gdb/testsuite/gdb.base/macscp.exp

   1 # Test macro scoping.
   2 # Copyright 2002, 2007 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 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 if $tracelevel then {
  21     strace $tracelevel
  22 }
  23
  24 set prms_id 0
  25 set bug_id 0
  26
  27 set testfile "macscp"
  28 set binfile ${objdir}/${subdir}/${testfile}
  29
  30 if  {[gdb_compile "${srcdir}/${subdir}/macscp1.c" "${binfile}" executable {debug}] != "" } {
  31     untested macscp.exp
  32     return -1
  33 }
  34
  35 gdb_exit
  36 gdb_start
  37 gdb_reinitialize_dir $srcdir/$subdir
  38 gdb_load ${binfile}
  39
  40
  41 # Ask GDB to show the current definition of MACRO, and return a list
  42 # describing the result.
  43 #
  44 # The return value has the form {FILE1 FILE2 ... DEF}, which means
  45 # that MACRO has the definition `DEF', and was defined in `FILE1',
  46 # which was included from `FILE2', included from ... .
  47 #
  48 # If GDB says that MACRO has no definition, return the string `undefined'.
  49 #
  50 # If GDB complains that it doesn't have any information about
  51 # preprocessor macro definitions, return the string `no-macro-info'.
  52 #
  53 # If expect times out waiting for GDB, we return the string `timeout'.
  54 #
  55 # If GDB's output doesn't otherwise match what we're expecting, we
  56 # return the empty string.
  57
  58 proc info_macro {macro} {
  59     global gdb_prompt
  60     global decimal
  61
  62     set filepat {macscp[0-9]+\.[ch]}
  63     set definition {}
  64     set location {}
  65
  66     send_gdb "info macro ${macro}\n"
  67
  68     set debug_me 0
  69
  70     if {$debug_me} {exp_internal 1}
  71     gdb_expect {
  72         -re "Defined at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
  73             # `location' and `definition' should be empty when we see
  74             # this message.
  75             if {[llength $location] == 0 && [llength $definition] == 0} {
  76                 set location $expect_out(1,string)
  77                 exp_continue
  78             } else {
  79                 # Exit this expect loop, with a result indicating failure.
  80                 set definition {}
  81             }
  82         }
  83         -re "The symbol `${macro}' has no definition as a C/C\\+\\+ preprocessor macro\[^\r\n\]*\[\r\n\]" {
  84             # `location' and `definition' should be empty when we see
  85             # this message.
  86             if {[llength $location] == 0 && [llength $definition] == 0} {
  87                 set definition undefined
  88                 exp_continue
  89             } else {
  90                 # Exit this expect loop, with a result indicating failure.
  91                 set definition {}
  92             }
  93         }
  94         -re "^\[\r\n\]*  included at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
  95             # `location' should *not* be empty when we see this
  96             # message.  It should have recorded at least the initial
  97             # `Defined at ' message (for definitions) or ` at' message
  98             # (for undefined symbols).
  99             if {[llength $location] != 0} {
 100                 lappend location $expect_out(1,string)
 101                 exp_continue
 102             } else {
 103                 # Exit this expect loop, with a result indicating failure.
 104                 set definition {}
 105             }
 106         }
 107         -re "^\[\r\n\]*at \[^\r\n\]*(${filepat}):${decimal}\[\r\n\]" {
 108             # This appears after a `has no definition' message.
 109             # `location' should be empty when we see it.
 110             if {[string compare $definition undefined] == 0 \
 111                     && [llength $location] == 0} {
 112                 set location $expect_out(1,string)
 113                 exp_continue
 114             } else {
 115                 # Exit this expect loop, with a result indicating failure.
 116                 set definition {}
 117             }
 118         }
 119         -re "#define ${macro} (\[^\r\n\]*)\[\r\n\]" {
 120             # `definition' should be empty when we see this message.
 121             if {[string compare $definition ""] == 0} {
 122                 set definition $expect_out(1,string)
 123                 exp_continue
 124             } else {
 125                 # Exit this expect loop, with a result indicating failure.
 126                 set definition {}
 127             }
 128         }
 129         -re "has no preprocessor macro information.*$gdb_prompt $" {
 130             set definition no-macro-info
 131         }
 132         -re "$gdb_prompt $" {
 133             # Exit the expect loop; let the existing value of `definition'
 134             # indicate failure or success.
 135         }
 136         timeout {
 137             set definition timeout
 138         }
 139     }
 140     if {$debug_me} {exp_internal 0}
 141
 142     switch -exact -- $definition {
 143         no-macro-info { return no-macro-info }
 144         timeout { return timeout }
 145         undefined -
 146         default {
 147             if {[llength $location] >= 1} {
 148                 return [concat $location [list $definition]]
 149             } else {
 150                 return {}
 151             }
 152         }
 153     }
 154 }
 155
 156
 157 # Call info_macro to show the definition of MACRO.  Expect a result of
 158 # EXPECTED.  Use WHERE in pass/fail messages to identify the context.
 159 # Return non-zero if we should abort the entire test file, or zero if
 160 # we can continue.
 161 proc check_macro {macro expected where} {
 162     set func_def [info_macro $macro]
 163     if {[string compare $func_def $expected] == 0} {
 164         pass "info macro $macro $where"
 165     } else {
 166         switch -exact -- $func_def {
 167             no-macro-info {
 168                 xfail "executable includes no macro debugging information"
 169                 return 1
 170             }
 171             timeout {
 172                 fail "info macro $macro $where (timeout)"
 173             }
 174             default {
 175                 fail "info macro $macro $where"
 176             }
 177         }
 178     }
 179     return 0
 180 }
 181
 182
 183 # List the function FUNC, and then show the definition of MACRO,
 184 # expecting the result EXPECTED.
 185 proc list_and_check_macro {func macro expected} {
 186     gdb_test "list $func" ".*${func}.*"
 187     return [check_macro $macro $expected "after `list $func'"]
 188 }
 189
 190
 191 if {[list_and_check_macro main WHERE {macscp1.c {before macscp1_3}}]} {
 192     return 0
 193 }
 194 list_and_check_macro macscp2_2 WHERE {macscp2.h macscp1.c {before macscp2_2}}
 195 list_and_check_macro macscp3_2 WHERE {macscp3.h macscp1.c {before macscp3_2}}
 196
 197
 198 # Although GDB's macro table structures distinguish between multiple
 199 # #inclusions of the same file, GDB's other structures don't.  So the
 200 # `list' command here doesn't reliably select one #inclusion or the
 201 # other, even though it could.  It would be nice to eventually change
 202 # GDB's structures to handle this correctly.
 203 gdb_test "list macscp4_2_from_macscp2" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 204 switch -exact -- [info_macro WHERE] {
 205     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 206         pass "info macro WHERE after `list macscp_4_2_from_macscp2'"
 207     }
 208     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 209         # setup_kfail "gdb/555"
 210         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (gdb/555)"
 211     }
 212     timeout {
 213         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (timeout)"
 214     }
 215     default { fail "info macro WHERE after `list macscp_4_2_from_macscp2'" }
 216 }
 217
 218 gdb_test "list macscp4_2_from_macscp3" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 219 switch -exact -- [info_macro WHERE] {
 220     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 221         pass "info macro WHERE after `list macscp_4_2_from_macscp3'"
 222     }
 223     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 224         # setup_kfail "gdb/555"
 225         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (gdb/555)"
 226     }
 227     timeout {
 228         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (timeout)"
 229     }
 230     default { fail "info macro WHERE after `list macscp_4_2_from_macscp3'" }
 231 }
 232
 233
 234 #### Test the selection of the macro scope by the current frame.
 235
 236 ### A table of functions, in the order they will be reached, which is
 237 ### also the order they appear in the preprocessed output.  Each entry
 238 ### has the form {FUNCNAME WHERE KFAILWHERE}, where:
 239 ### - FUNCNAME is the name of the function,
 240 ### - WHERE is the definition we expect to see for the macro `WHERE', as
 241 ###   returned by `info_macro', and
 242 ### - KFAILWHERE is an alternate definition which should be reported
 243 ###   as a `known failure', due to GDB's inability to distinguish multiple
 244 ###   #inclusions of the same file.
 245 ### KFAILWHERE may be omitted.
 246
 247 set funcs {
 248     {
 249         macscp1_1
 250         {macscp1.c {before macscp1_1}}
 251     }
 252     {
 253         macscp2_1
 254         {macscp2.h macscp1.c {before macscp2_1}}
 255     }
 256     {
 257         macscp4_1_from_macscp2
 258         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 259         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 260     }
 261     {
 262         macscp4_2_from_macscp2
 263         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 264         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 265     }
 266     {
 267         macscp2_2
 268         {macscp2.h macscp1.c {before macscp2_2}}
 269     }
 270     {
 271         macscp1_2
 272         {macscp1.c {before macscp1_2}}
 273     }
 274     {
 275         macscp3_1
 276         {macscp3.h macscp1.c {before macscp3_1}}
 277     }
 278     {
 279         macscp4_1_from_macscp3
 280         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 281         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 282     }
 283     {
 284         macscp4_2_from_macscp3
 285         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 286         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 287     }
 288     {
 289         macscp3_2
 290         {macscp3.h macscp1.c {before macscp3_2}}
 291     }
 292     {
 293         macscp1_3
 294         {macscp1.c {before macscp1_3}}
 295     }
 296 }
 297
 298
 299 # Start the program running.
 300 if {! [runto_main]} {
 301     fail "macro tests suppressed: couldn't run to main"
 302     return 0
 303 }
 304
 305 # Set a breakpoint on each of the functions.
 306 foreach func_entry $funcs {
 307     set func [lindex $func_entry 0]
 308     gdb_test "break $func" "Breakpoint.*"
 309 }
 310
 311 # Run to each of the breakpoints and check the definition (or lack
 312 # thereof) of each macro.
 313 for {set i 0} {$i < [llength $funcs]} {incr i} {
 314     set func_entry [lindex $funcs $i]
 315     set func [lindex $func_entry 0]
 316     set expected [lindex $func_entry 1]
 317     set kfail_expected [lindex $func_entry 2]
 318
 319     # Run to the breakpoint for $func.
 320     gdb_test "continue" "Breakpoint $decimal, $func .*" "continue to $func"
 321
 322     # Check the macro WHERE.
 323     set result [info_macro WHERE]
 324     if {[string compare $result $expected] == 0} {
 325         pass "info macro WHERE stopped in $func"
 326     } elseif {[string compare $result $kfail_expected] == 0} {
 327         # setup_kfail "gdb/555"
 328         fail "info macro WHERE stopped in $func (gdb/555)"
 329     } elseif {[string compare $result timeout] == 0} {
 330         fail "info macro WHERE stopped in $func (timeout)"
 331     } else {
 332         fail "info macro WHERE stopped in $func"
 333     }
 334
 335     # Check that the BEFORE_<func> macros for all prior functions are
 336     # #defined, and that those for all subsequent functions are not.
 337     for {set j 0} {$j < [llength $funcs]} {incr j} {
 338         if {$j != $i} {
 339             set func_j_entry [lindex $funcs $j]
 340             set func_j [lindex $func_j_entry 0]
 341
 342             set before_macro "BEFORE_[string toupper $func_j]"
 343             set test_name \
 344                     "$before_macro defined/undefined when stopped at $func"
 345             set result [info_macro $before_macro]
 346
 347             # We can't get the right scope info when we're stopped in
 348             # the macro4_ functions.
 349             if {[string match macscp4_* $func]} {
 350                 # setup_kfail "gdb/555"
 351                 set test_name "$test_name (gdb/555)"
 352             }
 353             if {$j < $i} {
 354                 if {[llength $result] >= 2 && \
 355                         [string compare [lindex $result end] {}] == 0} {
 356                     pass $test_name
 357                 } elseif {[string compare $result timeout] == 0} {
 358                     fail "$test_name (timeout)"
 359                 } else {
 360                     fail "$test_name"
 361                 }
 362             } elseif {$j > $i} {
 363                 switch -- [lindex $result end] {
 364                     undefined { pass $test_name }
 365                     timeout { fail "$test_name (timeout)" }
 366                     default {
 367                         fail "$test_name"
 368                     }
 369                 }
 370             }
 371
 372             set until_macro "UNTIL_[string toupper $func_j]"
 373             set test_name \
 374                     "$until_macro defined/undefined when stopped at $func"
 375             set result [info_macro $until_macro]
 376
 377             # We can't get the right scope info when we're stopped in
 378             # the macro4_ functions.
 379             if {[string match macscp4_* $func]} {
 380                 # setup_kfail "gdb/555"
 381                 set test_name "$test_name (gdb/555)"
 382             }
 383             if {$j <= $i} {
 384                 switch -- [lindex $result end] {
 385                     undefined { pass $test_name }
 386                     timeout { fail "$test_name (timeout)" }
 387                     default {
 388                         fail "$test_name"
 389                     }
 390                 }
 391             } elseif {$j > $i} {
 392                 if {[llength $result] >= 2 && \
 393                         [string compare [lindex $result end] {}] == 0} {
 394                     pass $test_name
 395                 } elseif {[string compare $result timeout] == 0} {
 396                     fail "$test_name (timeout)"
 397                 } else {
 398                     fail "$test_name"
 399                 }
 400             }
 401         }
 402     }
 403 }