1 # Copyright 2012-2023 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 if {[skip_shlib_tests]} {
20 proc test {hidden dlopen version_id_main lang} {
23 set main "print-file-var-main"
25 set suffix "-hidden$hidden-dlopen$dlopen-version_id_main$version_id_main"
27 # Normally we place different builds (C/C++) of a test into
28 # subdirectories within the test build directory, however, using
29 # gdb_load_shlib doesn't work well with this approach, so instead
30 # add a language specific suffix to the binary and library names.
32 set suffix "${suffix}_c"
34 set suffix "${suffix}_cpp"
37 set executable $main$suffix
39 set lib1 "print-file-var-lib1"
40 set lib2 "print-file-var-lib2"
42 set libobj1 [standard_output_file ${lib1}$suffix.so]
43 set libobj2 [standard_output_file ${lib2}$suffix.so]
45 set lib_opts { debug $lang }
46 lappend lib_opts "additional_flags=-DHIDDEN=$hidden"
48 if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib1}.c \
50 ${lib_opts} ] != "" } {
53 if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib2}.c \
55 ${lib_opts} ] != "" } {
59 set main_opts [list debug $lang]
60 set link_opts [list debug shlib=${libobj1}]
62 set target_libobj2 [gdb_download_shlib $libobj2]
65 lappend main_opts "additional_flags=-DSHLIB_NAME=\"$target_libobj2\""
66 lappend link_opts "shlib_load"
68 lappend link_opts "shlib=${libobj2}"
71 lappend main_opts "additional_flags=-DVERSION_ID_MAIN=$version_id_main"
73 if { [build_executable_from_specs ${main} \
82 clean_restart $executable
83 gdb_load_shlib $libobj1
84 gdb_locate_shlib $libobj2
90 # Try printing "this_version_num" qualified with the name of the file
91 # where the variables are defined. There are three global variables
92 # with that name, and some systems such as GNU/Linux merge them
93 # into one single entity, while some other systems such as Windows
94 # keep them separate. In the first situation, we have to verify
95 # that GDB does not randomly select the wrong instance, even when
96 # a specific filename is used to qualified the lookup. And in the
97 # second case, we have to verify that GDB does select the instance
98 # defined in the given filename.
100 # To avoid adding target-specific code in this testcase, the program
101 # sets three local variables named 'vm', 'v1' and 'v2' with the value of
102 # our global variables. This allows us to compare the value that
103 # GDB returns for each query against the actual value seen by
104 # the program itself.
106 # Get past the initialization of the v* variables.
109 [gdb_get_line_number "STOP" "${main}.c"]
110 gdb_test "break $main.c:$bp_location" \
111 "Breakpoint \[0-9\]+ at 0x\[0-9a-fA-F\]+: .*" \
112 "breakpoint at STOP marker"
114 gdb_test "continue" \
115 "Breakpoint \[0-9\]+, main \\(\\) at.*STOP.*" \
116 "continue to STOP marker"
118 # Now check the value of this_version_id in all of
119 # print-file-var-main.c, print-file-var-lib1.c and
120 # print-file-var-lib2.c.
122 # Compare the values of $sym1 and $sym2.
123 proc compare {sym1 sym2} {
124 with_test_prefix "sym1=$sym1,sym2=$sym2" {
125 # Done this way instead of comparing the symbols with "print $sym1
126 # == sym2" in GDB directly so that the values of the symbols end
127 # up visible in the logs, for debug purposes.
128 set vsym1 [get_integer_valueof $sym1 -1]
129 set vsym2 [get_integer_valueof $sym2 -1]
130 gdb_assert {$vsym1 == $vsym2} "$sym1 == $sym2"
134 if $version_id_main {
135 compare "'print-file-var-main.c'::this_version_id" "vm"
136 compare "this_version_id" "vm"
139 compare "'print-file-var-lib1.c'::this_version_id" "v1"
140 compare "'print-file-var-lib2.c'::this_version_id" "v2"
143 # Only test C++ if we are able. Always use C.
144 if { [skip_cplus_tests] } {
147 set lang_list {c c++}
150 foreach_with_prefix lang $lang_list {
151 foreach_with_prefix hidden {0 1} {
152 foreach_with_prefix dlopen {0 1} {
153 foreach_with_prefix version_id_main {0 1} {
154 test $hidden $dlopen $version_id_main $lang