1 # Copyright 2007-2023 Free Software Foundation, Inc.
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.
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.
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/>.
16 # Test that varobj are invalidated after the shlib they point to goes
20 load_lib mi-support.exp
23 if { [skip_shlib_tests] } {
27 standard_testfile .c -lib.c
28 set shlib_path [standard_output_file ${testfile}-lib.so]
30 if { [gdb_compile_shlib $srcdir/$subdir/$srcfile2 $shlib_path {debug}] != "" } {
31 untested "failed to compile"
36 set opts [list shlib_load debug additional_flags=-DSHLIB_PATH="${shlib_path}"]
37 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
38 untested "failed to compile"
42 proc do_test { separate_debuginfo } {
43 if { [mi_clean_restart] } {
44 unsupported "failed to start GDB"
48 # Start the process once and create varobjs referencing the loaded objfiles.
49 with_test_prefix "setup" {
50 mi_load_shlibs $::shlib_path
51 if { $separate_debuginfo } {
52 mi_load_shlibs ${::shlib_path}.debug
55 mi_gdb_reinitialize_dir $::srcdir/$::subdir
56 mi_gdb_load $::binfile
60 mi_create_varobj global_var global_var "create global global_var"
61 mi_create_varobj global_shlib_var global_shlib_var "create global gloal_shlib_var"
62 mi_create_floating_varobj floating_local local_var "create floating local_var"
64 # Advance to a point where the shlib's objfile have been deleted.
65 mi_continue_to "no_varobj_in_scope"
68 with_test_prefix "after objfile deleted" {
69 # The global shlib var was invalidated when the objfile got unloaded.
70 mi_gdb_test "-var-update global_shlib_var" \
71 "\\^done,changelist=\\\[\{name=\"global_shlib_var\",in_scope=\"invalid\",has_more=\"0\"\}\]" \
72 "global_shlib_var invalidated"
74 # The floating var is still valid but not in scope.
75 mi_gdb_test "-var-update floating_local" \
76 "\\^done,changelist=\\\[{name=\"floating_local\",in_scope=\"false\",type_changed=\"false\",has_more=\"0\"}\\\]" \
77 "floating_local still valid but not in scope"
79 mi_gdb_test "-var-update global_var" \
80 "\\^done,changelist=\\\[\\\]" \
81 "global_var still valid"
83 # The varobj can be re-evaluated if the expression is valid in the current
85 mi_continue_to "floating_varobj_in_scope"
86 mi_gdb_test "-var-update floating_local" \
87 "\\^done,changelist=\\\[{name=\"floating_local\",in_scope=\"true\",type_changed=\"true\",new_type=\"int\",new_num_children=\"0\",has_more=\"0\"}\\\]" \
88 "floating_local in scope with new type and value"
91 # Reload the entire process
92 with_test_prefix "restart process" {
94 mi_gdb_load ${::binfile}
98 with_test_prefix "in new process" {
99 # When reloading the symbol file, only the var for the global in the main
100 # executable is re-created.
101 mi_gdb_test "-var-update global_var" \
102 "\\^done,changelist=\\\[\\\]" \
103 "global_var recreated"
104 mi_gdb_test "-var-update global_shlib_var" \
105 "\\^done,changelist=\\\[{name=\"global_shlib_var\",in_scope=\"invalid\",has_more=\"0\"}\\\]" \
106 "global_shlib_var invalid"
108 # Floating varobj should still be valid, but out of scope at the moment.
109 mi_gdb_test "-var-update floating_local" \
110 "\\^done,changelist=\\\[{name=\"floating_local\",in_scope=\"false\",type_changed=\"false\",has_more=\"0\"}\\\]" \
111 "floating_local still valid but not in scope"
113 # Continue inside foo
114 mi_gdb_test "299-break-insert -f -t foo" \
115 "&\"Function \\\\\"foo\\\\\" not defined.\\\\n\"\r\n299\\^done,[mi_make_breakpoint_pending -type breakpoint -disp del -pending foo]"
116 mi_send_resuming_command "exec-continue" "continue to foo"
117 mi_expect_stop "breakpoint-hit" foo ".*" ".*" "\[0-9\]+" { "" "disp=\"del\"" } "arrived at foo"
119 # Floating varobj is still valid, and now in scope.
120 mi_gdb_test "-var-update floating_local" \
121 "\\^done,changelist=\\\[{name=\"floating_local\",in_scope=\"true\",type_changed=\"true\",new_type=\"struct bar\",new_num_children=\"2\",has_more=\"0\"}\\\]" \
122 "floating_local still valid and in scope"
124 # The var for the global in the shlib stays invalid even after reloading the shlib.
125 mi_gdb_test "-var-update global_shlib_var" \
126 "\\^done,changelist=\\\[{name=\"global_shlib_var\",in_scope=\"invalid\",has_more=\"0\"}\\\]" \
127 "global_shlib_var invalid after shlib loaded"
131 proc_with_prefix local_not_invalidated { separate_debuginfo } {
132 if { [mi_clean_restart] } {
133 unsupported "failed to start GDB"
137 # Start the process once and create varobjs referencing the loaded objfiles.
138 with_test_prefix "setup" {
139 mi_load_shlibs $::shlib_path
140 if { $separate_debuginfo } {
141 mi_load_shlibs ${::shlib_path}.debug
144 mi_gdb_reinitialize_dir $::srcdir/$::subdir
145 mi_gdb_load $::binfile
147 mi_runto foo -pending
149 mi_create_varobj local_var local_var "create local varobj"
152 # At this point we are stopped in the shared library. If we reload symbols
153 # for the main binary, symbols for the shared library remain valid. A
154 # varobj tracking variables in the scope of the shared library only should
155 # not be invalidated.
156 mi_gdb_load ${::binfile}
157 mi_gdb_test "-var-update local_var" \
158 "\\^done,changelist=\\\[\\\]" \
159 "local_var preserved"
162 foreach_with_prefix separate_debuginfo {0 1} {
163 if { $separate_debuginfo } {
164 gdb_gnu_strip_debug $::shlib_path
167 do_test $separate_debuginfo
168 local_not_invalidated $separate_debuginfo