gdb/testsuite/gdb.base/dbx.exp

   1 # Copyright 1998, 1999, 2001, 2007, 2008, 2009, 2010
   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
  18 if $tracelevel then {
  19         strace $tracelevel
  20 }
  21
  22 set testfile1 "average"
  23 set testfile2 "sum"
  24 set testfile "dbx-test"
  25 set binfile1 ${objdir}/${subdir}/${testfile1}
  26 set binfile2 ${objdir}/${subdir}/${testfile2}
  27 set binfile ${objdir}/${subdir}/${testfile}
  28
  29
  30
  31 if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {
  32      untested dbx.exp
  33      return -1
  34 }
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {
  37      untested dbx.exp
  38      return -1
  39 }
  40
  41 if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {
  42      untested dbx.exp
  43      return -1
  44 }
  45
  46 #
  47 # start gdb -- start gdb running, default procedure
  48 #
  49 proc dbx_gdb_start { } {
  50     global verbose
  51     global GDB
  52     global INTERNAL_GDBFLAGS GDBFLAGS
  53     global prompt
  54     global spawn_id
  55     global timeout
  56     verbose "Spawning $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
  57
  58     if { [which $GDB] == 0 } then {
  59         perror "$GDB does not exist."
  60         exit 1
  61     }
  62
  63     set oldtimeout $timeout
  64     set timeout [expr "$timeout + 60"]
  65     eval "spawn $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
  66     gdb_expect {
  67         -re ".*\r\n$gdb_prompt $" {
  68             verbose "GDB initialized."
  69         }
  70         -re "$prompt $" {
  71             perror "GDB never initialized."
  72             return -1
  73         }
  74         timeout         {
  75             perror "(timeout) GDB never initialized."
  76             return -1
  77         }
  78     }
  79     set timeout $oldtimeout
  80     # force the height to "unlimited", so no pagers get used
  81     send_gdb "set height 0\n"
  82     gdb_expect {
  83         -re ".*$prompt $" {
  84             verbose "Setting height to 0." 2
  85         }
  86         timeout {
  87             warning "Couldn't set the height to 0."
  88         }
  89     }
  90     # force the width to "unlimited", so no wraparound occurs
  91     send_gdb "set width 0\n"
  92     gdb_expect {
  93         -re ".*$prompt $" {
  94             verbose "Setting width to 0." 2
  95         }
  96         timeout {
  97             warning "Couldn't set the width to 0."
  98         }
  99     }
 100 }
 101
 102
 103 proc dbx_reinitialize_dir { subdir } {
 104     global gdb_prompt
 105
 106    send_gdb "use\n"
 107     gdb_expect {
 108         -re "Reinitialize source path to empty.*y or n. " {
 109             send_gdb "y\n"
 110             gdb_expect {
 111                 -re "Source directories searched.*$gdb_prompt $" {
 112                     send_gdb "use $subdir\n"
 113                     gdb_expect {
 114                         -re "Source directories searched.*$gdb_prompt $" {
 115                             verbose "Dir set to $subdir"
 116                         }
 117                         -re ".*$gdb_prompt $" {
 118                             perror "Dir \"$subdir\" failed."
 119                         }
 120                     }
 121                 }
 122                 -re ".*$gdb_prompt $" {
 123                     perror "Dir \"$subdir\" failed."
 124                 }
 125             }
 126         }
 127         -re ".*$gdb_prompt $" {
 128             perror "Dir \"$subdir\" failed."
 129         }
 130     }
 131 }
 132
 133 # In "testsuite/config/unix-gdb.exp", the routine "gdb_load"
 134 # is defined as "gdb_file_cmd".  The binding of "gdb_file_cmd"
 135 # is done at invocation time.  Before this file is processed,
 136 # it binds to the definition in "testsuite/lib/gdb.exp"; after
 137 # this file is processed, it binds to this definition.
 138 # TCL lets us overrides a previous routine definition without a
 139 # warning (isn't that special?).
 140 #
 141 # This means that tests before use "file" to load a target, and
 142 # tests afterwards use the pair "symbol-file" "exec-file".
 143 #
 144 # I'm leaving it as it is for now because at the moment it
 145 # is the only test we have of the use of the combination of
 146 # "symbol-file" and "exec-file" to load a debugging target (the
 147 # other definition uses "file".
 148 #
 149 # Symbol-file and exec-file should be tested explicitly, not
 150 # as a side effect of running a particular test (in this case,
 151 # "testsuite/gdb.compat/dbx.exp").
 152 #
 153 # CM: Renamed the procedure so it does not override the orginal file name.
 154 #     Having the test suite change behavior depending on the tests run makes
 155 #     it extremely difficult to reproduce errors. I've also added a
 156 #     "dbx_gdb_load" procedure.  This and only this test will call these
 157 #     procedures now. I also added an "expect" to the "send exec-file" line.
 158 #     The "expect" waits for a prompt to appear. Otherwise, if the tests run
 159 #     too quickly, the caller could send another command before the prompt
 160 #     of this command returns, causing the test to get out of sync and fail
 161 #     seemingly randomly or only on a loaded system.
 162 #
 163 # Problem is, though, that the testsuite config files can override the definition of
 164 # gdb_load (without notice, as was mentioned above). Unfortunately, the gdb_load proc
 165 # that was copied into this test was a copy of the unix native version.
 166 #
 167 # The real problem that we're attempting to solve is how to load an exec and symbol
 168 # file into gdb for a dbx session. So why not just override gdb_file_cmd with the
 169 # right sequence of events, allowing gdb_load to do its normal thing? This way
 170 # remotes and simulators will work, too.
 171 #
 172 # [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.
 173 set old_gdb_file_cmd_args [info args gdb_file_cmd]
 174 set old_gdb_file_cmd_body [info body gdb_file_cmd]
 175
 176 proc gdb_file_cmd {arg} {
 177     global verbose
 178     global loadpath
 179     global loadfile
 180     global GDB
 181     global gdb_prompt
 182     global spawn_id
 183     upvar timeout timeout
 184     global last_loaded_file
 185
 186     set last_loaded_file $arg
 187
 188     if [is_remote host] {
 189         set arg [remote_download host $arg];
 190         if { $arg == "" } {
 191             error "download failed"
 192             return -1;
 193         }
 194     }
 195
 196     send_gdb "symbol-file $arg\n"
 197     gdb_expect {
 198         -re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {
 199             verbose "\t\tLoaded $arg into the $GDB"
 200             send_gdb "exec-file $arg\n"
 201             gdb_expect {
 202                 -re ".*$gdb_prompt $" {
 203                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 204                     return 0
 205                 }
 206                 timeout {
 207                     perror "(timeout) Couldn't load $arg"
 208                     return -1
 209                 }
 210             }
 211             return 0
 212         }
 213         -re "Reading symbols from.*done.*$gdb_prompt $" {
 214             verbose "\t\tLoaded $arg into the $GDB"
 215             send_gdb "exec-file $arg\n"
 216             gdb_expect {
 217                 -re "A program is being debugged already.*Kill it.*y or n. $" {
 218                     send_gdb "y\n"
 219                         verbose "\t\tKilling previous program being debugged"
 220                     exp_continue
 221                 }
 222                 -re ".*$gdb_prompt $" {
 223                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 224                     return 0
 225                 }
 226                 timeout {
 227                     perror "(timeout) Couldn't load $arg"
 228                     return -1
 229                 }
 230             }
 231             return 0
 232         }
 233         -re "has no symbol-table.*$gdb_prompt $" {
 234             perror "$arg wasn't compiled with \"-g\""
 235             return -1
 236         }
 237         -re "Load new symbol table from \".*\".*y or n. $" {
 238             send_gdb "y\n"
 239             exp_continue
 240         }
 241         -re ".*No such file or directory.*$gdb_prompt $" {
 242             perror "($arg) No such file or directory\n"
 243             return -1
 244         }
 245         -re "$gdb_prompt $" {
 246             perror "couldn't load $arg into $GDB."
 247             return -1
 248             }
 249         timeout {
 250             perror "couldn't load $arg into $GDB (timed out)."
 251             return -1
 252         }
 253         eof {
 254             # This is an attempt to detect a core dump, but seems not to
 255             # work.  Perhaps we need to match .* followed by eof, in which
 256             # expect does not seem to have a way to do that.
 257             perror "couldn't load $arg into $GDB (end of file)."
 258             return -1
 259         }
 260     }
 261 }
 262
 263 #
 264 #test_breakpoints
 265 #
 266 proc test_breakpoints { } {
 267     gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."
 268     gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"
 269     gdb_test "stop at average.c:43" "Breakpoint.*at.*: file.*average\.c, line 43.*"
 270     gdb_test "stop in average.c:43" "Usage: stop in <function . address>"
 271     gdb_test "stop at main" "Usage: stop at <line>"
 272 }
 273
 274 #
 275 #test_assign
 276 #
 277 proc test_assign { } {
 278     global decimal
 279     global gdb_prompt
 280
 281     gdb_run_cmd
 282     gdb_expect 30 {
 283         -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }
 284         -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }
 285         -re "$gdb_prompt $" { fail "running to main" }
 286         timeout { fail "running to main (timeout)" }
 287     }
 288     send_gdb "assign first=1\n"
 289     gdb_expect {
 290       -re "No symbol \"first\" in current context.*$" { fail "assign first" }
 291       -re "$gdb_prompt $" { pass "assign first" }
 292       timeout { fail "assign first (timeout)" }
 293     }
 294     gdb_test "print first" ".1 = 1"
 295 }
 296
 297 #
 298 #test_whereis
 299 #
 300 proc test_whereis { } {
 301     gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"
 302 }
 303
 304 #
 305 #test_func
 306 #
 307 proc test_func { } {
 308     gdb_test "cont" ".*" "cont 1"
 309     gdb_test "step" ".*"
 310     # This always fails, but it's not clear why. -sts 1999-08-17
 311     setup_xfail "*-*-*"
 312     gdb_test "func sum" "'sum' not within current stack frame\."
 313     gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."
 314     gdb_test "cont" ".*" "cont 2"
 315     # This always fails, but it's not clear why. -sts 1999-08-17
 316     setup_xfail "*-*-*"
 317     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\\);"
 318 }
 319
 320 # Start with a fresh gdb.
 321
 322 gdb_exit
 323 global GDBFLAGS
 324 set saved_gdbflags $GDBFLAGS
 325
 326 set GDBFLAGS "$GDBFLAGS --dbx"
 327 gdb_start
 328 dbx_reinitialize_dir $srcdir/$subdir
 329 gdb_load ${binfile}
 330
 331 test_breakpoints
 332 test_assign
 333 test_whereis
 334 gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
 335 test_func
 336
 337 #exit and cleanup
 338 gdb_exit
 339
 340 set GDBFLAGS $saved_gdbflags
 341 eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
 342
 343 return 0