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32d0add0 | 1 | # Copyright 2009-2015 Free Software Foundation, Inc. |
a3247a22 PP |
2 | # This program is free software; you can redistribute it and/or modify |
3 | # it under the terms of the GNU General Public License as published by | |
4 | # the Free Software Foundation; either version 3 of the License, or | |
5 | # (at your option) any later version. | |
6 | # | |
7 | # This program is distributed in the hope that it will be useful, | |
8 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | # GNU General Public License for more details. | |
11 | # | |
12 | # You should have received a copy of the GNU General Public License | |
13 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
14 | # | |
15 | # Contributed by Paul Pluzhnikov <ppluzhnikov@google.com> | |
16 | # | |
17 | ||
18 | # This test case verifies that if a display is active on a variable | |
19 | # which belongs in a shared library, and that shared library is | |
20 | # reloaded (e.g. due to re-execution of the program), GDB will continue | |
21 | # to display it (gdb-6.8 crashed under this scenario). | |
22 | ||
23 | # Also test that a display of variable which is currently present in | |
24 | # a shared library, but disappears before re-run, doesn't cause GDB | |
25 | # difficulties, and that it continues to display other variables. | |
26 | ||
27 | # Finally, test that displays which refer to main executable | |
28 | # (and thus aren't affected by shared library unloading) are not | |
29 | # disabled prematurely. | |
30 | ||
d24948ac | 31 | if { [skip_shlib_tests] || [is_remote target] } { |
a3247a22 PP |
32 | return 0 |
33 | } | |
34 | ||
35 | # Library file. | |
36 | set libname "solib-display-lib" | |
37 | set srcfile_lib ${srcdir}/${subdir}/${libname}.c | |
0ab77f5f | 38 | set binfile_lib [standard_output_file ${libname}.so] |
c0201579 | 39 | set lib_flags {} |
a3247a22 PP |
40 | # Binary file. |
41 | set testfile "solib-display-main" | |
42 | set srcfile ${srcdir}/${subdir}/${testfile}.c | |
4d836c09 | 43 | set executable ${testfile} |
0ab77f5f | 44 | set binfile [standard_output_file ${executable}] |
a3247a22 PP |
45 | set bin_flags [list debug shlib=${binfile_lib}] |
46 | ||
4c93b1db | 47 | if [get_compiler_info] { |
a3247a22 PP |
48 | return -1 |
49 | } | |
50 | ||
c0201579 | 51 | # SEP must be last for the possible `unsupported' error path. |
0f4d39d5 | 52 | foreach libsepdebug {NO IN SEP} { with_test_prefix "$libsepdebug" { |
c0201579 JK |
53 | |
54 | set sep_lib_flags $lib_flags | |
55 | if {$libsepdebug != "NO"} { | |
56 | lappend sep_lib_flags {debug} | |
57 | } | |
58 | if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $sep_lib_flags] != "" | |
59 | || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } { | |
60 | untested "Could not compile $binfile_lib or $binfile." | |
61 | return -1 | |
62 | } | |
63 | ||
64 | if {$libsepdebug == "SEP"} { | |
65 | if {[gdb_gnu_strip_debug $binfile_lib] != 0} { | |
66 | unsupported "Could not split debug of $binfile_lib." | |
67 | return | |
68 | } else { | |
69 | pass "split solib" | |
70 | } | |
71 | } | |
72 | ||
73 | clean_restart $executable | |
74 | ||
75 | if ![runto_main] then { | |
76 | fail "Can't run to main" | |
77 | return 0 | |
78 | } | |
79 | ||
80 | gdb_test "display a_global" "1: a_global = 41" | |
81 | gdb_test "display b_global" "2: b_global = 42" | |
82 | gdb_test "display c_global" "3: c_global = 43" | |
83 | ||
84 | if { [gdb_start_cmd] < 0 } { | |
85 | fail "Can't run to main (2)" | |
86 | continue | |
87 | } | |
88 | ||
89 | gdb_test "" "3: c_global = 43\\r\\n2: b_global = 42\\r\\n1: a_global = 41" "after rerun" | |
90 | ||
91 | # Now rebuild the library without b_global | |
92 | if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} \ | |
93 | "$sep_lib_flags additional_flags=-DNO_B_GLOBAL"] != ""} { | |
94 | fail "Can't rebuild $binfile_lib" | |
95 | } | |
96 | ||
97 | if {$libsepdebug == "SEP"} { | |
98 | set test "split solib second time" | |
99 | if {[gdb_gnu_strip_debug $binfile_lib] != 0} { | |
100 | fail $test | |
101 | continue | |
102 | } else { | |
103 | pass $test | |
104 | } | |
105 | } | |
106 | ||
107 | if { [gdb_start_cmd] < 0 } { | |
108 | fail "Can't run to main (3)" | |
109 | continue | |
110 | } | |
111 | ||
112 | gdb_test "" "3: c_global = 43\\r\\nwarning: .*b_global.*\\r\\n1: a_global = 41" "after rerun (2)" | |
113 | ||
114 | # Now verify that displays which are not in the shared library | |
115 | # are not cleared permaturely. | |
116 | ||
117 | gdb_test "break [gdb_get_line_number "break here" ${testfile}.c]" \ | |
118 | ".*Breakpoint.* at .*" | |
119 | ||
120 | gdb_test "continue" | |
121 | gdb_test "display main_global" "4: main_global = 44" | |
122 | gdb_test "display a_local" "5: a_local = 45" | |
123 | gdb_test "display a_static" "6: a_static = 46" | |
124 | ||
125 | if { [gdb_start_cmd] < 0 } { | |
126 | fail "Can't run to main (4)" | |
127 | continue | |
128 | } | |
129 | ||
130 | gdb_test "" "6: a_static = 46\\r\\n4: main_global = 44\\r\\n.*" | |
131 | gdb_test "break [gdb_get_line_number "break here" ${testfile}.c]" \ | |
132 | ".*Breakpoint.* at .*" | |
133 | gdb_test "continue" "6: a_static = 46\\r\\n5: a_local = 45\\r\\n4: main_global = 44\\r\\n.*" | |
6a5870ce | 134 | }} |