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 { ! [istarget "*-*-linux*"] && ! [istarget "*-*-solaris*"] } {
  27     verbose "Skipping auxv.exp because of lack of support."
  28     return
  29 }
  30
  31 if $tracelevel then {
  32         strace $tracelevel
  33 }
  34
  35 set prms_id 0
  36 set bug_id 0
  37
  38 set testfile "auxv"
  39 set srcfile ${testfile}.c
  40 set binfile ${objdir}/${subdir}/${testfile}
  41 set corefile ${objdir}/${subdir}/${testfile}.corefile
  42 set gcorefile ${objdir}/${subdir}/${testfile}.gcore
  43
  44 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  45     untested "couldn't compile ${srcdir}/${subdir}/${srcfile}"
  46     return -1
  47 }
  48
  49 # Use a fresh directory to confine the native core dumps.
  50 # Make it the working directory for gdb and its child.
  51 set coredir "${objdir}/${subdir}/coredir.[getpid]"
  52 file mkdir $coredir
  53 set core_works [isnative]
  54
  55 # Run GDB on the test program up to where it will dump core.
  56
  57 gdb_exit
  58 gdb_start
  59 gdb_reinitialize_dir $srcdir/$subdir
  60 gdb_load ${binfile}
  61 gdb_test "set print sevenbit-strings" "" \
  62         "set print sevenbit-strings; ${testfile}"
  63 gdb_test "set width 0" "" \
  64         "set width 0; ${testfile}"
  65
  66 if {$core_works} {
  67     if {[gdb_test "cd $coredir" ".*Working directory .*" \
  68              "cd to temporary directory for core dumps"]} {
  69         set core_works 0
  70     }
  71 }
  72
  73 if { ![runto_main] } then {
  74     gdb_suppress_tests;
  75 }
  76 set print_core_line [gdb_get_line_number "ABORT;"]
  77 gdb_test "tbreak $print_core_line"
  78 gdb_test continue ".*ABORT;.*"
  79
  80 proc fetch_auxv {test} {
  81     global gdb_prompt
  82
  83     set auxv_lines {}
  84     set bad -1
  85     if {[gdb_test_multiple "info auxv" $test {
  86         -re "info auxv\[\r\n\]+" {
  87             exp_continue
  88         }
  89         -ex "The program has no auxiliary information now" {
  90             set bad 1
  91             exp_continue
  92         }
  93         -ex "Auxiliary vector is empty" {
  94             set bad 1
  95             exp_continue
  96         }
  97         -ex "No auxiliary vector found" {
  98             set bad 1
  99             exp_continue
 100         }
 101         -re "^\[0-9\]+\[ \t\]+(AT_\[^ \t\]+)\[^\r\n\]+\[\r\n\]+" {
 102             lappend auxv_lines $expect_out(0,string)
 103             exp_continue
 104         }
 105         -re "^\[0-9\]+\[ \t\]+\\?\\?\\?\[^\r\n\]+\[\r\n\]+" {
 106             warning "Unrecognized tag value: $expect_out(0,string)"
 107             set bad 1
 108             lappend auxv_lines $expect_out(0,string)
 109             exp_continue
 110         }
 111         -re ".*$gdb_prompt $" {
 112             incr bad
 113         }
 114         -re "^\[^\r\n\]+\[\r\n\]+" {
 115             if {!$bad} {
 116                 warning "Unrecognized output: $expect_out(0,string)"
 117                 set bad 1
 118             }
 119             exp_continue
 120         }
 121     }] != 0} {
 122         return {}
 123     }
 124
 125     if {$bad} {
 126         fail $test
 127         return {}
 128     }
 129
 130     pass $test
 131     return $auxv_lines
 132 }
 133
 134 set live_data [fetch_auxv "info auxv on live process"]
 135
 136 # Now try gcore.
 137 set gcore_works 0
 138 set escapedfilename [string_to_regexp $gcorefile]
 139 gdb_test_multiple "gcore $gcorefile" "gcore" {
 140     -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
 141         pass "gcore"
 142         set gcore_works 1
 143     }
 144     -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
 145         unsupported "gcore"
 146     }
 147     -re "Undefined command: .*\[\r\n\]+$gdb_prompt $" {
 148         unsupported "gcore"
 149     }
 150 }
 151
 152 # Let the program continue and die.
 153 gdb_test continue ".*Program received signal.*"
 154 gdb_test continue ".*Program terminated with signal.*"
 155
 156 # Now collect the core dump it left.
 157 set test "generate native core dump"
 158 if {$core_works} {
 159     # Find the
 160     set names [glob -nocomplain -directory $coredir *core*]
 161     if {[llength $names] == 1} {
 162         set file [file join $coredir [lindex $names 0]]
 163         remote_exec build "mv $file $corefile"
 164         pass $test
 165     } else {
 166         set core_works 0
 167         warning "can't generate a core file - core tests suppressed - check ulimit -c"
 168         fail $test
 169     }
 170 } else {
 171     unsupported $test
 172 }
 173 remote_exec build "rm -rf $coredir"
 174
 175 # Now we can examine the core files and check that their data matches what
 176 # we saw in the process.  Note that the exact data can vary between runs,
 177 # so it's important that the native core dump file and the gcore-created dump
 178 # both be from the same run of the program as we examined live.
 179
 180 proc do_core_test {works corefile test1 test2} {
 181     if {! $works} {
 182         unsupported $test1
 183         unsupported $test2
 184     } else {
 185         gdb_test "core $corefile" "Core was generated by.*" \
 186             "load core file for $test1" \
 187             "A program is being debugged already.*" "y"
 188         set core_data [fetch_auxv $test1]
 189         global live_data
 190         if {$core_data == $live_data} {
 191             pass $test2
 192         } else {
 193             fail $test2
 194         }
 195     }
 196 }
 197
 198 do_core_test $core_works $corefile \
 199     "info auxv on native core dump" "matching auxv data from live and core"
 200
 201 do_core_test $gcore_works $gcorefile \
 202     "info auxv on gcore-created dump" "matching auxv data from live and gcore"