gdb/testsuite/gdb.base/corefile.exp

   1 # Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2007, 2008
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Fred Fish. (fnf@cygnus.com)
  18
  19 if $tracelevel then {
  20         strace $tracelevel
  21 }
  22
  23 set prms_id 0
  24 set bug_id 0
  25
  26 # are we on a target board
  27 if ![isnative] then {
  28     return
  29 }
  30
  31 set testfile "coremaker"
  32 set srcfile ${testfile}.c
  33 set binfile ${objdir}/${subdir}/${testfile}
  34 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  35      untested corefile.exp
  36      return -1
  37 }
  38
  39 # Create and source the file that provides information about the compiler
  40 # used to compile the test case.
  41 if [get_compiler_info ${binfile}] {
  42     return -1;
  43 }
  44
  45 # Create a core file named "corefile" rather than just "core", to
  46 # avoid problems with sys admin types that like to regularly prune all
  47 # files named "core" from the system.
  48 #
  49 # Arbitrarily try setting the core size limit to "unlimited" since
  50 # this does not hurt on systems where the command does not work and
  51 # allows us to generate a core on systems where it does.
  52 #
  53 # Some systems append "core" to the name of the program; others append
  54 # the name of the program to "core"; still others (like Linux, as of
  55 # May 2003) create cores named "core.PID".  In the latter case, we
  56 # could have many core files lying around, and it may be difficult to
  57 # tell which one is ours, so let's run the program in a subdirectory.
  58 set found 0
  59 set coredir "${objdir}/${subdir}/coredir.[getpid]"
  60 file mkdir $coredir
  61 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile}; true) >/dev/null 2>&1\""
  62 #      remote_exec host "${binfile}"
  63 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
  64     if [remote_file build exists $i] {
  65         remote_exec build "mv $i ${objdir}/${subdir}/corefile"
  66         set found 1
  67     }
  68 }
  69 # Check for "core.PID".
  70 if { $found == 0 } {
  71     set names [glob -nocomplain -directory $coredir core.*]
  72     if {[llength $names] == 1} {
  73         set corefile [file join $coredir [lindex $names 0]]
  74         remote_exec build "mv $corefile ${objdir}/${subdir}/corefile"
  75         set found 1
  76     }
  77 }
  78 if { $found == 0 } {
  79     # The braindamaged HPUX shell quits after the ulimit -c above
  80     # without executing ${binfile}.  So we try again without the
  81     # ulimit here if we didn't find a core file above.
  82     # Oh, I should mention that any "braindamaged" non-Unix system has
  83     # the same problem. I like the cd bit too, it's really neat'n stuff.
  84     catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
  85     foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
  86         if [remote_file build exists $i] {
  87             remote_exec build "mv $i ${objdir}/${subdir}/corefile"
  88             set found 1
  89         }
  90     }
  91 }
  92
  93 # Try to clean up after ourselves.
  94 remote_file build delete [file join $coredir coremmap.data]
  95 remote_exec build "rmdir $coredir"
  96
  97 if { $found == 0  } {
  98     warning "can't generate a core file - core tests suppressed - check ulimit -c"
  99     return 0
 100 }
 101
 102 #
 103 # Test that we can simply startup with a "-core=corefile" command line arg
 104 # and recognize that the core file is a valid, usable core file.
 105 # To do this, we must shutdown the currently running gdb and restart
 106 # with the -core args.  We can't use gdb_start because it looks for
 107 # the first gdb prompt, and the message we are looking for occurs
 108 # before the first prompt.
 109 #
 110 # Another problem is that on some systems (solaris for example), there
 111 # is apparently a limit on the length of a fully specified path to
 112 # the coremaker executable, at about 80 chars.  For this case, consider
 113 # it a pass, but note that the program name is bad.
 114
 115 gdb_exit
 116 if $verbose>1 then {
 117     send_user "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS -core=$objdir/$subdir/corefile\n"
 118 }
 119
 120 set oldtimeout $timeout
 121 set timeout [expr "$timeout + 60"]
 122 verbose "Timeout is now $timeout seconds" 2
 123 eval "spawn $GDB $INTERNAL_GDBFLAGS $GDBFLAGS -core=$objdir/$subdir/corefile"
 124 expect {
 125     -re "Couldn't find .* registers in core file.*$gdb_prompt $" {
 126         fail "args: -core=corefile (couldn't find regs)"
 127     }
 128     -re "Core was generated by .*coremaker.*\r\n\#0  .*\(\).*\r\n$gdb_prompt $" {
 129         pass "args: -core=corefile"
 130     }
 131     -re "Core was generated by .*\r\n\#0  .*\(\).*\r\n$gdb_prompt $" {
 132         pass "args: -core=corefile (with bad program name)"
 133     }
 134     -re ".*registers from core file: File in wrong format.* $" {
 135         fail "args: -core=corefile (could not read registers from core file)"
 136     }
 137     -re ".*$gdb_prompt $"       { fail "args: -core=corefile" }
 138     timeout             { fail "(timeout) starting with -core" }
 139 }
 140
 141
 142 #
 143 # Test that startup with both an executable file and -core argument.
 144 # See previous comments above, they are still applicable.
 145 #
 146
 147 close;
 148
 149 if $verbose>1 then {
 150     send_user "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS $binfile -core=$objdir/$subdir/corefile\n"
 151 }
 152
 153
 154 eval "spawn $GDB $INTERNAL_GDBFLAGS $GDBFLAGS $binfile -core=$objdir/$subdir/corefile";
 155 expect {
 156     -re "Core was generated by .*coremaker.*\r\n\#0  .*\(\).*\r\n$gdb_prompt $" {
 157         pass "args: execfile -core=corefile"
 158     }
 159     -re "Core was generated by .*\r\n\#0  .*\(\).*\r\n$gdb_prompt $"     {
 160         pass "args: execfile -core=corefile (with bad program name)"
 161     }
 162     -re ".*registers from core file: File in wrong format.* $" {
 163         fail "args: execfile -core=corefile (could not read registers from core file)"
 164     }
 165     -re ".*$gdb_prompt $"       { fail "args: execfile -core=corefile" }
 166     timeout             { fail "(timeout) starting with -core" }
 167 }
 168 set timeout $oldtimeout
 169 verbose "Timeout is now $timeout seconds" 2
 170
 171 close;
 172
 173 # Now restart normally.
 174
 175 gdb_start
 176 gdb_reinitialize_dir $srcdir/$subdir
 177 gdb_load ${binfile}
 178
 179 # Test basic corefile recognition via core-file command.
 180
 181 send_gdb "core-file $objdir/$subdir/corefile\n"
 182 gdb_expect {
 183     -re ".* program is being debugged already.*y or n. $" {
 184         # gdb_load may connect us to a gdbserver.
 185         send_gdb "y\n"
 186         exp_continue;
 187     }
 188     -re "Core was generated by .*coremaker.*\r\n\#0  .*\(\).*\r\n$gdb_prompt $" {
 189         pass "core-file command"
 190     }
 191     -re "Core was generated by .*\r\n\#0  .*\(\).*\r\n$gdb_prompt $" {
 192         pass "core-file command (with bad program name)"
 193     }
 194     -re ".*registers from core file: File in wrong format.* $" {
 195         fail "core-file command (could not read registers from core file)"
 196     }
 197     -re ".*$gdb_prompt $"       { fail "core-file command" }
 198     timeout             { fail "(timeout) core-file command" }
 199 }
 200
 201 # Test correct mapping of corefile sections by printing some variables.
 202
 203 gdb_test "print coremaker_data" "\\\$$decimal = 202"
 204 gdb_test "print coremaker_bss" "\\\$$decimal = 10"
 205 gdb_test "print coremaker_ro" "\\\$$decimal = 201"
 206
 207 gdb_test "print func2::coremaker_local" "\\\$$decimal = \\{0, 1, 2, 3, 4\\}"
 208
 209 # Somehow we better test the ability to read the registers out of the core
 210 # file correctly.  I don't think the other tests do this.
 211
 212 gdb_test "bt" "abort.*func2.*func1.*main.*" "backtrace in corefile.exp"
 213 gdb_test "up" "#\[0-9\]* *\[0-9xa-fH'\]* in .* \\(.*\\).*" "up in corefile.exp"
 214
 215 # Test ability to read mmap'd data
 216
 217 gdb_test "x/8bd buf1" ".*:.*0.*1.*2.*3.*4.*5.*6.*7" "accessing original mmap data in core file"
 218 setup_xfail "*-*-sunos*" "*-*-ultrix*" "*-*-aix*"
 219 set test "accessing mmapped data in core file"
 220 gdb_test_multiple "x/8bd buf2" "$test" {
 221     -re ".*:.*0.*1.*2.*3.*4.*5.*6.*7.*$gdb_prompt $" {
 222         pass "$test"
 223     }
 224     -re "0x\[f\]*:.*Cannot access memory at address 0x\[f\]*.*$gdb_prompt $" {
 225         fail "$test (mapping failed at runtime)"
 226     }
 227     -re "0x.*:.*Cannot access memory at address 0x.*$gdb_prompt $" {
 228         fail "$test (mapping address not found in core file)"
 229     }
 230 }
 231
 232 # test reinit_frame_cache
 233
 234 gdb_load ${binfile}
 235 gdb_test "up" "#\[0-9\]* *\[0-9xa-fH'\]* in .* \\(.*\\).*" "up in corefile.exp (reinit)"
 236
 237 gdb_test "core" "No core file now."