gdb/testsuite/gdb.base/prelink.exp

   1 # Copyright 2006, 2007, 2008 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 <http://www.gnu.org/licenses/>.
  15
  16 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@gnu.org
  18
  19 # This file was written by Alexandre Oliva <aoliva@redhat.com>
  20
  21 if $tracelevel then {
  22         strace $tracelevel
  23         }
  24
  25 set prms_id 0
  26 set bug_id 0
  27
  28 # are we on a target board
  29 if ![isnative] then {
  30     return
  31 }
  32
  33 if [get_compiler_info "ignored"] {
  34     return -1
  35 }
  36
  37 if {$gcc_compiled == 0} {
  38     return -1
  39 }
  40
  41 set testfile "prelink"
  42
  43 set libsrcfile ${testfile}-lib.c
  44 set libfile ${objdir}/${subdir}/${testfile}.so
  45 if { [gdb_compile "${srcdir}/${subdir}/${libsrcfile}" "${libfile}" executable [list debug "additional_flags=-fpic -shared -nodefaultlibs"]] != ""} {
  46     # If creating the shared library fails, maybe we don't have the right tools
  47     return -1
  48 }
  49
  50 # `--no-exec-shield' is for i386 where prelink in the exec-shield mode is
  51 # forced to push all the libraries tight together to fit into the first two
  52 # memory areas (either the ASCII Shield area or at least below the executable).
  53 # In this case its -R option cannot be applied and we falsely FAIL here as if
  54 # the system is already prelinked prelink has no choice how to randomize the
  55 # single new unprelinked library address without wasting the first one/two
  56 # memory areas.  We do not care of the efficiency of loading such resulting
  57 # exec-shield unfriendly prelinked library.
  58 if {[catch "system \"prelink -qNR --no-exec-shield ${libfile}\""] != 0} {
  59     # Maybe we don't have prelink.
  60     return -1
  61 }
  62
  63 set srcfile ${testfile}.c
  64 set binfile ${objdir}/${subdir}/${testfile}t
  65 if { [gdb_compile "${srcdir}/${subdir}/${srcfile} ${libfile}" "${binfile}" executable [list debug "additional_flags=-Wl,-rpath,${objdir}/${subdir}"]] != ""} {
  66     return -1;
  67 }
  68
  69 set found 0
  70 set coredir "${objdir}/${subdir}/coredir.[getpid]"
  71 file mkdir $coredir
  72 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile}; true) >/dev/null 2>&1\""
  73
  74 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
  75     if [remote_file build exists $i] {
  76         remote_exec build "mv $i ${objdir}/${subdir}/prelink.core"
  77         set found 1
  78     }
  79 }
  80 # Check for "core.PID".
  81 if { $found == 0 } {
  82     set names [glob -nocomplain -directory $coredir core.*]
  83     if {[llength $names] == 1} {
  84         set corefile [file join $coredir [lindex $names 0]]
  85         remote_exec build "mv $corefile ${objdir}/${subdir}/prelink.core"
  86         set found 1
  87     }
  88 }
  89
  90 # Try to clean up after ourselves.
  91 remote_file build delete [file join $coredir coremmap.data]
  92 remote_exec build "rmdir $coredir"
  93
  94 if { $found == 0  } {
  95     warning "can't generate a core file - prelink tests suppressed - check ulimit -c"
  96     return 0
  97 }
  98
  99 if {[catch "system \"prelink -uN ${libfile}\""] != 0} {
 100     untested "${testfile}.so was not prelinked, maybe system libraries are not prelinked?"
 101     return 0
 102 }
 103 catch "system \"prelink -qNR --no-exec-shield ${libfile}\""
 104
 105 # Start with a fresh gdb
 106
 107 gdb_exit
 108 gdb_start
 109 gdb_reinitialize_dir $srcdir/$subdir
 110 gdb_load ${binfile}
 111
 112 set test "prelink"
 113 global gdb_prompt
 114 gdb_test_multiple "core-file $objdir/$subdir/prelink.core" "$test" {
 115     -re "warning: \.dynamic section.*not at the expected address.*warning: difference.*caused by prelink, adjusting expectations.*$gdb_prompt $" {
 116         pass "$test"
 117     }
 118 }
 119
 120 gdb_exit
 121
 122 return 0
 123