1 # Copyright 2009 Free Software Foundation, Inc.
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.
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.
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/>.
15 # Contributed by Jan Kratochvil <jan.kratochvil@redhat.com>.
17 # Test GDB can cope with two libraries loaded with overlapping VMA ranges.
18 # Prelink libraries first so they can be loaded and their native address.
19 # In such case `struct linkmap'.l_addr will be zero. Provide different
20 # unprelinked library files on the disk which have zero-based VMAs. These
21 # different files should have their .dynamic section at a different offset in
22 # page size so that we get for
23 # warning: .dynamic section for "..." is not at the expected address
25 # (wrong library or version mismatch?)
27 # difference appears to be caused by prelink, adjusting expectations
28 # In such case both disk libraries will be loaded at VMAs starting at zero.
30 if [skip_shlib_tests] {
34 # Are we on a target board? It is required for attaching to a process.
35 if [is_remote target] {
39 if [get_compiler_info binfile-unused] {
44 set libname "solib-overlap-lib"
45 set srcfile_lib ${srcdir}/${subdir}/${libname}.c
47 set testfile "solib-overlap-main"
48 set srcfile ${srcdir}/${subdir}/${testfile}.c
50 # Base addresses for `prelink -r' which should be compatible with both -m32 and
51 # -m64 targets. If it clashes with system prelinked libraries it would give
53 # Prelink first lib1 at 0x40000000 and lib2 at 0x41000000.
54 # During second pass try lib1 at 0x50000000 and lib2 at 0x51000000.
55 foreach prelink_lib1 {0x40000000 0x50000000} {
56 set prelink_lib2 [format "0x%x" [expr $prelink_lib1 + 0x01000000]]
58 set old_prefix $pf_prefix
59 lappend pf_prefix "$prelink_lib1:"
62 set binfile_lib1 ${objdir}/${subdir}/${libname}1-${prelink_lib1}.so
63 set binfile_lib2 ${objdir}/${subdir}/${libname}2-${prelink_lib1}.so
66 set binfile_base ${testfile}-${prelink_lib1}
67 set binfile ${objdir}/${subdir}/${binfile_base}
68 set bin_flags [list debug shlib=${binfile_lib1} shlib=${binfile_lib2}]
69 set escapedbinfile [string_to_regexp ${binfile}]
71 if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != ""
72 || [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != ""
73 || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
74 untested "Could not compile ${binfile_lib1}, ${binfile_lib2} or ${binfile}."
78 if {[catch "system \"prelink -N -r ${prelink_lib1} ${binfile_lib1}\""] != 0
79 || [catch "system \"prelink -N -r ${prelink_lib2} ${binfile_lib2}\""] != 0} {
80 # Maybe we don't have prelink.
81 untested "Could not prelink ${binfile_lib1} or ${binfile_lib2}."
85 # Start the program running and then wait for a bit, to be sure
86 # that it can be attached to.
88 set testpid [eval exec $binfile &]
90 if { [istarget "*-*-cygwin*"] } {
91 # testpid is the Cygwin PID, GDB uses the Windows PID, which might be
92 # different due to the way fork/exec works.
93 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
96 remote_exec build "mv -f ${binfile_lib1} ${binfile_lib1}-running"
97 remote_exec build "mv -f ${binfile_lib2} ${binfile_lib2}-running"
99 # Provide another exported function name to cause different sizes of sections.
100 lappend lib_flags additional_flags=-DSYMB
102 if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != ""
103 || [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != ""} {
104 untested "Could not recompile ${binfile_lib1} or ${binfile_lib2}."
105 remote_exec build "kill -9 ${testpid}"
109 clean_restart ${binfile_base}
110 # This testcase currently does not support remote targets.
111 # gdb_load_shlibs ${binfile_lib1} ${binfile_lib2}
113 # Here we should get:
114 # warning: .dynamic section for ".../solib-overlap-lib1.so" is not at the expected address (wrong library or version mismatch?)
115 # warning: .dynamic section for ".../solib-overlap-lib2.so" is not at the expected address (wrong library or version mismatch?)
118 gdb_test_multiple "attach $testpid" $test {
119 -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
122 -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
123 # Response expected on Cygwin
128 # Detach the process.
130 gdb_test "detach" "Detaching from program: .*$escapedbinfile, process $testpid"
132 # Wait a bit for gdb to finish detaching
136 remote_exec build "kill -9 ${testpid}"
138 set pf_prefix $old_prefix