gdb/testsuite/gdb.base/dbx.exp

   1 # Copyright 1998-1999, 2001, 2007-2012 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
  17 set testfile1 "average"
  18 set testfile2 "sum"
  19 set testfile "dbx-test"
  20 set binfile1 ${objdir}/${subdir}/${testfile1}
  21 set binfile2 ${objdir}/${subdir}/${testfile2}
  22 set binfile ${objdir}/${subdir}/${testfile}
  23
  24
  25
  26 if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {
  27      untested dbx.exp
  28      return -1
  29 }
  30
  31 if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {
  32      untested dbx.exp
  33      return -1
  34 }
  35
  36 if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {
  37      untested dbx.exp
  38      return -1
  39 }
  40
  41 #
  42 # start gdb -- start gdb running, default procedure
  43 #
  44 proc dbx_gdb_start { } {
  45     global verbose
  46     global GDB
  47     global INTERNAL_GDBFLAGS GDBFLAGS
  48     global prompt
  49     global spawn_id
  50     global timeout
  51     verbose "Spawning $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
  52
  53     if { [which $GDB] == 0 } then {
  54         perror "$GDB does not exist."
  55         exit 1
  56     }
  57
  58     set oldtimeout $timeout
  59     set timeout [expr "$timeout + 60"]
  60     eval "spawn $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
  61     gdb_expect {
  62         -re ".*\r\n$gdb_prompt $" {
  63             verbose "GDB initialized."
  64         }
  65         -re "$prompt $" {
  66             perror "GDB never initialized."
  67             return -1
  68         }
  69         timeout         {
  70             perror "(timeout) GDB never initialized."
  71             return -1
  72         }
  73     }
  74     set timeout $oldtimeout
  75     # force the height to "unlimited", so no pagers get used
  76     send_gdb "set height 0\n"
  77     gdb_expect {
  78         -re ".*$prompt $" {
  79             verbose "Setting height to 0." 2
  80         }
  81         timeout {
  82             warning "Couldn't set the height to 0."
  83         }
  84     }
  85     # force the width to "unlimited", so no wraparound occurs
  86     send_gdb "set width 0\n"
  87     gdb_expect {
  88         -re ".*$prompt $" {
  89             verbose "Setting width to 0." 2
  90         }
  91         timeout {
  92             warning "Couldn't set the width to 0."
  93         }
  94     }
  95 }
  96
  97
  98 proc dbx_reinitialize_dir { subdir } {
  99     global gdb_prompt
 100
 101    send_gdb "use\n"
 102     gdb_expect {
 103         -re "Reinitialize source path to empty.*y or n. " {
 104             send_gdb "y\n"
 105             gdb_expect {
 106                 -re "Source directories searched.*$gdb_prompt $" {
 107                     send_gdb "use $subdir\n"
 108                     gdb_expect {
 109                         -re "Source directories searched.*$gdb_prompt $" {
 110                             verbose "Dir set to $subdir"
 111                         }
 112                         -re ".*$gdb_prompt $" {
 113                             perror "Dir \"$subdir\" failed."
 114                         }
 115                     }
 116                 }
 117                 -re ".*$gdb_prompt $" {
 118                     perror "Dir \"$subdir\" failed."
 119                 }
 120             }
 121         }
 122         -re ".*$gdb_prompt $" {
 123             perror "Dir \"$subdir\" failed."
 124         }
 125     }
 126 }
 127
 128 # In "testsuite/config/unix-gdb.exp", the routine "gdb_load"
 129 # is defined as "gdb_file_cmd".  The binding of "gdb_file_cmd"
 130 # is done at invocation time.  Before this file is processed,
 131 # it binds to the definition in "testsuite/lib/gdb.exp"; after
 132 # this file is processed, it binds to this definition.
 133 # TCL lets us overrides a previous routine definition without a
 134 # warning (isn't that special?).
 135 #
 136 # This means that tests before use "file" to load a target, and
 137 # tests afterwards use the pair "symbol-file" "exec-file".
 138 #
 139 # I'm leaving it as it is for now because at the moment it
 140 # is the only test we have of the use of the combination of
 141 # "symbol-file" and "exec-file" to load a debugging target (the
 142 # other definition uses "file".
 143 #
 144 # Symbol-file and exec-file should be tested explicitly, not
 145 # as a side effect of running a particular test (in this case,
 146 # "testsuite/gdb.compat/dbx.exp").
 147 #
 148 # CM: Renamed the procedure so it does not override the orginal file name.
 149 #     Having the test suite change behavior depending on the tests run makes
 150 #     it extremely difficult to reproduce errors. I've also added a
 151 #     "dbx_gdb_load" procedure.  This and only this test will call these
 152 #     procedures now. I also added an "expect" to the "send exec-file" line.
 153 #     The "expect" waits for a prompt to appear. Otherwise, if the tests run
 154 #     too quickly, the caller could send another command before the prompt
 155 #     of this command returns, causing the test to get out of sync and fail
 156 #     seemingly randomly or only on a loaded system.
 157 #
 158 # Problem is, though, that the testsuite config files can override the definition of
 159 # gdb_load (without notice, as was mentioned above). Unfortunately, the gdb_load proc
 160 # that was copied into this test was a copy of the unix native version.
 161 #
 162 # The real problem that we're attempting to solve is how to load an exec and symbol
 163 # file into gdb for a dbx session. So why not just override gdb_file_cmd with the
 164 # right sequence of events, allowing gdb_load to do its normal thing? This way
 165 # remotes and simulators will work, too.
 166 #
 167 # [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.
 168 set old_gdb_file_cmd_args [info args gdb_file_cmd]
 169 set old_gdb_file_cmd_body [info body gdb_file_cmd]
 170
 171 proc gdb_file_cmd {arg} {
 172     global verbose
 173     global loadpath
 174     global loadfile
 175     global GDB
 176     global gdb_prompt
 177     global spawn_id
 178     upvar timeout timeout
 179     global last_loaded_file
 180
 181     set last_loaded_file $arg
 182
 183     if [is_remote host] {
 184         set arg [remote_download host $arg];
 185         if { $arg == "" } {
 186             error "download failed"
 187             return -1;
 188         }
 189     }
 190
 191     send_gdb "symbol-file $arg\n"
 192     gdb_expect {
 193         -re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {
 194             verbose "\t\tLoaded $arg into the $GDB"
 195             send_gdb "exec-file $arg\n"
 196             gdb_expect {
 197                 -re ".*$gdb_prompt $" {
 198                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 199                     return 0
 200                 }
 201                 timeout {
 202                     perror "(timeout) Couldn't load $arg"
 203                     return -1
 204                 }
 205             }
 206             return 0
 207         }
 208         -re "Reading symbols from.*done.*$gdb_prompt $" {
 209             verbose "\t\tLoaded $arg into the $GDB"
 210             send_gdb "exec-file $arg\n"
 211             gdb_expect {
 212                 -re "A program is being debugged already.*Kill it.*y or n. $" {
 213                     send_gdb "y\n"
 214                         verbose "\t\tKilling previous program being debugged"
 215                     exp_continue
 216                 }
 217                 -re ".*$gdb_prompt $" {
 218                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 219                     return 0
 220                 }
 221                 timeout {
 222                     perror "(timeout) Couldn't load $arg"
 223                     return -1
 224                 }
 225             }
 226             return 0
 227         }
 228         -re "has no symbol-table.*$gdb_prompt $" {
 229             perror "$arg wasn't compiled with \"-g\""
 230             return -1
 231         }
 232         -re "Load new symbol table from \".*\".*y or n. $" {
 233             send_gdb "y\n"
 234             exp_continue
 235         }
 236         -re ".*No such file or directory.*$gdb_prompt $" {
 237             perror "($arg) No such file or directory\n"
 238             return -1
 239         }
 240         -re "$gdb_prompt $" {
 241             perror "couldn't load $arg into $GDB."
 242             return -1
 243             }
 244         timeout {
 245             perror "couldn't load $arg into $GDB (timed out)."
 246             return -1
 247         }
 248         eof {
 249             # This is an attempt to detect a core dump, but seems not to
 250             # work.  Perhaps we need to match .* followed by eof, in which
 251             # expect does not seem to have a way to do that.
 252             perror "couldn't load $arg into $GDB (end of file)."
 253             return -1
 254         }
 255     }
 256 }
 257
 258 #
 259 #test_breakpoints
 260 #
 261 proc test_breakpoints { } {
 262     gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."
 263     gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"
 264     gdb_test "stop at average.c:43" "Breakpoint.*at.*: file.*average\.c, line 43.*"
 265     gdb_test "stop in average.c:43" "Usage: stop in <function . address>"
 266     gdb_test "stop at main" "Usage: stop at <line>"
 267 }
 268
 269 #
 270 #test_assign
 271 #
 272 proc test_assign { } {
 273     global decimal
 274     global gdb_prompt
 275
 276     gdb_run_cmd
 277     gdb_expect 30 {
 278         -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }
 279         -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }
 280         -re "$gdb_prompt $" { fail "running to main" }
 281         timeout { fail "running to main (timeout)" }
 282     }
 283     send_gdb "assign first=1\n"
 284     gdb_expect {
 285       -re "No symbol \"first\" in current context.*$" { fail "assign first" }
 286       -re "$gdb_prompt $" { pass "assign first" }
 287       timeout { fail "assign first (timeout)" }
 288     }
 289     gdb_test "print first" ".1 = 1"
 290 }
 291
 292 #
 293 #test_whereis
 294 #
 295 proc test_whereis { } {
 296     gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"
 297 }
 298
 299 #
 300 #test_func
 301 #
 302 proc test_func { } {
 303     gdb_test "cont" ".*" "cont 1"
 304     gdb_test "step" ".*"
 305     # This always fails, but it's not clear why. -sts 1999-08-17
 306     setup_xfail "*-*-*"
 307     gdb_test "func sum" "'sum' not within current stack frame\."
 308     gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."
 309     gdb_test "cont" ".*" "cont 2"
 310     # This always fails, but it's not clear why. -sts 1999-08-17
 311     setup_xfail "*-*-*"
 312     gdb_test "func print_average" ".*in print_average.*\\(list=.*, low=0, high=6\\).*at.*average\.c:24\r\n24\[ \t\]+total = sum\\(list, low, high\\);"
 313 }
 314
 315 # Start with a fresh gdb.
 316
 317 gdb_exit
 318 global GDBFLAGS
 319 set saved_gdbflags $GDBFLAGS
 320
 321 set GDBFLAGS "$GDBFLAGS --dbx"
 322 gdb_start
 323 dbx_reinitialize_dir $srcdir/$subdir
 324 gdb_load ${binfile}
 325
 326 test_breakpoints
 327 test_assign
 328 test_whereis
 329 gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
 330 test_func
 331
 332 #exit and cleanup
 333 gdb_exit
 334
 335 set GDBFLAGS $saved_gdbflags
 336 eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
 337
 338 return 0