
b8db102d | 139 | # Test delete fork |
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140 | # |
141 | ||
b8db102d MS |
142 | gdb_test "delete fork 5" "" "Delete 5" |
143 | gdb_test "info fork 5" "No fork number 5." "Did delete 5" | |
144 | gdb_test "delete fork 6" "" "Delete 6" | |
145 | gdb_test "info fork 6" "No fork number 6." "Did delete 6" | |
146 | gdb_test "delete fork 7" "" "Delete 7" | |
147 | gdb_test "info fork 7" "No fork number 7." "Did delete 7" | |
148 | gdb_test "delete fork 8" "" "Delete 8" | |
149 | gdb_test "info fork 8" "No fork number 8." "Did delete 8" | |
150 | gdb_test "delete fork 9" "" "Delete 9" | |
151 | gdb_test "info fork 9" "No fork number 9." "Did delete 9" | |
152 | gdb_test "delete fork 10" "" "Delete 10" | |
153 | gdb_test "info fork 10" "No fork number 10." "Did delete 10" | |
154 | gdb_test "delete fork 11" "" "Delete 11" | |
155 | gdb_test "info fork 11" "No fork number 11." "Did delete 11" | |
156 | gdb_test "delete fork 12" "" "Delete 12" | |
157 | gdb_test "info fork 12" "No fork number 12." "Did delete 12" | |
158 | gdb_test "delete fork 13" "" "Delete 13" | |
159 | gdb_test "info fork 13" "No fork number 13." "Did delete 13" | |
160 | gdb_test "delete fork 14" "" "Delete 14" | |
161 | gdb_test "info fork 14" "No fork number 14." "Did delete 14" | |
162 | gdb_test "delete fork 15" "" "Delete 15" | |
163 | gdb_test "info fork 15" "No fork number 15." "Did delete 15" | |
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164 | |
165 | return 0 | |
166 |