1# Copyright 2009-2015 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. 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 Jan Kratochvil <jan.kratochvil@redhat.com>. 16 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 24# the reason 25# (wrong library or version mismatch?) 26# and not: 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. 29 30if [skip_shlib_tests] { 31 return 0 32} 33 34if {![can_spawn_for_attach]} { 35 return 0 36} 37 38if [get_compiler_info] { 39 return -1 40} 41 42# Library file. 43set libname "solib-overlap-lib" 44set srcfile_lib ${srcdir}/${subdir}/${libname}.c 45# Binary file. 46set testfile "solib-overlap-main" 47set srcfile ${srcdir}/${subdir}/${testfile}.c 48 49# Base addresses for `prelink -r' which should be compatible with both -m32 and 50# -m64 targets. If it clashes with system prelinked libraries it would give 51# false PASS. 52# Prelink first lib1 at 0x40000000 and lib2 at 0x41000000. 53# During second pass try lib1 at 0x50000000 and lib2 at 0x51000000. 54foreach prelink_lib1 {0x40000000 0x50000000} { with_test_prefix "$prelink_lib1" { 55 set prelink_lib2 [format "0x%x" [expr $prelink_lib1 + 0x01000000]] 56 57 # Library file. 58 set binfile_lib1 [standard_output_file ${libname}1-${prelink_lib1}.so] 59 set binfile_lib1_test_msg OBJDIR/${subdir}/${libname}1-${prelink_lib1}.so 60 set binfile_lib2 [standard_output_file ${libname}2-${prelink_lib1}.so] 61 set binfile_lib2_test_msg OBJDIR/${subdir}/${libname}2-${prelink_lib1}.so 62 set lib_flags {debug} 63 # Binary file. 64 set binfile_base ${testfile}-${prelink_lib1} 65 set binfile [standard_output_file ${binfile_base}] 66 set binfile_test_msg OBJDIR/${subdir}/${binfile_base} 67 set bin_flags [list debug shlib=${binfile_lib1} shlib=${binfile_lib2}] 68 set escapedbinfile [string_to_regexp ${binfile}] 69 70 if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != "" 71 || [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != "" 72 || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } { 73 untested "Could not compile ${binfile_lib1_test_msg}, ${binfile_lib2_test_msg} or ${binfile_test_msg}." 74 return -1 75 } 76 77 if {[catch "system \"prelink -N -r ${prelink_lib1} ${binfile_lib1}\""] != 0 78 || [catch "system \"prelink -N -r ${prelink_lib2} ${binfile_lib2}\""] != 0} { 79 # Maybe we don't have prelink. 80 untested "Could not prelink ${binfile_lib1_test_msg} or ${binfile_lib2_test_msg}." 81 return -1 82 } 83 84 set testpid [spawn_wait_for_attach $binfile] 85 86 remote_exec build "mv -f ${binfile_lib1} ${binfile_lib1}-running" 87 remote_exec build "mv -f ${binfile_lib2} ${binfile_lib2}-running" 88 89 # Provide another exported function name to cause different sizes of sections. 90 lappend lib_flags additional_flags=-DSYMB 91 92 if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib1} $lib_flags] != "" 93 || [gdb_compile_shlib ${srcfile_lib} ${binfile_lib2} $lib_flags] != ""} { 94 untested "Could not recompile ${binfile_lib1_test_msg} or ${binfile_lib2_test_msg}." 95 remote_exec build "kill -9 ${testpid}" 96 return -1 97 } 98 99 clean_restart ${binfile_base} 100 # This testcase currently does not support remote targets. 101 # gdb_load_shlibs ${binfile_lib1} ${binfile_lib2} 102 103 # Here we should get: 104 # warning: .dynamic section for ".../solib-overlap-lib1.so" is not at the expected address (wrong library or version mismatch?) 105 # warning: .dynamic section for ".../solib-overlap-lib2.so" is not at the expected address (wrong library or version mismatch?) 106 107 set test attach 108 gdb_test_multiple "attach $testpid" $test { 109 -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" { 110 pass $test 111 } 112 -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" { 113 # Response expected on Cygwin 114 pass $test 115 } 116 } 117 118 # Detach the process. 119 120 gdb_test "detach" "Detaching from program: .*$escapedbinfile, process $testpid" 121 122 # Wait a bit for gdb to finish detaching 123 124 sleep 5 125 126 remote_exec build "kill -9 ${testpid}" 127}} 128