40b27cdc59
* gdb.base/break-interp.exp: Use [file tail $filename] to omit any absolute directory pathnames in gdb.sum file.
543 lines
15 KiB
Text
543 lines
15 KiB
Text
# Copyright 2010 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This test only works on GNU/Linux.
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if { ![isnative] || [is_remote host] || ![istarget *-linux*] || [skip_shlib_tests]} {
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continue
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}
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set test "break-interp"
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set binprefix ${objdir}/${subdir}/${test}
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# Only to get the $interp_system name.
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set srcfile_test "start.c"
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set binfile_test ${test}-test
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set binfile_lib ${objdir}/${subdir}/${test}.so
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set srcfile "${test}-main.c"
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set srcfile_lib "${test}-lib.c"
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if [get_compiler_info ${binfile_lib}] {
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return -1
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}
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# Use -soname so that it is listed with " => " by ldd and this testcase makes
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# a copy of ${binfile_lib} for each prelink variant.
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if {[gdb_compile_shlib ${srcdir}/${subdir}/${srcfile_lib} ${binfile_lib} [list debug additional_flags=-Wl,-soname,${test}.so]] != ""} {
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return -1
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}
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if {[build_executable ${test}.exp $binfile_test ${srcfile_test} {}] == -1} {
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return -1
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}
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# Return the interpreter filename string.
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# Return "" if no interpreter was found.
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proc section_get {exec section} {
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global objdir
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global subdir
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set tmp "${objdir}/${subdir}/break-interp.interp"
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set objcopy_program [transform objcopy]
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set command "exec $objcopy_program -O binary --set-section-flags $section=A --change-section-address $section=0 -j $section $exec $tmp"
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verbose -log "command is $command"
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set result [catch $command output]
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verbose -log "result is $result"
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verbose -log "output is $output"
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if {$result == 1} {
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return ""
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}
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set fi [open $tmp]
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fconfigure $fi -translation binary
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set data [read $fi]
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close $fi
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#file delete $tmp
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# .interp has size $len + 1 but .gnu_debuglink contains garbage after \000.
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set len [string first \000 $data]
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if {$len < 0} {
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verbose -log "section $section not found"
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return ""
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}
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set retval [string range $data 0 [expr $len - 1]]
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verbose -log "section $section is <$retval>"
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return $retval
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}
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# Note: The separate debug info file content build-id/crc32 are not verified
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# contrary to the GDB search algorithm skipping non-matching ones.
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proc system_debug_get {exec} {
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global debug_root
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set exec_build_id_debug [build_id_debug_filename_get $exec]
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set debug_base "[file tail $exec].debug"
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set exec_dir [file dirname $exec]
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# isfile returns 1 even for symlinks to files.
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set retval $debug_root/$exec_build_id_debug
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if [file isfile $retval] {
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return $retval
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}
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set retval $exec_dir/$debug_base
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if [file isfile $retval] {
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return $retval
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}
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set retval $exec_dir/.debug/$debug_base
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if [file isfile $retval] {
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return $retval
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}
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set retval $debug_root/$exec_dir/$debug_base
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if [file isfile $retval] {
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return $retval
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}
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return ""
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}
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gdb_exit
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gdb_start
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set debug_root ""
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set test "show debug-file-directory"
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gdb_test_multiple $test $test {
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-re "The directory where separate debug symbols are searched for is \"(.*)\".\r\n$gdb_prompt $" {
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set debug_root $expect_out(1,string)
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}
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}
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set interp_system [section_get ${objdir}/${subdir}/$binfile_test .interp]
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set interp_system_debug [system_debug_get $interp_system]
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verbose -log "$interp_system has debug $interp_system_debug"
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proc prelinkNO_run {arg} {
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set command "exec /usr/sbin/prelink -uN $arg"
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verbose -log "command is $command"
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set result [catch $command output]
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verbose -log "result is $result"
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verbose -log "output is $output"
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return [list $result $output]
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}
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proc prelinkNO {arg {name {}}} {
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if {$name == ""} {
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set name [file tail $arg]
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}
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set test "unprelink $name"
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set run [prelinkNO_run $arg]
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set result [lindex $run 0]
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set output [lindex $run 1]
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if {$result == 0 && $output == ""} {
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verbose -log "$name has been now unprelinked"
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set run [prelinkNO_run $arg]
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set result [lindex $run 0]
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set output [lindex $run 1]
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}
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# Last line does miss the trailing \n.
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if {$result == 1 && [regexp {^(/usr/sbin/prelink: [^ ]* does not have .gnu.prelink_undo section\n?)*$} $output]} {
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pass $test
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return 1
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} else {
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fail $test
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return 0
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}
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}
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proc prelinkYES {arg {name ""}} {
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if {$name == ""} {
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set name [file tail $arg]
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}
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set test "prelink $name"
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set command "exec /usr/sbin/prelink -qNR --no-exec-shield $arg"
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verbose -log "command is $command"
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set result [catch $command output]
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verbose -log "result is $result"
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verbose -log "output is $output"
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if {$result == 0 && $output == ""} {
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pass $test
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return 1
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} else {
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fail $test
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return 0
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}
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}
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# Resolve symlinks.
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proc symlink_resolve {file} {
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set loop 0
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while {[file type $file] == "link"} {
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set target [file readlink $file]
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if {[file pathtype $target] == "relative"} {
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set src2 [file dirname $file]/$target
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} else {
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set src2 $target
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}
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verbose -log "Resolved symlink $file targetting $target as $src2"
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set file $src2
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set loop [expr $loop + 1]
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if {$loop > 30} {
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fail "Looping symlink resolution for $file"
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return ""
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}
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}
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return $file
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}
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proc copy {src dest} {
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set src [symlink_resolve $src]
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# Test name would contain build-id hash for symlink-unresolved $src.
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set test "copy [file tail $src] to [file tail $dest]"
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set command "file copy -force $src $dest"
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verbose -log "command is $command"
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if [catch $command] {
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fail $test
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return 0
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} else {
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pass $test
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return 1
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}
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}
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proc strip_debug {dest} {
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set test "strip [file tail $dest]"
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set strip_program [transform strip]
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set command "exec $strip_program --strip-debug $dest"
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verbose -log "command is $command"
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if [catch $command] {
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fail $test
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return 0
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} else {
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pass $test
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return 1
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}
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}
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# `runto' does not check we stopped really at the function we specified.
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proc reach {func command} {
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global gdb_prompt
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if [gdb_breakpoint $func allow-pending] {
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set test "reach $func"
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gdb_test_multiple $command $test {
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-re "Breakpoint \[0-9\]+, $func \\(.*\\) at .*:\[0-9\]+\r\n.*$gdb_prompt $" {
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pass $test
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}
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-re "Breakpoint \[0-9\]+, \[0-9xa-f\]+ in $func \\(\\)( from .*)?\r\n$gdb_prompt $" {
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pass $test
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}
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}
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}
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}
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proc test_core {file} {
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global srcdir subdir gdb_prompt
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set corefile [core_find $file {} "segv"]
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if {$corefile == ""} {
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return
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}
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gdb_exit
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gdb_start
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# Clear it to never find any separate debug infos in $debug_root.
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gdb_test "set debug-file-directory" "" "set debug-file-directory for core"
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $file
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# Do not check the binary filename as it may be truncated.
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gdb_test "core-file $corefile" "Core was generated by .*\r\n#0 .*" "core loaded"
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gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "core main bt"
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}
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proc test_attach {file} {
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global board_info
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gdb_exit
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set test "sleep function started"
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set command "${file} sleep"
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set res [remote_spawn host $command];
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if { $res < 0 || $res == "" } {
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perror "Spawning $command failed."
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fail $test
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return
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}
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set pid [exp_pid -i $res]
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gdb_expect {
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-re "sleeping\r\n" {
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pass $test
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}
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eof {
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fail "$test (eof)"
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return
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}
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timeout {
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fail "$test (timeout)"
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return
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}
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}
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gdb_exit
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gdb_start
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gdb_test "attach $pid" "Attaching to process $pid\r\n.*" "attach"
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gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
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gdb_exit
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remote_exec host "kill -9 $pid"
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}
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proc test_ld {file ifmain trynosym} {
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global srcdir subdir gdb_prompt
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# First test normal `file'-command loaded $FILE with symbols.
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gdb_exit
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gdb_start
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# Clear it to never find any separate debug infos in $debug_root.
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gdb_test "set debug-file-directory"
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $file
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reach "dl_main" "run segv"
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gdb_test "bt" "#0 +\[^\r\n\]*\\mdl_main\\M.*" "dl bt"
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if $ifmain {
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reach "main" continue
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reach "libfunc" continue
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gdb_test "bt" "#0 +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#1 +\[^\r\n\]*\\mmain\\M.*" "main bt"
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test_core $file
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test_attach $file
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}
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if !$trynosym {
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return
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}
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global pf_prefix
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set old_ldprefix $pf_prefix
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lappend pf_prefix "symbol-less:"
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# Test also `exec-file'-command loaded $FILE - therefore without symbols.
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# SYMBOL_OBJFILE is not available and only EXEC_BFD must be used.
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gdb_exit
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gdb_start
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# Clear it to never find any separate debug infos in $debug_root.
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gdb_test "set debug-file-directory"
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gdb_reinitialize_dir $srcdir/$subdir
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# Test no (error) message has been printed by `exec-file'.
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set escapedfile [string_to_regexp $file]
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gdb_test "exec-file $file" "exec-file $escapedfile" "load"
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if $ifmain {
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reach "dl_main" run
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set test "info files"
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set entrynohex ""
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gdb_test_multiple $test $test {
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-re "\r\n\[\t \]*Entry point:\[\t \]*0x(\[0-9a-f\]+)\r\n.*$gdb_prompt $" {
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set entrynohex $expect_out(1,string)
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pass $test
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}
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}
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if {$entrynohex != ""} {
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gdb_test "break *0x$entrynohex" "" "break at entry point"
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gdb_test "continue" "\r\nBreakpoint \[0-9\]+, 0x0*$entrynohex in .*" "entry point reached"
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}
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} else {
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# There is no symbol to break at ld.so. Moreover it can exit with an
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# error code.
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gdb_test "run" "Program exited (normally|with code \[0-9\]+)\\." "ld.so exit"
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}
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set pf_prefix $old_ldprefix
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}
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# Create separate binaries for each testcase - to make the possible reported
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# problem reproducible after the whole test run finishes.
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set old_ldprefix $pf_prefix
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foreach ldprelink {NO YES} {
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foreach ldsepdebug {NO IN SEP} {
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# Skip running the ldsepdebug test if we do not have system separate
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# debug info available.
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if {$interp_system_debug == "" && $ldsepdebug == "SEP"} {
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continue
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}
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set ldname "LDprelink${ldprelink}debug${ldsepdebug}"
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set interp $binprefix-$ldname
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# prelink needs to always prelink all the dependencies to do any file
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# modifications of its files. ld.so also needs all the dependencies to
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# be prelinked to omit the relocation process. In-memory file offsets
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# are not dependent whether ld.so went the prelink way or through the
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# relocation process.
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#
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# For GDB we are not interested whether prelink succeeds as it is
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# transparent to GDB. GDB is being tested for differences of file
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# offsets vs. in-memory offsets. So we have to prelink even ld.so for
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# the BIN modification to happen but we need to restore the original
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# possibly unprelinked ld.so to test all the combinations for GDB.
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set interp_saved ${interp}-saved
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set pf_prefix $old_ldprefix
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lappend pf_prefix "$ldname:"
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if {$ldsepdebug == "NO"} {
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copy $interp_system $interp
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# Never call strip-debug before unprelink:
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# prelink: ...: Section .note.gnu.build-id created after prelinking
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if ![prelinkNO $interp] {
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continue
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}
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strip_debug $interp
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} elseif {$ldsepdebug == "IN" && $interp_system_debug == ""} {
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copy $interp_system $interp
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} elseif {$ldsepdebug == "IN" && $interp_system_debug != ""} {
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copy $interp_system $interp
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copy $interp_system_debug "${interp}.debug"
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# eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
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if {![prelinkNO $interp] || ![prelinkNO "${interp}.debug"]} {
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continue
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}
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set test "eu-unstrip unprelinked:[file tail $interp_system] + [file tail $interp_system_debug] to [file tail $interp]"
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set command "exec eu-unstrip -o $interp $interp ${interp}.debug"
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verbose -log "command is $command"
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if [catch $command] {
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setup_xfail *-*-*
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fail $test
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continue
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} else {
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pass $test
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}
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} elseif {$ldsepdebug == "SEP" && $interp_system_debug == ""} {
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copy $interp_system $interp
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# eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
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if ![prelinkNO $interp] {
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continue
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}
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gdb_gnu_strip_debug $interp
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} elseif {$ldsepdebug == "SEP" && $interp_system_debug != ""} {
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copy $interp_system $interp
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copy $interp_system_debug "${interp}.debug"
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}
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if {$ldsepdebug == "SEP"} {
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if ![prelinkNO "${interp}.debug"] {
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continue
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}
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} else {
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file delete "${interp}.debug"
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}
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if ![prelink$ldprelink $interp] {
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continue
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}
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test_ld $interp 0 [expr {$ldsepdebug == "NO"}]
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if ![copy $interp $interp_saved] {
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continue
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}
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set old_binprefix $pf_prefix
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foreach binprelink {NO YES} {
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foreach binsepdebug {NO IN SEP} {
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foreach binpie {NO YES} {
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# This combination is not possible, non-PIE (fixed address)
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# binary cannot be prelinked to any (other) address.
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if {$binprelink == "YES" && $binpie == "NO"} {
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continue
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}
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set binname "BINprelink${binprelink}debug${binsepdebug}pie${binpie}"
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set exec $binprefix-$binname
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set dir ${exec}.d
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set pf_prefix $old_binprefix
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lappend pf_prefix "$binname:"
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set opts "additional_flags=-Wl,--dynamic-linker,$interp,-rpath,$dir"
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lappend opts "additional_flags=-Wl,$binfile_lib,-rpath,[file dirname $binfile_lib]"
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if {$binsepdebug != "NO"} {
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lappend opts {debug}
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}
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if {$binpie == "YES"} {
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lappend opts {additional_flags=-fPIE -pie}
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}
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if {[build_executable ${test}.exp [file tail $exec] $srcfile $opts] == -1} {
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continue;
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}
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if {$binsepdebug == "SEP"} {
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gdb_gnu_strip_debug $exec
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# Just a sanity check. As gdb_gnu_strip_debug uses the
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# "[file dirname $exec]/.debug/[file tail $exec].debug"
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# variant delete the higher-priority exec.debug file.
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file delete "$exec.debug"
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}
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# Supply a self-sufficent directory $dir with the required
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# libraries. To make an executable properly prelinked all
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# its dependencies on libraries must be also prelinked. If
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# some of the system libraries is currently not prelinked
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# we have no right to prelink (modify it) at its current
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# system place.
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file delete -force $dir
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file mkdir $dir
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set command "ldd $exec"
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set test "ldd [file tail $exec]"
|
|
set result [catch "exec $command" output]
|
|
verbose -log "result of $command is $result"
|
|
verbose -log "output of $command is $output"
|
|
if {$result != 0 || $output == ""} {
|
|
fail $test
|
|
} else {
|
|
pass $test
|
|
}
|
|
|
|
# gdb testsuite will put there also needless -lm.
|
|
set test "$test output contains libc"
|
|
set libc [regexp -all -inline -line {^.* => (/[^ ]+).*$} $output]
|
|
if {[llength $libc] == 0} {
|
|
fail $test
|
|
} else {
|
|
pass $test
|
|
}
|
|
|
|
set dests {}
|
|
for {set i 1} {$i < [llength $libc]} {incr i 2} {
|
|
set abspath [lindex $libc $i]
|
|
set dest "$dir/[file tail $abspath]"
|
|
copy $abspath $dest
|
|
lappend dests $dest
|
|
}
|
|
|
|
if {[prelink$binprelink "--dynamic-linker=$interp --ld-library-path=$dir $exec $interp [concat $dests]" [file tail $exec]]
|
|
&& [copy $interp_saved $interp]} {
|
|
test_ld $exec 1 [expr {$binsepdebug == "NO"}]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
file delete $interp_saved
|
|
}
|
|
}
|
|
set pf_prefix $old_ldprefix
|