gdb/testsuite/gdb.base/auxv.exp

   1 # Test `info auxv' and related functionality.
   2
   3 # Copyright 1992,1993,1994,1995,1996,1997,1998,1999,2000,2004
   4 #       Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 # Please email any bugs, comments, and/or additions to this file to:
  21 # bug-gdb@prep.ai.mit.edu
  22
  23 # This file is based on corefile.exp which was written by Fred
  24 # Fish. (fnf@cygnus.com)
  25
  26 if $tracelevel then {
  27         strace $tracelevel
  28 }
  29
  30 set prms_id 0
  31 set bug_id 0
  32
  33 set testfile "auxv"
  34 set srcfile ${testfile}.c
  35 set binfile ${objdir}/${subdir}/${testfile}
  36 set corefile ${objdir}/${subdir}/${testfile}.corefile
  37 set gcorefile ${objdir}/${subdir}/${testfile}.gcore
  38
  39 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  40      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  41 }
  42
  43 # Use a fresh directory to confine the native core dumps.
  44 # Make it the working directory for gdb and its child.
  45 set coredir "${objdir}/${subdir}/coredir.[getpid]"
  46 file mkdir $coredir
  47 set core_works [isnative]
  48
  49 # Run GDB on the test program up to where it will dump core.
  50
  51 gdb_exit
  52 gdb_start
  53 gdb_reinitialize_dir $srcdir/$subdir
  54 gdb_load ${binfile}
  55 gdb_test "set print sevenbit-strings" "" \
  56         "set print sevenbit-strings; ${testfile}"
  57 gdb_test "set width 0" "" \
  58         "set width 0; ${testfile}"
  59
  60 if {$core_works} {
  61     if {[gdb_test "cd $coredir" ".*Working directory .*" \
  62              "cd to temporary directory for core dumps"]} {
  63         set core_works 0
  64     }
  65 }
  66
  67 if { ![runto_main] } then {
  68     gdb_suppress_tests;
  69 }
  70 set print_core_line [gdb_get_line_number "ABORT;"]
  71 gdb_test "tbreak $print_core_line"
  72 gdb_test continue ".*ABORT;.*"
  73
  74 proc fetch_auxv {test} {
  75     global gdb_prompt
  76
  77     set auxv_lines {}
  78     set bad -1
  79     if {[gdb_test_multiple "info auxv" $test {
  80         -re "info auxv\[\r\n\]+" {
  81             exp_continue
  82         }
  83         -ex "The program has no auxiliary information now" {
  84             set bad 1
  85             exp_continue
  86         }
  87         -ex "Auxiliary vector is empty" {
  88             set bad 1
  89             exp_continue
  90         }
  91         -ex "No auxiliary vector found" {
  92             set bad 1
  93             exp_continue
  94         }
  95         -re "^\[0-9\]+\[ \t\]+(AT_\[^ \t\]+)\[^\r\n\]+\[\r\n\]+" {
  96             lappend auxv_lines $expect_out(0,string)
  97             exp_continue
  98         }
  99         -re "^\[0-9\]+\[ \t\]+\\?\\?\\?\[^\r\n\]+\[\r\n\]+" {
 100             warning "Unrecognized tag value: $expect_out(0,string)"
 101             set bad 1
 102             lappend auxv_lines $expect_out(0,string)
 103             exp_continue
 104         }
 105         -re ".*$gdb_prompt $" {
 106             incr bad
 107         }
 108         -re "^\[^\r\n\]+\[\r\n\]+" {
 109             if {!$bad} {
 110                 warning "Unrecognized output: $expect_out(0,string)"
 111                 set bad 1
 112             }
 113             exp_continue
 114         }
 115     }] != 0} {
 116         return {}
 117     }
 118
 119     if {$bad} {
 120         fail $test
 121         return {}
 122     }
 123
 124     pass $test
 125     return $auxv_lines
 126 }
 127
 128 set live_data [fetch_auxv "info auxv on live process"]
 129
 130 # Now try gcore.
 131 set gcore_works 0
 132 set escapedfilename [string_to_regexp $gcorefile]
 133 gdb_test_multiple "gcore $gcorefile" "gcore" {
 134     -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
 135         pass "gcore"
 136         set gcore_works 1
 137     }
 138     -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
 139         unsupported "gcore"
 140     }
 141 }
 142
 143 # Let the program continue and die.
 144 gdb_test continue ".*Program received signal.*"
 145 gdb_test continue ".*Program terminated with signal.*"
 146
 147 # Now collect the core dump it left.
 148 set test "generate native core dump"
 149 if {$core_works} {
 150     # Find the
 151     set names [glob -nocomplain -directory $coredir *core*]
 152     if {[llength $names] == 1} {
 153         set file [file join $coredir [lindex $names 0]]
 154         remote_exec build "mv $file $corefile"
 155         pass $test
 156     } else {
 157         set core_works 0
 158         warning "can't generate a core file - core tests suppressed - check ulimit -c"
 159         fail $test
 160     }
 161 } else {
 162     unsupported $test
 163 }
 164 remote_exec build "rm -rf $coredir"
 165
 166 # Now we can examine the core files and check that their data matches what
 167 # we saw in the process.  Note that the exact data can vary between runs,
 168 # so it's important that the native core dump file and the gcore-created dump
 169 # both be from the same run of the program as we examined live.
 170
 171 proc do_core_test {works corefile test1 test2} {
 172     if {! $works} {
 173         unsupported $test1
 174         unsupported $test2
 175     } else {
 176         gdb_test "core $corefile" "Core was generated by.*" \
 177             "load core file for $test1" \
 178             "A program is being debugged already.*" "y"
 179         set core_data [fetch_auxv $test1]
 180         global live_data
 181         if {$core_data == $live_data} {
 182             pass $test2
 183         } else {
 184             fail $test2
 185         }
 186     }
 187 }
 188
 189 do_core_test $core_works $corefile \
 190     "info auxv on native core dump" "matching auxv data from live and core"
 191
 192 do_core_test $gcore_works $gcorefile \
 193     "info auxv on gcore-created dump" "matching auxv data from live and gcore"