gdb/testsuite/gdb.base/macscp.exp

   1 # Test macro scoping.
   2 # Copyright 2002, 2007, 2008, 2009 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 if $tracelevel then {
  18     strace $tracelevel
  19 }
  20
  21 set prms_id 0
  22 set bug_id 0
  23
  24 set srcfile macscp1.c
  25 set testfile "macscp"
  26 set objfile ${objdir}/${subdir}/${testfile}.o
  27 set binfile ${objdir}/${subdir}/${testfile}
  28
  29 set options { debug additional_flags=-DFROM_COMMANDLINE=ARG}
  30
  31 get_compiler_info ${binfile}
  32 if [test_compiler_info gcc*] {
  33     lappend options additional_flags=-g3
  34 }
  35
  36 # Generate the intermediate object file.  This is required by Darwin to
  37 # have access to the .debug_macinfo section.
  38 if  {[gdb_compile "${srcdir}/${subdir}/macscp1.c" "${objfile}" \
  39           object $options] != ""
  40      || [gdb_compile "${objfile}" "${binfile}" executable $options] != "" } {
  41     untested macscp.exp
  42     return -1
  43 }
  44
  45 gdb_exit
  46 gdb_start
  47 gdb_reinitialize_dir $srcdir/$subdir
  48 gdb_load ${binfile}
  49
  50
  51 # Ask GDB to show the current definition of MACRO, and return a list
  52 # describing the result.
  53 #
  54 # The return value has the form {FILE1 FILE2 ... DEF}, which means
  55 # that MACRO has the definition `DEF', and was defined in `FILE1',
  56 # which was included from `FILE2', included from ... .
  57 #
  58 # If GDB says that MACRO has no definition, return the string `undefined'.
  59 #
  60 # If GDB complains that it doesn't have any information about
  61 # preprocessor macro definitions, return the string `no-macro-info'.
  62 #
  63 # If expect times out waiting for GDB, we return the string `timeout'.
  64 #
  65 # If GDB's output doesn't otherwise match what we're expecting, we
  66 # return the empty string.
  67
  68 proc info_macro {macro} {
  69     global gdb_prompt
  70
  71     set filepat {macscp[0-9]+\.[ch]}
  72     set definition {}
  73     set location {}
  74
  75     # Line number zero is set for macros defined from the compiler command-line.
  76     # Such macros are not being tested by this function.
  77     set nonzero {[1-9][0-9]*}
  78
  79     send_gdb "info macro ${macro}\n"
  80
  81     set debug_me 0
  82
  83     if {$debug_me} {exp_internal 1}
  84     gdb_expect {
  85         -re "Defined at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
  86             # `location' and `definition' should be empty when we see
  87             # this message.
  88             if {[llength $location] == 0 && [llength $definition] == 0} {
  89                 set location $expect_out(1,string)
  90                 exp_continue
  91             } else {
  92                 # Exit this expect loop, with a result indicating failure.
  93                 set definition {}
  94             }
  95         }
  96         -re "The symbol `${macro}' has no definition as a C/C\\+\\+ preprocessor macro\[^\r\n\]*\[\r\n\]" {
  97             # `location' and `definition' should be empty when we see
  98             # this message.
  99             if {[llength $location] == 0 && [llength $definition] == 0} {
 100                 set definition undefined
 101                 exp_continue
 102             } else {
 103                 # Exit this expect loop, with a result indicating failure.
 104                 set definition {}
 105             }
 106         }
 107         -re "^\[\r\n\]*  included at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
 108             # `location' should *not* be empty when we see this
 109             # message.  It should have recorded at least the initial
 110             # `Defined at ' message (for definitions) or ` at' message
 111             # (for undefined symbols).
 112             if {[llength $location] != 0} {
 113                 lappend location $expect_out(1,string)
 114                 exp_continue
 115             } else {
 116                 # Exit this expect loop, with a result indicating failure.
 117                 set definition {}
 118             }
 119         }
 120         -re "^\[\r\n\]*at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
 121             # This appears after a `has no definition' message.
 122             # `location' should be empty when we see it.
 123             if {[string compare $definition undefined] == 0 \
 124                     && [llength $location] == 0} {
 125                 set location $expect_out(1,string)
 126                 exp_continue
 127             } else {
 128                 # Exit this expect loop, with a result indicating failure.
 129                 set definition {}
 130             }
 131         }
 132         -re "#define ${macro} (\[^\r\n\]*)\[\r\n\]" {
 133             # `definition' should be empty when we see this message.
 134             if {[string compare $definition ""] == 0} {
 135                 set definition $expect_out(1,string)
 136                 exp_continue
 137             } else {
 138                 # Exit this expect loop, with a result indicating failure.
 139                 set definition {}
 140             }
 141         }
 142         -re "has no preprocessor macro information.*$gdb_prompt $" {
 143             set definition no-macro-info
 144         }
 145         -re "$gdb_prompt $" {
 146             # Exit the expect loop; let the existing value of `definition'
 147             # indicate failure or success.
 148         }
 149         timeout {
 150             set definition timeout
 151         }
 152     }
 153     if {$debug_me} {exp_internal 0}
 154
 155     switch -exact -- $definition {
 156         no-macro-info { return no-macro-info }
 157         timeout { return timeout }
 158         undefined { return undefined }
 159         default {
 160             if {[llength $location] >= 1} {
 161                 return [concat $location [list $definition]]
 162             } else {
 163                 return {}
 164             }
 165         }
 166     }
 167 }
 168
 169
 170 # Call info_macro to show the definition of MACRO.  Expect a result of
 171 # EXPECTED.  Use WHERE in pass/fail messages to identify the context.
 172 # Return non-zero if we should abort the entire test file, or zero if
 173 # we can continue.
 174 proc check_macro {macro expected where} {
 175     set func_def [info_macro $macro]
 176     if {[string compare $func_def $expected] == 0} {
 177         pass "info macro $macro $where"
 178     } else {
 179         switch -exact -- $func_def {
 180             no-macro-info {
 181                 xfail "executable includes no macro debugging information"
 182                 return 1
 183             }
 184             undefined {
 185                 fail "info macro $macro $where (undefined)"
 186                 return 1
 187             }
 188             timeout {
 189                 fail "info macro $macro $where (timeout)"
 190             }
 191             default {
 192                 fail "info macro $macro $where"
 193             }
 194         }
 195     }
 196     return 0
 197 }
 198
 199
 200 # List the function FUNC, and then show the definition of MACRO,
 201 # expecting the result EXPECTED.
 202 proc list_and_check_macro {func macro expected} {
 203     gdb_test "list $func" ".*${func}.*" "list $func for $macro"
 204     return [check_macro $macro $expected "after `list $func'"]
 205 }
 206
 207
 208 if {[list_and_check_macro main WHERE {macscp1.c {before macscp1_3}}]} {
 209     global verbose
 210     set macro_support "unknown"
 211     send_gdb "info source\n"
 212     gdb_test_multiple "info source" "Test macro information"  {
 213         -re "Includes preprocessor macro info\..*$gdb_prompt $" {
 214             set macro_support 1
 215             verbose "Source has macro information"
 216         }
 217         -re "Does not include preprocessor macro info\..*$gdb_prompt $" {
 218             set macro_support 0
 219             verbose "Source has no macro information"
 220         }
 221         default {
 222             warning "couldn't check macro support (no valid response)."
 223         }
 224     }
 225     if {$macro_support == 0} {
 226         unsupported "Skipping test because debug information does not include macro information."
 227         return 0
 228     }
 229 }
 230
 231 list_and_check_macro macscp2_2 WHERE {macscp2.h macscp1.c {before macscp2_2}}
 232 list_and_check_macro macscp3_2 WHERE {macscp3.h macscp1.c {before macscp3_2}}
 233
 234
 235 # Assuming the current position inside program by `list' from above.
 236 gdb_test "info macro FROM_COMMANDLINE" \
 237          "Defined at \[^\r\n\]*:0\r\n-DFROM_COMMANDLINE=ARG"
 238
 239
 240 # Although GDB's macro table structures distinguish between multiple
 241 # #inclusions of the same file, GDB's other structures don't.  So the
 242 # `list' command here doesn't reliably select one #inclusion or the
 243 # other, even though it could.  It would be nice to eventually change
 244 # GDB's structures to handle this correctly.
 245 gdb_test "list macscp4_2_from_macscp2" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 246 switch -exact -- [info_macro WHERE] {
 247     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 248         pass "info macro WHERE after `list macscp_4_2_from_macscp2'"
 249     }
 250     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 251         setup_kfail *-*-* "gdb/555"
 252         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (gdb/555)"
 253     }
 254     timeout {
 255         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (timeout)"
 256     }
 257     default { fail "info macro WHERE after `list macscp_4_2_from_macscp2'" }
 258 }
 259
 260 gdb_test "list macscp4_2_from_macscp3" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 261 switch -exact -- [info_macro WHERE] {
 262     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 263         pass "info macro WHERE after `list macscp_4_2_from_macscp3'"
 264     }
 265     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 266         setup_kfail *-*-* "gdb/555"
 267         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (gdb/555)"
 268     }
 269     timeout {
 270         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (timeout)"
 271     }
 272     default { fail "info macro WHERE after `list macscp_4_2_from_macscp3'" }
 273 }
 274
 275
 276 #### Test the selection of the macro scope by the current frame.
 277
 278 ### A table of functions, in the order they will be reached, which is
 279 ### also the order they appear in the preprocessed output.  Each entry
 280 ### has the form {FUNCNAME WHERE KFAILWHERE}, where:
 281 ### - FUNCNAME is the name of the function,
 282 ### - WHERE is the definition we expect to see for the macro `WHERE', as
 283 ###   returned by `info_macro', and
 284 ### - KFAILWHERE is an alternate definition which should be reported
 285 ###   as a `known failure', due to GDB's inability to distinguish multiple
 286 ###   #inclusions of the same file.
 287 ### KFAILWHERE may be omitted.
 288
 289 set funcs {
 290     {
 291         macscp1_1
 292         {macscp1.c {before macscp1_1}}
 293     }
 294     {
 295         macscp2_1
 296         {macscp2.h macscp1.c {before macscp2_1}}
 297     }
 298     {
 299         macscp4_1_from_macscp2
 300         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 301         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 302     }
 303     {
 304         macscp4_2_from_macscp2
 305         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 306         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 307     }
 308     {
 309         macscp2_2
 310         {macscp2.h macscp1.c {before macscp2_2}}
 311     }
 312     {
 313         macscp1_2
 314         {macscp1.c {before macscp1_2}}
 315     }
 316     {
 317         macscp3_1
 318         {macscp3.h macscp1.c {before macscp3_1}}
 319     }
 320     {
 321         macscp4_1_from_macscp3
 322         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 323         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 324     }
 325     {
 326         macscp4_2_from_macscp3
 327         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 328         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 329     }
 330     {
 331         macscp3_2
 332         {macscp3.h macscp1.c {before macscp3_2}}
 333     }
 334     {
 335         macscp1_3
 336         {macscp1.c {before macscp1_3}}
 337     }
 338 }
 339
 340 proc maybe_kfail { func test_name } {
 341     # We can't get the right scope info when we're stopped in
 342     # the macro4_ functions.
 343     if {[string match macscp4_* $func]} {
 344         kfail gdb/555 "$test_name"
 345     } else {
 346         fail "$test_name"
 347     }
 348 }
 349
 350 # Start the program running.
 351 if {! [runto_main]} {
 352     fail "macro tests suppressed: couldn't run to main"
 353     return 0
 354 }
 355
 356 # Set a breakpoint on each of the functions.
 357 foreach func_entry $funcs {
 358     set func [lindex $func_entry 0]
 359     gdb_test "break $func" "Breakpoint.*"
 360 }
 361
 362 # Run to each of the breakpoints and check the definition (or lack
 363 # thereof) of each macro.
 364 for {set i 0} {$i < [llength $funcs]} {incr i} {
 365     set func_entry [lindex $funcs $i]
 366     set func [lindex $func_entry 0]
 367     set expected [lindex $func_entry 1]
 368     set kfail_expected [lindex $func_entry 2]
 369
 370     # Run to the breakpoint for $func.
 371     gdb_test "continue" "Breakpoint $decimal, $func .*" "continue to $func"
 372
 373     # Check the macro WHERE.
 374     set result [info_macro WHERE]
 375     if {[string compare $result $expected] == 0} {
 376         pass "info macro WHERE stopped in $func"
 377     } elseif {[string compare $result $kfail_expected] == 0} {
 378         setup_kfail *-*-* "gdb/555"
 379         fail "info macro WHERE stopped in $func (gdb/555)"
 380     } elseif {[string compare $result timeout] == 0} {
 381         fail "info macro WHERE stopped in $func (timeout)"
 382     } else {
 383         fail "info macro WHERE stopped in $func"
 384     }
 385
 386     # Check that the BEFORE_<func> macros for all prior functions are
 387     # #defined, and that those for all subsequent functions are not.
 388     for {set j 0} {$j < [llength $funcs]} {incr j} {
 389         if {$j != $i} {
 390             set func_j_entry [lindex $funcs $j]
 391             set func_j [lindex $func_j_entry 0]
 392
 393             set before_macro "BEFORE_[string toupper $func_j]"
 394             set test_name \
 395                     "$before_macro defined/undefined when stopped at $func"
 396             set result [info_macro $before_macro]
 397
 398             if {$j < $i} {
 399                 if {[llength $result] >= 2 && \
 400                         [string compare [lindex $result end] {}] == 0} {
 401                     pass $test_name
 402                 } elseif {[string compare $result timeout] == 0} {
 403                     fail "$test_name (timeout)"
 404                 } else {
 405                     maybe_kfail $func "$test_name"
 406                 }
 407             } elseif {$j > $i} {
 408                 switch -- [lindex $result end] {
 409                     undefined { pass $test_name }
 410                     timeout { fail "$test_name (timeout)" }
 411                     default {
 412                         maybe_kfail $func "$test_name"
 413                     }
 414                 }
 415             }
 416
 417             set until_macro "UNTIL_[string toupper $func_j]"
 418             set test_name \
 419                     "$until_macro defined/undefined when stopped at $func"
 420             set result [info_macro $until_macro]
 421
 422             if {$j <= $i} {
 423                 switch -- [lindex $result end] {
 424                     undefined { pass $test_name }
 425                     timeout { fail "$test_name (timeout)" }
 426                     default {
 427                         maybe_kfail $func "$test_name"
 428                     }
 429                 }
 430             } elseif {$j > $i} {
 431                 if {[llength $result] >= 2 && \
 432                         [string compare [lindex $result end] {}] == 0} {
 433                     pass $test_name
 434                 } elseif {[string compare $result timeout] == 0} {
 435                     fail "$test_name (timeout)"
 436                 } else {
 437                     maybe_kfail $func "$test_name"
 438                 }
 439             }
 440         }
 441     }
 442 }
 443
 444 gdb_test "break [gdb_get_line_number "set breakpoint here"]" \
 445     "Breakpoint.*at.* file .*, line.*" \
 446     "breakpoint macscp_expr"
 447
 448 gdb_test "continue" "foo = 0;.*" "continue to macsp_expr"
 449
 450 gdb_test "print address.addr" \
 451   " = 0" \
 452   "print address.addr"
 453
 454 gdb_test "print MACRO_TO_EXPAND" \
 455     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 456     "print expression with macro before define."
 457
 458 gdb_test "next" "foo = 1;" "next to definition 1"
 459
 460 gdb_test "print MACRO_TO_EXPAND" \
 461     " = 0" \
 462     "print expression with macro in scope."
 463
 464 gdb_test "macro define MACRO_TO_EXPAND 72" \
 465   "" \
 466   "user macro override"
 467
 468 gdb_test "print MACRO_TO_EXPAND" \
 469   " = 72" \
 470   "choose user macro"
 471
 472 gdb_test "macro undef MACRO_TO_EXPAND" \
 473   "" \
 474   "remove user override"
 475
 476 gdb_test "print MACRO_TO_EXPAND" \
 477     " = 0" \
 478     "print expression with macro after removing override"
 479
 480 gdb_test "next" "foo = 2;" "next to definition 2"
 481
 482 gdb_test "print MACRO_TO_EXPAND" \
 483     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 484     "print expression with macro after undef."
 485
 486 gdb_test "macro define MACRO_TO_EXPAND 5" \
 487   "" \
 488   "basic macro define"
 489
 490 gdb_test "print MACRO_TO_EXPAND" \
 491   " = 5" \
 492   "expansion of defined macro"
 493
 494 gdb_test "macro list" \
 495   "macro define MACRO_TO_EXPAND 5" \
 496   "basic macro list"
 497
 498 gdb_test "macro define MACRO_TO_EXPAND(x) x" \
 499   "" \
 500   "basic redefine, macro with args"
 501
 502 gdb_test "print MACRO_TO_EXPAND (7)" \
 503   " = 7" \
 504   "expansion of macro with arguments"
 505
 506 gdb_test "macro undef MACRO_TO_EXPAND" \
 507   "" \
 508   "basic macro undef"
 509
 510 gdb_test "print MACRO_TO_EXPAND" \
 511     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 512     "print expression with macro after user undef."
 513
 514 # Regression test; this used to crash.
 515 gdb_test "macro define" \
 516     "usage: macro define.*" \
 517     "macro define with no arguments"
 518
 519 # Regression test; this used to crash.
 520 gdb_test "macro undef" \
 521     "usage: macro undef.*" \
 522     "macro undef with no arguments"
 523
 524 # Completion tests.
 525
 526 # The macro FIFTY_SEVEN is in scope at this point.
 527 send_gdb "p FIFTY_\t"
 528 gdb_expect  {
 529         -re "^p FIFTY_SEVEN $"\
 530             { send_gdb "\n"
 531               gdb_expect {
 532                       -re "^.* = 57.*$gdb_prompt $"\
 533                                         { pass "complete 'p FIFTY_SEVEN'"}
 534                       -re ".*$gdb_prompt $" { fail "complete 'p FIFTY_SEVEN'"}
 535                       timeout           {fail "(timeout) complete 'p FIFTY_SEVEN'"}
 536                      }
 537             }
 538         -re ".*$gdb_prompt $"       { fail "complete 'p FIFTY_SEVEN'" }
 539         timeout         { fail "(timeout) complete 'p FIFTY_SEVEN' 2" }
 540         }
 541
 542 # The macro TWENTY_THREE is not in scope.
 543 send_gdb "p TWENTY_\t"
 544 gdb_expect  {
 545         -re "^p TWENTY_\\\x07$"\
 546             { send_gdb "\n"
 547               gdb_expect {
 548                       -re "No symbol \"TWENTY_\" in current context\\..*$gdb_prompt $"\
 549                                         { pass "complete 'p TWENTY_'"}
 550                       -re ".*$gdb_prompt $" { fail "complete 'p TWENTY_'"}
 551                       timeout           {fail "(timeout) complete 'p TWENTY_'"}
 552                      }
 553             }
 554         -re ".*$gdb_prompt $"       { fail "complete 'p TWENTY_'" }
 555         timeout         { fail "(timeout) complete 'p TWENTY_' 2" }
 556         }
 557
 558 # The macro FORTY_EIGHT was undefined and thus is not in scope.
 559 send_gdb "p FORTY_\t"
 560 gdb_expect  {
 561         -re "^p FORTY_\\\x07$"\
 562             { send_gdb "\n"
 563               gdb_expect {
 564                       -re "No symbol \"FORTY_\" in current context\\..*$gdb_prompt $"\
 565                                         { pass "complete 'p FORTY_'"}
 566                       -re ".*$gdb_prompt $" { fail "complete 'p FORTY_'"}
 567                       timeout           {fail "(timeout) complete 'p FORTY_'"}
 568                      }
 569             }
 570         -re ".*$gdb_prompt $"       { fail "complete 'p FORTY_'" }
 571         timeout         { fail "(timeout) complete 'p FORTY_' 2" }
 572         }
 573
 574 gdb_test "macro define TWENTY_THREE 25" \
 575   "" \
 576   "defining TWENTY_THREE"
 577
 578 # User-defined macros are always in scope.
 579 send_gdb "p TWENTY_\t"
 580 gdb_expect  {
 581         -re "^p TWENTY_THREE $"\
 582             { send_gdb "\n"
 583               gdb_expect {
 584                       -re "^.* = 25.*$gdb_prompt $"\
 585                                         { pass "complete 'p TWENTY_THREE'"}
 586                       -re ".*$gdb_prompt $" { fail "complete 'p TWENTY_THREE'"}
 587                       timeout           {fail "(timeout) complete 'p TWENTY_THREE'"}
 588                      }
 589             }
 590         -re ".*$gdb_prompt $"       { fail "complete 'p TWENTY_THREE'" }
 591         timeout         { fail "(timeout) complete 'p TWENTY_THREE' 2" }
 592         }
 593
 594 # Splicing tests.
 595
 596 gdb_test "macro expand SPLICE(x, y)" \
 597   "expands to: xy" \
 598   "basic macro splicing"
 599
 600 gdb_test "macro define robotinvasion 2010" \
 601   "" \
 602   "define splice helper"
 603
 604 gdb_test "macro expand SPLICE(robot, invasion)" \
 605   "expands to: *2010" \
 606   "splicing plus expansion"
 607
 608 # Varargs tests.
 609
 610 gdb_test "macro define va_c99(...) varfunc (fixedarg, __VA_ARGS__)" \
 611   "" \
 612   "define first varargs helper"
 613
 614 gdb_test "macro define va2_c99(x, y, ...) varfunc (fixedarg, x, y, __VA_ARGS__)" \
 615   "" \
 616   "define second varargs helper"
 617
 618 gdb_test "macro define va_gnu(args...) varfunc (fixedarg, args)" \
 619   "" \
 620   "define third varargs helper"
 621
 622 gdb_test "macro define va2_gnu(args...) varfunc (fixedarg, ## args)" \
 623   "" \
 624   "define fourth varargs helper"
 625
 626 gdb_test "macro expand va_c99(one, two, three)" \
 627   "expands to: *varfunc \\(fixedarg, *one, two, three\\)" \
 628   "c99 varargs expansion"
 629
 630 gdb_test "macro expand va_c99()" \
 631   "expands to: *varfunc \\(fixedarg, *\\)" \
 632   "c99 varargs expansion without an argument"
 633
 634 gdb_test "macro expand va2_c99(one, two, three, four)" \
 635   "expands to: *varfunc \\(fixedarg, *one, two, three, four\\)" \
 636   "c99 varargs expansion, multiple formal arguments"
 637
 638 gdb_test "macro expand va_gnu(one, two, three, four)" \
 639   "expands to: *varfunc \\(fixedarg, *one, two, three, four\\)" \
 640   "gnu varargs expansion"
 641
 642 gdb_test "macro expand va_gnu()" \
 643   "expands to: *varfunc \\(fixedarg, *\\)" \
 644   "gnu varargs expansion without an argument"
 645
 646 gdb_test "macro expand va2_gnu()" \
 647   "expands to: *varfunc \\(fixedarg\\)" \
 648   "gnu varargs expansion special splicing without an argument"
 649
 650 # Stringification tests.
 651
 652 gdb_test "macro define str(x) #x" \
 653   "" \
 654   "define stringification macro"
 655
 656 gdb_test "macro define maude 5" \
 657   "" \
 658   "define first stringification helper"
 659
 660 gdb_test "macro define xstr(x) str(x)" \
 661   "" \
 662   "define second stringification helper"
 663
 664 gdb_test "print str(5)" \
 665   " = \"5\"" \
 666   "simple stringify"
 667
 668 gdb_test "print str(hi bob)" \
 669   " = \"hi bob\"" \
 670   "stringify with one space"
 671
 672 gdb_test "print str(  hi  bob  )" \
 673   " = \"hi bob\"" \
 674   "stringify with many spaces"
 675
 676 gdb_test "print str(hi \"bob\")" \
 677   " = \"hi \\\\\"bob\\\\\"\"" \
 678   "stringify with quotes"
 679
 680 gdb_test "print str(hi \\bob\\)" \
 681   " = \"hi \\\\\\\\bob\\\\\\\\\"" \
 682   "stringify with backslashes"
 683
 684 gdb_test "print str(maude)" \
 685   " = \"maude\"" \
 686   "stringify without substitution"
 687
 688 gdb_test "print xstr(maude)" \
 689   " = \"5\"" \
 690   "stringify with substitution"
 691
 692 # Regression test for pp-number bug.
 693 gdb_test "macro define si_addr fields.fault.si_addr" \
 694   "" \
 695   "define si_addr macro"
 696 gdb_test "macro expand siginfo.si_addr" \
 697   "expands to: siginfo.fields.fault.si_addr" \
 698   "macro expand siginfo.si_addr"