1 # Copyright 2013-2019 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 solib-search-path, and in the case of solib-svr4.c whether l_addr_p
17 # is properly reset when the path is changed.
19 if {[is_remote target] || [skip_shlib_tests]} {
20 untested "skipping remote target and shared library tests"
24 # This is required by gdb_compile_shlib.
25 if {[get_compiler_info]} {
26 warning "Could not get compiler info"
27 untested "no compiler info"
31 # Build "wrong" and "right" versions of the libraries in separate directories.
32 set wrong_lib_subdir "solib-search-wrong"
33 set right_lib_subdir "solib-search-right"
36 set libname1 "solib-search-lib1"
37 set srcfile1_lib ${srcdir}/${subdir}/${libname1}.c
38 set wrong_binfile1_lib \
39 [standard_output_file ${wrong_lib_subdir}/${libname1}.so]
40 set right_binfile1_lib \
41 [standard_output_file ${right_lib_subdir}/${libname1}.so]
42 # Second library file.
43 set libname2 "solib-search-lib2"
44 set srcfile2_lib ${srcdir}/${subdir}/${libname2}.c
45 set wrong_binfile2_lib \
46 [standard_output_file ${wrong_lib_subdir}/${libname2}.so]
47 set right_binfile2_lib \
48 [standard_output_file ${right_lib_subdir}/${libname2}.so]
49 # Link with the library that lives here.
50 # This is so that we can replace what gdb sees with the wrong copy,
51 # and then tell gdb to use the right copy that lives someplace else.
52 set binfile1_lib [standard_output_file ${libname1}.so]
53 set binfile2_lib [standard_output_file ${libname2}.so]
55 set lib_flags [list debug ldflags=-Wl,-Bsymbolic]
56 set wrong_lib_flags "$lib_flags additional_flags=-DARRAY_SIZE=1"
57 set right_lib_flags "$lib_flags additional_flags=-DARRAY_SIZE=8192 -DRIGHT"
61 set bin_flags [list debug shlib=${binfile1_lib} shlib=${binfile2_lib}]
63 remote_exec build "rm -rf [standard_output_file ${wrong_lib_subdir}]"
64 remote_exec build "rm -rf [standard_output_file ${right_lib_subdir}]"
65 remote_exec build "mkdir [standard_output_file ${wrong_lib_subdir}]"
66 remote_exec build "mkdir [standard_output_file ${right_lib_subdir}]"
68 if { [gdb_compile_shlib ${srcfile1_lib} ${wrong_binfile1_lib} $wrong_lib_flags] != ""
69 || [gdb_compile_shlib ${srcfile2_lib} ${wrong_binfile2_lib} $wrong_lib_flags] != ""
70 || [gdb_compile_shlib ${srcfile1_lib} ${right_binfile1_lib} $right_lib_flags] != ""
71 || [gdb_compile_shlib ${srcfile2_lib} ${right_binfile2_lib} $right_lib_flags] != "" } {
72 untested "failed to compile shared library"
76 # Build the test binary using the right copies of the libraries.
77 remote_exec build "ln -sf ${right_lib_subdir}/${libname1}.so ${binfile1_lib}"
78 remote_exec build "ln -sf ${right_lib_subdir}/${libname2}.so ${binfile2_lib}"
79 if { [gdb_compile $srcdir/$subdir/${srcfile} ${binfile} \
80 executable $bin_flags] != "" } {
81 untested "failed to compile"
85 clean_restart $testfile
87 if { ![runto_main] } {
88 fail "can't run to main"
92 gdb_breakpoint "break_here"
93 gdb_continue "break_here"
95 set corefile [standard_output_file solib-search.core]
96 set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
98 if {!$core_supported} {
102 # Before we restart gdb, replace the libs with the "wrong" ones.
103 remote_exec build "ln -sf ${wrong_lib_subdir}/${libname1}.so ${binfile1_lib}"
104 remote_exec build "ln -sf ${wrong_lib_subdir}/${libname2}.so ${binfile2_lib}"
106 clean_restart $testfile
108 set core_loaded [gdb_core_cmd $corefile "re-load generated corefile"]
109 if { $core_loaded == -1 } {
110 # No use proceeding from here.
114 proc test_backtrace { expect_fail } {
120 if { $expect_fail } {
121 set testname "backtrace (with wrong libs)"
123 set testname "backtrace (with right libs)"
125 # N.B. The order of the tests here is important.
126 # We need to count each function in the backtrace, and expect matches
127 # the first one it finds.
128 gdb_test_multiple "backtrace" $testname {
129 -re "\[^\r\n\]* in lib2_func4 \[^\r\n\]*" {
133 -re "\[^\r\n\]* in lib1_func3 \[^\r\n\]*" {
137 -re "\[^\r\n\]* in lib2_func2 \[^\r\n\]*" {
141 -re "\[^\r\n\]* in lib1_func1 \[^\r\n\]*" {
145 -re "\[^\r\n\]* in main \[^\r\n\]*" {
149 -re "\[\r\n\]$gdb_prompt $" {
150 pass "$testname (data collection)"
155 if { $expect_fail } {
156 # If the backtrace output is correct the test isn't sufficiently
157 # testing what it should.
158 if { $count == $total_expected } {
162 if { $count != $total_expected } {
173 # Verify the backtrace is messed up.
176 # Remove the copies gdb currently sees: the absolute path is encoded in
177 # the core file and we want gdb to find the right copies elsewhere.
178 remote_exec build "rm -f ${binfile1_lib}"
179 remote_exec build "rm -f ${binfile2_lib}"
180 # Set solib-search-path to use the correct copies of libraries.
181 gdb_test "set solib-search-path [standard_output_file ${right_lib_subdir}]" \
183 "set solib-search-path"
185 # Verify gdb has properly updated the location of the libraries.
187 gdb_test "p lib1_size" " = 8192"
188 gdb_test "p lib2_size" " = 8192"