if {$name == ""} {
set name [file tail $arg]
}
+
+ # Try to unprelink it first so that if it has been already prelinked before
+ # we get different address now and the result is not affected by the
+ # previous $arg state..
+ prelinkNO $arg "$name pre-unprelink"
+
set test "prelink $name"
set command "exec /usr/sbin/prelink -qNR --no-exec-shield $arg"
verbose -log "command is $command"
set pf_prefix $old_ldprefix
}
-proc test_attach {file displacement} {
- global board_info gdb_prompt expect_out
-
- gdb_exit
-
- set test "sleep function started"
-
- set command "${file} sleep"
- set res [remote_spawn host $command];
- if { $res < 0 || $res == "" } {
- perror "Spawning $command failed."
- fail $test
- return
- }
- set pid [exp_pid -i $res]
- gdb_expect {
- -re "sleeping\r\n" {
- pass $test
- }
- eof {
- fail "$test (eof)"
- return
- }
- timeout {
- fail "$test (timeout)"
- return
- }
- }
+proc test_attach_gdb {file pid displacement prefix} {
+ global gdb_prompt expect_out
global pf_prefix
set old_ldprefix $pf_prefix
- lappend pf_prefix "attach:"
+ lappend pf_prefix "$prefix:"
gdb_exit
gdb_start
# Print the "PIE (Position Independent Executable) displacement" message.
gdb_test_no_output "set verbose on"
+ if {$file != ""} {
+ gdb_test "file $file" "Reading symbols from .*done\\." "file"
+ }
+
set test "attach"
gdb_test_multiple "attach $pid" $test {
- -re "Attaching to process $pid\r\n" {
+ -re "Attaching to (program: .*, )?process $pid\r\n" {
# Missing "$gdb_prompt $" is intentional.
pass $test
}
gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
gdb_exit
- remote_exec host "kill -9 $pid"
-
set pf_prefix $old_ldprefix
}
+proc test_attach {file displacement {relink_args ""}} {
+ global board_info
+
+ gdb_exit
+
+ set test "sleep function started"
+
+ set command "${file} sleep"
+ set res [remote_spawn host $command];
+ if { $res < 0 || $res == "" } {
+ perror "Spawning $command failed."
+ fail $test
+ return
+ }
+ set pid [exp_pid -i $res]
+ gdb_expect {
+ -re "sleeping\r\n" {
+ pass $test
+ }
+ eof {
+ fail "$test (eof)"
+ return
+ }
+ timeout {
+ fail "$test (timeout)"
+ return
+ }
+ }
+
+ if {$relink_args == ""} {
+ test_attach_gdb "" $pid $displacement "attach"
+ } else {
+ # These could be rather passed as arguments.
+ global exec interp_saved interp
+
+ foreach relink {YES NO} {
+ if {[prelink$relink $relink_args [file tail $exec]]
+ && [copy $interp_saved $interp]} {
+ # /proc/PID/exe cannot be loaded as it is "EXECNAME (deleted)".
+ test_attach_gdb $exec $pid $displacement "attach-relink$relink"
+ }
+ }
+ }
+
+ remote_exec host "kill -9 $pid"
+}
+
proc test_ld {file ifmain trynosym displacement} {
global srcdir subdir gdb_prompt expect_out
set old_binprefix $pf_prefix
foreach binprelink {NO YES} {
foreach binsepdebug {NO IN SEP} {
- foreach binpie {NO YES} {
+ # "ATTACH" is like "YES" but it is modified during run.
+ # It cannot be used for problem reproducibility after the
+ # testcase ends.
+ foreach binpie {NO YES ATTACH} {
# This combination is not possible, non-PIE (fixed address)
# binary cannot be prelinked to any (other) address.
if {$binprelink == "YES" && $binpie == "NO"} {
if {$binsepdebug != "NO"} {
lappend opts {debug}
}
- if {$binpie == "YES"} {
+ if {$binpie != "NO"} {
lappend opts {additional_flags=-fPIE -pie}
}
if {[build_executable ${test}.exp [file tail $exec] $srcfile $opts] == -1} {
lappend dests $dest
}
- if {[prelink$binprelink "--dynamic-linker=$interp --ld-library-path=$dir $exec $interp [concat $dests]" [file tail $exec]]
+ if {$binpie == "NO"} {
+ set displacement "NONE"
+ } elseif {$binprelink == "NO"} {
+ set displacement "NONZERO"
+ } else {
+ set displacement "ZERO"
+ }
+
+ set relink_args "--dynamic-linker=$interp --ld-library-path=$dir $exec $interp [concat $dests]"
+ if {[prelink$binprelink $relink_args [file tail $exec]]
&& [copy $interp_saved $interp]} {
- if {$binpie == "NO"} {
- set displacement "NONE"
- } elseif {$binprelink == "NO"} {
- set displacement "NONZERO"
+ if {$binpie != "ATTACH"} {
+ test_ld $exec 1 [expr {$binsepdebug == "NO"}] $displacement
} else {
- set displacement "ZERO"
+ # If the file has been randomly prelinked it must
+ # be "NONZERO". We could see "ZERO" only if it was
+ # unprelinked and it is now running at the same
+ # address - which is 0 but executable can never run
+ # at address 0.
+
+ set displacement "NONZERO"
+ test_attach $exec $displacement $relink_args
+
+ # ATTACH means that executables and libraries have
+ # been modified after they have been run. They
+ # cannot be reused for problem reproducibility after
+ # the testcase ends in the ATTACH case. Therefore
+ # they are rather deleted not to confuse after the
+ # run finishes.
+ set exec_debug [system_debug_get $exec]
+ if {$exec_debug != ""} {
+ # `file delete [glob "${exec_debug}*"]' does not work.
+ foreach f [glob "${exec_debug}*"] {
+ file delete $f
+ }
+ }
+ file delete -force $dir
+ # `file delete [glob "${exec}*"]' does not work.
+ foreach f [glob "${exec}*"] {
+ file delete $f
+ }
}
- test_ld $exec 1 [expr {$binsepdebug == "NO"}] $displacement
}
}
}
projects / external / binutils.git / blobdiff