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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc3/] [gdb/] [testsuite/] [gdb.base/] [break-interp.exp] - Blame information for rev 579

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# Copyright 2010 Free Software Foundation, Inc.
 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .
 
# This test only works on GNU/Linux.
if { ![isnative] || [is_remote host] || ![istarget *-linux*] || [skip_shlib_tests]} {
    continue
}
 
load_lib prelink-support.exp
 
set test "break-interp"
set binprefix ${objdir}/${subdir}/${test}
# Only to get the $interp_system name.
set srcfile_test "start.c"
set binfile_test ${test}-test
set binfile_lib ${objdir}/${subdir}/${test}.so
set srcfile "${test}-main.c"
set srcfile_lib "${test}-lib.c"
 
if [get_compiler_info ${binfile_lib}] {
    return -1
}
 
# Use -soname so that the new library gets copied by build_executable_own_libs.
 
if {[gdb_compile_shlib ${srcdir}/${subdir}/${srcfile_lib} ${binfile_lib} [list debug additional_flags=-Wl,-soname,${test}.so]] != ""} {
    return -1
}
 
if {[build_executable ${test}.exp $binfile_test ${srcfile_test} {}] == -1} {
    return -1
}
 
# Note: The separate debug info file content build-id/crc32 are not verified
# contrary to the GDB search algorithm skipping non-matching ones.
proc system_debug_get {exec} {
    global debug_root
 
    set exec_build_id_debug [build_id_debug_filename_get $exec]
    set debug_base "[file tail $exec].debug"
    set exec_dir [file dirname $exec]
 
    # isfile returns 1 even for symlinks to files.
    set retval $debug_root/$exec_build_id_debug
    if [file isfile $retval] {
        return $retval
    }
    set retval $exec_dir/$debug_base
    if [file isfile $retval] {
        return $retval
    }
    set retval $exec_dir/.debug/$debug_base
    if [file isfile $retval] {
        return $retval
    }
    set retval $debug_root/$exec_dir/$debug_base
    if [file isfile $retval] {
        return $retval
    }
    return ""
}
 
gdb_exit
gdb_start
set debug_root ""
set test "show debug-file-directory"
gdb_test_multiple $test $test {
    -re "The directory where separate debug symbols are searched for is \"(.*)\".\r\n$gdb_prompt $" {
        set debug_root $expect_out(1,string)
    }
}
 
set interp_system [section_get ${objdir}/${subdir}/$binfile_test .interp]
set interp_system_debug [system_debug_get $interp_system]
verbose -log "$interp_system has debug $interp_system_debug"
 
proc prelinkNO {arg {name ""}} {
    return [prelink_no $arg $name]
}
 
proc prelinkYES {arg {name ""}} {
    return [prelink_yes $arg $name]
}
 
proc strip_debug {dest} {
    set test "strip [file tail $dest]"
    set strip_program [transform strip]
    set command "exec $strip_program --strip-debug $dest"
    verbose -log "command is $command"
    if [catch $command] {
        fail $test
        return 0
    } else {
        pass $test
        return 1
    }
}
 
# `runto' does not check we stopped really at the function we specified.
# DISPLACEMENT can be "NONE", "ZERO" or "NONZERO"
proc reach {func command displacement} {
    global gdb_prompt expect_out
 
    global pf_prefix
    set old_ldprefix $pf_prefix
    lappend pf_prefix "reach-$func:"
 
    if [gdb_breakpoint $func allow-pending] {
        set test "reach"
        set test_displacement "seen displacement message as $displacement"
        gdb_test_multiple $command $test {
            -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
                # Missing "$gdb_prompt $" is intentional.
                if {$expect_out(1,string) == "0x0"} {
                    set case "ZERO"
                } else {
                    set case "NONZERO"
                }
                if {$displacement == $case} {
                    pass $test_displacement
                    set displacement "FOUND-$displacement"
                } else {
                    fail $test_displacement
                }
                exp_continue
            }
            -re "Breakpoint \[0-9\]+, $func \\(.*\\) at .*:\[0-9\]+\r\n.*$gdb_prompt $" {
                pass $test
            }
            -re "Breakpoint \[0-9\]+, \[0-9xa-f\]+ in $func \\(\\).*\r\n$gdb_prompt $" {
                pass $test
            }
        }
        if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
            fail $test_displacement
        }
    }
 
    set pf_prefix $old_ldprefix
}
 
proc test_core {file displacement} {
    global srcdir subdir gdb_prompt expect_out
 
    set corefile [core_find $file {} "segv"]
    if {$corefile == ""} {
        return
    }
 
    global pf_prefix
    set old_ldprefix $pf_prefix
    lappend pf_prefix "core:"
 
    gdb_exit
    gdb_start
    # Clear it to never find any separate debug infos in $debug_root.
    gdb_test_no_output "set debug-file-directory" \
        "set debug-file-directory for core"
    gdb_reinitialize_dir $srcdir/$subdir
    gdb_load $file
 
    # Print the "PIE (Position Independent Executable) displacement" message.
    gdb_test_no_output "set verbose on"
 
    set test "core loaded"
    set test_displacement "seen displacement message as $displacement"
    gdb_test_multiple "core-file $corefile" $test {
        -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
            # Missing "$gdb_prompt $" is intentional.
            if {$expect_out(1,string) == "0x0"} {
                set case "ZERO"
            } else {
                set case "NONZERO"
            }
            if {$displacement == $case} {
                pass $test_displacement
                set displacement "FOUND-$displacement"
            } else {
                fail $test_displacement
            }
            exp_continue
        }
        -re "Core was generated by .*\r\n#0 .*$gdb_prompt $" {
            # Do not check the binary filename as it may be truncated.
            pass $test
        }
    }
    if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
        fail $test_displacement
    }
 
    gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "core main bt"
 
    set pf_prefix $old_ldprefix
}
 
proc test_attach_gdb {file pid displacement prefix} {
    global gdb_prompt expect_out
 
    global pf_prefix
    set old_ldprefix $pf_prefix
    lappend pf_prefix "$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 (program: .*, )?process $pid\r\n" {
            # Missing "$gdb_prompt $" is intentional.
            pass $test
        }
    }
 
    set test "attach final prompt"
    set test_displacement "seen displacement message as $displacement"
    gdb_test_multiple "" $test {
        -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
            # Missing "$gdb_prompt $" is intentional.
            if {$expect_out(1,string) == "0x0"} {
                set case "ZERO"
            } else {
                set case "NONZERO"
            }
            if {$displacement == $case} {
                pass $test_displacement
                set displacement "FOUND-$displacement"
            } else {
                fail $test_displacement
            }
            exp_continue
        }
        -re "$gdb_prompt $" {
            pass $test
        }
    }
    if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
        fail $test_displacement
    }
 
    gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
    gdb_exit
 
    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} {
            # Formerly this test was testing only prelinking of $EXEC.  As the
            # prelink command automatically prelinks all of $EXEC's libraries,
            # even $INTERP got prelinked.  Therefore, we formerly had to
            # `[file_copy $interp_saved $interp]' to make $INTERP not affected
            # by this prelinking of $EXEC.
            #
            # But now we need to test even prelinking of $INTERP.  We could
            # create a separate test to test just the $INTERP prelinking.  For
            # test simplicity, we merged this test and the test above by not
            # restoring $INTERP after $EXEC prelink.  $INTERP gets restored
            # later below.
 
            if [prelink$relink $relink_args [file tail $exec]] {
                # /proc/PID/exe cannot be loaded as it is "EXECNAME (deleted)".
                test_attach_gdb $exec $pid $displacement "attach-relink$relink"
            }
        }
        file_copy $interp_saved $interp
    }
 
    remote_exec host "kill -9 $pid"
}
 
proc test_ld {file ifmain trynosym displacement} {
    global srcdir subdir gdb_prompt expect_out
 
    # First test normal `file'-command loaded $FILE with symbols.
 
    gdb_exit
    gdb_start
    # Clear it to never find any separate debug infos in $debug_root.
    gdb_test_no_output "set debug-file-directory"
    gdb_reinitialize_dir $srcdir/$subdir
    gdb_load $file
 
    # Print the "PIE (Position Independent Executable) displacement" message.
    gdb_test_no_output "set verbose on"
 
    # We want to test the re-run of a PIE in the case where the executable
    # is loaded with a different displacement, but disable-randomization
    # prevents that from happening.  So turn it off.
    gdb_test "set disable-randomization off"
 
    reach "dl_main" "run segv" $displacement
 
    gdb_test "bt" "#0 +\[^\r\n\]*\\mdl_main\\M.*" "dl bt"
 
    if $ifmain {
        reach "main" continue "NONE"
 
        reach "libfunc" continue "NONE"
 
        gdb_test "bt" "#0 +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#1 +\[^\r\n\]*\\mmain\\M.*" "main bt"
    }
 
    # Try re-run if the new PIE displacement takes effect.
    gdb_test "kill" "" "kill" {Kill the program being debugged\? \(y or n\) } "y"
    reach "dl_main" "run segv" $displacement
 
    if $ifmain {
        test_core $file $displacement
 
        test_attach $file $displacement
    }
 
    if !$trynosym {
        return
    }
 
    global pf_prefix
    set old_ldprefix $pf_prefix
    lappend pf_prefix "symbol-less:"
 
    # Test also `exec-file'-command loaded $FILE - therefore without symbols.
    # SYMBOL_OBJFILE is not available and only EXEC_BFD must be used.
 
    gdb_exit
    gdb_start
    # Clear it to never find any separate debug infos in $debug_root.
    gdb_test_no_output "set debug-file-directory"
    gdb_reinitialize_dir $srcdir/$subdir
 
    # Print the "PIE (Position Independent Executable) displacement" message.
    gdb_test_no_output "set verbose on"
 
    # Test no (error) message has been printed by `exec-file'.
    set escapedfile [string_to_regexp $file]
    gdb_test "exec-file $file" "exec-file $escapedfile" "load"
 
    if $ifmain {
        reach "dl_main" run $displacement
 
        set test "info files"
        set entrynohex ""
        gdb_test_multiple $test $test {
            -re "\r\n\[\t \]*Entry point:\[\t \]*0x(\[0-9a-f\]+)\r\n.*$gdb_prompt $" {
                set entrynohex $expect_out(1,string)
                pass $test
            }
        }
        if {$entrynohex != ""} {
            gdb_test "break *0x$entrynohex" "" "break at entry point"
            gdb_test "continue" "\r\nBreakpoint \[0-9\]+, 0x0*$entrynohex in .*" "entry point reached"
        }
    } else {
        # There is no symbol to break at ld.so.  Moreover it can exit with an
        # error code.
 
        set test "ld.so exit"
        set test_displacement "seen displacement message as $displacement"
        gdb_test_multiple "run" $test {
            -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
                # Missing "$gdb_prompt $" is intentional.
                if {$expect_out(1,string) == "0x0"} {
                    set case "ZERO"
                } else {
                    set case "NONZERO"
                }
                if {$displacement == $case} {
                    pass $test_displacement
                    set displacement "FOUND-$displacement"
                } else {
                    fail $test_displacement
                }
                exp_continue
            }
            -re "Program exited (normally|with code \[0-9\]+)\\.\r\n$gdb_prompt $" {
                # Do not check the binary filename as it may be truncated.
                pass $test
            }
        }
        if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
            fail $test_displacement
        }
    }
 
    set pf_prefix $old_ldprefix
}
 
# Create separate binaries for each testcase - to make the possible reported
# problem reproducible after the whole test run finishes.
 
set old_ldprefix $pf_prefix
foreach ldprelink {NO YES} {
    foreach ldsepdebug {NO IN SEP} {
        # Skip running the ldsepdebug test if we do not have system separate
        # debug info available.
        if {$interp_system_debug == "" && $ldsepdebug == "SEP"} {
            continue
        }
 
        set ldname "LDprelink${ldprelink}debug${ldsepdebug}"
        set interp $binprefix-$ldname
 
        # prelink needs to always prelink all the dependencies to do any file
        # modifications of its files.  ld.so also needs all the dependencies to
        # be prelinked to omit the relocation process.  In-memory file offsets
        # are not dependent whether ld.so went the prelink way or through the
        # relocation process.
        #
        # For GDB we are not interested whether prelink succeeds as it is
        # transparent to GDB.  GDB is being tested for differences of file
        # offsets vs. in-memory offsets.  So we have to prelink even ld.so for
        # the BIN modification to happen but we need to restore the original
        # possibly unprelinked ld.so to test all the combinations for GDB.
        set interp_saved ${interp}-saved
 
        set pf_prefix $old_ldprefix
        lappend pf_prefix "$ldname:"
 
        if {$ldsepdebug == "NO"} {
            file_copy $interp_system $interp
            # Never call strip-debug before unprelink:
            # prelink: ...: Section .note.gnu.build-id created after prelinking
            if ![prelinkNO $interp] {
                continue
            }
            strip_debug $interp
        } elseif {$ldsepdebug == "IN" && $interp_system_debug == ""} {
            file_copy $interp_system $interp
        } elseif {$ldsepdebug == "IN" && $interp_system_debug != ""} {
            file_copy $interp_system $interp
            file_copy $interp_system_debug "${interp}.debug"
            # eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
            if {![prelinkNO $interp] || ![prelinkNO "${interp}.debug"]} {
                continue
            }
            set test "eu-unstrip unprelinked:[file tail $interp_system] + [file tail $interp_system_debug] to [file tail $interp]"
            set command "exec eu-unstrip -o $interp $interp ${interp}.debug"
            verbose -log "command is $command"
            if [catch $command] {
                setup_xfail *-*-*
                fail $test
                continue
            } else {
                pass $test
            }
        } elseif {$ldsepdebug == "SEP" && $interp_system_debug == ""} {
            file_copy $interp_system $interp
            # eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
            if ![prelinkNO $interp] {
                continue
            }
            gdb_gnu_strip_debug $interp
        } elseif {$ldsepdebug == "SEP" && $interp_system_debug != ""} {
            file_copy $interp_system $interp
            file_copy $interp_system_debug "${interp}.debug"
        }
 
        if {$ldsepdebug == "SEP"} {
            if ![prelinkNO "${interp}.debug"] {
                continue
            }
        } else {
            file delete "${interp}.debug"
        }
 
        if ![prelink$ldprelink $interp] {
            continue
        }
        if {$ldprelink == "NO"} {
            set displacement "NONZERO"
        } else {
            set displacement "ZERO"
        }
        test_ld $interp 0 [expr {$ldsepdebug == "NO"}] $displacement
 
        if ![file_copy $interp $interp_saved] {
            continue
        }
        set old_binprefix $pf_prefix
        foreach binprelink {NO YES} {
            foreach binsepdebug {NO IN SEP} {
                # "ATTACH" is like "YES" but it is modified during run.
                # It cannot be used for problem reproducibility after the
                # testcase ends.
                foreach binpie {NO YES ATTACH} {
                    # This combination is not possible, non-PIE (fixed address)
                    # binary cannot be prelinked to any (other) address.
                    if {$binprelink == "YES" && $binpie == "NO"} {
                        continue
                    }
 
                    set binname "BINprelink${binprelink}debug${binsepdebug}pie${binpie}"
                    set exec $binprefix-$binname
 
                    set pf_prefix $old_binprefix
                    lappend pf_prefix "$binname:"
 
                    set opts "additional_flags=-Wl,$binfile_lib,-rpath,[file dirname $binfile_lib]"
                    if {$binsepdebug != "NO"} {
                        lappend opts {debug}
                    }
                    if {$binpie != "NO"} {
                        lappend opts {additional_flags=-fPIE -pie}
                    }
 
                    set dir ${exec}.d
                    set relink_args [build_executable_own_libs ${test}.exp [file tail $exec] $srcfile $opts $interp $dir]
                    if {$relink_args == ""} {
                        continue;
                    }
 
                    if {$binsepdebug == "SEP"} {
                        gdb_gnu_strip_debug $exec
                    }
 
                    if {$binpie == "NO"} {
                        set displacement "NONE"
                    } elseif {$binprelink == "NO"} {
                        set displacement "NONZERO"
                    } else {
                        set displacement "ZERO"
                    }
 
                    if {[prelink$binprelink $relink_args [file tail $exec]]
                        && [file_copy $interp_saved $interp]} {
                        if {$binpie != "ATTACH"} {
                            test_ld $exec 1 [expr {$binsepdebug == "NO"}] $displacement
                        } else {
                            # 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
                            }
                        }
                    }
                }
            }
        }
 
        file delete $interp_saved
    }
}
set pf_prefix $old_ldprefix

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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc3/] [gdb/] [testsuite/] [gdb.base/] [break-interp.exp] - Blame information for rev 579

Line No.	Rev	Author	Line
1	330	jeremybenn	`# Copyright 2010 Free Software Foundation, Inc.`
2
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.`
7			`#`
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.`
12			`#`
13			`# You should have received a copy of the GNU General Public License`
14			`# along with this program. If not, see .`
15
16			`# This test only works on GNU/Linux.`
17			`if { ![isnative] \|\| [is_remote host] \|\| ![istarget -linux] \|\| [skip_shlib_tests]} {`
18			`continue`
19			`}`
20
21			`load_lib prelink-support.exp`
22
23			`set test "break-interp"`
24			`set binprefix ${objdir}/${subdir}/${test}`
25			`# Only to get the $interp_system name.`
26			`set srcfile_test "start.c"`
27			`set binfile_test ${test}-test`
28			`set binfile_lib ${objdir}/${subdir}/${test}.so`
29			`set srcfile "${test}-main.c"`
30			`set srcfile_lib "${test}-lib.c"`
31
32			`if [get_compiler_info ${binfile_lib}] {`
33			`return -1`
34			`}`
35
36			`# Use -soname so that the new library gets copied by build_executable_own_libs.`
37
38			`if {[gdb_compile_shlib ${srcdir}/${subdir}/${srcfile_lib} ${binfile_lib} [list debug additional_flags=-Wl,-soname,${test}.so]] != ""} {`
39			`return -1`
40			`}`
41
42			`if {[build_executable ${test}.exp $binfile_test ${srcfile_test} {}] == -1} {`
43			`return -1`
44			`}`
45
46			`# Note: The separate debug info file content build-id/crc32 are not verified`
47			`# contrary to the GDB search algorithm skipping non-matching ones.`
48			`proc system_debug_get {exec} {`
49			`global debug_root`
50
51			`set exec_build_id_debug [build_id_debug_filename_get $exec]`
52			`set debug_base "[file tail $exec].debug"`
53			`set exec_dir [file dirname $exec]`
54
55			`# isfile returns 1 even for symlinks to files.`
56			`set retval $debug_root/$exec_build_id_debug`
57			`if [file isfile $retval] {`
58			`return $retval`
59			`}`
60			`set retval $exec_dir/$debug_base`
61			`if [file isfile $retval] {`
62			`return $retval`
63			`}`
64			`set retval $exec_dir/.debug/$debug_base`
65			`if [file isfile $retval] {`
66			`return $retval`
67			`}`
68			`set retval $debug_root/$exec_dir/$debug_base`
69			`if [file isfile $retval] {`
70			`return $retval`
71			`}`
72			`return ""`
73			`}`
74
75			`gdb_exit`
76			`gdb_start`
77			`set debug_root ""`
78			`set test "show debug-file-directory"`
79			`gdb_test_multiple $test $test {`
80			`-re "The directory where separate debug symbols are searched for is \"(.*)\".\r\n$gdb_prompt $" {`
81			`set debug_root $expect_out(1,string)`
82			`}`
83			`}`
84
85			`set interp_system [section_get ${objdir}/${subdir}/$binfile_test .interp]`
86			`set interp_system_debug [system_debug_get $interp_system]`
87			`verbose -log "$interp_system has debug $interp_system_debug"`
88
89			`proc prelinkNO {arg {name ""}} {`
90			`return [prelink_no $arg $name]`
91			`}`
92
93			`proc prelinkYES {arg {name ""}} {`
94			`return [prelink_yes $arg $name]`
95			`}`
96
97			`proc strip_debug {dest} {`
98			`set test "strip [file tail $dest]"`
99			`set strip_program [transform strip]`
100			`set command "exec $strip_program --strip-debug $dest"`
101			`verbose -log "command is $command"`
102			`if [catch $command] {`
103			`fail $test`
104			`return 0`
105			`} else {`
106			`pass $test`
107			`return 1`
108			`}`
109			`}`
110
111			# `runto' does not check we stopped really at the function we specified.
112			`# DISPLACEMENT can be "NONE", "ZERO" or "NONZERO"`
113			`proc reach {func command displacement} {`
114			`global gdb_prompt expect_out`
115
116			`global pf_prefix`
117			`set old_ldprefix $pf_prefix`
118			`lappend pf_prefix "reach-$func:"`
119
120			`if [gdb_breakpoint $func allow-pending] {`
121			`set test "reach"`
122			`set test_displacement "seen displacement message as $displacement"`
123			`gdb_test_multiple $command $test {`
124			`-re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {`
125			`# Missing "$gdb_prompt $" is intentional.`
126			`if {$expect_out(1,string) == "0x0"} {`
127			`set case "ZERO"`
128			`} else {`
129			`set case "NONZERO"`
130			`}`
131			`if {$displacement == $case} {`
132			`pass $test_displacement`
133			`set displacement "FOUND-$displacement"`
134			`} else {`
135			`fail $test_displacement`
136			`}`
137			`exp_continue`
138			`}`
139			`-re "Breakpoint \[0-9\]+, $func \\(.\\) at .:\[0-9\]+\r\n.*$gdb_prompt $" {`
140			`pass $test`
141			`}`
142			`-re "Breakpoint \[0-9\]+, \[0-9xa-f\]+ in $func \\(\\).*\r\n$gdb_prompt $" {`
143			`pass $test`
144			`}`
145			`}`
146			`if ![regexp {^(NONE\|FOUND-.*)$} $displacement] {`
147			`fail $test_displacement`
148			`}`
149			`}`
150
151			`set pf_prefix $old_ldprefix`
152			`}`
153
154			`proc test_core {file displacement} {`
155			`global srcdir subdir gdb_prompt expect_out`
156
157			`set corefile [core_find $file {} "segv"]`
158			`if {$corefile == ""} {`
159			`return`
160			`}`
161
162			`global pf_prefix`
163			`set old_ldprefix $pf_prefix`
164			`lappend pf_prefix "core:"`
165
166			`gdb_exit`
167			`gdb_start`
168			`# Clear it to never find any separate debug infos in $debug_root.`
169			`gdb_test_no_output "set debug-file-directory" \`
170			`"set debug-file-directory for core"`
171			`gdb_reinitialize_dir $srcdir/$subdir`
172			`gdb_load $file`
173
174			`# Print the "PIE (Position Independent Executable) displacement" message.`
175			`gdb_test_no_output "set verbose on"`
176
177			`set test "core loaded"`
178			`set test_displacement "seen displacement message as $displacement"`
179			`gdb_test_multiple "core-file $corefile" $test {`
180			`-re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {`
181			`# Missing "$gdb_prompt $" is intentional.`
182			`if {$expect_out(1,string) == "0x0"} {`
183			`set case "ZERO"`
184			`} else {`
185			`set case "NONZERO"`
186			`}`
187			`if {$displacement == $case} {`
188			`pass $test_displacement`
189			`set displacement "FOUND-$displacement"`
190			`} else {`
191			`fail $test_displacement`
192			`}`
193			`exp_continue`
194			`}`
195			`-re "Core was generated by .\r\n#0 .$gdb_prompt $" {`
196			`# Do not check the binary filename as it may be truncated.`
197			`pass $test`
198			`}`
199			`}`
200			`if ![regexp {^(NONE\|FOUND-.*)$} $displacement] {`
201			`fail $test_displacement`
202			`}`
203
204			`gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]\\mlibfunc\\M\[^\r\n\]\r\n#\[0-9\]+ +\[^\r\n\]\\mmain\\M." "core main bt"`
205
206			`set pf_prefix $old_ldprefix`
207			`}`
208
209			`proc test_attach_gdb {file pid displacement prefix} {`
210			`global gdb_prompt expect_out`
211
212			`global pf_prefix`
213			`set old_ldprefix $pf_prefix`
214			`lappend pf_prefix "$prefix:"`
215
216			`gdb_exit`
217			`gdb_start`
218
219			`# Print the "PIE (Position Independent Executable) displacement" message.`
220			`gdb_test_no_output "set verbose on"`
221
222			`if {$file != ""} {`
223			`gdb_test "file $file" "Reading symbols from .*done\\." "file"`
224			`}`
225
226			`set test "attach"`
227			`gdb_test_multiple "attach $pid" $test {`
228			`-re "Attaching to (program: .*, )?process $pid\r\n" {`
229			`# Missing "$gdb_prompt $" is intentional.`
230			`pass $test`
231			`}`
232			`}`
233
234			`set test "attach final prompt"`
235			`set test_displacement "seen displacement message as $displacement"`
236			`gdb_test_multiple "" $test {`
237			`-re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {`
238			`# Missing "$gdb_prompt $" is intentional.`
239			`if {$expect_out(1,string) == "0x0"} {`
240			`set case "ZERO"`
241			`} else {`
242			`set case "NONZERO"`
243			`}`
244			`if {$displacement == $case} {`
245			`pass $test_displacement`
246			`set displacement "FOUND-$displacement"`
247			`} else {`
248			`fail $test_displacement`
249			`}`
250			`exp_continue`
251			`}`
252			`-re "$gdb_prompt $" {`
253			`pass $test`
254			`}`
255			`}`
256			`if ![regexp {^(NONE\|FOUND-.*)$} $displacement] {`
257			`fail $test_displacement`
258			`}`
259
260			`gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]\\mlibfunc\\M\[^\r\n\]\r\n#\[0-9\]+ +\[^\r\n\]\\mmain\\M." "attach main bt"`
261			`gdb_exit`
262
263			`set pf_prefix $old_ldprefix`
264			`}`
265
266			`proc test_attach {file displacement {relink_args ""}} {`
267			`global board_info`
268
269			`gdb_exit`
270
271			`set test "sleep function started"`
272
273			`set command "${file} sleep"`
274			`set res [remote_spawn host $command];`
275			`if { $res < 0 \|\| $res == "" } {`
276			`perror "Spawning $command failed."`
277			`fail $test`
278			`return`
279			`}`
280			`set pid [exp_pid -i $res]`
281			`gdb_expect {`
282			`-re "sleeping\r\n" {`
283			`pass $test`
284			`}`
285			`eof {`
286			`fail "$test (eof)"`
287			`return`
288			`}`
289			`timeout {`
290			`fail "$test (timeout)"`
291			`return`
292			`}`
293			`}`
294
295			`if {$relink_args == ""} {`
296			`test_attach_gdb "" $pid $displacement "attach"`
297			`} else {`
298			`# These could be rather passed as arguments.`
299			`global exec interp_saved interp`
300
301			`foreach relink {YES NO} {`
302			`# Formerly this test was testing only prelinking of $EXEC. As the`
303			`# prelink command automatically prelinks all of $EXEC's libraries,`
304			`# even $INTERP got prelinked. Therefore, we formerly had to`
305			# `[file_copy $interp_saved $interp]' to make $INTERP not affected
306			`# by this prelinking of $EXEC.`
307			`#`
308			`# But now we need to test even prelinking of $INTERP. We could`
309			`# create a separate test to test just the $INTERP prelinking. For`
310			`# test simplicity, we merged this test and the test above by not`
311			`# restoring $INTERP after $EXEC prelink. $INTERP gets restored`
312			`# later below.`
313
314			`if [prelink$relink $relink_args [file tail $exec]] {`
315			`# /proc/PID/exe cannot be loaded as it is "EXECNAME (deleted)".`
316			`test_attach_gdb $exec $pid $displacement "attach-relink$relink"`
317			`}`
318			`}`
319			`file_copy $interp_saved $interp`
320			`}`
321
322			`remote_exec host "kill -9 $pid"`
323			`}`
324
325			`proc test_ld {file ifmain trynosym displacement} {`
326			`global srcdir subdir gdb_prompt expect_out`
327
328			# First test normal `file'-command loaded $FILE with symbols.
329
330			`gdb_exit`
331			`gdb_start`
332			`# Clear it to never find any separate debug infos in $debug_root.`
333			`gdb_test_no_output "set debug-file-directory"`
334			`gdb_reinitialize_dir $srcdir/$subdir`
335			`gdb_load $file`
336
337			`# Print the "PIE (Position Independent Executable) displacement" message.`
338			`gdb_test_no_output "set verbose on"`
339
340			`# We want to test the re-run of a PIE in the case where the executable`
341			`# is loaded with a different displacement, but disable-randomization`
342			`# prevents that from happening. So turn it off.`
343			`gdb_test "set disable-randomization off"`
344
345			`reach "dl_main" "run segv" $displacement`
346
347			`gdb_test "bt" "#0 +\[^\r\n\]\\mdl_main\\M." "dl bt"`
348
349			`if $ifmain {`
350			`reach "main" continue "NONE"`
351
352			`reach "libfunc" continue "NONE"`
353
354			`gdb_test "bt" "#0 +\[^\r\n\]\\mlibfunc\\M\[^\r\n\]\r\n#1 +\[^\r\n\]\\mmain\\M." "main bt"`
355			`}`
356
357			`# Try re-run if the new PIE displacement takes effect.`
358			`gdb_test "kill" "" "kill" {Kill the program being debugged\? \(y or n\) } "y"`
359			`reach "dl_main" "run segv" $displacement`
360
361			`if $ifmain {`
362			`test_core $file $displacement`
363
364			`test_attach $file $displacement`
365			`}`
366
367			`if !$trynosym {`
368			`return`
369			`}`
370
371			`global pf_prefix`
372			`set old_ldprefix $pf_prefix`
373			`lappend pf_prefix "symbol-less:"`
374
375			# Test also `exec-file'-command loaded $FILE - therefore without symbols.
376			`# SYMBOL_OBJFILE is not available and only EXEC_BFD must be used.`
377
378			`gdb_exit`
379			`gdb_start`
380			`# Clear it to never find any separate debug infos in $debug_root.`
381			`gdb_test_no_output "set debug-file-directory"`
382			`gdb_reinitialize_dir $srcdir/$subdir`
383
384			`# Print the "PIE (Position Independent Executable) displacement" message.`
385			`gdb_test_no_output "set verbose on"`
386
387			# Test no (error) message has been printed by `exec-file'.
388			`set escapedfile [string_to_regexp $file]`
389			`gdb_test "exec-file $file" "exec-file $escapedfile" "load"`
390
391			`if $ifmain {`
392			`reach "dl_main" run $displacement`
393
394			`set test "info files"`
395			`set entrynohex ""`
396			`gdb_test_multiple $test $test {`
397			`-re "\r\n\[\t \]Entry point:\[\t \]0x(\[0-9a-f\]+)\r\n.*$gdb_prompt $" {`
398			`set entrynohex $expect_out(1,string)`
399			`pass $test`
400			`}`
401			`}`
402			`if {$entrynohex != ""} {`
403			`gdb_test "break *0x$entrynohex" "" "break at entry point"`
404			`gdb_test "continue" "\r\nBreakpoint \[0-9\]+, 0x0$entrynohex in ." "entry point reached"`
405			`}`
406			`} else {`
407			`# There is no symbol to break at ld.so. Moreover it can exit with an`
408			`# error code.`
409
410			`set test "ld.so exit"`
411			`set test_displacement "seen displacement message as $displacement"`
412			`gdb_test_multiple "run" $test {`
413			`-re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {`
414			`# Missing "$gdb_prompt $" is intentional.`
415			`if {$expect_out(1,string) == "0x0"} {`
416			`set case "ZERO"`
417			`} else {`
418			`set case "NONZERO"`
419			`}`
420			`if {$displacement == $case} {`
421			`pass $test_displacement`
422			`set displacement "FOUND-$displacement"`
423			`} else {`
424			`fail $test_displacement`
425			`}`
426			`exp_continue`
427			`}`
428			`-re "Program exited (normally\|with code \[0-9\]+)\\.\r\n$gdb_prompt $" {`
429			`# Do not check the binary filename as it may be truncated.`
430			`pass $test`
431			`}`
432			`}`
433			`if ![regexp {^(NONE\|FOUND-.*)$} $displacement] {`
434			`fail $test_displacement`
435			`}`
436			`}`
437
438			`set pf_prefix $old_ldprefix`
439			`}`
440
441			`# Create separate binaries for each testcase - to make the possible reported`
442			`# problem reproducible after the whole test run finishes.`
443
444			`set old_ldprefix $pf_prefix`
445			`foreach ldprelink {NO YES} {`
446			`foreach ldsepdebug {NO IN SEP} {`
447			`# Skip running the ldsepdebug test if we do not have system separate`
448			`# debug info available.`
449			`if {$interp_system_debug == "" && $ldsepdebug == "SEP"} {`
450			`continue`
451			`}`
452
453			`set ldname "LDprelink${ldprelink}debug${ldsepdebug}"`
454			`set interp $binprefix-$ldname`
455
456			`# prelink needs to always prelink all the dependencies to do any file`
457			`# modifications of its files. ld.so also needs all the dependencies to`
458			`# be prelinked to omit the relocation process. In-memory file offsets`
459			`# are not dependent whether ld.so went the prelink way or through the`
460			`# relocation process.`
461			`#`
462			`# For GDB we are not interested whether prelink succeeds as it is`
463			`# transparent to GDB. GDB is being tested for differences of file`
464			`# offsets vs. in-memory offsets. So we have to prelink even ld.so for`
465			`# the BIN modification to happen but we need to restore the original`
466			`# possibly unprelinked ld.so to test all the combinations for GDB.`
467			`set interp_saved ${interp}-saved`
468
469			`set pf_prefix $old_ldprefix`
470			`lappend pf_prefix "$ldname:"`
471
472			`if {$ldsepdebug == "NO"} {`
473			`file_copy $interp_system $interp`
474			`# Never call strip-debug before unprelink:`
475			`# prelink: ...: Section .note.gnu.build-id created after prelinking`
476			`if ![prelinkNO $interp] {`
477			`continue`
478			`}`
479			`strip_debug $interp`
480			`} elseif {$ldsepdebug == "IN" && $interp_system_debug == ""} {`
481			`file_copy $interp_system $interp`
482			`} elseif {$ldsepdebug == "IN" && $interp_system_debug != ""} {`
483			`file_copy $interp_system $interp`
484			`file_copy $interp_system_debug "${interp}.debug"`
485			`# eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u`
486			`if {![prelinkNO $interp] \|\| ![prelinkNO "${interp}.debug"]} {`
487			`continue`
488			`}`
489			`set test "eu-unstrip unprelinked:[file tail $interp_system] + [file tail $interp_system_debug] to [file tail $interp]"`
490			`set command "exec eu-unstrip -o $interp $interp ${interp}.debug"`
491			`verbose -log "command is $command"`
492			`if [catch $command] {`
493			`setup_xfail --*`
494			`fail $test`
495			`continue`
496			`} else {`
497			`pass $test`
498			`}`
499			`} elseif {$ldsepdebug == "SEP" && $interp_system_debug == ""} {`
500			`file_copy $interp_system $interp`
501			`# eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u`
502			`if ![prelinkNO $interp] {`
503			`continue`
504			`}`
505			`gdb_gnu_strip_debug $interp`
506			`} elseif {$ldsepdebug == "SEP" && $interp_system_debug != ""} {`
507			`file_copy $interp_system $interp`
508			`file_copy $interp_system_debug "${interp}.debug"`
509			`}`
510
511			`if {$ldsepdebug == "SEP"} {`
512			`if ![prelinkNO "${interp}.debug"] {`
513			`continue`
514			`}`
515			`} else {`
516			`file delete "${interp}.debug"`
517			`}`
518
519			`if ![prelink$ldprelink $interp] {`
520			`continue`
521			`}`
522			`if {$ldprelink == "NO"} {`
523			`set displacement "NONZERO"`
524			`} else {`
525			`set displacement "ZERO"`
526			`}`
527			`test_ld $interp 0 [expr {$ldsepdebug == "NO"}] $displacement`
528
529			`if ![file_copy $interp $interp_saved] {`
530			`continue`
531			`}`
532			`set old_binprefix $pf_prefix`
533			`foreach binprelink {NO YES} {`
534			`foreach binsepdebug {NO IN SEP} {`
535			`# "ATTACH" is like "YES" but it is modified during run.`
536			`# It cannot be used for problem reproducibility after the`
537			`# testcase ends.`
538			`foreach binpie {NO YES ATTACH} {`
539			`# This combination is not possible, non-PIE (fixed address)`
540			`# binary cannot be prelinked to any (other) address.`
541			`if {$binprelink == "YES" && $binpie == "NO"} {`
542			`continue`
543			`}`
544
545			`set binname "BINprelink${binprelink}debug${binsepdebug}pie${binpie}"`
546			`set exec $binprefix-$binname`
547
548			`set pf_prefix $old_binprefix`
549			`lappend pf_prefix "$binname:"`
550
551			`set opts "additional_flags=-Wl,$binfile_lib,-rpath,[file dirname $binfile_lib]"`
552			`if {$binsepdebug != "NO"} {`
553			`lappend opts {debug}`
554			`}`
555			`if {$binpie != "NO"} {`
556			`lappend opts {additional_flags=-fPIE -pie}`
557			`}`
558
559			`set dir ${exec}.d`
560			`set relink_args [build_executable_own_libs ${test}.exp [file tail $exec] $srcfile $opts $interp $dir]`
561			`if {$relink_args == ""} {`
562			`continue;`
563			`}`
564
565			`if {$binsepdebug == "SEP"} {`
566			`gdb_gnu_strip_debug $exec`
567			`}`
568
569			`if {$binpie == "NO"} {`
570			`set displacement "NONE"`
571			`} elseif {$binprelink == "NO"} {`
572			`set displacement "NONZERO"`
573			`} else {`
574			`set displacement "ZERO"`
575			`}`
576
577			`if {[prelink$binprelink $relink_args [file tail $exec]]`
578			`&& [file_copy $interp_saved $interp]} {`
579			`if {$binpie != "ATTACH"} {`
580			`test_ld $exec 1 [expr {$binsepdebug == "NO"}] $displacement`
581			`} else {`
582			`# If the file has been randomly prelinked it must`
583			`# be "NONZERO". We could see "ZERO" only if it was`
584			`# unprelinked and it is now running at the same`
585			`# address - which is 0 but executable can never run`
586			`# at address 0.`
587
588			`set displacement "NONZERO"`
589			`test_attach $exec $displacement $relink_args`
590
591			`# ATTACH means that executables and libraries have`
592			`# been modified after they have been run. They`
593			`# cannot be reused for problem reproducibility after`
594			`# the testcase ends in the ATTACH case. Therefore`
595			`# they are rather deleted not to confuse after the`
596			`# run finishes.`
597			`set exec_debug [system_debug_get $exec]`
598			`if {$exec_debug != ""} {`
599			# `file delete [glob "${exec_debug}*"]' does not work.
600			`foreach f [glob "${exec_debug}*"] {`
601			`file delete $f`
602			`}`
603			`}`
604			`file delete -force $dir`
605			# `file delete [glob "${exec}*"]' does not work.
606			`foreach f [glob "${exec}*"] {`
607			`file delete $f`
608			`}`
609			`}`
610			`}`
611			`}`
612			`}`
613			`}`
614
615			`file delete $interp_saved`
616			`}`
617			`}`
618			`set pf_prefix $old_ldprefix`