gdb/testsuite/gdb.base/dbx.exp

   1 # Copyright 1998, 1999, 2001, 2007 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 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@prep.ai.mit.edu
  18
  19
  20 if $tracelevel then {
  21         strace $tracelevel
  22 }
  23
  24 set testfile1 "average"
  25 set testfile2 "sum"
  26 set testfile "dbx-test"
  27 set binfile1 ${objdir}/${subdir}/${testfile1}
  28 set binfile2 ${objdir}/${subdir}/${testfile2}
  29 set binfile ${objdir}/${subdir}/${testfile}
  30
  31
  32
  33 if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {
  34      untested dbx.exp
  35      return -1
  36 }
  37
  38 if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {
  39      untested dbx.exp
  40      return -1
  41 }
  42
  43 if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {
  44      untested dbx.exp
  45      return -1
  46 }
  47
  48 #
  49 # start gdb -- start gdb running, default procedure
  50 #
  51 proc dbx_gdb_start { } {
  52     global verbose
  53     global GDB
  54     global GDBFLAGS
  55     global prompt
  56     global spawn_id
  57     global timeout
  58     verbose "Spawning $GDB -nw $GDBFLAGS"
  59
  60     if { [which $GDB] == 0 } then {
  61         perror "$GDB does not exist."
  62         exit 1
  63     }
  64
  65     set oldtimeout $timeout
  66     set timeout [expr "$timeout + 60"]
  67     eval "spawn $GDB -nw -dbx $GDBFLAGS"
  68     gdb_expect {
  69         -re ".*\r\n$gdb_prompt $" {
  70             verbose "GDB initialized."
  71         }
  72         -re "$prompt $" {
  73             perror "GDB never initialized."
  74             return -1
  75         }
  76         timeout         {
  77             perror "(timeout) GDB never initialized."
  78             return -1
  79         }
  80     }
  81     set timeout $oldtimeout
  82     # force the height to "unlimited", so no pagers get used
  83     send_gdb "set height 0\n"
  84     gdb_expect {
  85         -re ".*$prompt $" {
  86             verbose "Setting height to 0." 2
  87         }
  88         timeout {
  89             warning "Couldn't set the height to 0."
  90         }
  91     }
  92     # force the width to "unlimited", so no wraparound occurs
  93     send_gdb "set width 0\n"
  94     gdb_expect {
  95         -re ".*$prompt $" {
  96             verbose "Setting width to 0." 2
  97         }
  98         timeout {
  99             warning "Couldn't set the width to 0."
 100         }
 101     }
 102 }
 103
 104
 105 proc dbx_reinitialize_dir { subdir } {
 106     global gdb_prompt
 107
 108    send_gdb "use\n"
 109     gdb_expect {
 110         -re "Reinitialize source path to empty.*y or n. " {
 111             send_gdb "y\n"
 112             gdb_expect {
 113                 -re "Source directories searched.*$gdb_prompt $" {
 114                     send_gdb "use $subdir\n"
 115                     gdb_expect {
 116                         -re "Source directories searched.*$gdb_prompt $" {
 117                             verbose "Dir set to $subdir"
 118                         }
 119                         -re ".*$gdb_prompt $" {
 120                             perror "Dir \"$subdir\" failed."
 121                         }
 122                     }
 123                 }
 124                 -re ".*$gdb_prompt $" {
 125                     perror "Dir \"$subdir\" failed."
 126                 }
 127             }
 128         }
 129         -re ".*$gdb_prompt $" {
 130             perror "Dir \"$subdir\" failed."
 131         }
 132     }
 133 }
 134
 135 # In "testsuite/config/unix-gdb.exp", the routine "gdb_load"
 136 # is defined as "gdb_file_cmd".  The binding of "gdb_file_cmd"
 137 # is done at invocation time.  Before this file is processed,
 138 # it binds to the definition in "testsuite/lib/gdb.exp"; after
 139 # this file is processed, it binds to this definition.
 140 # TCL lets us overrides a previous routine definition without a
 141 # warning (isn't that special?).
 142 #
 143 # This means that tests before use "file" to load a target, and
 144 # tests afterwards use the pair "symbol-file" "exec-file".
 145 #
 146 # I'm leaving it as it is for now because at the moment it
 147 # is the only test we have of the use of the combination of
 148 # "symbol-file" and "exec-file" to load a debugging target (the
 149 # other definition uses "file".
 150 #
 151 # Symbol-file and exec-file should be tested explicitly, not
 152 # as a side effect of running a particular test (in this case,
 153 # "testsuite/gdb.compat/dbx.exp").
 154 #
 155 # CM: Renamed the procedure so it does not override the orginal file name.
 156 #     Having the test suite change behavior depending on the tests run makes
 157 #     it extremely difficult to reproduce errors. I've also added a
 158 #     "dbx_gdb_load" procedure.  This and only this test will call these
 159 #     procedures now. I also added an "expect" to the "send exec-file" line.
 160 #     The "expect" waits for a prompt to appear. Otherwise, if the tests run
 161 #     too quickly, the caller could send another command before the prompt
 162 #     of this command returns, causing the test to get out of sync and fail
 163 #     seemingly randomly or only on a loaded system.
 164 #
 165 # Problem is, though, that the testsuite config files can override the definition of
 166 # gdb_load (without notice, as was mentioned above). Unfortunately, the gdb_load proc
 167 # that was copied into this test was a copy of the unix native version.
 168 #
 169 # The real problem that we're attempting to solve is how to load an exec and symbol
 170 # file into gdb for a dbx session. So why not just override gdb_file_cmd with the
 171 # right sequence of events, allowing gdb_load to do its normal thing? This way
 172 # remotes and simulators will work, too.
 173 #
 174 # [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.
 175 set old_gdb_file_cmd_args [info args gdb_file_cmd]
 176 set old_gdb_file_cmd_body [info body gdb_file_cmd]
 177
 178 proc gdb_file_cmd {arg} {
 179     global verbose
 180     global loadpath
 181     global loadfile
 182     global GDB
 183     global gdb_prompt
 184     global spawn_id
 185     upvar timeout timeout
 186     global last_loaded_file
 187
 188     set last_loaded_file $arg
 189
 190     if [is_remote host] {
 191         set arg [remote_download host $arg];
 192         if { $arg == "" } {
 193             error "download failed"
 194             return -1;
 195         }
 196     }
 197
 198     send_gdb "symbol-file $arg\n"
 199     gdb_expect {
 200         -re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {
 201             verbose "\t\tLoaded $arg into the $GDB"
 202             send_gdb "exec-file $arg\n"
 203             gdb_expect {
 204                 -re ".*$gdb_prompt $" {
 205                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 206                     return 0
 207                 }
 208                 timeout {
 209                     perror "(timeout) Couldn't load $arg"
 210                     return -1
 211                 }
 212             }
 213             return 0
 214         }
 215         -re "Reading symbols from.*done.*$gdb_prompt $" {
 216             verbose "\t\tLoaded $arg into the $GDB"
 217             send_gdb "exec-file $arg\n"
 218             gdb_expect {
 219                 -re "A program is being debugged already.*Kill it.*y or n. $" {
 220                     send_gdb "y\n"
 221                         verbose "\t\tKilling previous program being debugged"
 222                     exp_continue
 223                 }
 224                 -re ".*$gdb_prompt $" {
 225                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 226                     return 0
 227                 }
 228                 timeout {
 229                     perror "(timeout) Couldn't load $arg"
 230                     return -1
 231                 }
 232             }
 233             return 0
 234         }
 235         -re "has no symbol-table.*$gdb_prompt $" {
 236             perror "$arg wasn't compiled with \"-g\""
 237             return -1
 238         }
 239         -re "Load new symbol table from \".*\".*y or n. $" {
 240             send_gdb "y\n"
 241             exp_continue
 242         }
 243         -re ".*No such file or directory.*$gdb_prompt $" {
 244             perror "($arg) No such file or directory\n"
 245             return -1
 246         }
 247         -re "$gdb_prompt $" {
 248             perror "couldn't load $arg into $GDB."
 249             return -1
 250             }
 251         timeout {
 252             perror "couldn't load $arg into $GDB (timed out)."
 253             return -1
 254         }
 255         eof {
 256             # This is an attempt to detect a core dump, but seems not to
 257             # work.  Perhaps we need to match .* followed by eof, in which
 258             # expect does not seem to have a way to do that.
 259             perror "couldn't load $arg into $GDB (end of file)."
 260             return -1
 261         }
 262     }
 263 }
 264
 265 #
 266 #test_breakpoints
 267 #
 268 proc test_breakpoints { } {
 269     gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."
 270     gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"
 271     gdb_test "stop at average.c:43" "Breakpoint.*at.*: file.*average\.c, line 43.*"
 272     gdb_test "stop in average.c:43" "Usage: stop in <function . address>"
 273     gdb_test "stop at main" "Usage: stop at <line>"
 274 }
 275
 276 #
 277 #test_assign
 278 #
 279 proc test_assign { } {
 280     global decimal
 281     global gdb_prompt
 282
 283     gdb_run_cmd
 284     gdb_expect 30 {
 285         -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }
 286         -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }
 287         -re "$gdb_prompt $" { fail "running to main" }
 288         timeout { fail "running to main (timeout)" }
 289     }
 290     send_gdb "assign first=1\n"
 291     gdb_expect {
 292       -re "No symbol \"first\" in current context.*$" { fail "assign first" }
 293       "$gdb_prompt $" { pass "assign first" }
 294       timeout { fail "assign first (timeout)" }
 295     }
 296     gdb_test "print first" ".1 = 1"
 297 }
 298
 299 #
 300 #test_whereis
 301 #
 302 proc test_whereis { } {
 303     gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"
 304 }
 305
 306 #
 307 #test_func
 308 #
 309 proc test_func { } {
 310     gdb_test "cont" "" "cont 1"
 311     gdb_test "step" ""
 312     # This always fails, but it's not clear why. -sts 1999-08-17
 313     setup_xfail "*-*-*"
 314     gdb_test "func sum" "'sum' not within current stack frame\."
 315     gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."
 316     gdb_test "cont" "" "cont 2"
 317     # This always fails, but it's not clear why. -sts 1999-08-17
 318     setup_xfail "*-*-*"
 319     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\\);"
 320 }
 321
 322 # Start with a fresh gdb.
 323
 324 gdb_exit
 325 global GDBFLAGS
 326 set saved_gdbflags $GDBFLAGS
 327
 328 set GDBFLAGS "$GDBFLAGS --dbx"
 329 gdb_start
 330 dbx_reinitialize_dir $srcdir/$subdir
 331 gdb_load ${binfile}
 332
 333 test_breakpoints
 334 test_assign
 335 test_whereis
 336 gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
 337 test_func
 338
 339 #exit and cleanup
 340 gdb_exit
 341
 342 set GDBFLAGS $saved_gdbflags
 343 eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
 344
 345 return 0